:root {
  color-scheme: light dark;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --bg: #eef4ef;
  --bg-glow1: #c9ecd9;
  --bg-glow2: #f6edc4;
  --surface: #ffffff;
  --ink: #10302d;
  --muted: #455f5b;
  --line: #6b807b;
  --soft: #e3ece6;
  --accent: #0b7a52;
  --on-accent: #ffffff;
  --danger: #a3261d;
  --focus: #0b5fd0;
  --g1: #0a7a50;
  --g2: #0b6a6e;
  --g3: #0f4f6e;
  --tiket: #f3c63a;
  --tiket-ink: #12302e;
  --btn-bg: #12302e;
  --btn-ink: #ffffff;
  --card-edge: #7fb59b;
  --card-glow: rgb(11 122 82 / .18);
  --wave-a: #bfe3cf;
  --wave-b: #9fd3bd;
  --art-file1: #5b7fd6;
  --art-file2: #3f5fb4;
  --art-plane: #14a36b;
  --art-plane2: #0d7a50;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #07151a;
    --bg-glow1: #0c3b3a;
    --bg-glow2: #2e3a12;
    --surface: #0f2329;
    --ink: #f1f7f4;
    --muted: #a9c0bb;
    --line: #5f7f86;
    --soft: #163038;
    --accent: #3ee59a;
    --on-accent: #07151a;
    --danger: #ff8f85;
    --focus: #f3c63a;
    --g1: #3ee59a;
    --g2: #a6e86a;
    --g3: #f3c63a;
    --btn-bg: #f1f7f4;
    --btn-ink: #0b1e1d;
    --card-edge: #2f8f7a;
    --card-glow: rgb(62 229 154 / .22);
    --wave-a: #0b4a47;
    --wave-b: #0e6a5a;
    --art-file1: #5b82dc;
    --art-file2: #3d5db6;
    --art-plane: #3ee59a;
    --art-plane2: #1fa56f;
  }
}

:root[data-theme="dark"] {
  --bg: #07151a;
  --bg-glow1: #0c3b3a;
  --bg-glow2: #2e3a12;
  --surface: #0f2329;
  --ink: #f1f7f4;
  --muted: #a9c0bb;
  --line: #5f7f86;
  --soft: #163038;
  --accent: #3ee59a;
  --on-accent: #07151a;
  --danger: #ff8f85;
  --focus: #f3c63a;
  --g1: #3ee59a;
  --g2: #a6e86a;
  --g3: #f3c63a;
  --btn-bg: #f1f7f4;
  --btn-ink: #0b1e1d;
  --card-edge: #2f8f7a;
  --card-glow: rgb(62 229 154 / .22);
  --wave-a: #0b4a47;
  --wave-b: #0e6a5a;
  --art-file1: #5b82dc;
  --art-file2: #3d5db6;
  --art-plane: #3ee59a;
  --art-plane2: #1fa56f;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
}

.sr {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
[hidden] { display: none !important; }

/* ---------- latar ---------- */
.bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(60rem 40rem at 85% 10%, var(--bg-glow1), transparent 60%),
    radial-gradient(50rem 30rem at 0% 100%, var(--bg-glow2), transparent 65%),
    var(--bg);
}
.wave { position: absolute; left: 0; bottom: 0; width: 100%; height: 38vh; min-height: 12rem; }
.wave-a { fill: var(--wave-a); opacity: .75; }
.wave-b { fill: var(--wave-b); opacity: .55; }

.page {
  position: relative; z-index: 1;
  max-width: 76rem; margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
}

/* ---------- header ---------- */
.top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .6rem; color: var(--ink); text-decoration: none; border-radius: .5rem; }
.brand-logo { color: var(--accent); }
.brand-name { font-size: 1.6rem; font-weight: 800; letter-spacing: -.02em; }
.badge {
  margin: 0; display: inline-flex; align-items: center; gap: .45rem;
  font-size: .85rem; color: var(--muted);
}
.badge svg { color: var(--accent); flex: none; }

/* ---------- tata letak ---------- */
.grid { display: grid; gap: 2rem; margin-top: 1.5rem; }

.hero { position: relative; }
.art { display: none; position: absolute; right: 0; top: -1rem; width: 15rem; height: auto; pointer-events: none; }
.art-file { fill: var(--art-file1); }
.art-file-fold { fill: var(--art-file2); }
.art-sun { fill: #cfe0ff; opacity: .9; }
.art-hill { fill: #cfe0ff; opacity: .75; }
.art-plane { fill: var(--art-plane); }
.art-plane-fold { fill: var(--art-plane2); }
.art-trail { stroke: var(--accent); }

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 8.5vw, 3.6rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -.03em;
  text-wrap: balance;
}
.hl {
  background: linear-gradient(90deg, var(--g1), var(--g2) 55%, var(--g3));
  -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
}
.hl-kode { position: relative; display: inline-block; }
.ul { position: absolute; left: 0; right: 0; bottom: -.28em; width: 100%; height: .22em; overflow: visible; }
.ul path { stroke: var(--tiket); }
.lead { margin: 1.5rem 0 0; font-size: 1.1rem; color: var(--muted); max-width: 32rem; }

.fitur { list-style: none; margin: 2rem 0 0; padding: 0; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(10.5rem, 1fr)); }
.fitur li { display: flex; align-items: center; gap: .75rem; }
.fitur-ikon {
  flex: none; display: grid; place-items: center;
  width: 3rem; height: 3rem; border-radius: .9rem;
  color: var(--accent);
  background: var(--soft);
  border: 1px solid var(--line);
}
.fitur strong { display: block; font-size: .95rem; }
.fitur small { display: block; color: var(--muted); font-size: .85rem; line-height: 1.3; }

/* ---------- kartu ---------- */
.card {
  position: relative;
  padding: 1rem;
  border-radius: 1.75rem;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid var(--card-edge);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--card-edge) 35%, transparent), 0 1.5rem 4rem var(--card-glow);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}

.tabs {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line); border-radius: 1rem; overflow: hidden;
  background: color-mix(in srgb, var(--soft) 60%, transparent);
}
.tabs label {
  display: flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 3.25rem; padding: .5rem .4rem;
  font-weight: 650; font-size: .95rem; cursor: pointer; user-select: none;
  color: var(--ink);
  transition: background-color .15s, color .15s;
}
.tabs label + label { border-left: 1px solid var(--line); }
.tabs label svg { flex: none; }
.tabs label:hover { background: color-mix(in srgb, var(--tiket) 22%, transparent); }

#mode-file:checked ~ .tabs label[for="mode-file"],
#mode-teks:checked ~ .tabs label[for="mode-teks"],
#mode-ambil:checked ~ .tabs label[for="mode-ambil"] {
  background: var(--tiket); color: var(--tiket-ink);
}
#mode-file:focus-visible ~ .tabs label[for="mode-file"],
#mode-teks:focus-visible ~ .tabs label[for="mode-teks"],
#mode-ambil:focus-visible ~ .tabs label[for="mode-ambil"] {
  outline: 3px solid var(--focus); outline-offset: -4px;
}

.panel { display: none; margin-top: 1.25rem; }
#mode-file:checked ~ .panels #form-file,
#mode-teks:checked ~ .panels #form-teks,
#mode-ambil:checked ~ .panels #form-ambil { display: block; }

.label { display: block; margin-bottom: .5rem; font-weight: 700; }

.drop {
  display: grid; justify-items: center; gap: .35rem; text-align: center;
  padding: 1.75rem 1rem; cursor: pointer;
  border: 2px dashed var(--line); border-radius: 1.1rem;
  background: color-mix(in srgb, var(--soft) 55%, transparent);
  color: var(--ink);
}
.drop svg { color: var(--accent); }
.drop-judul { font-weight: 700; font-size: 1.05rem; }
.drop-info { color: var(--muted); font-size: .9rem; max-width: 24rem; }
.drop:hover { border-color: var(--accent); }
#berkas:focus-visible + .btn, .drop:has(+ #berkas:focus-visible) { outline: 3px solid var(--focus); outline-offset: 2px; }

textarea, .kode {
  width: 100%;
  color: var(--ink);
  background: color-mix(in srgb, var(--soft) 55%, transparent);
  border: 1.5px solid var(--line); border-radius: 1rem;
  font: inherit;
}
textarea { display: block; padding: .9rem 1rem; resize: vertical; min-height: 9rem; max-height: 60vh; }
textarea::placeholder, .kode::placeholder { color: var(--muted); opacity: 1; }
textarea:focus-visible, .kode:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.kode-box { position: relative; display: flex; align-items: center; gap: .5rem; }
.kode {
  flex: 1; min-width: 0;
  padding: .85rem 1rem;
  font-family: var(--mono); font-size: 1.7rem; font-weight: 600;
  letter-spacing: .14em; text-align: center; text-transform: uppercase;
}
.ghost {
  flex: none; display: inline-flex; align-items: center; gap: .35rem;
  min-height: 2.75rem; padding: 0 .9rem;
  font: inherit; font-weight: 650; font-size: .9rem; cursor: pointer;
  color: var(--ink); background: transparent;
  border: 1.5px solid var(--line); border-radius: .8rem;
}
.ghost:hover { border-color: var(--accent); }
.ghost:focus-visible, .btn:focus-visible, .tiket-btn:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.btn {
  display: flex; align-items: center; justify-content: center; gap: .55rem;
  width: 100%; min-height: 3.25rem; margin-top: 1rem;
  font: inherit; font-weight: 750; font-size: 1.05rem; cursor: pointer;
  color: var(--btn-ink); background: var(--btn-bg);
  border: 0; border-radius: 1rem;
  transition: transform .12s, filter .12s;
}
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: progress; }

.teks-hasil { margin-top: 1rem; }
.teks-hasil .ghost { margin-top: .6rem; }

.file-hasil { margin-top: 1rem; padding: 1rem; text-align: center; border: 1.5px solid var(--line); border-radius: 1rem; background: color-mix(in srgb, var(--soft) 55%, transparent); }
.file-hasil p { margin: 0; }
.file-nama { font-weight: 700; overflow-wrap: anywhere; }
.file-meta { color: var(--muted); font-size: .9rem; }
a.btn { text-decoration: none; }

.catatan { display: flex; gap: .5rem; align-items: flex-start; margin: 1rem 0 0; color: var(--muted); font-size: .9rem; }
.catatan svg { flex: none; margin-top: .1rem; }
.status { min-height: 1.4em; margin: .75rem 0 0; font-size: .95rem; color: var(--muted); }
.status[data-state="error"] { color: var(--danger); font-weight: 650; }

/* ---------- progres unggah ---------- */
.progres { display: block; width: 100%; height: .6rem; margin-top: .9rem; appearance: none; -webkit-appearance: none; border: 0; border-radius: 1rem; overflow: hidden; background: var(--soft); }
.progres::-webkit-progress-bar { background: var(--soft); }
.progres::-webkit-progress-value { background: var(--accent); border-radius: 1rem; transition: width .15s; }
.progres::-moz-progress-bar { background: var(--accent); border-radius: 1rem; }

.turnstile { margin-top: 1rem; }
.turnstile:empty { display: none; }

/* ---------- karcis hasil ---------- */
.tiket {
  position: relative; margin-top: 1.25rem; padding: 1.1rem 1.25rem 1.25rem;
  text-align: center;
  color: var(--tiket-ink); background: var(--tiket);
  border-radius: 1rem;
  -webkit-mask:
    radial-gradient(circle .6rem at 0 50%, #0000 98%, #000) left / 51% 100% no-repeat,
    radial-gradient(circle .6rem at 100% 50%, #0000 98%, #000) right / 51% 100% no-repeat;
  mask:
    radial-gradient(circle .6rem at 0 50%, #0000 98%, #000) left / 51% 100% no-repeat,
    radial-gradient(circle .6rem at 100% 50%, #0000 98%, #000) right / 51% 100% no-repeat;
  animation: naik .35s ease-out;
}
.tiket p { margin: 0; }
.tiket-label { font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.tiket-kode { margin-top: .2rem !important; font-family: var(--mono); font-size: clamp(1.8rem, 9vw, 2.6rem); font-weight: 700; letter-spacing: .12em; overflow-wrap: anywhere; }
.tiket-nama { margin-top: .75rem !important; padding-top: .75rem; border-top: 2px dashed color-mix(in srgb, var(--tiket-ink) 55%, transparent); font-weight: 650; overflow-wrap: anywhere; }
.tiket-meta { font-size: .9rem; }
.tiket-btn {
  display: inline-flex; align-items: center; gap: .4rem; margin-top: .9rem;
  min-height: 2.75rem; padding: 0 1.1rem;
  font: inherit; font-weight: 700; cursor: pointer;
  color: var(--tiket); background: var(--tiket-ink);
  border: 0; border-radius: .8rem;
}
.tiket-btn:focus-visible { outline-color: var(--tiket-ink); }

.jaminan {
  display: flex; gap: .75rem; align-items: center;
  margin: 1.25rem 0 0; padding: .8rem 1rem;
  color: var(--ink); font-size: .9rem;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 55%, var(--line));
  border-radius: 1rem;
}
.jaminan svg { flex: none; color: var(--accent); }
.chk { stroke: var(--on-accent); }

@keyframes naik { from { opacity: 0; transform: translateY(.5rem); } to { opacity: 1; transform: none; } }

/* ---------- layar lebar ---------- */
@media (min-width: 60rem) {
  .page { padding: 1.75rem 2rem 4rem; }
  .grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 3rem; align-items: start; margin-top: 3rem; }
  .art { display: block; width: 14rem; right: 0; top: -2.5rem; }
  h1 { max-width: 30rem; }
  .card { padding: 1.5rem; }
}

@media (max-width: 26rem) {
  .badge { font-size: .78rem; }
  .tabs label { flex-direction: column; gap: .15rem; font-size: .85rem; }
  .kode { font-size: 1.45rem; letter-spacing: .1em; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}