/* Halaman login MidasGame: biru malam + emas (#c9a86a), kartu kaca gelap berbingkai emas. Mobile-first, font sistem saja,
   tanpa gaya inline (CSP style-src 'self'). */
:root {
  --emas: #c9a86a;
  --emas-terang: #f0d79c;
  --emas-pucat: #f6e3b4;
  --teks: #ece8df;
  --teks-redup: #a7a39a;
  --label: #cdb98c;
  --galat: #ffb3ae;
  --kuning: #f5b83d;
  --dasar: #050a14;
  --isian: rgba(4, 9, 18, 0.66);
  --garis-isian: rgba(201, 168, 106, 0.3);
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--dasar);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  color: var(--teks);
  background: var(--dasar);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}

/* ---------- Latar ---------- */
.latar {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(90% 60% at 50% 100%, rgba(201, 168, 106, 0.07), transparent 70%),
    radial-gradient(130% 95% at 50% 12%, #142a52 0%, #0c1834 34%, #070e1e 64%, #03060d 100%);
}

/* Lantai isometrik: belah ketupat emas tipis (lantai.svg), kuat di bawah dan memudar ke atas dan ke samping. */
.latar-lantai {
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: 0;
  height: 78%;
  background: url("lantai.svg") center bottom / 112px auto repeat;
  opacity: 0.5;
  -webkit-mask-image: radial-gradient(75% 105% at 50% 100%, #000 18%, rgba(0, 0, 0, 0.45) 52%, transparent 82%);
  mask-image: radial-gradient(75% 105% at 50% 100%, #000 18%, rgba(0, 0, 0, 0.45) 52%, transparent 82%);
}

/* Kilau pelan menyapu lantai (hanya transform, murah); mati bila pengguna meminta gerak dikurangi. */
.latar-kilau {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 46%;
  background: linear-gradient(100deg, transparent 0%, rgba(240, 215, 156, 0.07) 45%, rgba(240, 215, 156, 0.11) 50%, rgba(240, 215, 156, 0.07) 55%, transparent 100%);
  transform: translate3d(-120%, 0, 0) skewX(-14deg);
  animation: kilau 18s ease-in-out 1.2s infinite;
  will-change: transform;
}

@keyframes kilau {
  0% { transform: translate3d(-120%, 0, 0) skewX(-14deg); }
  55%, 100% { transform: translate3d(330%, 0, 0) skewX(-14deg); }
}

/* Pendar hangat di belakang kartu. */
.latar-pendar {
  position: absolute;
  inset: 0;
  background: radial-gradient(42% 32% at 50% 46%, rgba(201, 168, 106, 0.16), rgba(201, 168, 106, 0.05) 55%, transparent 75%);
}

.latar-vignet {
  position: absolute;
  inset: 0;
  background: radial-gradient(125% 115% at 50% 45%, transparent 52%, rgba(0, 0, 0, 0.62) 100%);
}

/* ---------- Tata letak ---------- */
.halaman {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding:
    max(16px, env(safe-area-inset-top))
    max(16px, env(safe-area-inset-right))
    max(16px, env(safe-area-inset-bottom))
    max(16px, env(safe-area-inset-left));
}

/* ---------- Kartu ---------- */
.kartu {
  position: relative;
  width: 100%;
  max-width: 412px;
  padding: 30px 22px 20px;
  border-radius: 18px;
  border: 1px solid rgba(201, 168, 106, 0.55);
  background:
    radial-gradient(120% 50% at 50% 0%, rgba(201, 168, 106, 0.15), transparent 62%),
    linear-gradient(180deg, rgba(24, 21, 14, 0.88), rgba(10, 17, 32, 0.9) 48%, rgba(6, 11, 22, 0.94));
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.62),
    0 0 0 1px rgba(0, 0, 0, 0.35),
    inset 0 0 0 1px rgba(201, 168, 106, 0.1),
    0 0 42px rgba(201, 168, 106, 0.1);
  animation: muncul 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .kartu {
    -webkit-backdrop-filter: blur(14px) saturate(125%);
    backdrop-filter: blur(14px) saturate(125%);
  }
}

/* Garis cahaya emas di tepi atas kartu. */
.kartu::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 16%;
  right: 16%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--emas-terang), transparent);
}

@keyframes muncul {
  from { opacity: 0; transform: translate3d(0, 14px, 0) scale(0.985); }
  to { opacity: 1; transform: none; }
}

.lambang {
  width: 64px;
  height: 64px;
  margin: 0 auto 14px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--emas-terang);
  background: radial-gradient(circle at 50% 32%, rgba(201, 168, 106, 0.3), rgba(201, 168, 106, 0.06) 72%);
  border: 1px solid rgba(201, 168, 106, 0.65);
  box-shadow:
    0 0 0 5px rgba(201, 168, 106, 0.07),
    0 0 28px rgba(201, 168, 106, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
}

.lambang svg {
  width: 30px;
  height: 30px;
  filter: drop-shadow(0 1px 6px rgba(201, 168, 106, 0.45));
}

.judul {
  margin: 0;
  padding-left: 0.3em; /* imbangi letter-spacing huruf terakhir supaya benar-benar di tengah */
  text-align: center;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--emas);
  background: linear-gradient(180deg, var(--emas-pucat) 0%, var(--emas) 58%, #a8823f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subjudul {
  margin: 6px 0 0;
  text-align: center;
  color: var(--teks-redup);
  font-size: 14px;
}

/* Garis hias emas dengan belah ketupat kecil di tengah. */
.hiasan {
  position: relative;
  height: 1px;
  margin: 20px 8px 22px;
  background: linear-gradient(90deg, transparent, rgba(201, 168, 106, 0.55) 30%, rgba(201, 168, 106, 0.55) 70%, transparent);
}

.hiasan::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 7px;
  height: 7px;
  background: var(--dasar);
  border: 1px solid var(--emas);
  transform: translate(-50%, -50%) rotate(45deg);
  box-shadow: 0 0 10px rgba(201, 168, 106, 0.5);
}

/* ---------- Form ---------- */
.form {
  display: grid;
  gap: 16px;
}

.galat {
  margin: 0;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--galat);
  background: rgba(229, 72, 77, 0.12);
  border: 1px solid rgba(229, 72, 77, 0.42);
}

.galat::before {
  content: "";
  flex: none;
  align-self: stretch;
  width: 3px;
  border-radius: 2px;
  background: #e5484d;
}

.galat:empty { display: none; }

.bidang {
  display: grid;
  gap: 7px;
}

.bidang > label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--label);
}

.kotak-isian { position: relative; }

.kotak-isian input {
  display: block;
  width: 100%;
  height: 50px;
  margin: 0;
  padding: 0 14px 0 44px;
  font: inherit;
  font-size: 16px; /* 16px: iOS tidak memperbesar halaman saat isian disentuh */
  color: var(--teks);
  caret-color: var(--emas);
  background: var(--isian);
  border: 1px solid var(--garis-isian);
  border-radius: 12px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.kotak-isian input#sandi { padding-right: 52px; }

.kotak-isian input:hover { border-color: rgba(201, 168, 106, 0.5); }

.kotak-isian input:focus {
  border-color: var(--emas);
  background-color: rgba(6, 12, 24, 0.82);
  box-shadow: 0 0 0 3px rgba(201, 168, 106, 0.24);
}

.kotak-isian input[aria-invalid="true"] { border-color: rgba(240, 122, 125, 0.75); }

/* Isian otomatis peramban (Chrome/Safari) tetap gelap, tidak kuning/biru. */
.kotak-isian input:-webkit-autofill,
.kotak-isian input:-webkit-autofill:hover {
  -webkit-text-fill-color: var(--teks);
  -webkit-box-shadow: 0 0 0 1000px #0a1222 inset;
  box-shadow: 0 0 0 1000px #0a1222 inset;
  transition: background-color 9999s ease 0s;
}

.kotak-isian input:-webkit-autofill:focus {
  -webkit-box-shadow: 0 0 0 1000px #0a1222 inset, 0 0 0 3px rgba(201, 168, 106, 0.24);
  box-shadow: 0 0 0 1000px #0a1222 inset, 0 0 0 3px rgba(201, 168, 106, 0.24);
}

.ikon-isian {
  position: absolute;
  left: 14px;
  top: 50%;
  width: 18px;
  height: 18px;
  transform: translateY(-50%);
  color: rgba(201, 168, 106, 0.78);
  pointer-events: none;
}

.lihat-sandi {
  position: absolute;
  right: 3px;
  top: 50%;
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  display: grid;
  place-items: center;
  transform: translateY(-50%);
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--teks-redup);
  cursor: pointer;
}

.lihat-sandi:hover { color: var(--emas); }

.lihat-sandi:focus-visible {
  outline: 2px solid var(--emas);
  outline-offset: -4px;
  color: var(--emas);
}

.lihat-sandi svg {
  width: 20px;
  height: 20px;
}

.lihat-sandi .ikon-tutup,
.lihat-sandi[aria-pressed="true"] .ikon-buka { display: none; }

.lihat-sandi[aria-pressed="true"] .ikon-tutup { display: block; }

.petunjuk {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--kuning);
}

/* Kotak centang emas (gambar centang.svg); 44px tinggi baris untuk jari. */
.ingat {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  margin-top: -4px;
  cursor: pointer;
  font-size: 14px;
  color: var(--teks);
  -webkit-user-select: none;
  user-select: none;
}

.ingat input {
  flex: none;
  width: 22px;
  height: 22px;
  margin: 0;
  border-radius: 6px;
  border: 1px solid rgba(201, 168, 106, 0.6);
  background: var(--isian) center / 14px 14px no-repeat;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.ingat:hover input { border-color: var(--emas); }

.ingat input:checked {
  border-color: var(--emas-terang);
  background-color: var(--emas);
  background-image: url("centang.svg");
  box-shadow: 0 0 12px rgba(201, 168, 106, 0.35);
}

.ingat input:focus-visible {
  outline: 2px solid var(--emas);
  outline-offset: 3px;
}

/* ---------- Tombol ---------- */
.tombol-masuk {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 52px;
  margin: 2px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font: inherit;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: #1a1205;
  cursor: pointer;
  border: 1px solid var(--emas-terang);
  border-radius: 12px;
  background: linear-gradient(180deg, #ecd08f 0%, #c29a52 55%, #a37a37 100%);
  box-shadow: 0 10px 26px rgba(201, 168, 106, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.45);
  transition: filter 0.15s ease, transform 0.08s ease, box-shadow 0.15s ease;
}

/* Kilau melintas saat disorot. */
.tombol-masuk::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.7s ease;
  pointer-events: none;
}

.tombol-masuk:hover { filter: brightness(1.06); box-shadow: 0 12px 30px rgba(201, 168, 106, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.5); }
.tombol-masuk:hover::after { transform: translateX(120%); }
.tombol-masuk:active { transform: translateY(1px) scale(0.995); }

.tombol-masuk:focus-visible {
  outline: 2px solid var(--emas-pucat);
  outline-offset: 3px;
}

.tombol-masuk.sibuk {
  cursor: progress;
  filter: saturate(0.85) brightness(0.97);
}

.pemutar {
  display: none;
  flex: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(26, 18, 5, 0.28);
  border-top-color: #1a1205;
  animation: putar 0.8s linear infinite;
}

.tombol-masuk.sibuk .pemutar { display: block; }

@keyframes putar {
  to { transform: rotate(360deg); }
}

/* ---------- Kaki ---------- */
.kaki {
  margin: 22px 0 0;
  padding-top: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-top: 1px solid rgba(201, 168, 106, 0.16);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(201, 168, 106, 0.75);
}

.kaki svg {
  flex: none;
  width: 14px;
  height: 14px;
}

/* ---------- Ukuran layar ---------- */
@media (max-width: 359px) {
  .kartu { padding: 26px 16px 18px; }
  .judul { font-size: 17px; letter-spacing: 0.24em; padding-left: 0.24em; }
  .kaki { letter-spacing: 0.14em; }
}

@media (min-width: 480px) {
  .kartu { padding: 38px 36px 24px; }
  .judul { font-size: 21px; }
  .latar-lantai { background-size: 132px auto; }
}

/* Layar pendek (HP mendatar, keyboard terbuka): rapatkan bagian atas. */
@media (max-height: 620px) {
  .kartu { padding-top: 22px; }
  .lambang { width: 50px; height: 50px; margin-bottom: 10px; }
  .lambang svg { width: 24px; height: 24px; }
  .hiasan { margin: 14px 8px 16px; }
  .form { gap: 12px; }
  .kaki { margin-top: 16px; padding-top: 12px; }
}

/* ---------- Aksesibilitas ---------- */
@media (prefers-reduced-motion: reduce) {
  .latar-kilau { display: none; }
  .kartu { animation: none; }
  .tombol-masuk::after { display: none; }
  .pemutar { animation-duration: 2.4s; }
  .kotak-isian input, .ingat input, .tombol-masuk { transition: none; }
}

@media (forced-colors: active) {
  .judul { -webkit-text-fill-color: currentColor; background: none; }
  .ingat input { -webkit-appearance: checkbox; appearance: auto; }
  .galat::before { background: CanvasText; }
}