/* =============================================
   VETUO — Style System
   Warm editorial aesthetic with terracotta accent
   ============================================= */

:root {
    --bg: #F5F0EB;
    --bg-alt: #EDE7E0;
    --fg: #1A1814;
    --muted: #8C8478;
    --accent: #BF5B2E;
    --accent-hover: #A44D26;
    --accent-light: rgba(191, 91, 46, 0.08);
    --border: #D9D2CA;

    --font-display: 'Instrument Serif', Georgia, serif;
    --font-body: 'DM Sans', system-ui, sans-serif;

    --space-xs: clamp(0.5rem, 0.75vw, 0.75rem);
    --space-sm: clamp(0.75rem, 1.5vw, 1.25rem);
    --space-md: clamp(1.5rem, 3vw, 2.5rem);
    --space-lg: clamp(2.5rem, 5vw, 4rem);
    --space-xl: clamp(4rem, 8vw, 7rem);
    --space-2xl: clamp(6rem, 12vw, 10rem);

    --container: clamp(20rem, 85vw, 72rem);
    --container-wide: clamp(20rem, 90vw, 82rem);

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --duration: 0.4s;
    --duration-slow: 0.8s;

    --nav-height: 4.5rem;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--fg);
    font-size: clamp(1rem, 1.1vw, 1.125rem);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Subtle noise texture */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 10000;
    opacity: 0.022;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

::selection { background-color: var(--accent); color: var(--bg); }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
strong { font-weight: 600; }
em { font-family: var(--font-display); font-style: italic; }

/* --- Typography --- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 400; line-height: 1.1; }
h1 { font-size: clamp(3.5rem, 8vw, 7.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.25rem, 1.8vw, 1.75rem); }

section { padding: var(--space-xl) 0; }

/* =============================================
   NAVIGATION
   ============================================= */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    background: rgba(245, 240, 235, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--duration) var(--ease-out);
}

.nav--scrolled { border-bottom-color: var(--border); }

.nav__logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: -0.02em;
}

.nav__links { display: flex; align-items: center; gap: clamp(1.5rem, 3vw, 2.5rem); }
.nav__links a {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: color var(--duration) var(--ease-out);
}
.nav__links a:hover { color: var(--accent); }

.nav__cta {
    background: var(--fg);
    color: var(--bg) !important;
    padding: 0.6em 1.4em;
    border-radius: 100px;
    font-size: 0.8125rem !important;
    transition: background var(--duration) var(--ease-out), transform var(--duration) var(--ease-out) !important;
}
.nav__cta:hover {
    background: var(--accent) !important;
    color: var(--bg) !important;
    transform: translateY(-1px);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--fg);
    transition: transform var(--duration) var(--ease-out), opacity var(--duration);
}
.nav__toggle.active span:first-child { transform: rotate(45deg) translate(3px, 3px); }
.nav__toggle.active span:last-child { transform: rotate(-45deg) translate(3px, -3px); }

/* Mobile menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0; bottom: 0;
    background: var(--bg);
    z-index: 99;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration) var(--ease-out);
}
.mobile-menu.open { opacity: 1; pointer-events: auto; }
.mobile-menu a {
    font-family: var(--font-display);
    font-size: 2.5rem;
    transition: color var(--duration) var(--ease-out);
}
.mobile-menu a:hover { color: var(--accent); }

/* =============================================
   HERO
   ============================================= */
.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    position: relative;
    padding: var(--nav-height) clamp(1.5rem, 4vw, 4rem) var(--space-lg);
    overflow: hidden;
}

.hero__content { max-width: var(--container-wide); width: 100%; position: relative; z-index: 2; }

.hero__label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: var(--space-md);
    opacity: 0;
    animation: heroIn 0.8s var(--ease-out) 0.1s forwards;
}

.hero__dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero__title {
    margin-bottom: var(--space-md);
    opacity: 0;
    transform: translateY(30px);
    animation: heroIn 1s var(--ease-out) 0.2s forwards;
}
.hero__title em { color: var(--accent); }

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

.hero__description {
    max-width: 32rem;
    color: var(--muted);
    font-size: clamp(1rem, 1.2vw, 1.25rem);
    line-height: 1.7;
    margin-bottom: var(--space-md);
    opacity: 0;
    transform: translateY(20px);
    animation: heroIn 1s var(--ease-out) 0.5s forwards;
}

.hero__actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    opacity: 0;
    transform: translateY(20px);
    animation: heroIn 1s var(--ease-out) 0.7s forwards;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 0.85em 1.8em;
    border-radius: 100px;
    transition: all var(--duration) var(--ease-out);
    cursor: pointer;
    border: none;
}
.btn--primary { background: var(--fg); color: var(--bg); }
.btn--primary:hover {
    background: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(191, 91, 46, 0.2);
}
.btn--ghost { background: transparent; color: var(--fg); border: 1.5px solid var(--border); }
.btn--ghost:hover { border-color: var(--fg); transform: translateY(-2px); }

/* Hero visual orbs */
.hero__visual {
    position: absolute;
    top: 50%; right: 0;
    transform: translateY(-50%);
    width: 50%; height: 80%;
    pointer-events: none;
    z-index: 1;
}
.hero__orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.35; }
.hero__orb--1 {
    width: 400px; height: 400px;
    background: var(--accent);
    top: 10%; right: 15%;
    animation: orbFloat 8s ease-in-out infinite;
}
.hero__orb--2 {
    width: 300px; height: 300px;
    background: var(--border);
    bottom: 20%; right: 30%;
    animation: orbFloat 10s ease-in-out infinite reverse;
}
@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(30px, -20px); }
    66% { transform: translate(-20px, 15px); }
}

/* Scroll indicator */
.hero__scroll {
    position: absolute;
    bottom: var(--space-md);
    left: clamp(1.5rem, 4vw, 4rem);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}
.hero__line {
    width: 40px; height: 1px;
    background: var(--muted);
    position: relative;
    overflow: hidden;
}
.hero__line::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: var(--accent);
    animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
    0% { left: -100%; }
    50% { left: 0; }
    100% { left: 100%; }
}

/* =============================================
   SECTION DIVIDER
   ============================================= */
.section__divider {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: var(--space-lg);
}
.section__number {
    font-family: var(--font-display);
    font-size: clamp(3rem, 5vw, 5rem);
    color: var(--border);
    line-height: 1;
}
.section__line { flex: 1; height: 1px; background: var(--border); }

/* =============================================
   ABOUT
   ============================================= */
.about { padding-bottom: var(--space-2xl); }

.about__grid {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    display: grid;
    grid-template-columns: 12rem 1fr;
    gap: var(--space-lg);
}
.about__label h2 {
    font-size: clamp(1rem, 1.2vw, 1.25rem);
    font-family: var(--font-body);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
}
.about__content { max-width: 42rem; }
.about__text {
    font-size: clamp(1.125rem, 1.4vw, 1.375rem);
    line-height: 1.7;
    margin-bottom: var(--space-sm);
}
.about__text strong { color: var(--accent); font-weight: 600; }
.about__links { margin-top: var(--space-md); }
.about__links a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--accent);
    transition: gap var(--duration) var(--ease-out);
}
.about__links a:hover { gap: 0.75rem; }
.arrow { transition: transform var(--duration) var(--ease-out); }
.about__links a:hover .arrow { transform: translateX(4px); }

/* =============================================
   EXPERTISE
   ============================================= */
.expertise { padding-bottom: var(--space-2xl); }

.expertise__header {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    margin-bottom: var(--space-lg);
}
.expertise__header h2 { margin-bottom: var(--space-xs); }
.expertise__header p { color: var(--muted); max-width: 30rem; font-size: 1.0625rem; }

.expertise__list {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    display: flex;
    flex-direction: column;
}
.expertise__item {
    padding: var(--space-md) 0;
    border-top: 1px solid var(--border);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    transition: background var(--duration) var(--ease-out);
}
.expertise__item:last-child { border-bottom: 1px solid var(--border); }
.expertise__item:hover { background: var(--accent-light); }

.expertise__item-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
}
.expertise__number {
    font-family: var(--font-display);
    font-size: 0.875rem;
    color: var(--accent);
}
.expertise__item h3 { font-family: var(--font-display); }
.expertise__item > p { color: var(--muted); font-size: 0.9375rem; line-height: 1.7; }

.expertise__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--space-sm);
    grid-column: 1 / -1;
}
.expertise__tags span {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 0.35em 0.9em;
    border-radius: 100px;
    background: var(--accent-light);
    color: var(--accent);
}

/* =============================================
   WORK
   ============================================= */
.work { padding-bottom: var(--space-2xl); }

.work__header {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    margin-bottom: var(--space-lg);
}
.work__header h2 { margin-bottom: var(--space-xs); }
.work__header p { color: var(--muted); max-width: 30rem; font-size: 1.0625rem; }

.work__grid {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}
.work__item {
    cursor: pointer;
    transition: transform var(--duration) var(--ease-out);
}
.work__item:hover { transform: translateY(-4px); }
.work__item--large { grid-column: 1 / -1; }

.work__image {
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: var(--space-sm);
    transition: background-position var(--duration-slow) var(--ease-out);
}
.work__item:hover .work__image { background-size: 110% 110%; }
.work__item--large .work__image { aspect-ratio: 21 / 9; }
.work__image-inner { position: relative; z-index: 2; }
.work__tech {
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.02em;
}
.work__info { padding: var(--space-sm) 0; }
.work__info h3 { font-family: var(--font-display); margin-bottom: 0.5rem; }
.work__info p { color: var(--muted); font-size: 0.9375rem; line-height: 1.6; }

/* =============================================
   CONTACT
   ============================================= */
.contact { padding: var(--space-2xl) 0; }

.contact__content {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.contact__title { font-size: clamp(2.5rem, 6vw, 5rem); margin-bottom: var(--space-md); }
.contact__title em { color: var(--accent); }
.contact__text {
    color: var(--muted);
    max-width: 28rem;
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}
.contact__email {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--accent);
    position: relative;
    padding-bottom: 4px;
}
.contact__email::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--accent);
    transform-origin: right;
    transform: scaleX(0);
    transition: transform var(--duration) var(--ease-out);
}
.contact__email:hover::after { transform-origin: left; transform: scaleX(1); }

.contact__links { display: flex; gap: var(--space-md); margin-top: var(--space-lg); }
.contact__links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--muted);
    transition: color var(--duration) var(--ease-out);
}
.contact__links a:hover { color: var(--accent); }

/* =============================================
   FOOTER
   ============================================= */
.footer {
    border-top: 1px solid var(--border);
    padding: var(--space-md) clamp(1.5rem, 4vw, 4rem);
}
.footer__content {
    max-width: var(--container-wide);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    font-size: 0.8125rem;
    color: var(--muted);
}

/* =============================================
   SCROLL ANIMATIONS
   ============================================= */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible { 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; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
    .nav__links { display: none; }
    .nav__toggle { display: flex; }
    .mobile-menu { display: flex; }

    .about__grid { grid-template-columns: 1fr; gap: var(--space-sm); }
    .expertise__item { grid-template-columns: 1fr; gap: var(--space-xs); }
    .work__grid { grid-template-columns: 1fr; }
    .work__item--large .work__image { aspect-ratio: 16 / 9; }
    .hero__orb--1 { width: 250px; height: 250px; }
    .hero__orb--2 { width: 200px; height: 200px; }
    .hero__scroll { display: none; }
    .hero__actions { flex-direction: column; align-items: flex-start; }
    .btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
    .contact__links { flex-direction: column; gap: var(--space-sm); align-items: center; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .hero__title, .hero__description, .hero__actions { opacity: 1; transform: none; }
    .hero__label { opacity: 1; }
}