/* Obsitian Island — main stylesheet. Pure vanilla, mobile-first. */

:root {
  --bg:         #0a0a0a;
  --surface:    #111111;
  --card:       #161616;
  --gold:       #c9a84c;
  --gold-hover: #e8c96e;
  --gold-dim:   #8c7536;
  --text:       #ffffff;
  --muted:      #888888;
  --border:     #2a2a2a;
  --radius:     12px;
  --max:        1200px;
  --pad:        clamp(20px, 4vw, 56px);
  --nav-h:      72px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', system-ui, sans-serif; font-weight: 400;
  overflow-x: hidden; -webkit-font-smoothing: antialiased;
  line-height: 1.65;
}
h1, h2, h3 { font-family: 'Cormorant Garamond', serif; font-weight: 500; letter-spacing: 0.01em; margin: 0; }
a { color: var(--gold); text-decoration: none; transition: color 0.25s; }
a:hover { color: var(--gold-hover); }
p { color: #d8d8d8; margin: 0 0 16px; }
img { max-width: 100%; display: block; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ========== NAV ========== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--pad);
  background: transparent; border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s;
}
.nav.scrolled { background: rgba(10,10,10,0.92); backdrop-filter: blur(14px); border-bottom-color: var(--border); }
.nav .brand { font-family: 'Cormorant Garamond', serif; font-size: 22px; color: var(--gold); letter-spacing: 0.02em; font-weight: 500; }
.nav .brand span { color: var(--muted); font-family: 'DM Sans', sans-serif; font-size: 10px; letter-spacing: 0.28em; text-transform: uppercase; margin-left: 12px; }
.nav ul { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; }
.nav ul a { color: var(--muted); }
.nav ul a:hover { color: var(--text); }
.nav-toggle { display: none; background: transparent; border: 0; color: var(--text); padding: 8px; cursor: pointer; }
.nav-toggle svg { width: 22px; height: 22px; }

/* ========== BUTTONS ========== */
.btn {
  display: inline-block; padding: 14px 30px;
  font-family: 'DM Sans', sans-serif; font-size: 11px; font-weight: 600;
  letter-spacing: 0.24em; text-transform: uppercase;
  border: 1px solid var(--gold); color: var(--gold); background: transparent;
  cursor: pointer; transition: all 0.3s ease; border-radius: var(--radius);
}
.btn:hover { background: var(--gold); color: var(--bg); box-shadow: 0 0 30px rgba(201,168,76,0.3); }
.btn.primary { background: var(--gold); color: var(--bg); }
.btn.primary:hover { background: var(--gold-hover); border-color: var(--gold-hover); box-shadow: 0 0 40px rgba(201,168,76,0.45); }
.btn.ghost { border-color: var(--border); color: var(--muted); }
.btn.ghost:hover { border-color: var(--gold-dim); color: var(--gold); background: transparent; box-shadow: none; }

/* ========== HERO ========== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: var(--nav-h) var(--pad) 60px; text-align: center; overflow: hidden;
}
.hero canvas#particles { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; }
.hero::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, transparent 40%, rgba(10,10,10,0.6) 75%, rgba(10,10,10,0.95) 100%);
  pointer-events: none; z-index: 1;
}
.hero .inner { position: relative; z-index: 2; max-width: 900px; }
.hero .eyebrow { color: var(--gold); font-size: 11px; letter-spacing: 0.32em; text-transform: uppercase; margin-bottom: 32px; font-weight: 500; }
.hero h1 {
  font-size: clamp(52px, 10vw, 132px); line-height: 0.95;
  margin-bottom: 24px; letter-spacing: -0.01em; color: var(--gold);
  text-shadow: 0 0 60px rgba(201,168,76,0.25);
}
.hero .sub { font-size: clamp(15px, 1.8vw, 20px); line-height: 1.7; color: #cfcfcf; max-width: 620px; margin: 0 auto 40px; }
.hero .ctas { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.hero .scroll-ind {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  z-index: 2; font-size: 10px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--muted); animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, -8px); } }

/* Shimmer on gold headings */
@keyframes shimmer {
  0% { background-position: -200px 0; }
  100% { background-position: 200px 0; }
}
.shimmer {
  background: linear-gradient(90deg, var(--gold), var(--gold-hover), var(--gold));
  background-size: 200px 100%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: shimmer 4s linear infinite;
}

/* ========== SECTIONS ========== */
section { padding: clamp(80px, 12vh, 140px) var(--pad); scroll-margin-top: var(--nav-h); }
.wrap { max-width: var(--max); margin: 0 auto; }
.section-head { margin-bottom: 56px; max-width: 720px; }
.section-head .label { color: var(--gold); font-size: 11px; letter-spacing: 0.32em; text-transform: uppercase; margin-bottom: 18px; font-weight: 600; }
.section-head h2 { font-size: clamp(32px, 5vw, 52px); line-height: 1.05; margin-bottom: 18px; }
.section-head p { font-size: 17px; color: #cfcfcf; max-width: 620px; }

/* Scroll animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.9s ease, transform 0.9s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ========== ABOUT — 3 cards ========== */
.about { border-top: 1px solid #1a1a1a; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.feature {
  background: var(--card); border: 1px solid var(--border); padding: 32px 28px;
  border-radius: var(--radius); transition: border-color 0.3s, transform 0.3s;
}
.feature:hover { border-color: var(--gold-dim); transform: translateY(-3px); }
.feature .icon { font-size: 28px; color: var(--gold); margin-bottom: 14px; display: block; }
.feature h3 { font-size: 22px; margin-bottom: 10px; }
.feature p { font-size: 14px; color: #c0c0c0; margin: 0; }

/* ========== PACKAGES ========== */
.packages { background: var(--surface); }
.package-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 20px; }
.pkg {
  background: var(--card); border: 1px solid var(--border); padding: 34px 30px 30px;
  display: flex; flex-direction: column; gap: 14px; border-radius: var(--radius);
  position: relative; overflow: hidden; transition: all 0.35s ease;
}
.pkg::before {
  content: ''; position: absolute; top: 0; left: 0; height: 2px; width: 48px;
  background: var(--gold); transition: width 0.4s ease;
}
.pkg:hover { border-color: var(--gold-dim); transform: translateY(-3px); box-shadow: 0 0 30px rgba(201,168,76,0.15); }
.pkg:hover::before { width: 100%; }
.pkg .tag { font-family: 'JetBrains Mono', ui-monospace, monospace; color: var(--gold); font-size: 11px; letter-spacing: 0.14em; }
.pkg h3 { font-size: 28px; line-height: 1.1; }
.pkg .price { font-family: 'Cormorant Garamond', serif; font-size: 38px; color: var(--gold); font-weight: 500; line-height: 1; }
.pkg .price small { font-family: 'DM Sans', sans-serif; font-size: 11px; color: var(--muted); letter-spacing: 0.18em; text-transform: uppercase; display: block; margin-top: 6px; font-weight: 500; }
.pkg .desc { color: #c0c0c0; font-size: 14px; line-height: 1.7; flex: 1; }
.pkg ul { list-style: none; padding: 0; margin: 0 0 12px; font-size: 12px; color: #b0b0b0; }
.pkg ul li { padding: 3px 0; padding-left: 16px; position: relative; }
.pkg ul li::before { content: '◆'; color: var(--gold); position: absolute; left: 0; font-size: 8px; top: 8px; }
.pkg .cta { margin-top: auto; }

/* ========== HOW IT WORKS ========== */
.how { position: relative; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; position: relative; }
.steps::after {
  content: ''; position: absolute; top: 42px; left: 5%; right: 5%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dim) 20%, var(--gold-dim) 80%, transparent);
  z-index: 0;
}
@media (max-width: 780px) { .steps::after { display: none; } }
.step {
  background: var(--card); border: 1px solid var(--border); padding: 36px 28px;
  border-radius: var(--radius); position: relative; z-index: 1;
}
.step .num {
  font-family: 'Cormorant Garamond', serif; font-size: 46px; line-height: 1;
  color: var(--gold); font-weight: 500; margin-bottom: 12px; display: block;
}
.step h3 { font-size: 22px; margin-bottom: 8px; }
.step p { color: #c0c0c0; font-size: 13px; line-height: 1.7; margin: 0; }

/* ========== API PREVIEW ========== */
.api { background: var(--surface); }
.api .grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
@media (max-width: 880px) { .api .grid { grid-template-columns: 1fr; } }
.code-block { background: #0a0a0a; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.code-tabs {
  display: flex; border-bottom: 1px solid var(--border); background: #0c0c0c;
}
.code-tabs button {
  background: transparent; border: 0; color: var(--muted);
  padding: 12px 18px; font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 0.1em; cursor: pointer; border-right: 1px solid var(--border);
  transition: color 0.25s, background 0.25s;
}
.code-tabs button.active { color: var(--gold); background: #161616; }
.code-tabs .copy {
  margin-left: auto; border-right: 0; color: var(--muted); font-size: 10px;
  letter-spacing: 0.2em; text-transform: uppercase;
}
.code-tabs .copy:hover { color: var(--gold); }
.code-body { padding: 0; }
.code-body pre {
  margin: 0; padding: 22px 24px; overflow-x: auto;
  font-family: 'JetBrains Mono', monospace; font-size: 13px; line-height: 1.65;
  color: #e6e6e6; display: none;
}
.code-body pre.active { display: block; }
.tok-k { color: #c58aff; }
.tok-s { color: #a3e6a3; }
.tok-n { color: #e6d58a; }
.tok-c { color: var(--muted); font-style: italic; }
.tok-p { color: var(--gold); }

/* ========== WHAT YOU GET ========== */
.what { background: var(--bg); }
.service-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px; margin-bottom: 40px;
}
.svc { background: var(--card); border: 1px solid var(--border); padding: 26px 24px; border-radius: var(--radius); }
.svc h3 { color: var(--gold); font-family: 'DM Sans', sans-serif; font-weight: 600; font-size: 13px; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 10px; }
.svc p { color: #c8c8c8; font-size: 14px; line-height: 1.75; margin: 0; }

.svc-details { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.svc-details details {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0; overflow: hidden; transition: border-color 0.3s;
}
.svc-details details[open] { border-color: var(--gold-dim); }
.svc-details summary {
  padding: 20px 24px; cursor: pointer; list-style: none; position: relative;
  font-size: 15px; line-height: 1.5; color: #dcdcdc;
}
.svc-details summary::-webkit-details-marker { display: none; }
.svc-details summary::after {
  content: '＋'; position: absolute; right: 24px; top: 50%; transform: translateY(-50%);
  color: var(--gold); font-size: 22px; font-weight: 300; transition: transform 0.3s;
}
.svc-details details[open] summary::after { content: '−'; }
.svc-details summary strong { color: var(--gold); margin-right: 8px; }
.svc-details ul { padding: 0 28px 4px 48px; margin: 0; list-style: none; color: #bdbdbd; font-size: 13px; line-height: 1.8; }
.svc-details ul li { padding: 3px 0; position: relative; }
.svc-details ul li::before { content: '◆'; color: var(--gold); position: absolute; left: -18px; font-size: 8px; top: 9px; }
.svc-details .where { padding: 14px 28px 22px; color: var(--muted); font-size: 12px; letter-spacing: 0.04em; font-style: italic; margin: 0; border-top: 1px solid #1a1a1a; margin-top: 14px; padding-top: 14px; }

/* ========== FAQ ========== */
.faq { background: var(--surface); }
.faq-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; }
.faq-grid details {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  transition: border-color 0.3s;
}
.faq-grid details[open] { border-color: var(--gold-dim); }
.faq-grid summary {
  padding: 18px 24px; cursor: pointer; list-style: none; font-size: 14px; font-weight: 500;
  color: var(--text); position: relative; line-height: 1.5;
}
.faq-grid summary::-webkit-details-marker { display: none; }
.faq-grid summary::after { content: '＋'; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); color: var(--gold); font-size: 20px; font-weight: 300; }
.faq-grid details[open] summary::after { content: '−'; }
.faq-grid p { padding: 0 24px 20px; margin: 0; color: #b8b8b8; font-size: 13px; line-height: 1.75; }

/* ========== MYSTERIOUS SECTION ========== */
.mysterious {
  background: #000; padding: clamp(140px, 20vh, 200px) var(--pad); text-align: center;
  border-top: 1px solid #0d0d0d; border-bottom: 1px solid #0d0d0d;
}
.mysterious p {
  font-family: 'Cormorant Garamond', serif; font-size: clamp(24px, 3.5vw, 44px);
  color: #6a6a6a; font-style: italic; letter-spacing: 0.03em;
  animation: flicker 6s ease-in-out infinite;
  margin: 0;
}
@keyframes flicker {
  0%, 100%   { opacity: 0.35; text-shadow: 0 0 18px rgba(180,180,180,0.05); }
  47%        { opacity: 0.38; }
  48%        { opacity: 0.12; }
  49%        { opacity: 0.4; }
  50%        { opacity: 0.25; }
  51%        { opacity: 0.42; }
  52%        { opacity: 0.15; }
  53%        { opacity: 0.4; }
  70%        { opacity: 0.38; }
}

/* ========== CONTACT ========== */
.contact { background: var(--bg); }
.contact .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 880px) { .contact .grid { grid-template-columns: 1fr; gap: 32px; } }
.contact .info .chan {
  margin-top: 18px; padding: 22px 24px;
  background: var(--card); border-left: 2px solid var(--gold); border-radius: 6px;
}
.contact .info .chan .k { color: var(--muted); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; margin-bottom: 6px; }
.contact .info .chan .v { color: var(--text); font-family: 'JetBrains Mono', monospace; font-size: 13px; }

.form-row { margin-bottom: 16px; }
.form-row label { display: block; color: var(--muted); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; margin-bottom: 8px; }
.form-row input, .form-row textarea {
  width: 100%; background: var(--card); border: 1px solid var(--border);
  color: var(--text); padding: 12px 14px; font-family: inherit; font-size: 14px; outline: none;
  transition: border-color 0.25s; border-radius: 8px;
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--gold); }
.form-row textarea { resize: vertical; min-height: 130px; }
.form .status { min-height: 22px; margin-top: 12px; font-size: 13px; }
.form .status.ok { color: #6edc92; }
.form .status.err { color: #d47272; }

/* ========== FOOTER ========== */
footer {
  padding: 40px var(--pad) 48px; border-top: 1px solid var(--border);
  background: var(--bg); font-size: 12px; color: var(--muted); text-align: center;
}
footer .brand-line { color: var(--gold); font-family: 'Cormorant Garamond', serif; font-size: 20px; margin-bottom: 6px; }
footer .tag { color: var(--muted); font-size: 10px; letter-spacing: 0.26em; text-transform: uppercase; margin-bottom: 22px; }
footer .links { display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; margin-bottom: 22px; font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; }
footer .links a { color: var(--muted); }
footer .links a:hover { color: var(--gold); }
footer .legal { color: #555; font-size: 11px; letter-spacing: 0.12em; }

/* Responsive nav */
@media (max-width: 880px) {
  .nav ul { display: none; }
  .nav-toggle { display: inline-block; }
  .nav.open ul {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: rgba(10,10,10,0.97); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border); padding: 14px var(--pad);
  }
  .nav.open ul li { padding: 10px 0; border-bottom: 1px solid #1a1a1a; }
  .nav.open ul li:last-child { border-bottom: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transition: none; opacity: 1; transform: none; }
  .shimmer { animation: none; }
  .mysterious p { animation: none; opacity: 0.4; }
}