/* ========== CSS VARIABLES ========== */
:root {
    --bg-primary: #06080d;
    --bg-secondary: #0c1019;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --accent-cyan: #00d4ff;
    --accent-cyan-dim: rgba(0, 212, 255, 0.15);
    --accent-cyan-glow: rgba(0, 212, 255, 0.4);
    --accent-gold: #f0c040;
    --accent-purple: #a855f7;
    --text-primary: #e8edf5;
    --text-secondary: #8892a4;
    --text-muted: #5a6477;
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-glow: rgba(0, 212, 255, 0.2);
    --font-display: 'Outfit', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --transition-smooth: cubic-bezier(0.23, 1, 0.32, 1);
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-cyan) var(--bg-secondary);
}

html::-webkit-scrollbar { width: 6px; }
html::-webkit-scrollbar-track { background: var(--bg-secondary); }
html::-webkit-scrollbar-thumb { background: var(--accent-cyan); border-radius: 3px; }

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

::selection {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: all 0.3s var(--transition-smooth);
}

a:hover { color: #fff; }

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

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

/* ========== CURSOR FOLLOWER ========== */
.cursor-follower {
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent-cyan);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.15s var(--transition-smooth), opacity 0.3s;
    transform: translate(-50%, -50%);
    opacity: 0;
}

.cursor-follower.active {
    opacity: 1;
}

.cursor-follower.hovering {
    transform: translate(-50%, -50%) scale(2.5);
    border-color: var(--accent-gold);
    background: rgba(240, 192, 64, 0.08);
}

/* ========== PARTICLE CANVAS ========== */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ========== NAVIGATION ========== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s var(--transition-smooth);
    backdrop-filter: blur(0px);
}

.nav.scrolled {
    padding: 12px 0;
    background: rgba(6, 8, 13, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

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

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

.nav-logo span {
    color: var(--accent-cyan);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-cyan);
    transition: width 0.3s var(--transition-smooth);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
    padding: 10px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.nav-toggle span {
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s var(--transition-smooth);
    border-radius: 2px;
}

.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;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 30%, transparent 70%);
}

.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    pointer-events: none;
}

.hero-glow-1 {
    top: -200px;
    right: -100px;
    background: var(--accent-cyan);
}

.hero-glow-2 {
    bottom: -200px;
    left: -200px;
    background: var(--accent-purple);
    opacity: 0.1;
}

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

.hero-text {
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 1s var(--transition-smooth) 0.3s forwards;
}

.hero-greeting {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--accent-cyan);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.hero-greeting::before {
    content: '';
    width: 40px;
    height: 2px;
    background: var(--accent-cyan);
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.3;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #ffffff 0%, #c0d0e0 50%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 24px;
    min-height: 2.2em;
}

.typed-cursor {
    display: inline-block;
    width: 3px;
    height: 1.1em;
    background: var(--accent-cyan);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 1s step-end infinite;
}

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

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 520px;
}

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

.btn {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 14px 32px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.4s var(--transition-smooth);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: #33ddff;
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--accent-cyan);
    border: 2px solid var(--accent-cyan);
}

.btn-outline:hover {
    background: var(--accent-cyan-dim);
    color: var(--accent-cyan);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.15);
}

.hero-photo-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transform: translateY(40px) scale(0.95);
    animation: fadeInUp 1s var(--transition-smooth) 0.6s forwards;
}

.hero-photo-container {
    position: relative;
    width: 380px;
    height: 380px;
}

.hero-photo-ring {
    position: absolute;
    top: -12px;
    left: -12px;
    right: -12px;
    bottom: -12px;
    border-radius: 50%;
    border: 2px solid transparent;
    background: conic-gradient(from 0deg, var(--accent-cyan), var(--accent-purple), var(--accent-gold), var(--accent-cyan)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: rotateRing 6s linear infinite;
}

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

.hero-photo-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-cyan-glow), transparent 70%);
    animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
}

.hero-photo {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 30%;
    position: relative;
    z-index: 1;
    border: 4px solid var(--bg-primary);
}

.hero-photo-dots {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    background-image: radial-gradient(var(--accent-cyan) 1.5px, transparent 1.5px);
    background-size: 12px 12px;
    opacity: 0.3;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--border-subtle);
    opacity: 0;
    animation: fadeInUp 1s var(--transition-smooth) 1s forwards;
}

.hero-stat {
    text-align: center;
}

.hero-stat-number {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent-cyan);
    line-height: 1;
}

.hero-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 6px;
}

/* ========== SECTION COMMON ========== */
.section {
    padding: 120px 0;
    position: relative;
}

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

.section-label {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-cyan);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-label::before {
    content: '';
    width: 30px;
    height: 2px;
    background: var(--accent-cyan);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.section-title span {
    color: var(--accent-cyan);
}

.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s var(--transition-smooth);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ========== ABOUT SECTION ========== */
.about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.about-text p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

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

.about-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 32px;
}

.about-info-item {
    padding: 20px;
    background: rgba(0, 212, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    transition: all 0.4s var(--transition-smooth);
}

.about-info-item:hover {
    border-color: var(--border-glow);
    background: rgba(0, 212, 255, 0.06);
    transform: translateY(-2px);
}

.about-info-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.about-info-value {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.about-counters {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.counter-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    text-align: center;
    transition: all 0.4s var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.counter-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    transform: scaleX(0);
    transition: transform 0.6s var(--transition-smooth);
}

.counter-card:hover::before {
    transform: scaleX(1);
}

.counter-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.counter-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    color: var(--accent-cyan);
    line-height: 1;
    margin-bottom: 8px;
}

.counter-suffix {
    font-size: 1.5rem;
    color: var(--accent-gold);
}

.counter-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ========== SKILLS SECTION ========== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.skill-category {
    padding: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    transition: all 0.4s var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.skill-category::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.03), transparent 60%);
    pointer-events: none;
}

.skill-category:hover {
    border-color: var(--border-glow);
    transform: translateY(-6px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.4);
}

.skill-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--accent-cyan-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
}

.skill-category h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

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

.skill-tag {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 6px 14px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.12);
    border-radius: 20px;
    color: var(--accent-cyan);
    transition: all 0.3s var(--transition-smooth);
}

.skill-tag:hover {
    background: rgba(0, 212, 255, 0.15);
    border-color: var(--accent-cyan);
    transform: scale(1.05);
}

/* ========== EXPERIENCE SECTION ========== */
.experience {
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    padding-left: 40px;
}

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

.timeline-item {
    position: relative;
    padding-bottom: 60px;
}

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

.timeline-dot {
    position: absolute;
    left: -47px;
    top: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 3px solid var(--accent-cyan);
    z-index: 1;
    transition: all 0.3s var(--transition-smooth);
}

.timeline-item:hover .timeline-dot {
    background: var(--accent-cyan);
    box-shadow: 0 0 20px var(--accent-cyan-glow);
}

.timeline-date {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-cyan);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.timeline-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    transition: all 0.4s var(--transition-smooth);
}

.timeline-card:hover {
    border-color: var(--border-glow);
    transform: translateX(8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.timeline-company {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-gold);
    margin-bottom: 4px;
}

.timeline-role {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.timeline-location {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.timeline-desc {
    list-style: none;
    padding: 0;
}

.timeline-desc li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
    line-height: 1.6;
}

.timeline-desc li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-cyan);
}

.timeline-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 16px;
}

.timeline-tech span {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 12px;
    background: rgba(0, 212, 255, 0.08);
    border-radius: 4px;
    color: var(--accent-cyan);
}

/* ========== PROJECTS SECTION ========== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.project-card {
    padding: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    transition: all 0.5s var(--transition-smooth);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s var(--transition-smooth);
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.project-icon {
    font-size: 2rem;
    margin-bottom: 20px;
}

.project-name {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.project-name a {
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.project-name a:hover {
    color: var(--accent-cyan);
}

.project-name svg {
    width: 18px;
    height: 18px;
    opacity: 0;
    transform: translateX(-5px);
    transition: all 0.3s var(--transition-smooth);
}

.project-card:hover .project-name svg {
    opacity: 1;
    transform: translateX(0);
}

.project-org {
    font-size: 0.85rem;
    color: var(--accent-gold);
    margin-bottom: 12px;
}

.project-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    flex-grow: 1;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 20px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--accent-cyan);
}

.project-link:hover {
    gap: 10px;
}

/* ========== EDUCATION SECTION ========== */
.education {
    background: var(--bg-secondary);
}

.edu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.edu-card {
    padding: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    transition: all 0.4s var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.edu-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-purple));
    transform: scaleY(0);
    transition: transform 0.5s var(--transition-smooth);
}

.edu-card:hover::after {
    transform: scaleY(1);
}

.edu-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.edu-degree {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.edu-school {
    font-size: 1rem;
    color: var(--accent-cyan);
    margin-bottom: 4px;
}

.edu-location {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.edu-year {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-gold);
    letter-spacing: 0.06em;
}

.edu-badge {
    display: inline-block;
    margin-top: 12px;
    padding: 4px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(0, 212, 255, 0.1);
    color: var(--accent-cyan);
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

/* ========== ACHIEVEMENTS SECTION ========== */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.achievement-card {
    padding: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    text-align: center;
    transition: all 0.4s var(--transition-smooth);
}

.achievement-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-6px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.4);
}

.achievement-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.achievement-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.achievement-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========== CONTACT SECTION ========== */
.contact {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.contact-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.08;
    pointer-events: none;
}

.contact-glow-1 {
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-cyan);
}

.contact-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.contact-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.contact-title span {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 48px;
    line-height: 1.8;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    color: var(--text-primary);
    transition: all 0.4s var(--transition-smooth);
}

.contact-link:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    color: var(--accent-cyan);
}

.contact-link-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-cyan);
}

.contact-link-text {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.9rem;
}

.contact-socials {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    transition: all 0.4s var(--transition-smooth);
}

.social-link:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.15);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* ========== FOOTER ========== */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
}

.footer-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-text span {
    color: var(--accent-cyan);
}

.footer-heart {
    display: inline-block;
    color: #ef4444;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    14% { transform: scale(1.15); }
    28% { transform: scale(1); }
    42% { transform: scale(1.15); }
    70% { transform: scale(1); }
}

/* ========== BACK TO TOP ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--accent-cyan);
    color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 100;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s var(--transition-smooth);
    border: none;
}

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

.back-to-top:hover {
    background: #33ddff;
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.3);
}

/* ========== KEYFRAMES ========== */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

/* ========== RESPONSIVE - LAPTOP (1024-1280) ========== */
@media (max-width: 1280px) {
    .container {
        max-width: 960px;
    }

    .hero-content {
        gap: 50px;
    }

    .hero-photo-container {
        width: 340px;
        height: 340px;
    }

    .skills-grid {
        gap: 20px;
    }

    .skill-category {
        padding: 28px;
    }
}

/* ========== RESPONSIVE - SMALL LAPTOP / TABLET LANDSCAPE (768-1024) ========== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

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

    .hero-desc {
        margin: 0 auto 40px;
    }

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

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

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

    .hero-photo-container {
        width: 280px;
        height: 280px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

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

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

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

    .achievements-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .section {
        padding: 90px 0;
    }

    .section-header {
        margin-bottom: 48px;
    }

    .timeline-card:hover {
        transform: translateX(4px);
    }
}

/* ========== RESPONSIVE - TABLET PORTRAIT (600-768) ========== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        height: 100dvh;
        background: rgba(6, 8, 13, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 32px 32px;
        gap: 8px;
        transition: right 0.4s var(--transition-smooth);
        border-left: 1px solid var(--border-subtle);
        z-index: 1000;
        overflow-y: auto;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 12px 0;
        font-size: 1rem;
    }

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

    .nav-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: 60px;
    }

    .hero-photo-container {
        width: 220px;
        height: 220px;
    }

    .hero-name {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .hero-title {
        font-size: clamp(1rem, 4vw, 1.4rem);
        min-height: 1.8em;
    }

    .hero-desc {
        font-size: 0.95rem;
        margin-bottom: 32px;
    }

    .hero-stats {
        gap: 24px;
        margin-top: 36px;
        padding-top: 24px;
    }

    .hero-stat-number {
        font-size: 1.8rem;
    }

    .hero-photo-dots {
        width: 80px;
        height: 80px;
        bottom: -20px;
        right: -20px;
    }

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

    .skill-category {
        padding: 24px;
    }

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

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

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

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

    .timeline {
        padding-left: 30px;
    }

    .timeline-dot {
        left: -37px;
        width: 14px;
        height: 14px;
    }

    .timeline-card {
        padding: 24px;
    }

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

    .timeline-desc li {
        font-size: 0.9rem;
    }

    .timeline-item {
        padding-bottom: 40px;
    }

    .section {
        padding: 70px 0;
    }

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

    .project-card {
        padding: 28px;
    }

    .project-name {
        font-size: 1.1rem;
    }

    .edu-card {
        padding: 28px;
    }

    .counter-card {
        padding: 24px;
    }

    .counter-number {
        font-size: 2.4rem;
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    .contact-link {
        width: 100%;
        max-width: 320px;
        justify-content: center;
        padding: 16px 24px;
    }

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

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

/* ========== RESPONSIVE - MOBILE (480-600) ========== */
@media (max-width: 600px) {
    .container {
        padding: 0 20px;
    }

    .hero-photo-container {
        width: 200px;
        height: 200px;
    }

    .hero-photo-ring {
        top: -8px;
        left: -8px;
        right: -8px;
        bottom: -8px;
    }

    .hero-photo-glow {
        top: -15px;
        left: -15px;
        right: -15px;
        bottom: -15px;
    }

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

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

    .about-info-item {
        padding: 16px;
    }

    .counter-card {
        padding: 20px;
    }

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

    .counter-label {
        font-size: 0.8rem;
    }

    .achievement-card {
        padding: 28px;
    }

    .timeline {
        padding-left: 24px;
    }

    .timeline-dot {
        left: -31px;
        width: 12px;
        height: 12px;
    }

    .timeline-card {
        padding: 20px;
    }

    .section {
        padding: 60px 0;
    }
}

/* ========== RESPONSIVE - SMALL MOBILE (320-480) ========== */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .nav-inner {
        padding: 0 16px;
    }

    .nav-logo {
        font-size: 1.3rem;
    }

    .hero {
        padding-top: 80px;
        padding-bottom: 40px;
    }

    .hero-greeting {
        font-size: 0.9rem;
    }

    .hero-greeting::before {
        width: 24px;
    }

    .hero-name {
        font-size: 2rem;
        margin-bottom: 8px;
    }

    .hero-title {
        font-size: 1rem;
        margin-bottom: 16px;
        min-height: 1.5em;
    }

    .hero-desc {
        font-size: 0.9rem;
        line-height: 1.7;
        margin-bottom: 24px;
    }

    .hero-photo-container {
        width: 180px;
        height: 180px;
    }

    .hero-photo-dots {
        display: none;
    }

    .hero-stats {
        gap: 12px;
        margin-top: 28px;
        padding-top: 20px;
        flex-wrap: nowrap;
    }

    .hero-stat {
        flex: 1;
        min-width: 0;
    }

    .hero-stat-number {
        font-size: 1.5rem;
    }

    .hero-stat-label {
        font-size: 0.7rem;
        letter-spacing: 0.04em;
    }

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

    .btn {
        width: 100%;
        justify-content: center;
        padding: 12px 24px;
        font-size: 0.85rem;
    }

    .section-label {
        font-size: 0.75rem;
    }

    .section-label::before {
        width: 20px;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .about-text p {
        font-size: 0.95rem;
    }

    .about-counters {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .counter-card {
        padding: 16px;
    }

    .counter-number {
        font-size: 1.8rem;
    }

    .counter-suffix {
        font-size: 1rem;
    }

    .counter-label {
        font-size: 0.75rem;
    }

    .skill-category {
        padding: 20px;
    }

    .skill-category h3 {
        font-size: 1.05rem;
        margin-bottom: 14px;
    }

    .skill-icon {
        width: 40px;
        height: 40px;
        margin-bottom: 14px;
    }

    .skill-tag {
        font-size: 0.75rem;
        padding: 5px 10px;
    }

    .timeline {
        padding-left: 20px;
    }

    .timeline-dot {
        left: -27px;
        width: 10px;
        height: 10px;
        border-width: 2px;
    }

    .timeline-card {
        padding: 18px;
    }

    .timeline-company {
        font-size: 0.8rem;
    }

    .timeline-role {
        font-size: 1rem;
    }

    .timeline-desc li {
        font-size: 0.85rem;
        padding-left: 16px;
    }

    .timeline-desc li::before {
        width: 5px;
        height: 5px;
        top: 12px;
    }

    .timeline-tech span {
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    .timeline-item {
        padding-bottom: 32px;
    }

    .project-card {
        padding: 22px;
    }

    .project-icon {
        font-size: 1.6rem;
        margin-bottom: 14px;
    }

    .project-name {
        font-size: 1rem;
    }

    .project-desc {
        font-size: 0.88rem;
    }

    .edu-card {
        padding: 22px;
    }

    .edu-degree {
        font-size: 1.05rem;
    }

    .achievement-card {
        padding: 24px;
    }

    .achievement-icon {
        font-size: 2rem;
    }

    .achievement-title {
        font-size: 1rem;
    }

    .achievement-desc {
        font-size: 0.85rem;
    }

    .contact-title {
        font-size: 1.6rem;
    }

    .contact-subtitle {
        font-size: 0.95rem;
        margin-bottom: 32px;
    }

    .contact-link {
        padding: 14px 20px;
    }

    .contact-link-text {
        font-size: 0.85rem;
    }

    .social-link {
        width: 44px;
        height: 44px;
        border-radius: 10px;
    }

    .footer-text {
        font-size: 0.78rem;
    }

    .section {
        padding: 50px 0;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .back-to-top {
        bottom: 16px;
        right: 16px;
        width: 40px;
        height: 40px;
        border-radius: 10px;
    }
}

/* ========== TOUCH DEVICE OPTIMIZATIONS ========== */
@media (hover: none) and (pointer: coarse) {
    .cursor-follower {
        display: none !important;
    }

    .skill-category:hover,
    .project-card:hover,
    .counter-card:hover,
    .timeline-card:hover,
    .edu-card:hover,
    .achievement-card:hover {
        transform: none;
    }

    .project-card:hover::before,
    .counter-card:hover::before,
    .edu-card:hover::after {
        transform: scaleX(1);
    }
}

/* ========== LANDSCAPE MOBILE ========== */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 80px 0 40px;
    }

    .hero-photo-container {
        width: 160px;
        height: 160px;
    }

    .hero-stats {
        margin-top: 20px;
        padding-top: 16px;
    }
}

/* ========== SMOOTH PAGE LOAD ========== */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-subtle);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

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

.loader-text {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}