/* ========================================
   Mohammed Ashraf | Portfolio V2
   Enhanced with Advanced Features
   ======================================== */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --text-primary: #e8e8e8;
    --text-secondary: #999999;
    --text-tertiary: #666666;
    --accent: #7c8aff;
    --accent-secondary: #a855f7;
    --accent-dim: rgba(124, 138, 255, 0.1);
    --accent-hover: #9aa3ff;
    --border: #222222;
    --border-light: #2a2a2a;
    --nav-bg: rgba(10, 10, 10, 0.85);
    --card-bg: #0a0a0a;
    --radius: 12px;
    --radius-sm: 6px;
    --transition: 0.3s ease;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* --- Light Theme --- */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f7f7f8;
    --bg-tertiary: #efeff0;
    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --text-tertiary: #888888;
    --accent: #5b6acf;
    --accent-secondary: #9333ea;
    --accent-dim: rgba(91, 106, 207, 0.08);
    --accent-hover: #4a58b8;
    --border: #e5e5e5;
    --border-light: #d5d5d5;
    --nav-bg: rgba(255, 255, 255, 0.85);
    --card-bg: #ffffff;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

::selection {
    background: var(--accent);
    color: #fff;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

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

a:hover {
    color: var(--accent-hover);
}

/* --- Scroll Progress Bar --- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    z-index: 10002;
    width: 0%;
    transition: width 0.1s ease;
}

/* --- Particles Canvas --- */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.6;
}

[data-theme="light"] #particles-canvas {
    opacity: 0.3;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    transition: transform var(--transition);
}

.nav-icon:hover {
    transform: scale(1.1);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent);
}

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

/* --- Nav Actions --- */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-toggle,
.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 10px;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.search-toggle:hover,
.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.icon-sun { display: none; }
.icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-secondary);
    transition: var(--transition);
    border-radius: 2px;
}

/* --- Search Modal --- */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 200;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 120px;
}

.search-modal.active {
    display: flex;
}

.search-modal-content {
    width: 90%;
    max-width: 600px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.search-input {
    width: 100%;
    padding: 20px 24px;
    font-size: 1.1rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-body);
}

.search-input:focus {
    outline: none;
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-results {
    max-height: 300px;
    overflow-y: auto;
    border-top: 1px solid var(--border);
}

.search-result-item {
    padding: 16px 24px;
    cursor: pointer;
    transition: background var(--transition);
    border-bottom: 1px solid var(--border);
}

.search-result-item:hover {
    background: var(--bg-tertiary);
}

.search-result-title {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.search-result-type {
    font-size: 0.75rem;
    color: var(--accent);
    text-transform: uppercase;
}

.search-close {
    padding: 12px 24px;
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-tertiary);
    font-size: 0.8rem;
    width: 100%;
    text-align: center;
    cursor: pointer;
}

/* --- Mobile Menu --- */
.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    padding: 24px;
    z-index: 99;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 16px;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    color: var(--text-secondary);
    font-size: 1rem;
    padding: 8px 0;
}

/* --- Gradient Text --- */
.gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Glow Effects --- */
.glow-btn {
    position: relative;
    overflow: hidden;
}

.glow-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(124, 138, 255, 0.3), transparent 70%);
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
    z-index: 0;
}

.glow-btn:hover::before {
    width: 300px;
    height: 300px;
}

.glow-btn span {
    position: relative;
    z-index: 1;
}

/* --- 3D Tilt Card --- */
.tilt-card {
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.tilt-card:hover {
    transform: perspective(1000px) rotateX(var(--rotateX, 0deg)) rotateY(var(--rotateY, 0deg));
}

/* --- Hero --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 64px;
    position: relative;
}

.hero-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124, 138, 255, 0.15), transparent 70%);
    pointer-events: none;
    z-index: 0;
}

[data-theme="light"] .hero-glow {
    opacity: 0.5;
}

.hero-content {
    max-width: 700px;
    position: relative;
    z-index: 1;
}

.hero-top {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 24px;
}

.hero-text {
    flex: 1;
}

.hero-photo {
    flex-shrink: 0;
    position: relative;
}

.profile-img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--border);
    transition: all var(--transition);
    position: relative;
    z-index: 1;
}

.profile-img:hover {
    border-color: var(--accent);
    transform: scale(1.05);
}

.photo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(124, 138, 255, 0.3), transparent 70%);
    z-index: 0;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

.hero-greeting {
    font-size: 0.95rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 12px;
    letter-spacing: 0.02em;
}

.hero-name {
    font-size: clamp(3rem, 7vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 8px;
}

.hero-title {
    font-size: 1.3rem;
    color: var(--text-secondary);
    font-weight: 400;
    min-height: 1.8rem;
}

.typing-cursor {
    color: var(--accent);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-desc {
    font-size: 1rem;
    color: var(--text-tertiary);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    font-family: var(--font-body);
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    box-shadow: 0 4px 20px rgba(124, 138, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(124, 138, 255, 0.4);
    color: #fff;
}

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

.btn-outline:hover {
    color: var(--text-primary);
    border-color: var(--text-tertiary);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background: #25D366;
    color: #fff;
}

.btn-whatsapp:hover {
    background: #20BD5A;
    transform: translateY(-2px);
    color: #fff;
}

.hero-info {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.info-icon {
    font-size: 1rem;
}

/* --- Stats Section --- */
.stats-section {
    padding: 60px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.stat-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 30px rgba(124, 138, 255, 0.1);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-number::after {
    content: '+';
    font-size: 1.5rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* --- Sections --- */
.section {
    padding: 100px 0;
    position: relative;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
    margin-bottom: 48px;
}

/* --- Skills --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.skill-category {
    padding: 24px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.skill-category:hover {
    border-color: var(--accent);
    box-shadow: 0 0 30px rgba(124, 138, 255, 0.08);
}

.skill-cat-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    padding: 6px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.skill-tag:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}

.language-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.language-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.lang-level {
    color: var(--accent);
    font-weight: 500;
}

/* --- Experience Timeline --- */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent), var(--accent-secondary));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding-bottom: 48px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -32px;
    top: 0;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 3px solid var(--accent);
    box-shadow: 0 0 0 4px var(--bg-primary), 0 0 20px rgba(124, 138, 255, 0.5);
    z-index: 1;
}

.timeline-marker::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
}

.timeline-content {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    margin-left: 8px;
    transition: all var(--transition);
}

.timeline-content:hover {
    border-color: var(--accent);
    box-shadow: 0 0 30px rgba(124, 138, 255, 0.08);
}

.timeline-header {
    margin-bottom: 16px;
}

.timeline-header h3 {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.timeline-company {
    font-size: 0.88rem;
    color: var(--accent);
}

.timeline-date {
    font-size: 0.78rem;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    margin-left: 12px;
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

.timeline-list {
    list-style: none;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.timeline-list li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 8px;
}

.timeline-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* --- Projects --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    position: relative;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(124, 138, 255, 0.05), rgba(168, 85, 247, 0.05));
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
    z-index: 0;
}

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

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(124, 138, 255, 0.15),
        0 0 0 1px rgba(124, 138, 255, 0.1);
}

.project-image {
    position: relative;
    width: 100%;
    height: 180px;
    overflow: hidden;
}

.project-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(to top, var(--card-bg), transparent);
    pointer-events: none;
    z-index: 1;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    filter: brightness(0.9);
}

.project-card:hover .project-image img {
    transform: scale(1.15);
    filter: brightness(1);
}

.project-body {
    padding: 24px;
    position: relative;
    z-index: 2;
}

.project-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    transition: color var(--transition);
}

.project-card:hover .project-title {
    color: var(--accent);
}

.project-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.project-tags span {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    background: var(--bg-tertiary);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.project-card:hover .project-tags span {
    background: var(--bg-secondary);
    border-color: var(--border-light);
}

.project-actions {
    display: flex;
    gap: 12px;
    opacity: 0.8;
    transform: translateY(5px);
    transition: all var(--transition);
}

.project-card:hover .project-actions {
    opacity: 1;
    transform: translateY(0);
}

.btn-project {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    font-family: var(--font-body);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-project::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.btn-project:hover::before {
    left: 100%;
}

.btn-project.github {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-project.github:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(124, 138, 255, 0.2);
}

.btn-project.demo {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    border: none;
}

.btn-project.demo:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(124, 138, 255, 0.3);
}

/* --- GitHub Activity --- */
.github-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 24px;
}

.github-stats {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: all var(--transition);
}

.github-stats:hover {
    border-color: var(--accent);
}

.github-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    color: var(--text-primary);
    font-weight: 500;
}

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

.github-stat {
    text-align: center;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.github-stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 4px;
}

.github-stat-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
}

.github-repos {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: all var(--transition);
}

.github-repos:hover {
    border-color: var(--accent);
}

.github-repos h4 {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.repo-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.repo-item {
    display: block;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.repo-item:hover {
    background: var(--bg-secondary);
    transform: translateX(4px);
}

.repo-name {
    display: block;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 4px;
}

.repo-desc {
    font-size: 0.82rem;
    color: var(--text-tertiary);
}

/* --- Education --- */
.edu-card {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card-bg);
    transition: all var(--transition);
    margin-bottom: 32px;
}

.edu-card:hover {
    border-color: var(--accent);
}

.edu-card h3 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.edu-school {
    font-size: 0.88rem;
    color: var(--accent);
    margin-bottom: 4px;
}

.edu-date {
    font-size: 0.78rem;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    margin-bottom: 12px;
}

.edu-detail {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- Certifications Grid --- */
.cert-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 20px;
}

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

.cert-item {
    padding: 18px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.cert-item:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(124, 138, 255, 0.1);
}

.cert-name {
    display: block;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 4px;
    font-size: 0.9rem;
}

.cert-provider {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* --- Contact --- */
.contact-content {
    text-align: center;
    max-width: 520px;
    margin: 0 auto;
}

.contact-text {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.8;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.contact-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 28px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all var(--transition);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card-bg);
}

.contact-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-buttons {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

/* --- Social Share --- */
.social-share {
    position: fixed;
    right: 24px;
    bottom: 100px;
    z-index: 50;
}

.share-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.share-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: scale(1.1);
}

/* --- Share Modal --- */
.share-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 300;
    display: none;
    align-items: center;
    justify-content: center;
}

.share-modal.active {
    display: flex;
}

.share-modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    position: relative;
}

.share-modal-content h3 {
    font-size: 1.2rem;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.share-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.share-option {
    padding: 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    display: block;
}

.share-option:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.share-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition);
}

.share-close:hover {
    color: var(--text-primary);
}

/* --- Footer --- */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}

.footer p {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* --- AI Chatbot --- */
.chatbot-container {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 100;
}

.chatbot-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(124, 138, 255, 0.3);
    transition: all var(--transition);
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(124, 138, 255, 0.4);
}

.chatbot-window {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 380px;
    max-height: 550px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: none;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.chatbot-window.active {
    display: flex;
}

.chatbot-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    font-weight: 500;
}

.chatbot-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    transition: color var(--transition);
}

.chatbot-close:hover {
    color: #fff;
}

.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 350px;
}

.chatbot-message {
    padding: 12px 16px;
    border-radius: 12px;
    max-width: 85%;
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-line;
}

.chatbot-message.bot {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chatbot-message.user {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.chatbot-suggestions {
    padding: 12px 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    border-top: 1px solid var(--border);
    background: var(--bg-tertiary);
}

.chatbot-suggestion {
    padding: 8px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.chatbot-suggestion:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}

.chatbot-input {
    display: flex;
    gap: 8px;
    padding: 16px;
    border-top: 1px solid var(--border);
}

.chatbot-input input {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 24px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.chatbot-input input:focus {
    outline: none;
    border-color: var(--accent);
}

.chatbot-input input::placeholder {
    color: var(--text-tertiary);
}

.chatbot-input button {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.chatbot-input button:hover {
    transform: scale(1.05);
}

/* --- Typing Animation --- */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    align-self: flex-start;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: typingBounce 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-4px); }
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .github-grid {
        grid-template-columns: 1fr;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .profile-img {
        width: 140px;
        height: 140px;
    }

    .photo-glow {
        width: 180px;
        height: 180px;
    }

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

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-name {
        font-size: 2.4rem;
    }

    .section {
        padding: 72px 0;
    }

    .timeline-date {
        display: block;
        margin-left: 0;
        margin-top: 6px;
    }

    .hero-info {
        flex-direction: column;
        gap: 12px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        justify-content: center;
        width: 100%;
    }

    .contact-links {
        flex-direction: column;
    }

    .contact-link {
        flex-direction: row;
    }

    .chatbot-window {
        width: calc(100vw - 48px);
        right: -12px;
    }

    .social-share {
        right: 16px;
        bottom: 90px;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

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

    .stat-card {
        padding: 20px 16px;
    }

    .stat-number {
        font-size: 2rem;
    }
}