/**
 * BIBO - Rationalist Minimalist Design System
 * 
 * Inspired by Dieter Rams (Braun) & Panic Playdate:
 * - Crisp 1px geometry, zero fuzzy drop shadows
 * - Monospaced typographic grid
 * - High readability, zero Cumulative Layout Shift (CLS)
 * - 15 FPS discrete feel
 */

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400&display=swap');

/* Color Variables */
:root {
  /* Dynamic Viewport & Safe Area Dimensions */
  --sat: env(safe-area-inset-top, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
  --sal: env(safe-area-inset-left, 0px);
  --sar: env(safe-area-inset-right, 0px);

  /* Warm Paper (Default) */
  --bg-primary: #F5F0E8;
  --bg-surface: #EBE4D8;
  --bg-card: #FAF6EF;
  --border-color: #2E3440;
  --text-primary: #2E3440;
  --text-secondary: #766B5E;
  --accent-crt: #C97A3E;
  --accent-clean: #5E81AC;
  --accent-green: #4C7A5D;
  --accent-red: #A34E4E;
  --modal-backdrop: rgba(46, 52, 64, 0.45);

  /* Room Environment Planes */
  --floor-color: #E8E0D2;
  --room-glow: rgba(255, 255, 255, 0.45);

  /* Distinct Personal Stat Colors */
  --stat-hunger: #D46A43; /* Warm Terracotta / Toast */
  --stat-energy: #4E9B66; /* Mint Battery Vitality */
  --stat-clean: #4A86A8;  /* Fresh Water Blue */
  --stat-exp: #D49B35;    /* Amber Cathode Gold */
  
  --font-mono: 'Space Mono', 'Departure Mono', monospace, -apple-system;
}

[data-theme="dark_slate"] {
  --bg-primary: #12151A;
  --bg-surface: #1A2028;
  --bg-card: #202732;
  --border-color: #4C566A;
  --text-primary: #ECEFF4;
  --text-secondary: #8892B0;
  --accent-crt: #E5A95A;
  --accent-clean: #88C0D0;
  --accent-green: #8FBCBB;
  --accent-red: #BF616A;
  --modal-backdrop: rgba(10, 12, 16, 0.75);

  /* Room Environment Planes */
  --floor-color: #0E1116;
  --room-glow: rgba(229, 169, 90, 0.05);

  /* Distinct Personal Stat Colors */
  --stat-hunger: #E06C75; /* Warm Coral */
  --stat-energy: #98C379; /* Electric Green */
  --stat-clean: #56B6C2;  /* Cyan Water */
  --stat-exp: #E5C07B;    /* CRT Amber Gold */
}

/* Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

/* Remove browser number spinner arrows */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type=number] {
  -moz-appearance: textfield;
  appearance: textfield;
}

html {
  background-color: var(--bg-primary);
  height: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  height: 100vh;
  height: 100dvh;
  height: 100svh;
  width: 100vw;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: background-color 0.2s ease, color 0.2s ease;
  padding-top: var(--sat);
  padding-left: var(--sal);
  padding-right: var(--sar);
}

/* Top Navigation HUD - Seamless Room Header */
.top-hud {
  height: 52px;
  padding: 12px 24px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: none;
  background-color: transparent;
  z-index: 30;
}

.hud-left {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0.5px;
  justify-self: start;
}

.status-dot {
  color: var(--accent-green);
}

.hud-center {
  position: relative;
  justify-self: center;
  text-align: center;
}

.hud-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  justify-self: end;
}

.topic-chip {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 6px 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
}

.topic-chip:hover {
  background-color: var(--bg-card);
}

/* Topic Dropdown Popover */
.topic-popover {
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  width: 280px;
  max-width: min(280px, calc(100vw - 24px));
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 8px;
  display: none;
  flex-direction: column;
  gap: 6px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.14);
  z-index: 95;
}

.topic-popover.active {
  display: flex;
}

.topic-search-input {
  width: 100%;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 8px;
  outline: none;
}

.topic-suggestions {
  max-height: 125px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.topic-item {
  padding: 6px 8px;
  cursor: pointer;
  font-size: 11px;
}

.topic-item:hover {
  background-color: var(--bg-primary);
  color: var(--accent-crt);
}

/* Main Viewport Stage - Pure Seamless Space */
.main-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 100%;
  background-color: var(--bg-primary);
}

/* Bibo Interactive Container */
.pet-container {
  position: relative;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: -8px;
}

#biboCanvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  width: 380px;
  height: 380px;
}

/* Speech Bubble (Needs & Interactive Reaction) */
.speech-bubble {
  position: absolute;
  top: -26px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 8px 14px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: normal;
  max-width: min(340px, 86vw);
  text-align: center;
  line-height: 1.35;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.15);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.15s steps(2), transform 0.15s steps(2);
  z-index: 20;
}

.speech-bubble.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.speech-bubble.sleeping {
  top: 36px;
  bottom: auto;
}

.speech-bubble::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px 6px 0;
  border-style: solid;
  border-color: var(--border-color) transparent;
}

/* Timer Monolith */
.timer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.timer-display {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 3px;
  cursor: pointer;
  padding: 2px 14px;
  border: 1px solid transparent;
  transition: border-color 0.1s;
}

.timer-display:hover {
  border-color: var(--border-color);
  background-color: var(--bg-surface);
}

.timer-display.locked {
  cursor: default;
}

.timer-display.locked:hover {
  border-color: transparent;
  background-color: transparent;
}

/* Duration Popover */
.duration-popover {
  position: absolute;
  bottom: calc(100% + 4px);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 8px;
  display: none;
  flex-direction: column;
  gap: 6px;
  z-index: 30;
}

.duration-popover.active {
  display: flex;
}

.preset-buttons {
  display: flex;
  gap: 4px;
}

.preset-btn {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 8px;
  cursor: pointer;
}

.preset-btn:hover {
  background-color: var(--accent-crt);
  color: #FFF;
}

.custom-mins-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.custom-mins-input {
  width: 50px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 4px;
  outline: none;
}

.timer-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.action-btn {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 7px 16px;
  cursor: pointer;
  letter-spacing: 0.5px;
}

.action-btn:hover {
  background-color: var(--bg-card);
}

.action-btn:active {
  transform: translateY(1px);
}

.action-btn.primary {
  background-color: var(--border-color);
  color: var(--bg-primary);
}

.action-btn.primary:hover {
  background-color: var(--accent-crt);
  color: #FFF;
  border-color: var(--accent-crt);
}

/* 4 Centered Needs Micro-Bars inside Bottom HUD */
.needs-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 0;
  width: auto;
}

.need-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.need-track {
  width: 64px;
  height: 10px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  overflow: hidden;
  position: relative;
}

.need-fill {
  height: 100%;
  transition: width 0.2s steps(8);
}

.need-fill.hunger {
  background-color: var(--stat-hunger);
}

.need-fill.clean {
  background-color: var(--stat-clean);
}

.need-fill.energy {
  background-color: var(--stat-energy);
}

.need-fill.exp {
  background-color: var(--stat-exp);
}

/* Bottom HUD - Seamless Room Footer */
.bottom-hud {
  height: 52px;
  padding: 8px 24px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border: none !important;
  border-top: none !important;
  background: transparent !important;
  background-color: transparent !important;
  box-shadow: none !important;
  z-index: 10;
}

.bottom-hud .hud-left {
  justify-self: start;
}

.bottom-hud .needs-grid {
  justify-self: center;
}

.bottom-hud .hud-right {
  justify-self: end;
}

.audio-chip, .pantry-chip, .btn-std {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 6px 12px;
  cursor: pointer;
}

.audio-chip:hover, .pantry-chip:hover, .btn-std:hover {
  background-color: var(--bg-card);
}

/* Floating Dock Card System (Compact Anchored Panels for Pantry & Profile) */
.floating-dock-card {
  position: fixed;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.16), 2px 2px 0px rgba(0, 0, 0, 0.08);
  z-index: 100;
  display: flex;
  flex-direction: column;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.22s ease, visibility 0.22s;
  overflow: hidden;
}

.floating-dock-card.dock-top-right {
  top: 60px;
  right: 24px;
  width: 360px;
  max-width: calc(100vw - 48px);
  transform: translateY(-10px) scale(0.98);
}

.floating-dock-card.dock-bottom-right {
  bottom: 60px;
  right: 24px;
  width: 380px;
  max-width: calc(100vw - 48px);
  max-height: calc(100vh - 120px);
  transform: translateY(10px) scale(0.98);
}

.floating-dock-card.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.floating-dock-card .modal-header {
  padding: 10px 14px;
}

.floating-dock-card .modal-body {
  padding: 14px;
  gap: 12px;
}

/* Modal System (Pop-ups) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-overlay.active {
  display: flex;
}

.modal-card {
  width: 520px;
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-surface);
  cursor: grab;
  user-select: none;
}

.modal-header:active, .modal-header.dragging {
  cursor: grabbing;
}

.modal-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}

.modal-close-btn:hover {
  color: var(--accent-red);
}

.modal-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Form Controls & Inputs */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-weight: 700;
  font-size: 11px;
}

.text-input {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 8px 10px;
  outline: none;
}

.text-input:focus {
  border-color: var(--accent-crt);
}

/* Pantry Items List */
.pantry-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  gap: 12px;
}

.pantry-item-row .action-btn {
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 108px;
  text-align: center;
  padding: 8px 10px;
  font-size: 10px;
}

.pantry-item-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.pantry-item-name {
  font-weight: 700;
  font-size: 11px;
}

.pantry-item-qty {
  color: var(--text-secondary);
  font-size: 10px;
}

/* Quiz Options Grid */
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}

.quiz-opt-btn {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 10px 14px;
  text-align: left;
  cursor: pointer;
}

.quiz-opt-btn:hover {
  background-color: var(--bg-primary);
  border-color: var(--accent-crt);
}

.quiz-opt-btn.correct {
  background-color: var(--accent-green);
  color: #FFF;
  border-color: var(--accent-green);
}

.quiz-opt-btn.wrong {
  background-color: var(--accent-red);
  color: #FFF;
  border-color: var(--accent-red);
}

/* Feedback / Toast Messages */
.toast-msg {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  font-size: 11px;
  font-weight: 700;
  background-color: var(--bg-surface);
}

.toast-msg.warn {
  border-color: var(--accent-red);
  color: var(--accent-red);
}

.toast-msg.success {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* ==================== MOBILE & TABLET RESPONSIVENESS ==================== */

@media (max-width: 768px) {
  html {
    height: 100%;
    width: 100%;
    overflow: hidden;
  }

  body {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    height: 100dvh;
    max-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: 0px;
    padding-left: env(safe-area-inset-left, 0px);
    padding-right: env(safe-area-inset-right, 0px);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  /* Top HUD on mobile */
  .top-hud {
    height: 44px;
    min-height: 44px;
    padding: 4px 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
    box-sizing: border-box;
  }

  .hud-left {
    font-size: 8.5px;
    gap: 4px;
  }

  .topic-chip {
    font-size: 9px;
    padding: 3px 6px;
    max-width: 115px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .hud-right .btn-std {
    font-size: 8.5px;
    padding: 3px 6px;
  }

  .topic-popover {
    width: 250px;
    max-width: calc(100vw - 20px);
    top: calc(100% + 4px);
  }

  .topic-popover .topic-suggestions {
    max-height: 100px;
  }

  /* Stage & Canvas on mobile */
  .main-stage {
    padding: 4px 0;
    flex: 1 1 auto;
    min-height: 0;
    justify-content: space-evenly;
    gap: 4px;
    overflow: hidden;
  }

  .pet-container {
    margin-bottom: -2px;
  }

  #biboCanvas {
    width: min(230px, 58vw);
    height: min(230px, 58vw);
    max-height: 32vh;
  }

  .speech-bubble {
    font-size: 9.5px;
    padding: 6px 12px;
    max-width: min(300px, 86vw);
    top: -20px;
  }

  .speech-bubble.sleeping {
    top: 22px;
    bottom: auto;
  }

  .timer-display {
    font-size: 28px;
    padding: 2px 10px;
    letter-spacing: 2px;
  }

  .timer-actions {
    gap: 8px;
    margin-top: 6px;
  }

  .action-btn, .preset-btn {
    padding: 6px 14px;
    font-size: 10px;
    min-height: 32px;
  }

  /* Bottom HUD on mobile - Ergonomic Retro Control Bar pinned to screen bottom */
  .bottom-hud {
    height: auto;
    min-height: 76px;
    margin-top: auto !important;
    margin-bottom: 0 !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding: 8px 16px calc(12px + var(--sab)) !important;
    display: grid;
    grid-template-areas:
      "needs needs"
      "audio pantry";
    grid-template-columns: 1fr 1fr;
    row-gap: 8px;
    column-gap: 12px;
    width: 100% !important;
    max-width: 100% !important;
    flex-shrink: 0;
    box-sizing: border-box;
    align-items: center;
    border: none !important;
    border-top: none !important;
    background: transparent !important;
    background-color: transparent !important;
    box-shadow: none !important;
  }

  .needs-grid {
    grid-area: needs;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 16px;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    justify-items: center;
  }

  .need-row {
    font-size: 8.5px;
    gap: 5px;
    display: flex;
    align-items: center;
    width: 100%;
    justify-content: space-between;
    max-width: 135px;
  }

  .need-track {
    width: 54px;
    height: 7px;
  }

  .bottom-hud .hud-left {
    grid-area: audio;
    width: 100%;
    display: flex;
    justify-content: flex-start;
    position: relative;
  }

  .audio-chip {
    font-size: 9px;
    padding: 6px 8px;
    width: 100%;
    max-width: 155px;
    min-height: 32px;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  #audioPopover {
    bottom: 40px !important;
    left: 0 !important;
    min-width: 200px;
  }

  .bottom-hud .hud-right {
    grid-area: pantry;
    width: 100%;
    display: flex;
    justify-content: flex-end;
    position: relative;
  }

  .pantry-chip {
    font-size: 9px;
    padding: 6px 8px;
    width: 100%;
    max-width: 155px;
    min-height: 32px;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  /* Modals & Docks on mobile */
  .floating-dock-card {
    max-width: calc(100vw - 16px) !important;
    width: calc(100vw - 16px) !important;
    left: 8px !important;
    right: 8px !important;
    bottom: 8px !important;
    top: auto !important;
    max-height: calc(100dvh - 56px) !important;
  }

  .floating-dock-card.dock-top-right {
    top: 50px !important;
    bottom: auto !important;
  }

  .modal-card {
    max-width: calc(100vw - 16px);
    max-height: 86vh;
    max-height: 86dvh;
    overflow-y: auto;
  }
}

/* Extra small height viewports (landscape mobile or compact screens) */
@media (max-height: 640px) {
  #biboCanvas {
    width: min(160px, 44vw);
    height: min(160px, 44vw);
    max-height: 24vh;
  }
  .timer-display {
    font-size: 22px;
  }
}