/* ==========================================================================
   Baby Survey Theme & Design System
   Created by Leen and Ala
   ========================================================================== */

:root {
  /* Color Tokens */
  --bg-gradient: linear-gradient(135deg, #fce4ec 0%, #e1f5fe 50%, #f3e5f5 100%);
  --primary-pink: #ff6b8b;
  --primary-blue: #4a90e2;
  --pastel-pink: #ffd1dc;
  --pastel-blue: #b3e5fc;
  --pastel-yellow: #fff59d;
  --pastel-purple: #e1bee7;
  
  --text-dark: #2c3e50;
  --text-muted: #607d8b;
  --white: #ffffff;
  
  --glass-bg: rgba(255, 255, 255, 0.78);
  --glass-border: rgba(255, 255, 255, 0.85);
  --glass-shadow: 0 16px 40px rgba(74, 144, 226, 0.12);
  
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-pill: 50px;
  
  --font-heading: 'Fredoka', cursive, sans-serif;
  --font-body: 'Outfit', sans-serif;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Reset & Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--bg-gradient);
  overflow-x: hidden;
  position: relative;
}

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

/* Top Nav Header */
.top-nav {
  position: relative;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.logo-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--glass-border);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

.baby-icon {
  font-size: 1.4rem;
  animation: gentleWiggle 3s infinite ease-in-out;
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-dark);
}

.nav-actions {
  display: flex;
  gap: 10px;
}

.pill-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border: 1.5px solid var(--glass-border);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-dark);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-fast);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.pill-btn:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 6px 18px rgba(74, 144, 226, 0.15);
}

.pill-btn:active {
  transform: translateY(0);
}

/* App Container */
.app-container {
  position: relative;
  z-index: 10;
  max-width: 680px;
  margin: 10px auto 40px;
  padding: 0 16px;
}

/* Glass Panel Base */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  padding: 36px 30px;
  margin-bottom: 20px;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.hidden {
  display: none !important;
}

/* Hero Section */
.hero-card {
  text-align: center;
}

.header-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #ffe4e8, #e0f2fe);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  line-height: 1.25;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-pink), var(--primary-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.welcome-message {
  margin-bottom: 30px;
}

.greeting-lead {
  font-size: 1.12rem;
  line-height: 1.6;
  color: var(--text-dark);
  font-weight: 500;
  margin-bottom: 12px;
}

.greeting-sub {
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.cta-wrapper {
  margin: 28px 0 32px;
}

/* Primary Button */
.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, #ff758c 0%, #ff7eb3 50%, #6875f5 100%);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  padding: 16px 36px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(255, 117, 140, 0.35);
  transition: var(--transition-normal);
  width: 100%;
  max-width: 340px;
}

.primary-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 30px rgba(104, 117, 245, 0.4);
}

.primary-btn:active {
  transform: translateY(1px) scale(0.99);
}

.btn-arrow {
  transition: transform 0.2s ease;
}

.primary-btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* Signature Box */
.signature-box {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.9);
  padding: 14px 24px;
  border-radius: var(--radius-md);
  border: 1.5px dashed #ffb6c1;
  margin-top: 10px;
}

.heart-icon {
  font-size: 1.6rem;
  animation: pulseHeart 1.8s infinite ease-in-out;
}

.signature-text {
  text-align: left;
  display: flex;
  flex-direction: column;
}

.signature-text span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.signature-names {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: #d81b60;
  font-weight: 700;
}

/* Survey Form Section */
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.back-btn {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--glass-border);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
}

.back-btn:hover {
  color: var(--text-dark);
  background: var(--white);
}

.step-indicator {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-blue);
  background: var(--pastel-blue);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.survey-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}

.form-label {
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 6px;
}

.required {
  color: #e53935;
}

.sub-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: #d84315;
  background: #fbe9e7;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-left: 4px;
}

.form-input, .form-textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 2px solid rgba(200, 210, 225, 0.6);
  background: rgba(255, 255, 255, 0.95);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-dark);
  transition: var(--transition-fast);
  outline: none;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 4px rgba(74, 144, 226, 0.15);
  background: var(--white);
}

/* Gender Radio Cards Grid */
.gender-options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 4px;
}

.gender-option-card {
  position: relative;
  cursor: pointer;
  border-radius: var(--radius-md);
  border: 2px solid rgba(220, 225, 235, 0.7);
  background: rgba(255, 255, 255, 0.85);
  padding: 16px;
  text-align: center;
  transition: var(--transition-fast);
  user-select: none;
}

.gender-option-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.option-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.gender-emoji {
  font-size: 2rem;
  margin-bottom: 2px;
  transition: transform 0.2s ease;
}

.gender-label {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
}

.gender-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Gender Selection States */
.gender-option-card:hover {
  transform: translateY(-2px);
  border-color: #b0bec5;
  background: var(--white);
}

.gender-option-card:hover .gender-emoji {
  transform: scale(1.15);
}

.gender-option-card.boy:has(input:checked) {
  border-color: var(--primary-blue);
  background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  box-shadow: 0 8px 20px rgba(74, 144, 226, 0.25);
}

.gender-option-card.girl:has(input:checked) {
  border-color: var(--primary-pink);
  background: linear-gradient(135deg, #fce4ec, #f8bbd0);
  box-shadow: 0 8px 20px rgba(255, 107, 139, 0.25);
}

.gender-option-card.twins:has(input:checked) {
  border-color: #ab47bc;
  background: linear-gradient(135deg, #f3e5f5, #e1bee7);
  box-shadow: 0 8px 20px rgba(171, 71, 188, 0.25);
}

.gender-option-card.surprise:has(input:checked) {
  border-color: #fbc02d;
  background: linear-gradient(135deg, #fffde7, #fff9c4);
  box-shadow: 0 8px 20px rgba(251, 192, 45, 0.25);
}

.form-actions {
  margin-top: 10px;
  text-align: center;
}

.submit-btn {
  max-width: 100%;
}

/* Results & Thank You Letter Section */
.results-card {
  text-align: center;
}

.thank-you-letter {
  background: rgba(255, 255, 255, 0.88);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  border: 1.5px solid rgba(255, 255, 255, 0.95);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

.letter-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 24px;
}

.envelope-badge {
  font-size: 3.8rem;
  margin-bottom: 12px;
  animation: bouncePop 1s ease-out;
}

.letter-title {
  font-family: var(--font-heading);
  font-size: 1.9rem;
  color: var(--text-dark);
  margin-bottom: 12px;
  line-height: 1.3;
}

.letter-divider {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-pink), var(--primary-blue));
  border-radius: var(--radius-pill);
}

.letter-body {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}

.letter-greeting {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 600;
  color: #d81b60;
}

.letter-paragraph {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-dark);
}

.submission-recap-box {
  background: linear-gradient(135deg, rgba(252, 228, 236, 0.65), rgba(225, 245, 254, 0.65));
  border: 1.5px dashed rgba(255, 107, 139, 0.45);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin: 6px 0;
}

.recap-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.recap-details {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-around;
}

.recap-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(255, 255, 255, 0.95);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  min-width: 180px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.recap-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
}

.recap-value {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-dark);
}

.letter-closing {
  margin-top: 10px;
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.letter-closing p {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-style: italic;
}

.letter-signature-names {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: #d81b60;
  font-weight: 700;
}

.results-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.secondary-btn {
  background: rgba(255, 255, 255, 0.9);
  border: 2px solid var(--glass-border);
  color: var(--text-dark);
  font-family: var(--font-heading);
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition-fast);
}

.secondary-btn:hover {
  background: var(--white);
  transform: translateY(-2px);
}

.download-link-btn {
  text-decoration: none;
  max-width: fit-content;
  font-size: 1rem;
  padding: 12px 26px;
}

/* Interaction Hint Footer */
.interaction-hint {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  padding: 10px;
}

/* Animations */
@keyframes gentleWiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-8deg); }
  75% { transform: rotate(8deg); }
}

@keyframes pulseHeart {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

@keyframes bouncePop {
  0% { transform: scale(0.3); opacity: 0; }
  50% { transform: scale(1.15); }
  70% { transform: scale(0.95); }
  100% { transform: scale(1); opacity: 1; }
}

/* Responsive Media Queries */
@media (max-width: 600px) {
  .top-nav {
    padding: 12px 16px;
  }
  
  .logo-text {
    font-size: 0.9rem;
  }
  
  .btn-text {
    display: none;
  }
  
  .glass-panel {
    padding: 26px 18px;
    border-radius: 20px;
  }
  
  .hero-title {
    font-size: 1.8rem;
  }
  
  .gender-options-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .gender-emoji {
    font-size: 1.6rem;
  }
  
  .gender-label {
    font-size: 0.95rem;
  }

  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}