@import './variables.css';
@import './animations.css';

/* iOS Reset & Global Viewport Setup */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  font-family: var(--font-sans);
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-mid) 50%, var(--bg-gradient-end) 100%);
  color: var(--text-main);
  overscroll-behavior: none;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
}

/* Background Particle Canvas */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  pointer-events: none;
  z-index: 1;
}

/* Floating Audio Control Button */
.audio-btn {
  position: fixed;
  top: calc(var(--sat) + 12px);
  right: calc(var(--sar) + 16px);
  z-index: 50;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
}

.audio-btn:active {
  transform: scale(0.92);
}

.audio-btn.muted {
  opacity: 0.65;
}

/* App Container */
#app-container {
  position: relative;
  width: 100%;
  height: 100%;
  max-width: 440px;
  margin: 0 auto;
  padding: calc(var(--sat) + 16px) calc(var(--sar) + 20px) calc(var(--sab) + 16px) calc(var(--sal) + 20px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 10;
}

/* Screen States */
.screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: calc(var(--sat) + 20px) 24px calc(var(--sab) + 24px) 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.screen.hidden {
  opacity: 0 !important;
  pointer-events: none !important;
  transform: scale(0.95) !important;
  visibility: hidden !important;
}

/* ==========================================================================
   0. ENVELOPE ENTRY SCREEN
   ========================================================================== */
#envelope-screen {
  text-align: center;
  cursor: pointer;
  z-index: 20;
}

.envelope-card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 44px 32px 36px 32px;
  box-shadow: var(--glass-shadow), var(--glass-glow);
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 350px;
  width: 100%;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.envelope-card.opening {
  transform: scale(1.1) translateY(-20px);
  opacity: 0;
}

.envelope-heart-seal {
  font-size: 64px;
  margin-bottom: 20px;
  filter: drop-shadow(0 6px 12px rgba(255, 77, 109, 0.35));
  animation: pulseGlow 2.5s ease-in-out infinite;
}

.envelope-recipient {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 700;
  color: var(--color-secondary);
  line-height: 1.2;
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   1. INTRO / WRITTEN LETTER SCREEN
   ========================================================================== */
#intro-screen {
  text-align: center;
  cursor: pointer;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.intro-letter-card {
  background: rgba(255, 253, 250, 0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1.5px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  box-shadow: 0 16px 40px rgba(199, 44, 88, 0.14), var(--glass-glow);
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 360px;
  width: 100%;
}

.letter-greeting {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-secondary);
  margin-top: 4px;
  margin-bottom: 12px;
  width: 100%;
  text-align: left;
}

.letter-text-box {
  width: 100%;
  text-align: left;
  margin-bottom: 20px;
}

.letter-paragraph {
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text-main);
  margin-bottom: 12px;
}

.letter-paragraph:last-child {
  margin-bottom: 0;
}

.action-prompt {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.9);
  padding: 10px 20px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(255, 77, 109, 0.18);
}

/* ==========================================================================
   2. STAGE / FLOWER COLLECTION SCREEN
   ========================================================================== */
#stage-screen {
  justify-content: flex-start;
  padding-bottom: 110px; /* Space for bottom dock */
}

.stage-header {
  width: 100%;
  max-width: 340px;
  margin-top: 10px;
  margin-bottom: 16px;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.progress-bar-bg {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-full);
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.08);
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary));
  border-radius: var(--radius-full);
  transition: width 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Flower Collection Card */
.flower-card {
  width: 100%;
  max-width: 350px;
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px 20px 20px;
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.3s ease;
}

.flower-card.fading-out {
  opacity: 0.3;
  transform: scale(0.92);
}

.flower-display {
  width: 180px;
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}

.flower-vector {
  filter: drop-shadow(0 10px 20px rgba(0,0,0,0.12));
}

.flower-name {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.flower-meaning {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--color-primary-dark);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.statement-box {
  background: rgba(255, 255, 255, 0.55);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 16px;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.7);
}

.flower-statement {
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.45;
  color: var(--text-main);
  font-style: italic;
}

.tap-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.9);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 10px rgba(255, 77, 109, 0.15);
}

/* ==========================================================================
   3. BOTTOM BOUQUET DOCK
   ========================================================================== */
#bouquet-dock {
  position: fixed;
  bottom: calc(var(--sab) + 12px);
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 36px);
  max-width: 380px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 8px 14px;
  box-shadow: var(--glass-shadow);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 40;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#bouquet-dock.hidden {
  opacity: 0;
  transform: translate(-50%, 20px);
  pointer-events: none;
}

.dock-slots {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 6px;
}

.dock-slot {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.6);
  border: 1.5px dashed rgba(255, 77, 109, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}

.dock-slot.docked {
  background: #fff;
  border-style: solid;
  border-color: var(--color-primary-light);
  box-shadow: 0 2px 8px rgba(255, 77, 109, 0.25);
}

.dock-slot-placeholder {
  font-size: 11px;
  font-weight: 700;
  color: rgba(128, 91, 101, 0.5);
}

/* ==========================================================================
   4. FINALE & GRAND REVEAL SCREEN
   ========================================================================== */
#finale-screen {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  justify-content: flex-start;
  padding-top: calc(var(--sat) + 16px);
  padding-bottom: calc(var(--sab) + 30px);
}

.finale-content {
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.finale-heading {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--color-secondary);
  background: transparent;
  margin-top: 6px;
  margin-bottom: 20px;
  display: block;
  text-align: center;
  letter-spacing: 0.5px;
}

.bouquet-showcase {
  width: 280px;
  height: 220px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 24px;
  margin-bottom: 20px;
}

.bouquet-arrangement-wrapper {
  position: relative;
  width: 240px;
  height: 220px;
  animation: ribbonUnfurl 1s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.bouquet-flower-item {
  position: absolute;
  top: 15px;
  left: 50px;
  cursor: pointer;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.bouquet-flower-item:active {
  transform: scale(1.1) !important;
  filter: drop-shadow(0 0 12px rgba(255, 117, 143, 0.8));
}

.bouquet-ribbon {
  position: absolute;
  bottom: 0;
  left: 50px;
  z-index: 30;
  pointer-events: none;
  animation: ribbonUnfurl 1.2s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.inspect-hint {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 14px;
}

/* Love Letter Card */
.love-letter-card {
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: var(--glass-shadow), var(--glass-glow);
  text-align: center;
  margin-bottom: 20px;
}

.letter-body {
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-main);
  margin-bottom: 18px;
  white-space: pre-line;
}

.letter-signoff {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-secondary);
  font-style: italic;
}

.replay-button {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px rgba(255, 77, 109, 0.35);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.replay-button:active {
  transform: scale(0.95);
}

/* ==========================================================================
   5. DETAIL MODAL
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-card {
  position: relative;
  width: 100%;
  max-width: 320px;
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  animation: fadeInCard 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: rgba(0, 0, 0, 0.06);
  border: none;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}