/* ===========================
   CSS DESIGN SYSTEM
   Theme: Clean White + Charcoal accent
   =========================== */

:root {
    /* Colors */
    --white: #ffffff;
    --off-white: #fafafa;
    --light-gray: #f3f4f6;
    --border-gray: #e5e7eb;
    --mid-gray: #9ca3af;
    --charcoal: #1f2937;
    --dark: #111827;
    --accent: #2563eb;
    --accent-light: #eff6ff;
    --accent-hover: #1d4ed8;

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1140px;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 2px 6px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.1);

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.3s var(--ease);
}

[data-theme="dark"] {
    /* Colors - Dark Mode (#121212 base) */
    --white: #121212;
    --off-white: #181818;
    --light-gray: #242424;
    --border-gray: #333333;
    --mid-gray: #a1a1aa;
    --charcoal: #f4f4f5;
    --dark: #ffffff;
    --accent: #3b82f6;
    --accent-light: rgba(59, 130, 246, 0.15);
    --accent-hover: #60a5fa;

    /* Adjust shadows for dark background */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.6);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.7);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.8);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.9);
}

/* Base element dark overrides */
[data-theme="dark"] .navbar {
    background: rgba(18, 18, 18, 0.85);
}

[data-theme="dark"] .footer {
    background: #09090b; /* Deep dark for footer contrast */
    color: #e5e7eb;
}

[data-theme="dark"] .footer-socials a {
    color: #e5e7eb;
}

[data-theme="dark"] .project-badge-team {
    background: rgba(124, 58, 237, 0.2);
    color: #a78bfa;
}

[data-theme="dark"] .project-description,
[data-theme="dark"] .exp-content > p {
    color: var(--mid-gray);
}

[data-theme="dark"] .timeline-badge.current {
    background: rgba(22, 163, 74, 0.2);
    color: #4ade80;
}

[data-theme="dark"] .exp-type {
    background: rgba(124, 58, 237, 0.2);
    color: #a78bfa;
}

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

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

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.7;
    color: var(--charcoal);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===========================
   CURSOR GLOW
   =========================== */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37,99,235,0.04) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.4s;
    opacity: 0;
}

.cursor-glow.visible {
    opacity: 1;
}

/* ===========================
   NAVIGATION
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--border-gray);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.5px;
}

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

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--charcoal);
    padding: 8px 16px;
    border-radius: var(--radius-xs);
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.nav-link i {
    font-size: 0.8rem;
    opacity: 0.6;
}

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

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--charcoal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    margin-right: 15px; /* space between it and the hamburger if visible */
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
}

.hamburger {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--charcoal);
    border-radius: 2px;
    position: relative;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 3px;
    background: var(--charcoal);
    border-radius: 2px;
    left: 0;
    transition: var(--transition);
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* ===========================
   SECTION SHARED
   =========================== */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section:nth-child(even) {
    background: var(--off-white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    background: var(--accent-light);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -1px;
    line-height: 1.2;
}

.section-line {
    width: 48px;
    height: 3px;
    background: var(--accent);
    margin: 16px auto 0;
    border-radius: 10px;
}

/* ===========================
   HERO
   =========================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--white);
    padding-top: 72px;
}

.hero-bg-shapes .shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.06; /* Increased for light mode visibility */
    background: var(--accent);
    pointer-events: none;
}

[data-theme="dark"] .hero-bg-shapes .shape {
    opacity: 0.03; /* Lower opacity for dark mode to prevent overwhelming the background */
}

.shape-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -200px;
    animation: float 20s ease-in-out infinite;
}

.shape-2 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -100px;
    animation: float 15s ease-in-out infinite reverse;
}

.shape-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    animation: float 10s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-greeting {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.wave-emoji {
    font-size: 1.8rem;
    display: inline-block;
    animation: wave 2.5s ease-in-out infinite;
    transform-origin: 70% 70%;
}

@keyframes wave {
    0%, 60%, 100% { transform: rotate(0deg); }
    10%, 30% { transform: rotate(14deg); }
    20% { transform: rotate(-8deg); }
    40% { transform: rotate(-4deg); }
    50% { transform: rotate(10deg); }
}

.greeting-text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--mid-gray);
}

.hero-name {
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 16px;
}

.hero-name .name-line {
    display: inline;
    color: var(--dark);
}

.hero-name .accent {
    color: var(--accent);
    margin-left: 10px;
}

.hero-role {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 1.05rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.role-prefix {
    opacity: 0.5;
}

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

@keyframes blink {
    50% { opacity: 0; }
}

.hero-description {
    font-size: 1.05rem;
    color: var(--mid-gray);
    line-height: 1.8;
    max-width: 500px;
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    gap: 14px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-main);
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(37,99,235,0.3);
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 6px 20px rgba(37,99,235,0.4);
    transform: translateY(-2px);
}

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

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

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

.hero-socials {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1.5px solid var(--border-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--charcoal);
    transition: var(--transition);
}

.social-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-light);
    transform: translateY(-3px);
}

/* Hero Image */
.hero-image-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image {
    width: 340px;
    height: 400px;
    border-radius: 30% 30% 40% 40% / 25% 25% 35% 35%;
    overflow: hidden;
    position: relative;
    z-index: 2;
    background: linear-gradient(180deg, var(--accent-light) 0%, transparent 100%);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}

.hero-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(to top, var(--white) 0%, transparent 100%);
    pointer-events: none;
}

.hero-image-ring {
    position: absolute;
    width: 380px;
    height: 440px;
    border-radius: 30% 30% 40% 40% / 25% 25% 35% 35%;
    border: 2px dashed rgba(37, 99, 235, 0.25); /* Subtle blue instead of disappearing gray */
    z-index: 1;
    animation: spin-slow 30s linear infinite;
}

.hero-image-ring.ring-2 {
    width: 420px;
    height: 480px;
    border: 1px dashed rgba(37, 99, 235, 0.25);
    opacity: 0.5;
    animation-direction: reverse;
    animation-duration: 45s;
}

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

.hero-badge {
    position: absolute;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--white);
    border-radius: 100px;
    box-shadow: var(--shadow-md);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--charcoal);
    animation: badge-float 4s ease-in-out infinite;
}

.hero-badge i {
    color: var(--accent);
}

.badge-1 {
    top: 10%;
    right: 0;
    animation-delay: 0s;
}

.badge-2 {
    bottom: 20%;
    left: -10px;
    animation-delay: 1.3s;
}

.badge-3 {
    bottom: 5%;
    right: 10%;
    animation-delay: 2.6s;
}

@keyframes badge-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0.4;
    transition: var(--transition);
}

.scroll-indicator:hover {
    opacity: 0.7;
}

.scroll-indicator span {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--charcoal);
    border-radius: 12px;
    position: relative;
}

.mouse-wheel {
    width: 3px;
    height: 8px;
    background: var(--charcoal);
    border-radius: 3px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-anim 1.5s ease-in-out infinite;
}

@keyframes scroll-anim {
    0% { opacity: 1; top: 6px; }
    100% { opacity: 0; top: 20px; }
}

/* ===========================
   ABOUT
   =========================== */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    font-size: 1.05rem;
    color: #4b5563;
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-text strong {
    color: var(--dark);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 36px;
}

.stat-item {
    text-align: center;
    padding: 20px 12px;
    background: var(--white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-gray);
    transition: var(--transition);
}

.stat-item:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-number::after {
    content: '+';
    font-size: 1.2rem;
    opacity: 0.6;
}

.stat-number.special::after {
    content: '';
}

.stat-label {
    font-size: 0.75rem;
    color: var(--mid-gray);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-info-cards {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.info-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 22px;
    background: var(--white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-gray);
    transition: var(--transition);
}

.info-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateX(6px);
}

.info-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-xs);
    background: var(--accent-light);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.info-content {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--mid-gray);
    font-weight: 600;
}

.info-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
}

/* ===========================
   EDUCATION / TIMELINE
   =========================== */
.timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-gray);
}

.timeline-item {
    position: relative;
    padding-left: 76px;
    margin-bottom: 40px;
}

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

.timeline-marker {
    position: absolute;
    left: 14px;
    top: 24px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--white);
    border: 2px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.timeline-marker i {
    font-size: 0.7rem;
    color: var(--accent);
}

.timeline-card {
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}

.timeline-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.timeline-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    background: var(--accent-light);
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 12px;
}

.timeline-badge.current {
    background: #dcfce7;
    color: #16a34a;
}

.timeline-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}

.timeline-institution {
    font-size: 0.9rem;
    color: var(--mid-gray);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 12px;
}

.timeline-institution i {
    color: var(--accent);
    font-size: 0.8rem;
}

.timeline-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.82rem;
    color: var(--mid-gray);
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.timeline-meta i {
    margin-right: 4px;
}

.timeline-badge-small {
    font-size: 0.7rem;
    background: var(--accent-light);
    color: var(--accent);
    padding: 2px 10px;
    border-radius: 100px;
    font-weight: 600;
}

.timeline-score {
    display: flex;
    align-items: center;
    gap: 14px;
}

.score-bar {
    flex: 1;
    height: 6px;
    background: var(--light-gray);
    border-radius: 10px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    width: 0;
    border-radius: 10px;
    background: var(--score-color, var(--accent));
    transition: width 1.2s var(--ease);
}

.score-text {
    font-size: 0.85rem;
    color: var(--charcoal);
    white-space: nowrap;
}

/* ===========================
   SKILLS
   =========================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.skill-category {
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}

.skill-category:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.category-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-xs);
    background: var(--accent-light);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.category-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--off-white);
    border: 1px solid var(--border-gray);
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--charcoal);
    transition: var(--transition);
}

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

.skill-tag i {
    font-size: 1rem;
    color: var(--accent);
}

/* ===========================
   PROJECTS
   =========================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.project-card {
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), #7c3aed);
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

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

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

.project-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    background: var(--accent-light);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.project-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--charcoal);
    transition: var(--transition);
}

.project-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-light);
}

.project-badge-team {
    font-size: 0.72rem;
    font-weight: 600;
    color: #7c3aed;
    background: #f5f3ff;
    padding: 6px 14px;
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.project-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.project-description {
    font-size: 0.9rem;
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
}

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

.stack-tag {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 12px;
    background: var(--off-white);
    border: 1px solid var(--border-gray);
    border-radius: 100px;
    color: var(--mid-gray);
    transition: var(--transition);
}

.project-card:hover .stack-tag {
    border-color: rgba(37,99,235,0.2);
    color: var(--accent);
    background: var(--accent-light);
}

/* ===========================
   EXPERIENCE
   =========================== */
.experience-card {
    display: flex;
    gap: 28px;
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius);
    padding: 36px;
    max-width: 800px;
    margin: 0 auto;
    transition: var(--transition);
}

.experience-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.exp-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    background: var(--accent-light);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.exp-content {
    flex: 1;
}

.exp-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 10px;
}

.exp-header-row h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
}

.exp-type {
    font-size: 0.75rem;
    font-weight: 600;
    color: #7c3aed;
    background: #f5f3ff;
    padding: 4px 14px;
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.exp-content > p {
    font-size: 0.92rem;
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 20px;
}

.exp-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--charcoal);
    font-weight: 500;
}

.highlight-item i {
    color: #16a34a;
    font-size: 0.75rem;
}

/* ===========================
   LANGUAGES
   =========================== */
.languages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 600px;
    margin: 0 auto;
}

.language-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius);
    transition: var(--transition);
}

.language-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-6px);
}

.lang-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--accent-light);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0 auto 14px;
}

.language-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.lang-level {
    font-size: 0.78rem;
    color: var(--mid-gray);
    font-weight: 500;
}

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

.contact-intro {
    font-size: 1.05rem;
    color: #6b7280;
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.contact-item:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateX(6px);
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-xs);
    background: var(--accent-light);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-item div {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--mid-gray);
    font-weight: 600;
}

.contact-value {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--dark);
}

/* Contact Form */
.contact-form {
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius);
    padding: 36px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: 8px;
}

.form-group label i {
    color: var(--accent);
    margin-right: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1.5px solid var(--border-gray);
    border-radius: var(--radius-xs);
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--charcoal);
    background: var(--off-white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
    background: var(--white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--mid-gray);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    margin-top: 16px;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    border-radius: var(--radius-xs);
    padding: 0;
    opacity: 0;
    transition: all 0.3s ease;
}

.form-status.success {
    padding: 12px;
    color: #16a34a;
    background: #dcfce7;
    border: 1px solid #bbf7d0;
    opacity: 1;
}

.form-status.error {
    padding: 12px;
    color: #dc2626;
    background: #fee2e2;
    border: 1px solid #fecaca;
    opacity: 1;
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    background: var(--dark);
    padding: 48px 0;
    color: var(--white);
}

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

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 700;
}

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

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

.footer-socials a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1.5px solid rgba(255,255,255,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

.footer-socials a:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(37,99,235,0.1);
}

.footer-text {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
}

/* ===========================
   BACK TO TOP
   =========================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--white);
    border: none;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(37,99,235,0.3);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(37,99,235,0.4);
}

/* ===========================
   ANIMATIONS
   =========================== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

[data-animate].in-view {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered children — only direct grid/container children */
.timeline > .timeline-item,
.skills-grid > .skill-category,
.projects-grid > .project-card,
.about-info-cards > .info-card,
.languages-grid > .language-card,
.contact-items > .contact-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

[data-animate].in-view .timeline-item,
[data-animate].in-view .skill-category,
[data-animate].in-view .project-card,
[data-animate].in-view .info-card,
[data-animate].in-view .language-card,
[data-animate].in-view .contact-item {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays — target only specific staggered elements */
.timeline > .timeline-item:nth-child(1),
.skills-grid > .skill-category:nth-child(1),
.projects-grid > .project-card:nth-child(1),
.about-info-cards > .info-card:nth-child(1),
.languages-grid > .language-card:nth-child(1),
.contact-items > .contact-item:nth-child(1) { transition-delay: 0.05s; }

.timeline > .timeline-item:nth-child(2),
.skills-grid > .skill-category:nth-child(2),
.projects-grid > .project-card:nth-child(2),
.about-info-cards > .info-card:nth-child(2),
.languages-grid > .language-card:nth-child(2),
.contact-items > .contact-item:nth-child(2) { transition-delay: 0.1s; }

.timeline > .timeline-item:nth-child(3),
.skills-grid > .skill-category:nth-child(3),
.projects-grid > .project-card:nth-child(3),
.about-info-cards > .info-card:nth-child(3),
.languages-grid > .language-card:nth-child(3),
.contact-items > .contact-item:nth-child(3) { transition-delay: 0.15s; }

.timeline > .timeline-item:nth-child(4),
.skills-grid > .skill-category:nth-child(4),
.projects-grid > .project-card:nth-child(4),
.about-info-cards > .info-card:nth-child(4) { transition-delay: 0.2s; }

.timeline > .timeline-item:nth-child(5),
.skills-grid > .skill-category:nth-child(5),
.projects-grid > .project-card:nth-child(5) { transition-delay: 0.25s; }

.projects-grid > .project-card:nth-child(6) { transition-delay: 0.3s; }

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }

    .hero-content {
        order: 2;
    }

    .hero-image-wrapper {
        order: 1;
    }

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

    .hero-name {
        font-size: 3.5rem;
    }

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

    .hero-description {
        margin: 0 auto 32px;
    }

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

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

    .hero-image {
        width: 260px;
        height: 310px;
    }

    .hero-image-ring {
        width: 300px;
        height: 350px;
    }

    .hero-image-ring.ring-2 {
        width: 340px;
        height: 390px;
    }

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

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

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

@media (max-width: 768px) {
    :root {
        --section-padding: 70px 0;
    }

    .nav-links {
        display: none;
        position: fixed;
        inset: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background: var(--white);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 12px;
        z-index: 999;
        padding: 80px 24px 40px;
        overflow-y: auto;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links li {
        list-style: none;
        width: 100%;
        max-width: 300px;
    }

    .nav-link {
        font-size: 1.15rem;
        padding: 16px 24px;
        width: 100%;
        justify-content: center;
        border-radius: var(--radius-sm);
        background: var(--off-white);
        border: 1px solid var(--border-gray);
    }

    .nav-link:hover,
    .nav-link.active {
        background: var(--accent-light);
        border-color: var(--accent);
    }

    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-name {
        font-size: 2.8rem;
    }

    .hero-badge {
        padding: 6px 12px;
        font-size: 0.7rem;
        gap: 5px;
    }

    .badge-1 {
        top: 5%;
        right: -10px;
    }

    .badge-2 {
        bottom: 18%;
        left: -20px;
    }

    .badge-3 {
        bottom: 2%;
        right: 5%;
    }

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

    .languages-grid {
        grid-template-columns: 1fr;
        max-width: 280px;
    }

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

    .exp-header-row {
        justify-content: center;
    }

    .exp-icon-wrapper {
        align-self: center;
    }

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

    .highlight-item {
        justify-content: center;
    }

    .timeline::before {
        left: 16px;
    }

    .timeline-item {
        padding-left: 54px;
    }

    .timeline-marker {
        left: 2px;
        width: 28px;
        height: 28px;
    }

    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-name {
        font-size: 2.2rem;
    }

    .hero-image {
        width: 200px;
        height: 240px;
    }

    .hero-image-ring {
        width: 240px;
        height: 280px;
    }

    .hero-image-ring.ring-2 {
        width: 275px;
        height: 315px;
    }

    .hero-badge {
        padding: 5px 10px;
        font-size: 0.65rem;
        gap: 4px;
    }

    .hero-badge span {
        display: none;
    }

    .hero-badge i {
        font-size: 0.85rem;
    }

    .badge-1 {
        top: 3%;
        right: -5px;
    }

    .badge-2 {
        bottom: 15%;
        left: -15px;
    }

    .badge-3 {
        bottom: 0%;
        right: 0%;
    }

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

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

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

    .timeline-card {
        padding: 20px;
    }

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