/* ============================================================
   DnG — cinematic brand system
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --bg:        #06140d;   /* deepest green-black */
  --bg-2:      #0a2016;   /* emerald atmosphere  */
  --bg-3:      #0e2d1e;
  --bg-glow:   #123c28;   /* top ambient glow    */
  --ink:       #eef3f0;
  --ink-soft:  #c3d0ca;
  --muted:     #7f918a;
  --line:      rgba(160, 200, 185, 0.12);

  --em:        #10b981;   /* core emerald  */
  --em-bright: #34d399;   /* highlight     */
  --em-deep:   #04724a;   /* shadow        */
  --em-glow:   #6ee7b7;   /* mint glow     */

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-serif:   'Instrument Serif', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  --maxw: 1280px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);

  --nav-h: 78px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background:
    radial-gradient(130% 90% at 50% -15%, var(--bg-glow) 0%, transparent 55%),
    linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 65%);
  background-attachment: fixed;
  color: var(--ink);
  line-height: 1.6;
  font-size: 17px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.no-scroll { overflow: hidden; height: 100vh; }
a { color: inherit; text-decoration: none; }
img, svg, video { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a, button { touch-action: manipulation; }
::selection { background: var(--em); color: #04120c; }

/* keyboard focus — visible, on-brand */
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--em-bright); outline-offset: 3px; border-radius: 4px; }
.btn:focus-visible { outline-offset: 4px; }

/* skip link for keyboard users */
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 200;
  background: var(--em); color: #04120c; font-family: var(--font-display); font-weight: 600;
  padding: 12px 20px; border-radius: 10px; transform: translateY(-200%);
  transition: transform .3s var(--ease);
}
.skip-link:focus { transform: none; }

/* scroll progress */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 100%; z-index: 60;
  background: linear-gradient(90deg, var(--em), var(--em-glow));
  transform-origin: left; transform: scaleX(0); pointer-events: none;
}

/* film grain + vignette on every page */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none; z-index: 2;
  background:
    radial-gradient(120% 120% at 50% 0%, transparent 55%, rgba(0,0,0,0.55) 100%);
  mix-blend-mode: multiply;
}
body::after {
  content: "";
  position: fixed; inset: -50%;
  pointer-events: none; z-index: 3; opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 6s steps(6) infinite;
}
@keyframes grain {
  0%,100%{transform:translate(0,0)} 20%{transform:translate(-4%,3%)}
  40%{transform:translate(3%,-4%)} 60%{transform:translate(-3%,2%)}
  80%{transform:translate(2%,4%)}
}

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }
section { position: relative; }
.eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--em-bright); display: inline-flex; align-items: center; gap: 12px;
}
.eyebrow::before {
  content: ""; width: 28px; height: 1px; background: var(--em); display: inline-block;
}
.serif { font-family: var(--font-serif); font-style: italic; font-weight: 400; }

h1,h2,h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.02; letter-spacing: -0.02em; }
.display {
  font-size: clamp(2.8rem, 8vw, 6.6rem);
  font-weight: 700; line-height: 0.96; letter-spacing: -0.035em;
}
.h-sec { font-size: clamp(2rem, 4.5vw, 3.6rem); }
p.lead { font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: var(--ink-soft); max-width: 60ch; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 500; font-size: 0.95rem;
  padding: 15px 28px; border-radius: 100px; position: relative;
  transition: transform .5s var(--ease), background .4s, color .4s, box-shadow .5s;
  will-change: transform;
}
.btn-primary { background: var(--em); color: #04120c; box-shadow: 0 4px 20px -6px rgba(16,185,129,0.45); }
.btn-primary:hover { background: var(--em-bright); box-shadow: 0 14px 44px -12px rgba(52,211,153,0.65); transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { border-color: var(--em); color: var(--em-bright); background: rgba(16,185,129,0.06); }
.btn:active { transform: scale(0.97); transition-duration: .1s; }
.btn .arrow { transition: transform .5s var(--ease); }
.btn:hover .arrow { transform: translateX(5px); }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h); z-index: 40;
  display: flex; align-items: center;
  transition: background .5s var(--ease), backdrop-filter .5s, border-color .5s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(6,20,13,0.72); backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; letter-spacing: -0.02em; }
.brand .mark { width: 30px; height: 30px; }
.brand .dot { color: var(--em-bright); }
.brand-logo { height: 26px; width: auto; display: block; }
.footer .brand-logo { height: 34px; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  font-family: var(--font-display); font-size: 0.92rem; color: var(--ink-soft);
  padding: 9px 16px; border-radius: 100px; position: relative; transition: color .3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 3px; height: 1px;
  background: var(--em); transform: scaleX(0); transform-origin: left;
  transition: transform .4s var(--ease);
}
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-cta { margin-left: 10px; }
.burger { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; gap: 5px; align-items: center; }
.burger span { width: 22px; height: 1.6px; background: var(--ink); transition: transform .4s var(--ease), opacity .3s; }
.burger.open span:nth-child(1){ transform: translateY(6.6px) rotate(45deg); }
.burger.open span:nth-child(2){ opacity: 0; }
.burger.open span:nth-child(3){ transform: translateY(-6.6px) rotate(-45deg); }

/* mobile menu */
.mobile-menu {
  position: fixed; inset: 0; z-index: 39; background: rgba(6,20,13,0.97);
  backdrop-filter: blur(20px); display: flex; flex-direction: column;
  justify-content: center; align-items: flex-start; gap: 8px; padding: 0 40px;
  transform: translateY(-100%); transition: transform .6s var(--ease); pointer-events: none;
}
.mobile-menu.open { transform: translateY(0); pointer-events: auto; }
.mobile-menu a { font-family: var(--font-display); font-size: clamp(2rem,9vw,3.2rem); font-weight: 600; color: var(--ink); letter-spacing: -0.03em; }
.mobile-menu a .idx { font-family: var(--font-body); font-size: 0.9rem; color: var(--em-bright); margin-right: 14px; }

/* ---------- Reveal system ---------- */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-d="1"]{ transition-delay: .08s; }
[data-reveal][data-d="2"]{ transition-delay: .16s; }
[data-reveal][data-d="3"]{ transition-delay: .24s; }
[data-reveal][data-d="4"]{ transition-delay: .32s; }
[data-reveal][data-d="5"]{ transition-delay: .40s; }

/* mask reveal for headlines */
.line-mask { overflow: hidden; display: block; }
.line-mask > span { display: block; transform: translateY(105%); transition: transform 1s var(--ease); }
.line-mask.in > span { transform: none; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 80px 0 40px; margin-top: 40px; position: relative; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; }
.footer h4 { font-family: var(--font-display); font-size: 0.8rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); margin-bottom: 20px; }
.footer .flinks { display: flex; flex-direction: column; gap: 12px; }
.footer .flinks a { color: var(--ink-soft); transition: color .3s; width: fit-content; }
.footer .flinks a:hover { color: var(--em-bright); }
.footer-big { font-family: var(--font-display); font-weight: 700; font-size: clamp(3rem,10vw,7rem); letter-spacing: -0.04em; line-height: 1; margin-top: 64px; color: transparent; -webkit-text-stroke: 1px rgba(160,200,185,0.18); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }

/* ---------- Aurora / ambient glow ---------- */
.aurora { position: absolute; inset: 0; overflow: hidden; z-index: 0; pointer-events: none; }
.aurora .blob { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.5; }
.aurora .b1 { width: 620px; height: 620px; background: radial-gradient(circle, rgba(16,185,129,0.5), transparent 65%); top: -220px; left: -140px; animation: drift1 18s ease-in-out infinite; }
.aurora .b2 { width: 520px; height: 520px; background: radial-gradient(circle, rgba(52,211,153,0.32), transparent 62%); bottom: -200px; right: -120px; animation: drift2 22s ease-in-out infinite; }
@keyframes drift1 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(80px,60px)} }
@keyframes drift2 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(-70px,-50px)} }

/* ============================================================
   INTRO OVERLAY — animated logo reveal
   ============================================================ */
#intro {
  position: fixed; inset: 0; z-index: 100; background: var(--bg);
  display: grid; place-items: center; overflow: hidden;
}
#intro .scan {
  position: absolute; left: 0; right: 0; top: 50%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--em-bright), transparent);
  transform: scaleX(0); opacity: 0;
  animation: scan 1s var(--ease) .15s forwards;
}
@keyframes scan { 0%{transform:scaleX(0);opacity:0} 40%{opacity:1} 100%{transform:scaleX(1);opacity:.0} }
.intro-stage { position: relative; text-align: center; }
.intro-mark { width: 92px; height: 92px; margin: 0 auto 22px; opacity: 0; transform: scale(.4) rotate(-30deg); animation: markIn 1s var(--ease) .55s forwards; filter: drop-shadow(0 0 26px rgba(52,211,153,.5)); }
@keyframes markIn { to { opacity: 1; transform: scale(1) rotate(0); } }
.intro-word { display: flex; justify-content: center; overflow: hidden; }
.intro-word span {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(3.4rem, 12vw, 7rem);
  letter-spacing: -0.04em; line-height: 1; display: inline-block;
  transform: translateY(115%); opacity: 0;
}
.intro-word span:nth-child(1){ animation: wordUp .9s var(--ease) .8s forwards; }
.intro-word span:nth-child(2){ animation: wordUp .9s var(--ease) .92s forwards; color: var(--em-bright); font-family: var(--font-serif); font-style: italic; padding: 0 .04em; }
.intro-word span:nth-child(3){ animation: wordUp .9s var(--ease) 1.04s forwards; }
@keyframes wordUp { to { transform: translateY(0); opacity: 1; } }
/* intro logo (real brand mark) reveal */
.intro-logo-mask { overflow: hidden; padding: 10px 0; }
.intro-logo {
  width: min(62vw, 440px); height: auto; display: block; margin: 0 auto;
  transform: translateY(115%); opacity: 0;
  animation: wordUp 1s var(--ease) .5s forwards;
  filter: drop-shadow(0 0 34px rgba(52,211,153,.4));
}
.intro-tag {
  font-family: var(--font-display); font-size: 0.74rem; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--muted); margin-top: 20px; opacity: 0; animation: fadeUp .8s ease 1.35s forwards;
}
@keyframes fadeUp { from{opacity:0; transform: translateY(10px)} to{opacity:.9; transform:none} }
/* curtain wipe */
#intro.done { animation: curtain 1s var(--ease) forwards; }
@keyframes curtain { to { transform: translateY(-101%); } }

/* ---------- Custom cursor ---------- */
.cursor-dot, .cursor-ring { position: fixed; top: 0; left: 0; z-index: 90; pointer-events: none; border-radius: 50%; mix-blend-mode: difference; }
.cursor-dot { width: 6px; height: 6px; background: var(--em-bright); transform: translate(-50%,-50%); }
.cursor-ring { width: 34px; height: 34px; border: 1px solid rgba(110,231,183,0.6); transform: translate(-50%,-50%); transition: width .3s, height .3s, background .3s, border-color .3s; }
.cursor-ring.hover { width: 56px; height: 56px; background: rgba(110,231,183,0.08); border-color: var(--em-bright); }
@media (hover: none) { .cursor-dot, .cursor-ring { display: none; } }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; transition-duration: .001s !important; }
  html { scroll-behavior: auto; }
  [data-reveal]{ opacity:1; transform:none; }
  .line-mask>span{ transform:none; }
  #intro{ display:none; }
}

/* ---------- Responsive base ---------- */
@media (max-width: 860px) {
  .nav-links, .nav-cta { display: none; }
  .burger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .wrap { padding: 0 22px; }
}