/* ════════════════════════════════════════════════════════════════
   PadiScan — Design System
   Forest green + gold · glassmorphism · light & dark
   Fonts: Sora (display) + Manrope (body)
═══════════════════════════════════════════════════════════════════ */

/* ---------- Tokens ---------- */
:root {
  /* brand */
  --green-900: #0c3a1f;
  --green-800: #134e2a;
  --green-700: #15803d;
  --green-600: #189c4a;
  --green-500: #22c55e;
  --green-400: #4ade80;
  --green-300: #86efac;
  --gold-600:  #ca8a04;
  --gold-500:  #eab308;
  --gold-400:  #facc15;

  /* status */
  --red:    #e0533c;
  --orange: #e08a2c;
  --violet: #8b5cf6;

  --primary: var(--green-700);
  --primary-bright: var(--green-500);
  --accent: var(--gold-500);

  /* radius / shadow */
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-xl: 36px;
  --r-pill: 999px;

  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);

  --maxw: 1240px;
  --nav-h: 76px;
}

/* ---------- Light (default) ---------- */
:root, [data-theme="light"] {
  color-scheme: light;
  --bg:        #eef3ec;
  --bg-2:      #e3ebe0;
  --paper:     #ffffff;
  --ink:       #0e2417;
  --ink-soft:  #3a4f42;
  --ink-mute:  #6c8074;
  --line:      rgba(14,36,23,.10);
  --line-2:    rgba(14,36,23,.06);

  --glass:        rgba(255,255,255,.62);
  --glass-strong: rgba(255,255,255,.78);
  --glass-brd:    rgba(255,255,255,.85);
  --glass-tint:   rgba(34,197,94,.05);

  --shadow-sm: 0 2px 8px rgba(13,49,27,.06);
  --shadow:    0 14px 40px -16px rgba(13,49,27,.22);
  --shadow-lg: 0 40px 90px -30px rgba(13,49,27,.30);
  --glow:      0 0 0 1px rgba(34,197,94,.18), 0 20px 50px -20px rgba(21,128,61,.35);

  --hero-grad: radial-gradient(120% 90% at 80% -10%, rgba(34,197,94,.20), transparent 55%),
               radial-gradient(90% 70% at 0% 0%, rgba(234,179,8,.14), transparent 50%);
  --mesh-op: .9;
}

/* ---------- Dark ---------- */
[data-theme="dark"] {
  color-scheme: dark;
  --bg:        #05130c;
  --bg-2:      #07190f;
  --paper:     #0c2114;
  --ink:       #e9f6ec;
  --ink-soft:  #b3ccb9;
  --ink-mute:  #6f8c78;
  --line:      rgba(255,255,255,.10);
  --line-2:    rgba(255,255,255,.05);

  --glass:        rgba(18,52,32,.46);
  --glass-strong: rgba(20,58,36,.66);
  --glass-brd:    rgba(120,200,150,.16);
  --glass-tint:   rgba(34,197,94,.06);

  --shadow-sm: 0 2px 10px rgba(0,0,0,.4);
  --shadow:    0 22px 50px -20px rgba(0,0,0,.6);
  --shadow-lg: 0 50px 110px -34px rgba(0,0,0,.75);
  --glow:      0 0 0 1px rgba(34,197,94,.22), 0 24px 60px -22px rgba(34,197,94,.30);

  --hero-grad: radial-gradient(120% 90% at 80% -10%, rgba(34,197,94,.22), transparent 55%),
               radial-gradient(90% 70% at 0% 0%, rgba(234,179,8,.12), transparent 50%);
  --mesh-op: 1;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "Manrope", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background .5s var(--ease), color .4s var(--ease);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; padding: 0; }
h1,h2,h3,h4 { font-family: "Sora", sans-serif; font-weight: 700; line-height: 1.08; letter-spacing: -.02em; }
::selection { background: var(--green-400); color: #06200f; }

/* page mesh background */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2;
  background: var(--hero-grad);
  opacity: var(--mesh-op);
  pointer-events: none;
}

/* ---------- Layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section { padding: clamp(64px, 9vw, 130px) 0; position: relative; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--primary); 
}
[data-theme="dark"] .eyebrow { color: var(--green-400); }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--accent); border-radius: 2px; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow::before { display: none; }
.section-title { font-size: clamp(1.9rem, 4vw, 3.05rem); margin: 16px 0 14px; }
.section-sub { color: var(--ink-soft); font-size: 1.08rem; max-width: 56ch; }
.section-head.center .section-sub { margin-inline: auto; }

/* gradient text */
.grad {
  background: linear-gradient(105deg, var(--green-600), var(--green-400) 60%, var(--gold-500));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- Glass card ---------- */
.glass {
  background: var(--glass);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid var(--glass-brd);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .45s var(--ease-out), box-shadow .45s var(--ease-out), border-color .3s;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: "Sora", sans-serif; font-weight: 600; font-size: .98rem;
  padding: 14px 26px; border-radius: var(--r-pill);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s, color .3s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary {
  color: #06210f;
  background: linear-gradient(120deg, var(--green-400), var(--green-500) 55%, var(--green-600));
  box-shadow: 0 12px 30px -10px rgba(21,128,61,.6), inset 0 1px 0 rgba(255,255,255,.4);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 20px 44px -12px rgba(21,128,61,.7), inset 0 1px 0 rgba(255,255,255,.4); }
.btn-ghost {
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  color: var(--ink);
}
.btn-ghost:hover { transform: translateY(-3px); border-color: var(--green-400); color: var(--primary); }
[data-theme="dark"] .btn-ghost:hover { color: var(--green-300); }
.btn-gold {
  color: #2a1c00;
  background: linear-gradient(120deg, var(--gold-400), var(--gold-500) 60%, var(--gold-600));
  box-shadow: 0 12px 30px -10px rgba(202,138,4,.55), inset 0 1px 0 rgba(255,255,255,.4);
}
.btn-gold:hover { transform: translateY(-3px); }
.btn-lg { padding: 17px 34px; font-size: 1.06rem; }
.btn-block { width: 100%; }

/* chip / tag */
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 14px; border-radius: var(--r-pill);
  font-size: .82rem; font-weight: 600;
  background: var(--glass-tint); border: 1px solid var(--line);
  color: var(--ink-soft);
}
.tag { padding: 5px 12px; border-radius: var(--r-pill); font-size: .76rem; font-weight: 700; letter-spacing: .02em; }
.tag-high   { background: rgba(224,83,60,.14);  color: var(--red); }
.tag-medium { background: rgba(224,138,44,.16); color: var(--orange); }
.tag-blast  { background: rgba(139,92,246,.16); color: var(--violet); }
.tag-none   { background: rgba(34,197,94,.16);  color: var(--green-600); }
[data-theme="dark"] .tag-none { color: var(--green-300); }

/* ---------- Navbar ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background .4s var(--ease), box-shadow .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: var(--glass-strong);
  -webkit-backdrop-filter: blur(22px) saturate(160%); backdrop-filter: blur(22px) saturate(160%);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.nav .wrap { display: flex; align-items: center; gap: 24px; width: 100%; }
.brand { display: flex; align-items: center; gap: 12px; font-family: "Sora"; font-weight: 800; font-size: 1.22rem; letter-spacing: -.02em; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 13px; display: grid; place-items: center;
  background: linear-gradient(140deg, var(--green-500), var(--green-700));
  box-shadow: 0 8px 20px -8px rgba(21,128,61,.7), inset 0 1px 0 rgba(255,255,255,.4);
  position: relative; overflow: hidden;
}
.brand-mark svg { width: 24px; height: 24px; }
.brand b { color: var(--primary); }
[data-theme="dark"] .brand b { color: var(--green-300); }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: 18px; }
.nav-links a {
  padding: 9px 15px; border-radius: var(--r-pill); font-size: .94rem; font-weight: 600;
  color: var(--ink-soft); transition: color .25s, background .25s;
}
.nav-links a:hover { color: var(--ink); background: var(--glass-tint); }
.nav-links a.active { color: var(--primary); background: var(--glass-tint); }
[data-theme="dark"] .nav-links a.active { color: var(--green-300); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

.theme-toggle {
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--glass); border: 1px solid var(--glass-brd);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  transition: transform .4s var(--ease), border-color .3s;
}
.theme-toggle:hover { transform: rotate(20deg) scale(1.06); border-color: var(--green-400); }
.theme-toggle svg { width: 20px; height: 20px; }
.theme-toggle .ico-sun { display: none; }
[data-theme="dark"] .theme-toggle .ico-sun { display: block; }
[data-theme="dark"] .theme-toggle .ico-moon { display: none; }

.nav-burger { display: none; width: 44px; height: 44px; border-radius: 12px; place-items: center; background: var(--glass); border: 1px solid var(--glass-brd); }
.nav-burger svg { width: 22px; height: 22px; }

/* mobile menu */
.mobile-menu {
  position: fixed; inset: var(--nav-h) 0 0 0; z-index: 99;
  background: var(--glass-strong);
  -webkit-backdrop-filter: blur(26px); backdrop-filter: blur(26px);
  padding: 24px 28px; display: none; flex-direction: column; gap: 6px;
  transform: translateY(-12px); opacity: 0; transition: opacity .35s, transform .35s;
}
.mobile-menu.open { display: flex; opacity: 1; transform: none; }
.mobile-menu a { padding: 16px; border-radius: var(--r-md); font-size: 1.15rem; font-weight: 600; font-family: "Sora"; }
.mobile-menu a:hover, .mobile-menu a.active { background: var(--glass-tint); color: var(--primary); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 72px 0 36px; margin-top: 40px; position: relative; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; }
.footer h5 { font-family: "Sora"; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-mute); margin-bottom: 18px; }
.footer-col a { display: block; color: var(--ink-soft); padding: 7px 0; font-size: .96rem; transition: color .2s, transform .2s; }
.footer-col a:hover { color: var(--primary); transform: translateX(4px); }
.footer-about p { color: var(--ink-soft); margin: 16px 0 20px; max-width: 38ch; font-size: .96rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 54px; padding-top: 26px; border-top: 1px solid var(--line-2); color: var(--ink-mute); font-size: .88rem; }

/* ---------- Loading splash ---------- */
.splash {
  position: fixed; inset: 0; z-index: 9999;
  display: grid; place-items: center;
  background: var(--bg);
  transition: opacity .7s var(--ease), visibility .7s;
}
.splash.done { opacity: 0; visibility: hidden; }
.splash-inner { text-align: center; }
.splash-logo {
  width: 92px; height: 92px; border-radius: 26px; margin: 0 auto 26px;
  display: grid; place-items: center;
  background: linear-gradient(140deg, var(--green-500), var(--green-700));
  box-shadow: 0 24px 50px -16px rgba(21,128,61,.6);
  animation: splash-pop .9s var(--ease-out) both;
}
.splash-logo svg { width: 52px; height: 52px; animation: sway 2.4s var(--ease) infinite; }
.splash-name { font-family: "Sora"; font-weight: 800; font-size: 1.7rem; letter-spacing: -.02em; }
.splash-name b { color: var(--primary); }
.splash-sub { color: var(--ink-mute); font-size: .9rem; margin-top: 4px; letter-spacing: .04em; }
.splash-bar { width: 200px; height: 5px; border-radius: 99px; background: var(--line); margin: 26px auto 0; overflow: hidden; }
.splash-bar i { display: block; height: 100%; width: 0; border-radius: 99px; background: linear-gradient(90deg, var(--green-500), var(--gold-500)); animation: load 1.4s var(--ease-out) forwards; }
@keyframes load { to { width: 100%; } }
@keyframes splash-pop { from { opacity: 0; transform: scale(.6) translateY(20px); } }
@keyframes sway { 0%,100% { transform: rotate(-6deg); } 50% { transform: rotate(6deg); } }

/* ---------- Scroll reveal ---------- */
[data-reveal] { opacity: 0; transform: translateY(34px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .08s; }
[data-reveal][data-delay="2"] { transition-delay: .16s; }
[data-reveal][data-delay="3"] { transition-delay: .24s; }
[data-reveal][data-delay="4"] { transition-delay: .32s; }
[data-reveal][data-delay="5"] { transition-delay: .40s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(20px);
  z-index: 9998; padding: 14px 22px; border-radius: var(--r-pill);
  background: var(--paper); border: 1px solid var(--line); box-shadow: var(--shadow);
  font-weight: 600; font-size: .92rem; opacity: 0; transition: opacity .3s, transform .3s;
  display: flex; align-items: center; gap: 10px; max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { border-color: var(--red); color: var(--red); }
.toast.success { border-color: var(--green-500); }

/* ---------- Utility ---------- */
.center-x { text-align: center; }
.mt-s { margin-top: 14px; } .mt-m { margin-top: 28px; } .mt-l { margin-top: 48px; }
.grid { display: grid; gap: 24px; }
.flex { display: flex; }
.fade-up { animation: fadeUp .9s var(--ease-out) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(26px); } }

/* ---------- Responsive base ---------- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-burger { display: grid; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-about { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  /* Cegah menu navbar terpotong di layar kecil: CTA pindah ke menu mobile */
  .nav-cta { display: none; }
  .nav-right { gap: 8px; }
  .brand { font-size: 1.08rem; }
  .brand-mark { width: 34px; height: 34px; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .footer-grid { grid-template-columns: 1fr; }
}