/* ═══════════════════════════════════════════════════════
   DHYTHRA NETWORKS — DESIGN SYSTEM
   Editorial · Organic · Anti-corporate
   Shared across all pages
═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300;1,9..40,400&family=JetBrains+Mono:wght@300;400;500&display=swap');

:root {
    --ink: #0a0a0a;
    --paper: #f5f0e8;
    --cream: #ebe4d6;
    --warm-gray: #9e9688;
    --accent: #c4440a;
    --accent-soft: #e8693a;
    --sage: #4a5a3c;
    --slate: #3d3d3d;
    --whisper: rgba(10, 10, 10, 0.06);
    --serif: 'Playfair Display', 'Georgia', serif;
    --sans: 'DM Sans', 'Helvetica Neue', sans-serif;
    --mono: 'JetBrains Mono', 'Courier New', monospace;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
::selection { background: var(--accent); color: var(--paper); }
html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--sans);
    background: var(--paper);
    color: var(--ink);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* grain overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.025;
    background-image: 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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ─── LOGO MARK ─── */
.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
}

.logo-mark {
    width: 32px;
    height: 32px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-mark svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-family: var(--serif);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: inherit;
}

.logo-text .light {
    font-weight: 300;
    font-style: italic;
    opacity: 0.6;
    margin-left: 0.2em;
}

/* ─── NAV ─── */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 1.2rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.4s ease;
}

nav.nav-dark {
    mix-blend-mode: difference;
}

nav.nav-dark .logo-text,
nav.nav-dark .nav-links a {
    color: #fff;
}

nav.nav-solid {
    background: var(--paper);
    border-bottom: 1px solid var(--whisper);
}

nav.scrolled {
    padding: 0.8rem 3rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-family: var(--mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: opacity 0.3s;
}

.nav-links a:hover { opacity: 0.5; }

.nav-links .nav-cta {
    padding: 0.5rem 1.2rem;
    border: 1px solid currentColor;
    opacity: 0.6;
    transition: all 0.3s;
}

.nav-links .nav-cta:hover {
    opacity: 1;
    background: var(--accent);
    border-color: var(--accent);
    color: var(--paper) !important;
}

/* ─── SHARED SECTION HELPERS ─── */
.section-label {
    font-family: var(--mono);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--warm-gray);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-label::before {
    content: '';
    width: 30px;
    height: 1px;
    background: currentColor;
}

.section-label.light { color: var(--accent-soft); }
.section-label.light::before { background: var(--accent-soft); }

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

/* ─── SHARED HERO BASE ─── */
.hero-base {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 0 3rem 5rem;
    position: relative;
    overflow: hidden;
}

.hero-base.dark { background: var(--ink); color: var(--paper); }
.hero-base.light { background: var(--paper); color: var(--ink); }

.hero-grid-bg {
    position: absolute;
    inset: 0;
    opacity: 0.04;
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 80px, rgba(255,255,255,0.5) 80px, rgba(255,255,255,0.5) 81px),
        repeating-linear-gradient(90deg, transparent, transparent 80px, rgba(255,255,255,0.5) 80px, rgba(255,255,255,0.5) 81px);
}

.hero-content { position: relative; z-index: 2; max-width: 850px; }

.hero-eyebrow {
    font-family: var(--mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--accent-soft);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hero-eyebrow::before {
    content: '';
    width: 40px;
    height: 1px;
    background: var(--accent-soft);
}

.hero-content h1 {
    font-family: var(--serif);
    font-size: clamp(2.8rem, 6.5vw, 6rem);
    font-weight: 400;
    line-height: 1.05;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.hero-content h1 em {
    font-style: italic;
    color: var(--accent-soft);
}

.hero-sub {
    font-size: 1.1rem;
    font-weight: 300;
    opacity: 0.55;
    max-width: 480px;
    line-height: 1.7;
}

.hero-bottom-bar {
    position: absolute;
    bottom: 0; left: 0; width: 100%;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255,255,255,0.06);
}

/* ─── BUTTONS ─── */
.btn {
    font-family: var(--mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    padding: 1rem 2.2rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    transition: all 0.4s ease;
    border: 1px solid;
    background: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--paper);
}

.btn-primary:hover {
    background: var(--accent-soft);
    border-color: var(--accent-soft);
}

.btn-outline-light {
    border-color: rgba(245,240,232,0.2);
    color: var(--paper);
}

.btn-outline-light:hover {
    border-color: var(--accent-soft);
    color: var(--accent-soft);
}

.btn-outline-dark {
    border-color: rgba(10,10,10,0.15);
    color: var(--ink);
}

.btn-outline-dark:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ─── FOOTER ─── */
.site-footer {
    padding: 5rem 3rem 2rem;
    background: var(--ink);
    color: rgba(245,240,232,0.3);
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    font-size: 0.85rem;
    font-weight: 300;
    line-height: 1.7;
    margin-top: 1rem;
    max-width: 280px;
}

.footer-col h4 {
    font-family: var(--mono);
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: rgba(245,240,232,0.5);
    margin-bottom: 1.2rem;
}

.footer-col a {
    display: block;
    font-size: 0.8rem;
    font-weight: 300;
    margin-bottom: 0.6rem;
    transition: color 0.3s;
}

.footer-col a:hover { color: var(--accent-soft); }

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.04);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--mono);
    font-size: 0.55rem;
    letter-spacing: 0.12em;
}

/* ─── ANIMATIONS ─── */
.reveal {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.12s; }
.reveal-d2 { transition-delay: 0.24s; }
.reveal-d3 { transition-delay: 0.36s; }
.reveal-d4 { transition-delay: 0.48s; }

.hero-content > * {
    opacity: 0;
    transform: translateY(25px);
    animation: hero-in 0.9s ease forwards;
}
.hero-content > *:nth-child(1) { animation-delay: 0.3s; }
.hero-content > *:nth-child(2) { animation-delay: 0.5s; }
.hero-content > *:nth-child(3) { animation-delay: 0.7s; }
.hero-content > *:nth-child(4) { animation-delay: 0.9s; }

@keyframes hero-in { to { opacity: 1; transform: translateY(0); } }

@keyframes float-slow {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-18px) rotate(2deg); }
}

@keyframes scroll-pulse {
    0% { left: -100%; }
    50% { left: 0; }
    100% { left: 100%; }
}

/* ─── SCROLL INDICATOR ─── */
.scroll-indicator {
    font-family: var(--mono);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.scroll-line {
    width: 30px;
    height: 1px;
    background: rgba(255,255,255,0.2);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    left: -100%; top: 0;
    width: 100%; height: 100%;
    background: var(--accent-soft);
    animation: scroll-pulse 2s ease-in-out infinite;
}

/* ─── HAMBURGER ─── */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 26px;
    height: 18px;
    position: relative;
    z-index: 200;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 1px;
    background: currentColor;
    position: absolute;
    left: 0;
    transition: all 0.3s ease;
}

.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 50%; }
.hamburger span:nth-child(3) { top: 100%; }

.hamburger.active span:nth-child(1) { top: 50%; transform: rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { top: 50%; transform: rotate(-45deg); }

/* ─── RESPONSIVE ─── */
@media (max-width: 960px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 640px) {
    nav { padding: 1rem 1.5rem; }
    nav.scrolled { padding: 0.7rem 1.5rem; }
    .hamburger { display: block; color: inherit; }
    .nav-links {
        display: none;
        position: fixed;
        inset: 0;
        background: var(--ink);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        z-index: 150;
    }
    .nav-links.open { display: flex; }
    .nav-links.open a { color: #fff !important; font-size: 0.9rem; }
    .hero-base { padding: 0 1.5rem 4rem; }
    .hero-bottom-bar { padding: 1rem 1.5rem; }
    .site-footer { padding: 3rem 1.5rem 1.5rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 0.8rem; align-items: flex-start; }
}