/* ============================================
   MALEK ABDELRAHMAN — Portfolio Stylesheet
   Premium Dark Theme with Cyan Accents
   ============================================ */

/* === CSS Custom Properties === */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --bg-card: #16162a;
    --bg-card-hover: #1e1e38;
    --surface: rgba(255, 255, 255, 0.03);
    --surface-hover: rgba(255, 255, 255, 0.06);

    --text-primary: #e8e8f0;
    --text-secondary: #9898b0;
    --text-muted: #686880;

    --accent: #00d4ff;
    --accent-rgb: 0, 212, 255;
    --accent-dark: #0099cc;
    --accent-glow: rgba(0, 212, 255, 0.15);
    --accent-secondary: #7c3aed;
    --accent-secondary-rgb: 124, 58, 237;
    --gradient-primary: linear-gradient(135deg, #00d4ff, #7c3aed);
    --gradient-bg: linear-gradient(180deg, #0a0a0f 0%, #12121a 50%, #0a0a0f 100%);

    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(0, 212, 255, 0.3);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.1);

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    --nav-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    font-size: 16px;
}

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

::selection {
    background: rgba(var(--accent-rgb), 0.3);
    color: var(--text-primary);
}

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

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

ul {
    list-style: none;
}

/* Prevent horizontal overflow everywhere */
.container, .timeline-content, .project-card, .edu-card,
.activity-card-full, .contact-form-wrapper, .terminal-window {
    overflow-wrap: break-word;
    word-wrap: break-word;
}

/* === Cursor Glow === */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    will-change: left, top;
}

/* === Particle Canvas === */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    transition: var(--transition);
    backdrop-filter: blur(0px);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.logo-bracket {
    color: var(--accent);
    font-weight: 400;
}

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

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    position: relative;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
    background: rgba(var(--accent-rgb), 0.08);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: 120px 24px 60px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--accent-secondary-rgb), 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-greeting {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.greeting-line {
    width: 40px;
    height: 2px;
    background: var(--accent);
}

.greeting-text {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 0.05em;
}

.hero-name {
    font-size: clamp(3rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.name-highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title-wrapper {
    margin-bottom: 24px;
}

.typing-container {
    font-family: var(--font-mono);
    font-size: clamp(0.78rem, 2.5vw, 1.1rem);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    min-height: 1.8em;
}

.typing-cursor {
    color: var(--accent);
    animation: blink 1s infinite;
    margin-left: 2px;
    font-weight: 300;
}

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

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.8;
}

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

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(var(--accent-rgb), 0.4);
}

.btn-primary i {
    transition: transform 0.3s;
}

.btn-primary:hover i {
    transform: translateX(4px);
}

.btn-outline {
    border: 1.5px solid var(--border-hover);
    color: var(--accent);
    background: transparent;
}

.btn-outline:hover {
    background: rgba(var(--accent-rgb), 0.08);
    border-color: var(--accent);
    transform: translateY(-2px);
}

/* === Profile Visual === */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-frame {
    position: relative;
    width: 380px;
    height: 380px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.frame-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid transparent;
}

.ring-1 {
    width: 100%;
    height: 100%;
    border-color: rgba(var(--accent-rgb), 0.15);
    animation: rotate-slow 20s linear infinite;
}

.ring-1::before {
    content: '';
    position: absolute;
    top: -3px;
    left: 50%;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent);
}

.ring-2 {
    width: 90%;
    height: 90%;
    border-color: rgba(var(--accent-secondary-rgb), 0.12);
    animation: rotate-slow 15s linear infinite reverse;
}

.ring-2::before {
    content: '';
    position: absolute;
    bottom: -3px;
    right: 20%;
    width: 4px;
    height: 4px;
    background: var(--accent-secondary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-secondary);
}

.ring-3 {
    width: 80%;
    height: 80%;
    border: 1px dashed rgba(var(--accent-rgb), 0.08);
    animation: rotate-slow 25s linear infinite;
}

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

.profile-image-wrapper {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid rgba(var(--accent-rgb), 0.3);
    box-shadow: 0 0 60px rgba(var(--accent-rgb), 0.15), inset 0 0 30px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 2;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.profile-frame:hover .profile-image {
    transform: scale(1.05);
}

.profile-badge {
    position: absolute;
    bottom: 30px;
    right: 20px;
    background: var(--gradient-primary);
    color: #fff;
    padding: 8px 16px;
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: var(--shadow-md);
    z-index: 3;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}


/* === Reveal Animations === */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    animation: revealUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes revealUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* === Sections === */
.section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    display: block;
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-line {
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    margin: 0 auto;
    border-radius: 2px;
}

/* === About Section === */
.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-lead {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 500;
    font-style: italic;
    margin-bottom: 20px;
    padding-left: 16px;
    border-left: 3px solid var(--accent);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.97rem;
}

.about-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 28px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.highlight-item:hover {
    border-color: var(--border-hover);
    background: var(--surface-hover);
}

.highlight-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-rgb), 0.1);
    border-radius: var(--radius-sm);
    color: var(--accent);
    font-size: 0.9rem;
}

.highlight-item span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* === Terminal Window === */
.terminal-window {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.terminal-body {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.8;
}

.terminal-line {
    margin-bottom: 12px;
}

.prompt {
    color: var(--accent);
    margin-right: 8px;
}

.command {
    color: var(--text-primary);
}

.terminal-output pre {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: clamp(0.65rem, 1.8vw, 0.8rem);
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
}

/* === Timeline / Experience === */
.timeline {
    position: relative;
    padding-left: 40px;
}

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

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

.timeline-marker {
    position: absolute;
    left: -40px;
    top: 6px;
}

.marker-dot {
    width: 16px;
    height: 16px;
    background: var(--bg-primary);
    border: 3px solid var(--accent);
    border-radius: 50%;
    position: relative;
    z-index: 2;
}

.marker-pulse {
    position: absolute;
    top: -4px;
    left: -4px;
    width: 24px;
    height: 24px;
    border: 2px solid rgba(var(--accent-rgb), 0.3);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0; }
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.timeline-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.timeline-company {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    background: var(--surface);
    padding: 6px 14px;
    border-radius: var(--radius-xl);
}

.timeline-details {
    margin-bottom: 20px;
}

.timeline-details li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 0.92rem;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.detail-tag {
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
    padding: 2px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    margin-top: 2px;
}

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

.tag {
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    transition: var(--transition);
}

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

/* === Projects Section === */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
}

/* Center the last 2 cards when they don't fill a full row of 3 */
.projects-grid .project-card:nth-last-child(2):nth-child(3n + 1) {
    grid-column: 1 / 2;
    margin-left: auto;
    margin-right: 0;
}

/* For exactly 5 items: center the last row of 2 using justify on the grid */
@supports (grid-template-columns: repeat(3, 1fr)) {
    .projects-grid {
        justify-items: center;
    }
    .projects-grid .project-card {
        width: 100%;
    }
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

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

.project-card.featured {
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.05), rgba(var(--accent-secondary-rgb), 0.05));
    border-color: rgba(var(--accent-rgb), 0.15);
    margin-bottom: 8px;
}

.project-card.featured::before {
    opacity: 1;
    height: 3px;
}

.project-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.05), transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s;
}

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

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.project-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-rgb), 0.1);
    border-radius: var(--radius-md);
    color: var(--accent);
    font-size: 1.2rem;
}

.featured-icon {
    background: var(--gradient-primary);
    color: #fff;
}

.project-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.project-badge {
    padding: 4px 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
    border-radius: var(--radius-xl);
}

.project-badge.grade {
    background: rgba(40, 200, 64, 0.1);
    color: #28c840;
}

.project-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.project-label {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 12px;
}

.project-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.project-tech span {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    padding: 4px 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: var(--transition);
}

.project-tech span:hover {
    color: var(--accent);
    border-color: var(--border-hover);
}

/* === Skills Section === */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.skill-category:hover {
    border-color: var(--border-hover);
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

.skill-category-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-rgb), 0.1);
    border-radius: var(--radius-md);
    color: var(--accent);
    font-size: 1.1rem;
}

.skill-category h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.skill-item {
    width: 100%;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.skill-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.skill-level {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.skill-bar {
    height: 6px;
    background: var(--surface);
    border-radius: 3px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 3px;
    width: 0;
    transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-fill.animated {
    /* Width set by JS */
}

/* === Education Section === */
.edu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.edu-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    display: flex;
    gap: 20px;
    transition: var(--transition);
}

.edu-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.edu-card.cert {
    border-color: rgba(var(--accent-secondary-rgb), 0.15);
}

.edu-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-rgb), 0.1);
    border-radius: var(--radius-md);
    color: var(--accent);
    font-size: 1.2rem;
}

.edu-info h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.edu-institution {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-bottom: 4px;
}

.edu-date {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.edu-detail {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* === Courses === */
.courses-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.courses-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.courses-title i {
    color: var(--accent);
}

.courses-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.course-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.course-chip:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.course-year {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent);
    background: rgba(var(--accent-rgb), 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

/* === Activities Section === */
.activities-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.activity-card-full {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    gap: 24px;
    transition: var(--transition);
}

.activity-card-full:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.activity-card-left {
    flex-shrink: 0;
}

.activity-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-rgb), 0.1);
    border-radius: 50%;
    color: var(--accent);
    font-size: 1.3rem;
}

.activity-card-body {
    flex: 1;
    min-width: 0;
}

.activity-card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.activity-card-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.activity-org {
    font-size: 0.88rem;
    color: var(--accent);
    font-weight: 500;
}

.activity-date {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    white-space: nowrap;
    background: var(--surface);
    padding: 6px 14px;
    border-radius: var(--radius-xl);
}

.activity-details {
    list-style: none;
    padding: 0;
}

.activity-details li {
    position: relative;
    padding: 4px 0 4px 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.activity-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.6;
}

.activity-details strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* === Contact Section === */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-lead {
    font-size: 1.15rem;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 16px;
    line-height: 1.7;
}

.contact-text p {
    color: var(--text-secondary);
    margin-bottom: 28px;
    font-size: 0.95rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-link-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 18px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.contact-link-item:hover {
    border-color: var(--border-hover);
    background: var(--surface-hover);
    transform: translateX(4px);
}

.contact-link-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-rgb), 0.1);
    border-radius: var(--radius-sm);
    color: var(--accent);
}

.contact-link-label {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-link-value {
    display: block;
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 500;
    word-break: break-all;
}

/* === Contact Form === */
.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.form-group {
    position: relative;
    margin-bottom: 28px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    font-size: 0.95rem;
    color: var(--text-primary);
    font-family: var(--font-main);
    outline: none;
    transition: var(--transition);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group label {
    position: absolute;
    top: 12px;
    left: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -12px;
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line {
    width: 100%;
}

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 1rem;
}

/* === Footer === */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-logo {
    font-size: 1.3rem;
    font-weight: 800;
    font-family: var(--font-mono);
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-socials a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-socials a:hover {
    color: var(--accent);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.footer-copy {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* === Mobile Nav Overlay === */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 999;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.nav-overlay.active {
    display: block;
}

/* === Hide desktop-only effects on touch === */
@media (hover: none) and (pointer: coarse) {
    .cursor-glow {
        display: none;
    }

    .project-card:hover,
    .activity-card-full:hover,
    .edu-card:hover {
        transform: none;
    }
}

/* === Tablet: 1024px and below === */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-text {
        order: 2;
    }

    .hero-visual {
        order: 1;
    }

    .hero-greeting {
        justify-content: center;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

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

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .profile-frame {
        width: 280px;
        height: 280px;
    }

    .profile-image-wrapper {
        width: 190px;
        height: 190px;
    }
}

/* === Phone: 768px and below === */
@media (max-width: 768px) {
    :root {
        --nav-height: 60px;
    }

    /* --- Mobile Navigation --- */
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        height: 100dvh;
        background: var(--bg-secondary);
        border-left: 1px solid var(--border);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 4px;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
        overflow-y: auto;
    }

    .nav-links.open {
        right: 0;
    }

    .nav-link {
        padding: 14px 16px;
        font-size: 1rem;
    }

    .nav-toggle {
        display: flex;
    }

    /* --- Sections --- */
    .section {
        padding: 64px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    /* --- Hero --- */
    .hero {
        padding: 90px 16px 50px;
        min-height: calc(100vh - 60px);
        min-height: calc(100dvh - 60px);
    }

    .hero-content {
        gap: 32px;
    }

    .hero-name {
        font-size: clamp(2rem, 8vw, 2.8rem);
    }

    .hero-description {
        font-size: 0.92rem;
        margin-bottom: 28px;
    }

    .profile-frame {
        width: 220px;
        height: 220px;
    }

    .profile-image-wrapper {
        width: 150px;
        height: 150px;
    }

    .profile-badge {
        bottom: 15px;
        right: 10px;
        padding: 6px 12px;
        font-size: 0.7rem;
    }

    /* --- About --- */
    .about-lead {
        font-size: 1.05rem;
    }

    .terminal-body {
        padding: 14px;
        font-size: 0.75rem;
    }

    /* --- Experience / Timeline --- */
    .timeline {
        padding-left: 28px;
    }

    .timeline-marker {
        left: -28px;
    }

    .timeline::before {
        left: 5px;
    }

    .marker-dot {
        width: 12px;
        height: 12px;
    }

    .marker-pulse {
        width: 20px;
        height: 20px;
        top: -4px;
        left: -4px;
    }

    .timeline-content {
        padding: 20px;
    }

    .timeline-header {
        flex-direction: column;
        gap: 10px;
    }

    .timeline-title {
        font-size: 1.1rem;
    }

    .timeline-date {
        font-size: 0.72rem;
        align-self: flex-start;
    }

    .timeline-details li {
        font-size: 0.85rem;
        gap: 8px;
        flex-wrap: wrap;
    }

    .detail-tag {
        font-size: 0.7rem;
    }

    .timeline-tags {
        gap: 6px;
    }

    .tag {
        font-size: 0.7rem;
        padding: 3px 10px;
    }

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

    .project-card {
        padding: 22px;
    }

    .project-title {
        font-size: 1.05rem;
    }

    .project-description {
        font-size: 0.85rem;
    }

    .project-card.featured {
        margin-bottom: 4px;
    }

    /* --- Skills --- */
    .skill-category {
        padding: 22px;
    }

    .skill-category-header {
        margin-bottom: 20px;
    }

    .skill-category-icon {
        width: 38px;
        height: 38px;
        font-size: 1rem;
    }

    /* --- Education --- */
    .edu-card {
        padding: 20px;
        gap: 14px;
    }

    .edu-icon {
        width: 42px;
        height: 42px;
        min-width: 42px;
        font-size: 1rem;
    }

    .edu-info h3 {
        font-size: 0.92rem;
    }

    .courses-section {
        padding: 22px;
    }

    .course-chip {
        padding: 8px 14px;
        font-size: 0.8rem;
        gap: 8px;
    }

    /* --- Activities --- */
    .activity-card-full {
        padding: 22px;
        flex-direction: column;
        gap: 16px;
    }

    .activity-icon {
        width: 48px;
        height: 48px;
        font-size: 1.1rem;
    }

    .activity-card-top {
        flex-direction: column;
        gap: 8px;
    }

    .activity-card-body h3 {
        font-size: 0.95rem;
    }

    .activity-details li {
        font-size: 0.85rem;
        padding-left: 16px;
    }

    .activity-details li::before {
        width: 5px;
        height: 5px;
        top: 11px;
    }

    /* --- Contact --- */
    .contact-lead {
        font-size: 1rem;
    }

    .contact-link-item {
        padding: 12px 14px;
        gap: 12px;
    }

    .contact-link-icon {
        width: 36px;
        height: 36px;
        min-width: 36px;
    }

    .contact-link-value {
        font-size: 0.82rem;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .form-group input,
    .form-group textarea {
        font-size: 16px; /* Prevents iOS zoom on focus */
    }

    /* --- Footer --- */
    .footer {
        padding: 32px 0;
    }
}

/* === Small Phone: 480px and below === */
@media (max-width: 480px) {
    .container {
        padding: 0 14px;
    }

    .hero {
        padding: 80px 14px 40px;
    }

    .hero-name {
        font-size: clamp(1.8rem, 9vw, 2.4rem);
    }

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

    .btn {
        width: 100%;
        justify-content: center;
        padding: 14px 20px;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .profile-frame {
        width: 190px;
        height: 190px;
    }

    .profile-image-wrapper {
        width: 130px;
        height: 130px;
    }

    .edu-card {
        flex-direction: column;
        text-align: center;
    }

    .edu-icon {
        margin: 0 auto;
    }

    .timeline-content {
        padding: 18px;
    }

    .timeline-details li {
        flex-direction: column;
        gap: 4px;
    }

    .contact-form-wrapper {
        padding: 20px;
    }
}