/* ===== CSS Variables / Themes ===== */
:root {
  --bg-primary: #fdf6f0;
  --bg-card: #ffffff;
  --accent: #d46a7a;
  --accent-light: #e8909e;
  --accent-glow: rgba(212, 106, 122, 0.15);
  --text-primary: #5a3e3e;
  --text-secondary: #8c6b6b;
  --text-muted: #b89a9a;
  --heart-color: #d46a7a;
  --btn-yes-bg: #d46a7a;
  --btn-yes-hover: #c25a6a;
  --btn-no-bg: #d5c8c1;
  --btn-no-text: #7a6a64;
  --border-color: rgba(180, 140, 140, 0.2);
  --card-shadow: rgba(180, 140, 140, 0.12);
  --input-bg: #faf5f2;
}

[data-theme="rose"] {
  --bg-primary: #fdf0f4;
  --bg-card: #fff8fa;
  --accent: #c97b8b;
  --accent-light: #dda0ad;
  --accent-glow: rgba(201, 123, 139, 0.15);
  --text-primary: #5a3344;
  --text-secondary: #8c5a6b;
  --text-muted: #b8909a;
  --heart-color: #c97b8b;
  --btn-yes-bg: #c97b8b;
  --btn-yes-hover: #b86a7a;
  --btn-no-bg: #d5c1c8;
  --border-color: rgba(180, 120, 140, 0.2);
  --input-bg: #faf2f5;
}

[data-theme="sunset"] {
  --bg-primary: #fdf5ee;
  --bg-card: #fffaf5;
  --accent: #c98a6b;
  --accent-light: #dda98a;
  --accent-glow: rgba(201, 138, 107, 0.15);
  --text-primary: #5a4433;
  --text-secondary: #8c6b55;
  --text-muted: #b89a85;
  --heart-color: #c98a6b;
  --btn-yes-bg: #c98a6b;
  --btn-yes-hover: #b87a5b;
  --btn-no-bg: #d5cbc1;
  --border-color: rgba(180, 140, 110, 0.2);
  --input-bg: #faf5ee;
}

[data-theme="royal"] {
  --bg-primary: #f5f0fa;
  --bg-card: #faf7ff;
  --accent: #9e7bb8;
  --accent-light: #b99ad0;
  --accent-glow: rgba(158, 123, 184, 0.15);
  --text-primary: #44335a;
  --text-secondary: #6b558c;
  --text-muted: #9a85b8;
  --heart-color: #9e7bb8;
  --btn-yes-bg: #9e7bb8;
  --btn-yes-hover: #8d6aa7;
  --btn-no-bg: #cbc1d5;
  --border-color: rgba(140, 120, 180, 0.2);
  --input-bg: #f5f0fa;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Special Elite', cursive;
  font-size: 1rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Subtle paper texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

.hidden {
  display: none !important;
}

/* ===== Floating Hearts Background ===== */
.hearts-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.floating-heart {
  position: absolute;
  bottom: -20px;
  opacity: 0;
  animation: floatUp linear forwards;
  color: var(--heart-color);
  font-size: 16px;
  user-select: none;
}

@keyframes floatUp {
  0% {
    opacity: 0;
    transform: translateY(0) rotate(0deg) scale(0.5);
  }
  10% {
    opacity: 0.25;
  }
  90% {
    opacity: 0.1;
  }
  100% {
    opacity: 0;
    transform: translateY(-100vh) rotate(360deg) scale(1);
  }
}

/* ===== Pages ===== */
.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px 20px;
}

/* ===== Creator Page ===== */
.creator-container {
  max-width: 460px;
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px 32px;
  box-shadow: 0 4px 24px var(--card-shadow);
}

.creator-title {
  font-family: 'Special Elite', cursive;
  font-size: 2.2rem;
  text-align: center;
  color: var(--accent);
  margin-bottom: 6px;
}

.creator-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
  font-weight: 400;
  line-height: 1.5;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--text-primary);
  font-family: 'Special Elite', cursive;
  font-size: 0.95rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-light);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

/* Label Row */
.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.label-row label {
  margin-bottom: 0;
}

/* Refresh Button */
.btn-refresh {
  font-size: 1rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: color 0.3s, border-color 0.3s, background 0.3s, transform 0.3s;
}

.btn-refresh:hover {
  color: var(--accent);
  border-color: var(--accent-light);
  background: var(--accent-glow);
  transform: rotate(180deg);
}

/* Message Suggestions */
.suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.suggestion-chip {
  font-family: 'Special Elite', cursive;
  font-size: 0.78rem;
  padding: 6px 12px;
  border: 1px dashed var(--border-color);
  border-radius: 20px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s, color 0.3s;
  text-align: left;
  line-height: 1.4;
}

.suggestion-chip:hover {
  border-color: var(--accent-light);
  background: var(--accent-glow);
  color: var(--text-primary);
}

.suggestion-chip.active {
  border-color: var(--accent);
  border-style: solid;
  background: var(--accent-glow);
  color: var(--accent);
}

/* Theme Picker */
.theme-picker {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.theme-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
  transition: border-color 0.3s, transform 0.2s, background 0.3s;
}

.theme-option:hover {
  transform: translateY(-2px);
  background: var(--accent-glow);
}

.theme-option.selected {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.theme-preview {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.06);
}

.theme-preview.classic { background: linear-gradient(135deg, #d4a0a0, #d4717a); }
.theme-preview.rose { background: linear-gradient(135deg, #dda0ad, #c97b8b); }
.theme-preview.sunset { background: linear-gradient(135deg, #ddb89a, #c98a6b); }
.theme-preview.royal { background: linear-gradient(135deg, #c9a0d5, #9e7bb8); }

.theme-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Generate Button */
.btn-generate {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-family: 'Special Elite', cursive;
  font-size: 1rem;
  font-weight: 400;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.3s, background 0.3s;
  margin-top: 10px;
}

.btn-generate:hover {
  transform: translateY(-1px);
  background: var(--btn-yes-hover);
  box-shadow: 0 6px 20px var(--accent-glow);
}

/* Link Result */
.link-result {
  margin-top: 28px;
  text-align: center;
}

.link-result > p:first-child {
  font-weight: 400;
  color: var(--accent);
  margin-bottom: 12px;
  font-size: 1rem;
}

.link-box {
  display: flex;
  gap: 8px;
}

.link-box input {
  flex: 1;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--text-primary);
  font-family: 'Special Elite', cursive;
  font-size: 1rem;
}

.btn-copy {
  padding: 12px 20px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-family: 'Special Elite', cursive;
  font-weight: 400;
  cursor: pointer;
  transition: background 0.3s;
  white-space: nowrap;
  font-size: 0.9rem;
}

.btn-copy:hover {
  background: var(--btn-yes-hover);
}

.link-hint {
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 300;
}

/* ===== Valentine Page ===== */
.valentine-container {
  max-width: 460px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.card {
  width: 100%;
  animation: cardEntrance 1s ease-out;
}

@keyframes cardEntrance {
  0% {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.card-inner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 44px 36px;
  text-align: center;
  box-shadow: 0 4px 24px var(--card-shadow);
  position: relative;
  overflow: hidden;
}

.card-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-light), transparent);
  opacity: 0.5;
}

.card-heart {
  margin-bottom: 20px;
}

.heart-svg {
  width: 70px;
  height: 70px;
  color: var(--heart-color);
  animation: heartbeat 1.5s ease-in-out infinite;
  filter: drop-shadow(0 2px 8px var(--accent-glow));
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.1); }
  30% { transform: scale(1); }
  45% { transform: scale(1.07); }
  60% { transform: scale(1); }
}

.card-receiver {
  font-family: 'Special Elite', cursive;
  font-size: 1.8rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.card-question {
  font-family: 'Special Elite', cursive;
  font-size: 1.4rem;
  font-weight: 400;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.card-message {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.6;
  margin-bottom: 16px;
  font-style: italic;
}

.card-sender {
  font-family: 'Special Elite', cursive;
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 32px;
}

/* Buttons */
.card-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
}

.btn-yes, .btn-no {
  padding: 12px 36px;
  border: none;
  border-radius: 50px;
  font-family: 'Special Elite', cursive;
  font-size: 1rem;
  font-weight: 400;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.3s, background 0.3s;
  letter-spacing: 0.02em;
}

.btn-yes {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 3px 12px var(--accent-glow);
}

.btn-yes:hover {
  transform: scale(1.05);
  background: var(--btn-yes-hover);
  box-shadow: 0 5px 20px var(--accent-glow);
}

.btn-no {
  background: var(--btn-no-bg);
  color: var(--btn-no-text);
  position: relative;
  transition: transform 0.15s ease-out, left 0.15s ease-out, top 0.15s ease-out;
}

.btn-no:hover {
  background: #cbbdb6;
}

/* ===== Yes Response ===== */
.response {
  text-align: center;
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.response-content {
  padding: 40px 20px;
}

.big-heart-anim .heart-svg {
  width: 100px;
  height: 100px;
}

.huge-heart {
  animation: hugeHeartbeat 0.8s ease-in-out infinite;
}

@keyframes hugeHeartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.response-title {
  font-family: 'Special Elite', cursive;
  font-size: 2.2rem;
  color: var(--accent);
  margin: 20px 0 12px;
}

.response-text {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

/* ===== Confetti Canvas ===== */
#confettiCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
}

/* ===== Buy Me a Coffee ===== */
.bmc-btn {
  font-family: 'Special Elite', cursive;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 6px 14px;
  transition: color 0.3s, border-color 0.3s, background 0.3s;
}

.bmc-btn:hover {
  color: var(--accent);
  border-color: var(--accent-light);
  background: var(--accent-glow);
}

.bmc-top-right {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 20;
}

.bmc-footer {
  text-decoration: none;
  font-size: 0.85rem;
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 14px;
  font-size: 0.75rem;
  color: var(--text-muted);
  z-index: 5;
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

.footer-heart {
  color: var(--heart-color);
}

/* ===== Mobile ===== */
@media (max-width: 520px) {
  .creator-container {
    padding: 28px 20px;
  }

  .creator-title {
    font-size: 2.1rem;
  }

  .card-inner {
    padding: 32px 22px;
  }

  .card-receiver {
    font-size: 1.7rem;
  }

  .card-question {
    font-size: 1.15rem;
  }

  .btn-yes, .btn-no {
    padding: 11px 28px;
    font-size: 0.95rem;
  }

  .theme-picker {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }

  .theme-option {
    flex-shrink: 0;
  }
}