/* ==========================================================================
   Design Tokens & CSS Variables
   ========================================================================== */
:root {
  --font-sans: 'Outfit', sans-serif;
  --font-serif: 'Playfair Display', serif;
  --font-handwriting: 'Dancing Script', cursive;

  /* Colors */
  --bg-radial-1: #1a1e29;
  --bg-radial-2: #0d0f14;

  --primary-yellow: #f59e0b;
  --primary-glow: rgba(245, 158, 11, 0.35);
  --primary-hover: #d97706;

  --glass-bg: rgba(23, 27, 38, 0.75);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;

  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  background: radial-gradient(circle at center, var(--bg-radial-1) 0%, var(--bg-radial-2) 100%);
  color: var(--text-main);
}

/* Three.js Canvas Container */
#canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Vignette overlay */
.vignette-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
  background: radial-gradient(circle at center, transparent 60%, rgba(0, 0, 0, 0.55) 100%);
}

/* ==========================================================================
   Header Branding
   ========================================================================== */
.app-header {
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 10;
  pointer-events: none;
}

.brand {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  padding: 10px 20px;
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
}

.flower-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #fbbf24, #d97706);
  color: #111;
  border-radius: 50%;
  box-shadow: 0 0 15px var(--primary-glow);
}

.brand h1 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #fff;
}

.brand p {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.header-actions {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.primary-btn {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  color: #1a1a1a;
  box-shadow: 0 4px 15px var(--primary-glow);
  font-weight: 600;
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
}

.icon-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  backdrop-filter: blur(16px);
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
}

/* ==========================================================================
   Floating Corner Buttons (top-left audio, top-right dedicatoria)
   ========================================================================== */
.corner-btn {
  position: fixed;
  top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  background: var(--glass-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--glass-border);
  border-radius: 40px;
  color: #fff;
  cursor: pointer;
  box-shadow: var(--glass-shadow);
  z-index: 20;
  transition: all var(--transition-fast);
}

.corner-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.corner-top-left {
  left: 20px;
  padding: 10px 14px;
  /* icon-only, slightly compact */
}

.corner-top-right {
  right: 20px;
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.22) 0%, rgba(245, 158, 11, 0.18) 100%);
  border-color: rgba(251, 191, 36, 0.35);
}

.corner-top-right:hover {
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.35) 0%, rgba(245, 158, 11, 0.3) 100%);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
}

.corner-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ==========================================================================
   Single Floating Bottom Controls Bar
   ========================================================================== */
.bottom-controls-bar {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  padding: 8px 12px;
  border-radius: 40px;
  box-shadow: var(--glass-shadow);
  z-index: 20;
}

.bar-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.bar-btn i {
  width: 16px;
  height: 16px;
}

.bar-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  transform: translateY(-2px);
}

.bar-btn.active {
  background: rgba(245, 158, 11, 0.25);
  border-color: rgba(245, 158, 11, 0.6);
  color: #fbbf24;
  font-weight: 600;
}

.primary-bar-btn {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  color: #1a1a1a;
  border: none;
  font-weight: 600;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.primary-bar-btn:hover {
  background: linear-gradient(135deg, #fcd34d 0%, #fbbf24 100%);
  color: #111;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
}

/* ==========================================================================
   Modal & Dedication Card
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 1;
  transition: opacity var(--transition-normal);
}

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

.card-modal-content {
  position: relative;
  width: 90%;
  max-width: 480px;
  background: linear-gradient(145deg, #fffcf5 0%, #fef3c7 100%);
  border-radius: 24px;
  padding: 40px 32px 32px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 40px rgba(245, 158, 11, 0.25);
  color: #292524;
  transform: translateY(0) scale(1);
  transition: transform var(--transition-normal);
}

.modal-overlay.hidden .card-modal-content {
  transform: translateY(20px) scale(0.95);
}

.close-btn {
  position: absolute;
  top: 16px;
  right: 18px;
  background: rgba(0, 0, 0, 0.06);
  border: none;
  font-size: 1.5rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  color: #78350f;
  transition: background var(--transition-fast);
}

.close-btn:hover {
  background: rgba(0, 0, 0, 0.12);
}

.card-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.card-ribbon {
  width: 50px;
  height: 50px;
  background: #f59e0b;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.4);
  margin-bottom: 16px;
}

.card-inner h2 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: #78350f;
  margin-bottom: 8px;
}

.card-divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, #d97706, transparent);
  margin: 12px 0 18px;
}

.card-inner p {
  font-family: var(--font-sans);
  font-style: normal;
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1.6;
  color: #451a03;
  margin-bottom: 20px;
  word-break: break-word;
}

.card-signature {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: #b45309;
  margin-bottom: 24px;
}

.subtle-btn {
  background: rgba(180, 83, 9, 0.08);
  color: #78350f;
  border: 1px dashed rgba(180, 83, 9, 0.3);
  font-size: 0.8rem;
}

.subtle-btn:hover {
  background: rgba(180, 83, 9, 0.15);
}

/* Edit Form */
.edit-form {
  width: 100%;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(180, 83, 9, 0.15);
  text-align: left;
}

.edit-form.hidden {
  display: none;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: #78350f;
  margin-bottom: 4px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid #fcd34d;
  background: #fff;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: #1c1917;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #f59e0b;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .app-header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .brand h1 {
    font-size: 1rem;
  }

  .bottom-controls-bar {
    bottom: 16px;
    width: 92%;
    justify-content: space-around;
    padding: 6px 8px;
  }

  .bar-btn span {
    display: none;
  }

  .bar-btn {
    padding: 10px;
    border-radius: 50%;
  }
}