/*
 * Tampilan Dapur Sisa: komponen Material 3 dengan tata letak chat.
 *
 *   ┌ top app bar ────────────────────────┐
 *   │ sambutan + contoh (saat masih kosong)│
 *   │            gelembung pesan pengguna ▶│
 *   │ ◀ avatar + kartu resep dari AI       │
 *   ├ composer (menempel di bawah) ────────┤
 *   │ [ tulis bahan...            (kirim)] │
 *   └──────────────────────────────────────┘
 * Kolom percakapan maksimal 800px dan berada di tengah pada layar lebar.
 */

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

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

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font: var(--md-sys-typescale-body-large);
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
p,
ul,
ol {
  margin: 0;
}

button,
textarea {
  font: inherit;
  color: inherit;
}

svg {
  flex-shrink: 0;
}

[hidden] {
  display: none !important;
}

/* Teks yang hanya dibaca pembaca layar (screen reader), tidak terlihat. */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* Indikator fokus keyboard M3 */
:focus-visible {
  outline: 3px solid var(--md-sys-color-secondary);
  outline-offset: 2px;
}

/* ---------- State layer (umpan balik hover/fokus/tekan ala M3) ---------- */
.state-layer {
  position: relative;
  isolation: isolate;
}

.state-layer::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--md-sys-motion-duration-short) linear;
  pointer-events: none;
}

.state-layer:hover::before {
  opacity: var(--md-sys-state-hover-opacity);
}

.state-layer:focus-visible::before {
  opacity: var(--md-sys-state-focus-opacity);
}

.state-layer:active::before {
  opacity: var(--md-sys-state-pressed-opacity);
}

.state-layer:disabled::before {
  opacity: 0;
}

/* ---------- Avatar (logo mangkuk) ---------- */
.avatar {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  flex-shrink: 0;
}

.avatar svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.avatar-besar {
  width: 40px;
  height: 40px;
}

.avatar-besar svg {
  width: 24px;
  height: 24px;
}

/* Saat AI "berpikir", logo berganti menjadi loading indicator M3 Expressive:
   bentuk yang berubah-ubah (morph) sambil berputar. */
.avatar[data-berpikir] svg {
  display: none;
}

.avatar[data-berpikir]::after {
  content: "";
  width: 18px;
  height: 18px;
  background: var(--md-sys-color-primary);
  animation:
    morf 2.4s var(--md-sys-motion-easing-standard) infinite,
    putar 6s linear infinite;
}

@keyframes morf {
  0%,
  100% {
    border-radius: 50%;
  }
  25% {
    border-radius: 32% 68% 62% 38% / 38% 34% 66% 62%;
  }
  50% {
    border-radius: 24%;
  }
  75% {
    border-radius: 62% 38% 34% 66% / 58% 64% 36% 42%;
  }
}

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

/* ---------- Top app bar ---------- */
.top-app-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  height: 64px;
  padding: 0 8px 0 16px;
  background: var(--md-sys-color-surface);
  transition: background-color var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard);
}

.top-app-bar[data-scrolled] {
  background: var(--md-sys-color-surface-container);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
  font: var(--md-sys-typescale-title-large);
  letter-spacing: -0.01em;
  border-radius: var(--md-sys-shape-corner-small);
}

/* ---------- Tombol ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 24px;
  border: 0;
  border-radius: var(--md-sys-shape-corner-full);
  background: transparent;
  font: var(--md-sys-typescale-label-large);
  letter-spacing: 0.01em;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: border-radius var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* M3 Expressive: sudut tombol sedikit mengotak saat ditekan. */
.btn:active:not(:disabled) {
  border-radius: var(--md-sys-shape-corner-medium);
}

.btn-tonal {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.btn-text {
  padding: 0 12px;
  color: var(--md-sys-color-primary);
}

.btn:disabled {
  background: color-mix(in srgb, var(--md-sys-color-on-surface) 12%, transparent);
  color: color-mix(in srgb, var(--md-sys-color-on-surface) 38%, transparent);
  cursor: not-allowed;
}

.btn-text:disabled {
  background: transparent;
}

/* Icon button M3 (40dp) */
.icon-btn {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: var(--md-sys-shape-corner-full);
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
  transition: border-radius var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.icon-btn:active:not(:disabled) {
  border-radius: var(--md-sys-shape-corner-medium);
}

.icon-btn-filled {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

.icon-btn-tonal {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.icon-btn:disabled {
  background: color-mix(in srgb, var(--md-sys-color-on-surface) 12%, transparent);
  color: color-mix(in srgb, var(--md-sys-color-on-surface) 38%, transparent);
  cursor: not-allowed;
}

/* ---------- Area percakapan ---------- */
.chat {
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 8px 16px 24px;
}

@media (min-width: 600px) {
  .chat {
    padding: 16px 24px 32px;
  }

  .top-app-bar {
    padding: 0 16px 0 24px;
  }
}

/* Sambutan: berada di tengah layar selama belum ada pesan. */
.sambutan {
  display: grid;
  gap: 16px;
  justify-items: start;
  margin-block: auto;
  padding: 24px 0;
}

.avatar-sambutan {
  width: 56px;
  height: 56px;
  margin-bottom: 8px;
}

.avatar-sambutan svg {
  width: 32px;
  height: 32px;
}

.sambutan h1 {
  font: var(--md-sys-typescale-display-small);
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.sambutan > p {
  max-width: 40ch;
  color: var(--md-sys-color-on-surface-variant);
}

.sambutan h2 {
  margin-top: 16px;
  font: var(--md-sys-typescale-title-small);
  color: var(--md-sys-color-on-surface-variant);
}

@media (min-width: 600px) {
  .sambutan h1 {
    font: var(--md-sys-typescale-display-medium);
    letter-spacing: -0.035em;
  }
}

/* Chip contoh (suggestion chip) */
.chip-set {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  list-style: none;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 16px;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-small);
  background: transparent;
  color: var(--md-sys-color-on-surface-variant);
  font: var(--md-sys-typescale-label-large);
  text-align: left;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

/* ---------- Pesan ---------- */
.daftar-pesan {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.pesan {
  animation: masuk var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized-decelerate);
}

@keyframes masuk {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

/* Gelembung pengguna: di kanan, sudut kanan-bawah lebih tajam (penanda pengirim). */
.pesan-pengguna {
  align-self: flex-end;
  max-width: min(85%, 560px);
  padding: 10px 16px;
  border-radius: 20px 20px 4px 20px;
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* Pesan AI: avatar di kiri, isi di kanan. */
.pesan-ai {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.pesan-badan {
  display: grid;
  gap: 12px;
  min-width: 0;
}

/* Status "Sedang meracik ide..." dengan kilau bergerak. */
.pesan-status {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  align-items: baseline;
  min-height: 32px;
  padding-top: 6px;
  color: var(--md-sys-color-on-surface-variant);
  font: var(--md-sys-typescale-body-medium);
}

.kilau {
  background: linear-gradient(
      90deg,
      var(--md-sys-color-on-surface-variant) 0%,
      var(--md-sys-color-on-surface-variant) 40%,
      var(--md-sys-color-primary) 50%,
      var(--md-sys-color-on-surface-variant) 60%,
      var(--md-sys-color-on-surface-variant) 100%
    )
    0 0 / 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: kilau 2.4s linear infinite;
}

@keyframes kilau {
  from {
    background-position: 100% 0;
  }
  to {
    background-position: 0 0;
  }
}

.pesan-status .detik {
  font: var(--md-sys-typescale-body-small);
  font-variant-numeric: tabular-nums;
}

/* ---------- Kartu resep ---------- */
.resep {
  display: grid;
  gap: 24px;
  padding: 20px;
  border-radius: var(--md-sys-shape-corner-extra-large);
  background: var(--md-sys-color-surface-container-low);
}

/* Kartu tidak ditampilkan selama belum ada isi. */
.resep:not(:has(> :not([hidden]))) {
  display: none;
}

@media (min-width: 600px) {
  .resep {
    padding: 28px 32px;
  }
}

.resep-judul {
  font: var(--md-sys-typescale-headline-small);
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.resep-ringkas {
  margin-top: -16px;
  color: var(--md-sys-color-on-surface-variant);
  font: var(--md-sys-typescale-body-medium);
  animation: masuk var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized-decelerate);
}

.resep h3 {
  margin-bottom: 12px;
  font: var(--md-sys-typescale-title-medium);
}

/* Item baru muncul dengan pudar + geser sedikit. */
.baru {
  animation: muncul-item 260ms var(--md-sys-motion-easing-emphasized-decelerate);
}

@keyframes muncul-item {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
}

/* Daftar bahan: bahan yang dimiliki pengguna ditandai kuning kunyit. */
.daftar-bahan {
  display: grid;
  gap: 4px;
  padding: 0;
  list-style: none;
}

@media (min-width: 600px) {
  .daftar-bahan {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 8px;
  }
}

.daftar-bahan li {
  display: flex;
  gap: 10px;
  align-items: center;
  min-height: 40px;
  padding: 6px 12px 6px 8px;
  border-radius: var(--md-sys-shape-corner-medium);
  transition:
    background-color var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard),
    color var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard);
}

.daftar-bahan .tanda {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background-color var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard);
}

/* Penanda biasa: titik kecil (bukan kotak centang, karena tidak bisa diklik). */
.daftar-bahan .tanda::before {
  content: "";
  grid-area: 1 / 1;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--md-sys-color-outline);
}

.daftar-bahan .tanda svg {
  grid-area: 1 / 1;
  width: 16px;
  height: 16px;
  fill: currentColor;
  transform: scale(0);
  transition: transform var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized-decelerate);
}

.daftar-bahan li[data-punya] {
  background: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
}

.daftar-bahan li[data-punya] .tanda {
  background: var(--md-sys-color-tertiary);
  color: var(--md-sys-color-on-tertiary);
}

.daftar-bahan li[data-punya] .tanda::before {
  opacity: 0;
}

.daftar-bahan li[data-punya] .tanda svg {
  transform: scale(1);
}

/* Langkah: memang berurutan, jadi diberi nomor. */
.daftar-langkah {
  display: grid;
  gap: 14px;
  padding: 0;
  list-style: none;
  counter-reset: langkah;
}

.daftar-langkah li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  counter-increment: langkah;
}

.daftar-langkah li::before {
  content: counter(langkah);
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  font: var(--md-sys-typescale-label-medium);
  font-variant-numeric: tabular-nums;
}

.daftar-langkah .teks {
  padding-top: 2px;
}

.resep-mentah {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* Kursor ketik di ujung teks yang sedang ditulis AI. */
.mengetik::after {
  content: "";
  display: inline-block;
  width: 0.45em;
  height: 1.05em;
  margin-left: 3px;
  vertical-align: text-bottom;
  border-radius: 2px;
  background: var(--md-sys-color-primary);
  animation: kedip 1s steps(1) infinite;
}

@keyframes kedip {
  50% {
    opacity: 0;
  }
}

/* ---------- Aksi di bawah jawaban ---------- */
.aksi {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  animation: masuk var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized-decelerate);
}

.aksi .catatan {
  margin-left: auto;
  color: var(--md-sys-color-on-surface-variant);
  font: var(--md-sys-typescale-body-small);
}

/* ---------- Error di dalam percakapan ---------- */
.galat-kotak {
  display: flex;
  gap: 12px;
  padding: 16px;
  border-radius: var(--md-sys-shape-corner-large);
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
  font: var(--md-sys-typescale-body-medium);
}

.galat-kotak svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.galat-kotak strong {
  display: block;
  margin-bottom: 2px;
  font: var(--md-sys-typescale-title-small);
}

/* ---------- Composer (kotak input di bawah) ---------- */
.composer {
  position: sticky;
  bottom: 0;
  z-index: 5;
  padding: 8px 16px max(8px, env(safe-area-inset-bottom));
  background: var(--md-sys-color-surface);
}

.composer-isi {
  display: grid;
  gap: 6px;
  max-width: 768px;
  margin: 0 auto;
}

.kotak-input {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  padding: 8px;
  padding-left: 20px;
  border-radius: var(--md-sys-shape-corner-extra-large);
  background: var(--md-sys-color-surface-container-high);
  outline: 2px solid transparent;
  outline-offset: -2px;
  transition: outline-color var(--md-sys-motion-duration-short) linear;
}

.kotak-input:focus-within {
  outline-color: var(--md-sys-color-primary);
}

.kotak-input[data-galat] {
  outline-color: var(--md-sys-color-error);
}

.kotak-input textarea {
  flex: 1;
  min-width: 0;
  max-height: 160px;
  padding: 8px 0;
  border: 0;
  background: transparent;
  resize: none;
  outline: none;
  caret-color: var(--md-sys-color-primary);
}

.kotak-input textarea::placeholder {
  color: var(--md-sys-color-on-surface-variant);
}

.composer-bawah {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 0 20px;
  color: var(--md-sys-color-on-surface-variant);
  font: var(--md-sys-typescale-body-small);
}

.composer-bawah[data-galat] .bantuan {
  color: var(--md-sys-color-error);
}

.composer-bawah .hitung {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* Banner status AI (di atas kotak input) */
.banner {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 16px;
  border-radius: var(--md-sys-shape-corner-large);
  background: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
  font: var(--md-sys-typescale-body-medium);
}

.banner svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* ---------- Snackbar ---------- */
.snackbar {
  position: fixed;
  left: 50%;
  bottom: 120px;
  z-index: 20;
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100vw - 32px);
  padding: 14px 16px;
  border-radius: var(--md-sys-shape-corner-extra-small);
  background: var(--md-sys-color-inverse-surface);
  color: var(--md-sys-color-inverse-on-surface);
  font: var(--md-sys-typescale-body-medium);
  box-shadow: var(--md-sys-elevation-3);
}

/* ---------- Kurangi gerak jika pengguna memintanya di pengaturan perangkat ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .avatar[data-berpikir]::after {
    border-radius: 24%;
  }

  .kilau {
    color: var(--md-sys-color-on-surface-variant);
    background: none;
  }
}