/* ================================================
   VARIABLES & RESET
   ================================================ */
:root {
    --bg: #0a0a0f;
    --bg-secondary: #111118;
    --surface: #1a1a24;
    --border: rgba(255, 255, 255, 0.08);
    --text: #f0f0f5;
    --text-muted: rgba(240, 240, 245, 0.5);
    --text-dim: rgba(240, 240, 245, 0.3);
    --accent: #6366f1;
    --accent-soft: rgba(99, 102, 241, 0.15);
    --accent-glow: rgba(99, 102, 241, 0.4);
    --font-sans: 'Space Grotesk', 'Inter', sans-serif;
    --font-serif: 'Instrument Serif', serif;
    --radius: 16px;
    --radius-sm: 8px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    cursor: none;
}

a { color: inherit; text-decoration: none; cursor: none; }
button { cursor: none; }

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

/* ================================================
   CUSTOM CURSOR
   ================================================ */
.cursor {
    width: 40px;
    height: 40px;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: width 0.3s var(--ease), height 0.3s var(--ease),
                border-color 0.3s var(--ease), transform 0.1s ease-out;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
}

.cursor.hover {
    width: 60px;
    height: 60px;
    border-color: var(--accent);
    background: var(--accent-soft);
}

.cursor-dot {
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
    transition: transform 0.05s;
}

/* ================================================
   LOADER
   ================================================ */
.loader {
    position: fixed;
    inset: 0;
    background: var(--bg);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-text {
    display: flex;
    gap: 0.25rem;
}

.loader-letter {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    opacity: 0;
    transform: translateY(20px);
    animation: loaderLetter 0.5s var(--ease) forwards;
}

.loader-letter:nth-child(1) { animation-delay: 0.1s; }
.loader-letter:nth-child(2) { animation-delay: 0.2s; }
.loader-letter:nth-child(3) { animation-delay: 0.3s; }

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

.loader-bar {
    width: 120px;
    height: 2px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.loader-fill {
    width: 0%;
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    animation: loaderFill 1.2s 0.5s var(--ease) forwards;
}

@keyframes loaderFill {
    to { width: 100%; }
}

/* ================================================
   NAVIGATION
   ================================================ */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.25rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    background: rgba(10, 10, 15, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    opacity: 0;
    transform: translateY(-100%);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.nav.visible {
    opacity: 1;
    transform: translateY(0);
}

.nav-brand {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.brand-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-item {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    position: relative;
    overflow: hidden;
    padding: 0.25rem 0;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 1.5px;
    background: var(--accent);
    transition: width 0.4s var(--ease);
}

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

/* ================================================
   HERO
   ================================================ */
.hero {
    min-height: 100vh;
    padding: 8rem 2.5rem 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

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

.hero-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    opacity: 0.35;
}

.hero-glow-1 {
    top: 10%;
    right: 10%;
    background: var(--accent);
    animation: float1 8s ease-in-out infinite;
}

.hero-glow-2 {
    bottom: 20%;
    left: 5%;
    background: #ec4899;
    animation: float2 10s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-40px, 30px) scale(1.1); }
}

@keyframes float2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -40px) scale(0.9); }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-tag {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.tag-pill {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    background: var(--accent-soft);
    color: var(--accent);
    border: 1px solid rgba(99, 102, 241, 0.25);
}

.tag-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.hero-title {
    display: flex;
    flex-direction: column;
    margin-bottom: 2rem;
}

.title-line {
    overflow: hidden;
    display: flex;
    gap: 0.4em;
    flex-wrap: wrap;
}

.title-word {
    font-family: var(--font-sans);
    font-size: clamp(3.5rem, 9vw, 8rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.03em;
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    animation: wordReveal 0.8s var(--ease) forwards;
}

.title-word[data-delay="0"] { animation-delay: 1.8s; }
.title-word[data-delay="1"] { animation-delay: 1.9s; }
.title-word[data-delay="2"] { animation-delay: 2.0s; }
.title-word[data-delay="3"] { animation-delay: 2.1s; }

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

.title-accent {
    background: linear-gradient(135deg, var(--accent), #a855f7, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--text-muted);
    max-width: 550px;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.hero-cta-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 1.8rem;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 100px;
    border: none;
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

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

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 1.8rem;
    background: transparent;
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 100px;
    border: 1px solid var(--border);
    transition: transform 0.3s var(--ease), border-color 0.3s, background 0.3s;
}

.btn-ghost:hover {
    transform: translateY(-2px);
    border-color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
}

.btn-large {
    padding: 1.1rem 2.2rem;
    font-size: 1rem;
}

/* Marquee */
.hero-marquee {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    border-top: 1px solid var(--border);
    padding: 1rem 0;
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marquee 25s linear infinite;
}

.marquee-track span {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--text-dim);
    white-space: nowrap;
    padding-right: 0;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ================================================
   SECTIONS (generic)
   ================================================ */
.section {
    padding: 8rem 2.5rem;
    position: relative;
}

.section-header {
    margin-bottom: 4rem;
}

.section-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 1rem;
    padding: 0.35rem 0.75rem;
    background: var(--accent-soft);
    border-radius: 4px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* ================================================
   WORK GRID
   ================================================ */
.work-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.work-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s;
    /* Scroll reveal initial state */
    opacity: 0;
    transform: translateY(40px);
}

.work-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

.work-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.12);
}

.card-image-wrap {
    position: relative;
    overflow: hidden;
}

.card-image {
    width: 100%;
    aspect-ratio: 16 / 10;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 1.5rem;
    transition: transform 0.6s var(--ease);
}

.work-card:hover .card-image {
    transform: scale(1.05);
}

.card-number {
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.15);
    line-height: 1;
}

.card-hover-layer {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s var(--ease);
}

.work-card:hover .card-hover-layer {
    opacity: 1;
}

.card-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cta-text {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.cta-arrow {
    font-size: 1.2rem;
    transition: transform 0.3s var(--ease);
}

.work-card:hover .cta-arrow {
    transform: translateX(4px);
}

.card-info {
    padding: 1.5rem;
}

.card-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.card-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.card-tag {
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    padding: 0.3rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-muted);
}

/* ================================================
   ABOUT
   ================================================ */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 5rem;
}

.about-keywords {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.keyword {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-style: italic;
    font-weight: 400;
    line-height: 1.1;
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.keyword.revealed {
    opacity: 1;
    transform: translateX(0);
}

.keyword[data-index="1"] { transition-delay: 0s; }
.keyword[data-index="2"] { transition-delay: 0.15s; color: var(--accent); }
.keyword[data-index="3"] { transition-delay: 0.3s; }

.about-text {
    font-size: 1.1rem;
    font-weight: 400;
    line-height: 1.75;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 5rem;
}

.stat-card {
    padding: 2rem;
    border-radius: var(--radius);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.stat-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

.glass {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
}

.stat-value {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    display: inline;
}

.stat-plus {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    display: inline;
}

.stat-desc {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.04em;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 3rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-bottom: 2.5rem;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.timeline-item.revealed {
    opacity: 1;
    transform: translateX(0);
}

.timeline-dot {
    position: absolute;
    left: -2.85rem;
    top: 0.4rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--accent);
    z-index: 2;
    transition: background 0.3s, box-shadow 0.3s;
}

.timeline-item:hover .timeline-dot {
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-date {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent);
    display: block;
    margin-bottom: 0.35rem;
}

.timeline-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

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

/* ================================================
   CONTACT / FOOTER
   ================================================ */
.contact-section {
    text-align: center;
    padding: 10rem 2.5rem 3rem;
    position: relative;
    overflow: hidden;
}

.contact-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.08;
    filter: blur(150px);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.contact-title {
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.contact-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 6rem;
}

.footer-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 0.04em;
}

/* ================================================
   REVEAL ANIMATIONS (applied via JS)
   ================================================ */
.reveal-text {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 900px) {
    body { cursor: auto; }
    .cursor, .cursor-dot { display: none; }

    .nav { padding: 1rem 1.25rem; }
    .nav-links { gap: 1.25rem; }

    .hero { padding: 6rem 1.25rem 0; }

    .section { padding: 5rem 1.25rem; }

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

    .about-layout { grid-template-columns: 1fr; gap: 2rem; }

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

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

    .footer-bar { flex-direction: column; gap: 0.5rem; text-align: center; }
}

/* ================================================
   PROJECT PAGES (shared)
   ================================================ */
.project-page { cursor: auto; }
.project-page .cursor,
.project-page .cursor-dot { display: none; }

.project-page .top-nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.25rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    background: rgba(10, 10, 15, 0.6);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.project-page .top-nav a {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    transition: color 0.3s;
}

.project-page .top-nav a:hover { color: var(--accent); }

.project-page .nav-right { display: flex; gap: 2rem; }

.project-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 8rem 2.5rem 4rem;
}

.project-header-full {
    margin-bottom: 3rem;
}

.project-header-full h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.metadata {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent);
}

.project-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.text-block h3 {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.text-block p {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
    line-height: 1.7;
}

.process-block {
    margin-bottom: 3rem;
}

.process-block h3 {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    margin-bottom: 1.5rem;
}

.process-block ol {
    list-style: none;
    counter-reset: steps;
}

.process-block li {
    counter-increment: steps;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-muted);
}

.process-block li::before {
    content: '(' counter(steps, decimal-leading-zero) ')';
    font-weight: 600;
    font-size: 0.8rem;
    margin-right: 1rem;
    color: var(--accent);
}

.process-block li strong { font-weight: 600; color: var(--text); }

.impact-block {
    padding: 2rem;
    margin-bottom: 3rem;
    border-left: 2px solid var(--accent);
    background: var(--accent-soft);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.impact-block h3 {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.impact-block p {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--text);
    line-height: 1.5;
}

.impact-block strong { font-weight: 700; }

.gallery-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
}

.next-project {
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.next-project a {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--accent);
    transition: opacity 0.3s;
}

.next-project a:hover { opacity: 0.7; }

@media (max-width: 900px) {
    .project-content { padding: 6rem 1.25rem 3rem; }
    .project-grid { grid-template-columns: 1fr; }
}