/* ==========================================================================
   Design Tokens & Root Variables
   ========================================================================== */
:root {
    /* Theme Colors */
    --bg-dark: #060913;
    --bg-card: rgba(13, 20, 37, 0.55);
    --bg-navbar: rgba(6, 9, 19, 0.75);
    
    /* Text Colors */
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    
    /* Branding Accent Colors */
    --primary-green: #12d640;
    --primary-green-rgb: 18, 214, 64;
    --primary-green-glow: rgba(18, 214, 64, 0.15);
    
    --accent-cyan: #06b6d4;
    --accent-indigo: #6366f1;
    --accent-purple: #a855f7;
    
    /* Borders & Outlines */
    --border-color: rgba(255, 255, 255, 0.05);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-glow: rgba(18, 214, 64, 0.3);
    
    /* Fonts */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Outfit', sans-serif;
    
    /* Animations & Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Shapes */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

/* ==========================================================================
   Base CSS & Layout Normalization
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-primary);
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(circle at 50% 300px, rgba(18, 214, 64, 0.04) 0%, transparent 60%),
        linear-gradient(rgba(255, 255, 255, 0.007) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.007) 1px, transparent 1px);
    background-size: 100% 100%, 50px 50px, 50px 50px;
    background-position: center;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-green);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   Background Glowing Mesh Blobs
   ========================================================================== */
.blob-glow {
    position: fixed;
    width: 50vw;
    height: 50vw;
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.12;
    z-index: -1;
    pointer-events: none;
}

.blob-1 {
    top: -10%;
    left: -10%;
    background: radial-gradient(circle, var(--primary-green) 0%, transparent 70%);
}

.blob-2 {
    bottom: 10%;
    right: -10%;
    background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
}

.blob-3 {
    top: 40%;
    left: 30%;
    background: radial-gradient(circle, var(--accent-indigo) 0%, transparent 70%);
}

/* ==========================================================================
   Navbar & Navigation System
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-navbar);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
    opacity: 0;
    animation: slideDownHeader 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.navbar.scrolled {
    height: 70px;
    background-color: rgba(6, 9, 19, 0.9);
}

.nav-container {
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.4rem;
    letter-spacing: -0.5px;
}

.logo-icon {
    color: var(--primary-green);
    font-weight: 800;
}

.logo-accent {
    color: var(--primary-green);
}

.nav-menu ul {
    list-style: none;
    display: flex;
    gap: 28px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-green);
    transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-main);
}

.nav-link.active::after, .nav-link:hover::after {
    width: 100%;
}

/* Mobile Menu Toggle Button */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    height: 20px;
    justify-content: space-between;
}

.mobile-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-main);
    transition: var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    min-height: 100vh;
    padding-top: 120px;
    padding-bottom: 60px;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 80px;
    align-items: center;
    width: 100%;
}

.hero-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-badge {
    background-color: rgba(18, 214, 64, 0.1);
    color: var(--primary-green);
    border: 1px solid rgba(18, 214, 64, 0.2);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 12px;
}

.typed-text-container {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 24px;
    min-height: 48px;
    height: auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 10px;
}

.typed-wrapper {
    display: inline-flex;
    align-items: center;
}

.typed-intro {
    color: var(--text-main);
}

.typed-text {
    color: var(--primary-green);
    text-shadow: 0 0 15px rgba(18, 214, 64, 0.2);
}

.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--primary-green);
    animation: blink 0.75s step-end infinite;
}

@keyframes blink {
    from, to { background-color: transparent }
    50% { background-color: var(--primary-green); }
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 1.15rem;
    max-width: 580px;
    margin-bottom: 32px;
}

.hero-social-links {
    display: flex;
    gap: 16px;
    margin-bottom: 36px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
}

.social-icon:hover {
    color: var(--primary-green);
    border-color: var(--primary-green);
    box-shadow: 0 0 10px var(--primary-green-glow);
    transform: translateY(-3px);
}

.hero-actions {
    display: flex;
    gap: 16px;
}

/* Button UI Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-primary {
    background-color: var(--primary-green);
    color: #000;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(18, 214, 64, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-green);
    color: var(--primary-green);
    background-color: rgba(18, 214, 64, 0.05);
    box-shadow: 0 0 10px rgba(18, 214, 64, 0.15);
}

/* Profile Card Styling */
.hero-profile {
    display: flex;
    justify-content: center;
}

.profile-card-wrapper {
    position: relative;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.profile-card-wrapper::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-cyan));
    border-radius: var(--radius-lg);
    z-index: -1;
    filter: blur(15px);
    opacity: 0.3;
    transition: opacity 0.6s ease, filter 0.6s ease;
}

.profile-card-wrapper:hover {
    transform: translateY(-8px) scale(1.02);
}

.profile-card-wrapper:hover::after {
    opacity: 0.6;
    filter: blur(22px);
}

.profile-card-wrapper:hover .profile-card {
    border-color: var(--primary-green);
}

.profile-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-lg);
    transition: border-color 0.6s ease;
    padding: 24px;
    width: 100%;
    max-width: 320px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.profile-image-container {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    margin-bottom: 20px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(10, 10, 22, 0.6);
    box-shadow: 0 0 30px rgba(18, 214, 64, 0.15);
}

/* Futuristic HUD rotating outer rings */
.profile-image-container::before {
    content: '';
    position: absolute;
    top: -6px;
    left: -6px;
    right: -6px;
    bottom: -6px;
    border-radius: 50%;
    border: 2px dashed rgba(18, 214, 64, 0.6);
    border-top-color: transparent;
    border-bottom-color: transparent;
    animation: spinHUD 12s linear infinite;
    pointer-events: none;
}

.profile-image-container::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    border-radius: 50%;
    border: 1.5px dotted rgba(0, 242, 254, 0.5);
    border-left-color: transparent;
    border-right-color: transparent;
    animation: spinHUDReverse 8s linear infinite;
    pointer-events: none;
}

.profile-avatar {
    width: 156px;
    height: 156px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-green);
    box-shadow: 0 0 15px rgba(18, 214, 64, 0.25);
    z-index: 2;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.6s ease, box-shadow 0.6s ease;
}

.profile-card-wrapper:hover .profile-avatar {
    transform: scale(1.04);
    border-color: var(--primary-green);
    box-shadow: 0 0 25px rgba(18, 214, 64, 0.5);
}

.profile-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.profile-role {
    color: var(--primary-green);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
}

.profile-quick-stats {
    display: flex;
    justify-content: space-around;
    width: 100%;
    border-top: 1px solid var(--border-color);
    padding-top: 18px;
}

.quick-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.quick-stat-num {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 800;
}

.quick-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Section Global Layout
   ========================================================================== */
.section {
    padding: 100px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    max-width: 720px;
    margin-bottom: 60px;
}

.section-tag {
    color: var(--primary-green);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.7;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-info-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 36px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.info-card-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 18px;
}

.bio-text {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 28px;
}

.bio-meta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

.meta-item {
    display: flex;
    flex-direction: column;
}

.meta-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.meta-value {
    font-weight: 600;
    font-size: 1rem;
}

.meta-value a:hover {
    color: var(--primary-green);
}

.interests-container {
    display: flex;
    flex-direction: column;
}

.interests-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.interests-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.interest-item-card {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition-fast);
}

.interest-item-card:hover {
    background-color: rgba(18, 214, 64, 0.06);
    border-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(18, 214, 64, 0.15);
}

.interest-icon {
    font-size: 1.3rem;
}

.interest-item-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

/* ==========================================================================
   Education Section
   ========================================================================== */
.education-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.education-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: var(--transition-smooth);
}

.education-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-green);
    box-shadow: 0 10px 30px rgba(18, 214, 64, 0.12), 0 0 15px rgba(18, 214, 64, 0.05);
}

.edu-logo-row {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}

.edu-logo {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.edu-header-text h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
}

.edu-date {
    color: var(--primary-green);
    font-size: 0.85rem;
    font-weight: 600;
}

.edu-degree {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.coursework-title {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.coursework-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.coursework-list li {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Experience Section
   ========================================================================== */
.experience-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline-bar {
    position: absolute;
    top: 0;
    left: 20px;
    width: 2px;
    height: 100%;
    background-color: var(--border-color);
}

.timeline-block {
    position: relative;
    padding-left: 60px;
    margin-bottom: 48px;
}

.timeline-block:last-child {
    margin-bottom: 0;
}

.timeline-badge {
    position: absolute;
    left: 11px;
    top: 6px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--bg-dark);
    border: 3px solid var(--primary-green);
    box-shadow: 0 0 10px rgba(18, 214, 64, 0.4);
    z-index: 10;
    transition: var(--transition-fast);
}

.timeline-block:hover .timeline-badge {
    background-color: var(--primary-green);
    transform: scale(1.3);
    box-shadow: 0 0 20px var(--primary-green), 0 0 10px var(--primary-green);
}

.timeline-date {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: 6px;
}

.timeline-content-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.6s ease, box-shadow 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.timeline-block:hover .timeline-content-card {
    border-color: var(--primary-green);
    transform: translateX(8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25), 0 0 15px rgba(18, 214, 64, 0.08);
}

.exp-role {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
}

.exp-company {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.exp-company a:hover {
    color: var(--primary-green);
}

.exp-bullet-list {
    padding-left: 18px;
}

.exp-bullet-list li {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    line-height: 1.6;
}

.exp-bullet-list li:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   Certifications Section
   ========================================================================== */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.cert-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.cert-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-green);
    box-shadow: 0 10px 30px rgba(18, 214, 64, 0.12), 0 0 15px rgba(18, 214, 64, 0.05);
}

.cert-image-container {
    height: 160px;
    background-color: #0b1120;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.cert-img {
    height: 100%;
    width: 100%;
    object-fit: cover;
    opacity: 0.95;
    transition: var(--transition-smooth);
}

.cert-card:hover .cert-img {
    transform: scale(1.05);
}

.cert-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.cert-content h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.cert-issuer {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 18px;
}

.cert-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-green);
    margin-top: auto;
}

.cert-link:hover {
    color: var(--text-main);
    transform: translateX(3px);
}

/* ==========================================================================
   Projects Showcase Section
   ========================================================================== */
.projects-filter-container {
    display: flex;
    justify-content: center;
    margin-bottom: 44px;
}

.projects-filter {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 6px;
    border-radius: 50px;
    display: flex;
    gap: 4px;
}

.filter-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn:hover {
    color: var(--primary-green);
    text-shadow: 0 0 8px rgba(18, 214, 64, 0.4);
}

.filter-btn.active {
    background-color: var(--primary-green);
    color: #000;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.6s ease, box-shadow 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card.hidden {
    display: none;
}

.project-card:hover {
    transform: translateY(-8px) scale(1.015);
    border-color: var(--primary-green);
    box-shadow: 0 20px 40px rgba(18, 214, 64, 0.18), 0 0 20px rgba(18, 214, 64, 0.05);
}

.project-img-wrapper {
    height: 180px;
    overflow: hidden;
    position: relative;
}

.project-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.project-card:hover .project-card-img {
    transform: scale(1.05);
}

.project-card-overlay {
    position: absolute;
    top: 12px;
    left: 12px;
}

.project-card-category {
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-main);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
}

.project-card-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-card-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.project-card-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.5;
}

.btn-card-details {
    margin-top: auto;
    font-size: 0.85rem;
    padding: 10px;
    width: 100%;
}

/* ==========================================================================
   Skills Section
   ========================================================================== */
.skills-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.skills-card {
    background-color: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.6s ease, box-shadow 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.skills-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-green);
    box-shadow: 0 16px 36px rgba(18, 214, 64, 0.12), 0 0 15px rgba(18, 214, 64, 0.05);
}

.skills-card h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--primary-green);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.tech-pills-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.tech-pill {
    background-color: #fff;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    height: 48px;
}

.tech-pill img {
    max-height: 28px;
    max-width: 100px;
    object-fit: contain;
}

.tech-pill:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(18, 214, 64, 0.4);
}

/* ==========================================================================
   Resume & Links Section
   ========================================================================== */
.links-cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.link-resource-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 36px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.6s ease, box-shadow 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.link-resource-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-green);
    box-shadow: 0 16px 36px rgba(18, 214, 64, 0.12), 0 0 15px rgba(18, 214, 64, 0.05);
}

.resource-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background-color: rgba(18, 214, 64, 0.1);
    color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.link-resource-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.link-resource-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
    line-height: 1.6;
}

.link-resource-card .btn {
    width: 100%;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-cards-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-info-block {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    gap: 20px;
    align-items: center;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.6s ease, box-shadow 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.contact-info-block:hover {
    transform: translateY(-4px);
    border-color: var(--primary-green);
    box-shadow: 0 10px 25px rgba(18, 214, 64, 0.1), 0 0 15px rgba(18, 214, 64, 0.04);
}

.contact-info-icon {
    font-size: 1.8rem;
    width: 48px;
    height: 48px;
    background-color: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-info-details h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-info-details p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.contact-info-details a:hover {
    color: var(--primary-green);
}

.contact-form-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 36px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-input {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-input:hover {
    border-color: var(--primary-green);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-green);
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 10px rgba(18, 214, 64, 0.1);
}

.text-area {
    resize: vertical;
    min-height: 120px;
}

.error-message {
    color: #ef4444;
    font-size: 0.75rem;
    display: none;
    margin-top: 4px;
}

.form-input.invalid {
    border-color: #ef4444;
}

.btn-submit {
    gap: 10px;
}

.submit-icon {
    font-size: 1.1rem;
}

/* Alert Notification Panel */
.form-alert {
    margin-top: 20px;
    padding: 16px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    transition: var(--transition-fast);
}

.form-alert.success {
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.form-alert.error {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.form-alert.hidden {
    display: none;
}

.alert-content {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    border-top: 1px solid var(--border-color);
    background-color: #04060c;
    padding: 60px 24px 20px 24px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.footer-logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 320px;
}

.footer-links h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 18px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-links a:hover {
    color: var(--primary-green);
    padding-left: 3px;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255,255,255,0.03);
    padding-top: 24px;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.back-to-top {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-main);
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.back-to-top:hover {
    border-color: var(--primary-green);
    color: var(--primary-green);
    transform: translateY(-3px);
}

/* ==========================================================================
   Modern Vanilla JS Modal Styles
   ========================================================================== */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(4, 6, 12, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 1;
    transition: var(--transition-smooth);
}

.modal-backdrop.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-container {
    background-color: #0c1122;
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 800px;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    padding: 40px;
    box-shadow: 0 15px 50px rgba(0,0,0,0.5);
    animation: modalReveal 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modalReveal {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.8rem;
    cursor: pointer;
    line-height: 1;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.modal-close-btn:hover {
    color: var(--primary-green);
    background-color: rgba(255,255,255,0.03);
}

.modal-body-content {
    color: var(--text-main);
}

/* Spinner inside details loader */
.modal-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(18, 214, 64, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary-green);
    animation: spin 1s ease-in-out infinite;
    margin: 40px auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   Responsive Adaptations (Media Queries)
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
        padding-top: 40px;
    }
    
    .hero-info {
        align-items: center;
    }
    
    .hero-title {
        font-size: 3.2rem;
    }
    
    .typed-text-container {
        font-size: 1.8rem;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        text-align: center;
        min-height: 56px;
        height: auto;
        gap: 6px 10px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    
    .education-grid {
        grid-template-columns: 1fr;
    }
    
    .links-cards-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .navbar {
        height: 70px;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-actions {
        flex-direction: column !important;
        width: 100% !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 12px !important;
    }
    
    .hero-actions .btn {
        width: 100% !important;
        max-width: 280px !important;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: #060913;
        border-top: 1px solid var(--border-color);
        padding: 40px 24px;
        transition: var(--transition-smooth);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-menu ul {
        flex-direction: column;
        align-items: center;
        gap: 32px;
    }
    
    .nav-link {
        font-size: 1.2rem;
    }
    
    .section {
        padding: 60px 24px;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .hero-title {
        font-size: 2.6rem;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .timeline-block:hover .timeline-content-card {
        transform: none;
    }
}

/* ==========================================================================
   Modal Project Details Custom Styles
   ========================================================================== */
.modal-project-details h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-green);
}

.modal-project-details ul {
    list-style: none;
    margin-bottom: 24px;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
}

.modal-project-details ul li {
    font-size: 0.95rem;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
}

.modal-project-details ul li:last-child {
    border-bottom: none;
}

.modal-project-details ul li strong {
    color: var(--text-main);
    margin-right: 8px;
}

.modal-project-details ul li a {
    color: var(--primary-green);
    font-weight: 600;
}

.modal-project-details ul li a:hover {
    text-decoration: underline;
}

.modal-project-details p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* ==========================================================================
   Multi-language Switcher Styles
   ========================================================================== */
.lang-es {
    display: none !important;
}

.lang-en {
    display: inline;
}

div.lang-en, p.lang-en, section.lang-en, article.lang-en, ul.lang-en, li.lang-en, h1.lang-en, h2.lang-en, h3.lang-en, h4.lang-en, span.lang-en.block {
    display: block;
}

body.es-active .lang-en {
    display: none !important;
}

body.es-active .lang-es {
    display: inline !important;
}

body.es-active div.lang-es, 
body.es-active p.lang-es, 
body.es-active section.lang-es, 
body.es-active article.lang-es, 
body.es-active ul.lang-es, 
body.es-active li.lang-es,
body.es-active h1.lang-es,
body.es-active h2.lang-es,
body.es-active h3.lang-es,
body.es-active h4.lang-es,
body.es-active span.lang-es.block {
    display: block !important;
}

.lang-toggle-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main) !important; /* Evita que el navegador o temas fuercen las letras a negro */
    padding: 6px 14px;
    border-radius: 50px;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.lang-toggle-btn:hover {
    border-color: var(--primary-green);
    box-shadow: 0 0 10px rgba(18, 214, 64, 0.2);
    transform: translateY(-1px);
}

/* Floating WhatsApp Button */
.whatsapp-float {
    position: fixed;
    width: 55px;
    height: 55px;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: #fff !important;
    border-radius: 50px;
    text-align: center;
    font-size: 26px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
    display: block;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1) rotate(8deg);
    box-shadow: 0 6px 16px rgba(37, 211, 102, 0.4);
    background-color: #20ba5a;
}

/* Evita que el display: inline !important de la traducción rompa el contenedor flexbox del botón flotante */
body.es-active a.whatsapp-float.lang-es,
body:not(.es-active) a.whatsapp-float.lang-en {
    display: flex !important;
}

@media (max-width: 768px) {
    .whatsapp-float {
        width: 48px;
        height: 48px;
        bottom: 20px;
        right: 20px;
        font-size: 22px;
    }
    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }
}

@media (max-width: 480px) {
    .whatsapp-float {
        width: 44px;
        height: 44px;
        bottom: 16px;
        right: 16px;
        font-size: 20px;
    }
    .whatsapp-float svg {
        width: 22px;
        height: 22px;
    }
}


/* WhatsApp vibration animation */
@keyframes whatsappVibrate {
    0% { transform: scale(1) translate(0, 0) rotate(0); }
    2% { transform: scale(1.1) translate(-2px, 1px) rotate(-2deg); }
    4% { transform: scale(1.1) translate(1px, -1px) rotate(2deg); }
    6% { transform: scale(1.1) translate(-2px, -1px) rotate(-1deg); }
    8% { transform: scale(1.1) translate(1px, 2px) rotate(1deg); }
    10% { transform: scale(1.1) translate(-1px, -1px) rotate(-2deg); }
    12% { transform: scale(1.1) translate(2px, 1px) rotate(2deg); }
    14% { transform: scale(1.1) translate(-1px, 2px) rotate(-1deg); }
    16% { transform: scale(1.1) translate(1px, -2px) rotate(1deg); }
    18% { transform: scale(1.1) translate(-1px, -1px) rotate(-2deg); }
    20% { transform: scale(1) translate(0, 0) rotate(0); }
    100% { transform: scale(1) translate(0, 0) rotate(0); }
}

.whatsapp-vibrate {
    animation: whatsappVibrate 2.5s ease-in-out infinite;
}

/* ==========================================================================
   CV Print & PDF Styles
   ========================================================================== */
#cv-print-template {
    display: none;
}

@media print {
    /* Hide all web components */
    body > *:not(#cv-print-template):not(#project-modal) {
        display: none !important;
    }
    
    html, body {
        background: #ffffff !important;
        color: #0f172a !important;
        font-family: 'Inter', 'Outfit', sans-serif !important;
        width: 100% !important;
        height: auto !important;
        overflow: visible !important;
        margin: 0 !important;
        padding: 0 !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    #cv-print-template {
        display: block !important;
        background: #ffffff !important;
        padding: 30px !important;
        max-width: 900px !important;
        margin: 0 auto !important;
    }

    /* Layout */
    .cv-header {
        border-bottom: 2px solid #e2e8f0 !important;
        padding-bottom: 16px !important;
        margin-bottom: 20px !important;
        display: flex !important;
        justify-content: space-between !important;
        align-items: flex-start !important;
    }

    .cv-title-section {
        flex: 1 !important;
    }

    .cv-name {
        font-family: 'Outfit', sans-serif !important;
        font-size: 2.2rem !important;
        font-weight: 800 !important;
        color: #0f172a !important;
        margin-bottom: 4px !important;
    }

    .cv-subtitle {
        font-size: 1.1rem !important;
        color: #0d9488 !important; /* teal */
        font-weight: 600 !important;
        margin-bottom: 4px !important;
    }

    .cv-contact-info {
        font-size: 0.85rem !important;
        color: #475569 !important;
        text-align: right !important;
        line-height: 1.5 !important;
    }

    .cv-contact-info a {
        color: #475569 !important;
        text-decoration: none !important;
    }

    .cv-section {
        margin-bottom: 24px !important;
        page-break-inside: avoid !important;
    }

    .cv-section-title {
        font-family: 'Outfit', sans-serif !important;
        font-size: 1.2rem !important;
        font-weight: 700 !important;
        color: #0f172a !important;
        border-bottom: 1px solid #e2e8f0 !important;
        padding-bottom: 4px !important;
        margin-bottom: 12px !important;
        text-transform: uppercase !important;
        letter-spacing: 0.5px !important;
    }

    .cv-summary {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
        color: #334155 !important;
    }

    .cv-experience-item {
        margin-bottom: 16px !important;
        page-break-inside: avoid !important;
    }

    .cv-exp-header {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        font-weight: 700 !important;
        font-size: 0.95rem !important;
        color: #0f172a !important;
        margin-bottom: 6px !important;
    }

    .cv-exp-role {
        font-weight: 700 !important;
    }

    .cv-exp-company {
        color: #475569 !important;
        font-weight: 600 !important;
    }

    .cv-exp-date {
        color: #64748b !important;
        font-size: 0.85rem !important;
    }

    .cv-exp-list {
        margin-left: 20px !important;
        font-size: 0.85rem !important;
        color: #334155 !important;
        line-height: 1.5 !important;
        padding-left: 0 !important;
    }

    .cv-exp-list li {
        margin-bottom: 3px !important;
        display: list-item !important;
    }

    .cv-skills-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 16px !important;
    }

    .cv-skill-category-title {
        font-weight: 700 !important;
        font-size: 0.9rem !important;
        color: #0f172a !important;
        margin-bottom: 8px !important;
    }

    .cv-skill-pills {
        display: flex !important;
        flex-wrap: wrap !important;
        gap: 6px !important;
    }

    .cv-skill-pill {
        background: #f1f5f9 !important;
        border: 1px solid #cbd5e1 !important;
        color: #334155 !important;
        padding: 3px 8px !important;
        font-size: 0.75rem !important;
        border-radius: 4px !important;
        font-weight: 500 !important;
        display: inline-block !important;
    }

    .cv-projects-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
    }

    .cv-project-item {
        border: 1px solid #e2e8f0 !important;
        border-radius: 6px !important;
        padding: 10px !important;
        background: #f8fafc !important;
        page-break-inside: avoid !important;
    }

    .cv-project-title {
        font-weight: 700 !important;
        font-size: 0.9rem !important;
        color: #0f172a !important;
        margin-bottom: 4px !important;
    }

    .cv-project-desc {
        font-size: 0.75rem !important;
        color: #475569 !important;
        line-height: 1.4 !important;
        margin-bottom: 4px !important;
    }

    .cv-project-repo {
        font-size: 0.7rem !important;
        color: #0d9488 !important;
        font-weight: 600 !important;
    }

    /* Print language switching override */
    #cv-print-template .lang-es,
    #cv-print-template .lang-en {
        display: none !important;
    }

    body.es-active #cv-print-template .lang-es {
        display: block !important;
    }
    body.es-active #cv-print-template ul.lang-es {
        display: block !important;
    }
    body.es-active #cv-print-template span.lang-es {
        display: inline !important;
    }

    body:not(.es-active) #cv-print-template .lang-en {
        display: block !important;
    }
    body:not(.es-active) #cv-print-template ul.lang-en {
        display: block !important;
    }
    body:not(.es-active) #cv-print-template span.lang-en {
        display: inline !important;
    }
}

/* ==========================================================================
   Scroll Reveal Entrance Animations (3D Perspective Reveal)
   ========================================================================== */
.scroll-reveal {
    opacity: 0;
    transform: perspective(1000px) rotateX(4deg) translateY(20px) scale(0.99);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform, opacity;
    transform-style: preserve-3d;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: perspective(1000px) rotateX(0deg) translateY(0) scale(1);
}

/* 3D Sheen overlay styles for cards */
.project-card, .skills-card, .profile-card {
    position: relative;
    transform-style: preserve-3d;
    will-change: transform;
}

.project-card::before, .skills-card::before, .profile-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--sheen-x, 50%) var(--sheen-y, 50%), rgba(255, 255, 255, 0.07) 0%, transparent 60%);
    pointer-events: none;
    z-index: 5;
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: inherit;
}

.project-card:hover::before, .skills-card:hover::before, .profile-card:hover::before {
    opacity: 1;
}

/* ==========================================================================
   Page Load Animations & Keyframes
   ========================================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.96);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Initial hidden state and animations for Hero elements */
.hero-title, 
.typed-text-container, 
.hero-subtitle, 
.hero-social-links, 
.hero-actions {
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-title {
    animation-delay: 0.15s;
}

.typed-text-container {
    animation-delay: 0.3s;
}

.hero-subtitle {
    animation-delay: 0.45s;
}

.hero-social-links {
    animation-delay: 0.6s;
}

.hero-actions {
    animation-delay: 0.75s;
}

.profile-card-wrapper {
    opacity: 0;
    animation: fadeInScale 1s cubic-bezier(0.16, 1, 0.3, 1) 0.35s forwards;
}

@keyframes spinHUD {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes spinHUDReverse {
    from {
        transform: rotate(360deg);
    }
    to {
        transform: rotate(0deg);
    }
}

@keyframes slideDownHeader {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom mobile adjustments for screens 480px and below */
@media (max-width: 480px) {
    .section {
        padding: 40px 16px;
    }
    .profile-card {
        padding: 20px 16px;
    }
    .education-card {
        padding: 20px 16px;
    }
    .timeline-content-card {
        padding: 20px 16px;
    }
    .skills-card {
        padding: 20px 16px;
    }
    .link-resource-card {
        padding: 20px 16px;
    }
    .contact-form-container {
        padding: 20px 16px;
    }
    .bio-meta-grid {
        grid-template-columns: 1fr;
    }
    .interests-grid {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .typed-text-container {
        font-size: 1.4rem;
        min-height: 68px;
    }
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 24px;
    }
}/* Accessibility: Support prefers-reduced-motion for users who experience motion sickness */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-delay: -1ms !important;
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        background-attachment: scroll !important;
        scroll-behavior: auto !important;
        transition-duration: 0s !important;
        transition-delay: 0s !important;
    }
    .scroll-reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ==========================================================================
   Interactive CV Dropdown Menu
   ========================================================================== */
.dropdown-container {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    margin-top: 12px;
    background-color: rgba(13, 20, 37, 0.95); /* var(--bg-card) with higher opacity */
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-sm);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(18, 214, 64, 0.05);
    z-index: 1000;
    min-width: 280px;
    display: none;
    flex-direction: column;
    overflow: hidden;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 0;
}

.dropdown-container.active .dropdown-menu {
    display: flex;
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* For mobile where left: 50% might overflow, let's keep it centered or align to screen width */
@media (max-width: 768px) {
    .dropdown-menu {
        left: 0;
        right: 0;
        transform: translateY(10px);
        min-width: 100%;
    }
    .dropdown-container.active .dropdown-menu {
        transform: translateY(0);
    }
}

.dropdown-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 20px;
    transition: var(--transition-fast);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    text-align: left;
    cursor: pointer;
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background-color: rgba(18, 214, 64, 0.08);
    border-left: 3px solid var(--primary-green);
    padding-left: 17px; /* compensate border width to avoid text shifting */
}

.dropdown-item-icon {
    font-size: 1.25rem;
    line-height: 1.2;
    margin-top: 2px;
}

.dropdown-item-details {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.dropdown-item-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
    transition: var(--transition-fast);
}

.dropdown-item:hover .dropdown-item-title {
    color: var(--primary-green);
}

.dropdown-item-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Chevron Rotation on Open */
.dropdown-container.active #dropdown-chevron {
    transform: rotate(180deg);
    color: var(--primary-green);
}

/* ==========================================================================
   Certification Details in Modal Custom Styles
   ========================================================================== */
.cert-modal-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-hover);
}

.cert-modal-badge {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cert-modal-meta {
    display: flex;
    flex-direction: column;
}

.cert-modal-title {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 4px;
    background: linear-gradient(135deg, var(--text-main) 30%, var(--primary-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cert-modal-issuer {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 600;
}

.courses-container {
    margin-top: 30px;
}

.courses-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.courses-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

@media (min-width: 640px) {
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.course-item-card {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    display: flex;
    gap: 14px;
    align-items: flex-start;
    transition: var(--transition-fast);
}

.course-item-card:hover {
    border-color: var(--primary-green-glow);
    background: rgba(255, 255, 255, 0.03);
    transform: translateX(4px);
    box-shadow: 0 4px 20px rgba(18, 214, 64, 0.05);
}

.course-number {
    background: rgba(18, 214, 64, 0.1);
    color: var(--primary-green);
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 0.85rem;
    padding: 2px 8px;
    border-radius: 4px;
    min-width: 28px;
    text-align: center;
    margin-top: 2px;
}

.course-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.course-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.4;
}

.course-tag {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==========================================================================
   CV Selector Modal Custom Styles
   ========================================================================== */
.cv-modal-content {
    text-align: center;
    color: var(--text-main);
}

.cv-modal-title {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #ffffff 30%, #12d640 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cv-modal-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

.cv-options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 16px;
}

@media (max-width: 600px) {
    .cv-options-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.cv-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 32px 24px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.cv-card.card-green {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cv-card.card-green:hover {
    border-color: var(--primary-green);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(18, 214, 64, 0.1), 0 0 20px rgba(18, 214, 64, 0.05);
    background: rgba(18, 214, 64, 0.02);
}

.cv-card.card-indigo:hover {
    border-color: #4f46e5;
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(79, 70, 229, 0.15), 0 0 20px rgba(79, 70, 229, 0.05);
    background: rgba(79, 70, 229, 0.02);
}

.cv-card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.cv-card:hover .cv-card-icon {
    transform: scale(1.15);
}

.cv-card-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cv-card-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-main);
    transition: color 0.3s ease;
}

.cv-card.card-green:hover .cv-card-title {
    color: var(--primary-green);
}

.cv-card.card-indigo:hover .cv-card-title {
    color: #818cf8;
}

.cv-card-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
}

.cv-card-action {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-main);
    transition: all 0.3s ease;
    width: 100%;
}

.cv-card.card-green:hover .cv-card-action {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: #04060c;
    box-shadow: 0 0 15px rgba(18, 214, 64, 0.4);
}

.cv-card.card-indigo:hover .cv-card-action {
    background: #4f46e5;
    border-color: #4f46e5;
    color: #ffffff;
    box-shadow: 0 0 15px rgba(79, 70, 229, 0.5);
}