/* ============================================
   MEHIR HESAPLAMA - DESIGN SYSTEM
   Theme: Gold & Luxury on Dark
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;0,800;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --gold-primary: #D4A843;
  --gold-light: #F0D68A;
  --gold-dark: #9E7A2F;
  --gold-glow: rgba(212, 168, 67, 0.3);
  --gold-gradient: linear-gradient(135deg, #D4A843, #F0D68A, #D4A843);
  
  --bg-primary: #0A0A12;
  --bg-secondary: #121220;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --bg-glass: rgba(255, 255, 255, 0.06);
  
  --text-primary: #F5F0E8;
  --text-secondary: rgba(245, 240, 232, 0.6);
  --text-muted: rgba(245, 240, 232, 0.35);
  
  --purple-accent: #6C3FA0;
  --purple-dark: #2D1854;
  --purple-glow: rgba(108, 63, 160, 0.25);

  /* Tier Colors */
  --tier-bronze: #CD7F32;
  --tier-silver: #C0C0C0;
  --tier-gold: #FFD700;
  --tier-platinum: #A8D8EA;
  --tier-diamond: #B9F2FF;

  /* Typography */
  --font-display: 'Playfair Display', serif;
  --font-body: 'Inter', -apple-system, sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-gold: 0 0 30px rgba(212, 168, 67, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-elevated: 0 16px 48px rgba(0, 0, 0, 0.4);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 600ms;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* --- Background Effects --- */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 20%, var(--purple-glow) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, var(--gold-glow) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 50%, rgba(10, 10, 18, 0.9) 0%, var(--bg-primary) 70%);
  z-index: -2;
  animation: bgPulse 15s ease-in-out infinite alternate;
}

@keyframes bgPulse {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-2%, -1%) scale(1.02); }
  100% { transform: translate(1%, 2%) scale(1); }
}

/* --- Sparkle Particles --- */
.sparkle-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.sparkle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--gold-light);
  border-radius: 50%;
  animation: sparkleFloat linear infinite;
  opacity: 0;
}

@keyframes sparkleFloat {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }

.gold-text {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
}

/* --- Layout --- */
.app-container {
  max-width: 520px;
  margin: 0 auto;
  padding: var(--space-lg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Landing Screen --- */
.screen {
  display: none;
  flex-direction: column;
  flex: 1;
}

.screen.active {
  display: flex;
  animation: fadeIn var(--duration-normal) var(--ease-out);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Wizard Steps --- */
.wizard-step {
  display: none;
  flex-direction: column;
  flex: 1;
}

.wizard-step.active {
  display: flex;
  animation: fadeIn var(--duration-normal) var(--ease-out);
}

.landing-screen {
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-xl);
  padding: var(--space-3xl) 0;
}

.landing-icon {
  font-size: 4.5rem;
  animation: ringFloat 3s var(--ease-out) infinite;
  filter: drop-shadow(0 0 20px var(--gold-glow));
}

@keyframes ringFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(5deg); }
}

.landing-title {
  letter-spacing: -0.02em;
}

.landing-description {
  max-width: 380px;
}

.landing-leaderboard {
  width: 100%;
  max-width: 400px;
  margin-top: var(--space-lg);
}

/* --- Gender Selection --- */
.gender-buttons {
  display: flex;
  gap: var(--space-lg);
  width: 100%;
  max-width: 380px;
}

.btn-gender {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xl) var(--space-md);
  background: var(--bg-glass);
  border: 1.5px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  color: var(--text-primary);
  font-family: var(--font-body);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-gender:hover {
  background: rgba(212, 168, 67, 0.08);
  border-color: var(--gold-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(212, 168, 67, 0.15);
}

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

.gender-icon {
  font-size: 3rem;
}

.gender-label {
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-display);
}

.gender-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.4;
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--gold-gradient);
  color: #1a1a2e;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  box-shadow: var(--shadow-gold), 0 4px 15px rgba(212, 168, 67, 0.3);
  min-width: 200px;
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.3) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.btn-primary:hover::after {
  transform: translateX(100%);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold), 0 8px 25px rgba(212, 168, 67, 0.4);
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: transparent;
  color: var(--gold-primary);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid var(--gold-primary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-secondary:hover {
  background: rgba(212, 168, 67, 0.1);
  transform: translateY(-1px);
}

.btn-nav {
  display: flex;
  gap: var(--space-md);
  margin-top: auto;
  padding-top: var(--space-xl);
}

.btn-nav .btn-secondary {
  flex: 1;
}

.btn-nav .btn-primary {
  flex: 2;
}

/* --- Progress Bar --- */
.progress-bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg) 0;
}

.progress-step {
  flex: 1;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.progress-step.active,
.progress-step.completed {
  background: var(--gold-primary);
  box-shadow: 0 0 8px var(--gold-glow);
}

.progress-step.active::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--space-xs);
  font-weight: 500;
}

.step-number {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

/* --- Step Header --- */
.step-header {
  margin-bottom: var(--space-xl);
}

.step-header h2 {
  margin-bottom: var(--space-sm);
}

.step-header .subtitle {
  font-size: 0.9rem;
}

.step-emoji {
  font-size: 1.8rem;
  margin-bottom: var(--space-sm);
  display: block;
}

/* --- Form Fields --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.form-label .label-emoji {
  font-size: 1rem;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* --- Custom Range Slider --- */
.slider-container {
  position: relative;
  padding: var(--space-sm) 0;
}

.slider-value {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--gold-primary);
  margin-bottom: var(--space-sm);
  transition: all var(--duration-fast) var(--ease-spring);
}

.slider-value.bump {
  transform: scale(1.15);
}

.slider-range {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
  position: relative;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gold-gradient);
  cursor: pointer;
  box-shadow: 0 0 12px var(--gold-glow), 0 2px 8px rgba(0,0,0,0.3);
  transition: transform var(--duration-fast) var(--ease-spring);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

input[type="range"]::-webkit-slider-thumb:active {
  transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gold-gradient);
  cursor: pointer;
  border: none;
  box-shadow: 0 0 12px var(--gold-glow), 0 2px 8px rgba(0,0,0,0.3);
}

/* --- Select Buttons (Chip Group) --- */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.chip {
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border: 1.5px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  user-select: none;
  white-space: nowrap;
}

.chip:hover {
  background: var(--bg-card-hover);
  border-color: rgba(212, 168, 67, 0.3);
  color: var(--text-primary);
}

.chip.selected {
  background: rgba(212, 168, 67, 0.15);
  border-color: var(--gold-primary);
  color: var(--gold-light);
  box-shadow: 0 0 12px rgba(212, 168, 67, 0.1);
}

.chip .chip-emoji {
  margin-right: var(--space-xs);
}

/* --- Number Input --- */
.input-row {
  display: flex;
  gap: var(--space-md);
}

.input-row .form-group {
  flex: 1;
}

.number-input {
  width: 100%;
  padding: var(--space-md);
  background: var(--bg-card);
  border: 1.5px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  outline: none;
  transition: all var(--duration-fast) var(--ease-out);
  -moz-appearance: textfield;
}

.number-input::-webkit-outer-spin-button,
.number-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.number-input:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.1);
  background: var(--bg-card-hover);
}

.number-input::placeholder {
  color: var(--text-muted);
}

.input-unit {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* --- BMI Display --- */
.bmi-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  margin-top: var(--space-sm);
  border: 1px solid rgba(255,255,255,0.05);
}

.bmi-value {
  font-size: 1.4rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--gold-primary);
}

.bmi-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.bmi-category {
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.bmi-category.ideal { background: rgba(76, 175, 80, 0.2); color: #81C784; }
.bmi-category.normal { background: rgba(139, 195, 74, 0.2); color: #AED581; }
.bmi-category.underweight { background: rgba(255, 183, 77, 0.2); color: #FFB74D; }
.bmi-category.overweight { background: rgba(255, 152, 0, 0.2); color: #FFA726; }
.bmi-category.obese { background: rgba(244, 67, 54, 0.2); color: #E57373; }

/* --- Results Screen --- */
.results-screen {
  align-items: center;
  text-align: center;
  gap: var(--space-lg);
  padding-top: var(--space-xl);
}

.result-tier-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: badgePop 0.6s var(--ease-spring) 0.3s both;
}

@keyframes badgePop {
  from { opacity: 0; transform: scale(0.5); }
  to { opacity: 1; transform: scale(1); }
}

.result-tier-badge.bronze { background: rgba(205, 127, 50, 0.2); color: var(--tier-bronze); border: 1px solid rgba(205, 127, 50, 0.3); }
.result-tier-badge.silver { background: rgba(192, 192, 192, 0.15); color: var(--tier-silver); border: 1px solid rgba(192, 192, 192, 0.3); }
.result-tier-badge.gold { background: rgba(255, 215, 0, 0.15); color: var(--tier-gold); border: 1px solid rgba(255, 215, 0, 0.3); }
.result-tier-badge.platinum { background: rgba(168, 216, 234, 0.15); color: var(--tier-platinum); border: 1px solid rgba(168, 216, 234, 0.3); }
.result-tier-badge.diamond { background: rgba(185, 242, 255, 0.15); color: var(--tier-diamond); border: 1px solid rgba(185, 242, 255, 0.3); text-shadow: 0 0 10px rgba(185, 242, 255, 0.5); }

.result-main-value {
  animation: valueReveal 0.8s var(--ease-out) 0.5s both;
}

@keyframes valueReveal {
  from { opacity: 0; transform: translateY(20px) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.result-gram {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 5rem);
  font-weight: 800;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.result-gram-label {
  font-size: 1.2rem;
  color: var(--text-secondary);
  font-weight: 300;
  margin-top: var(--space-xs);
}

.result-tl {
  font-size: 1.1rem;
  color: var(--gold-primary);
  font-weight: 600;
  margin-top: var(--space-sm);
  opacity: 0.8;
}

.result-comment {
  background: var(--bg-glass);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  max-width: 400px;
  animation: fadeIn 0.6s var(--ease-out) 0.8s both;
}

.result-comment p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-style: italic;
}

.result-comment .comment-emoji {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  display: block;
}

/* --- Category Breakdown --- */
.category-breakdown {
  width: 100%;
  max-width: 400px;
  animation: fadeIn 0.6s var(--ease-out) 1s both;
}

.category-breakdown h3 {
  margin-bottom: var(--space-md);
  font-size: 1rem;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 600;
}

.category-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.category-bar-label {
  flex: 0 0 100px;
  text-align: right;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.category-bar-track {
  flex: 1;
  height: 8px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.category-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--gold-gradient);
  transition: width 1s var(--ease-out);
  width: 0;
}

.category-bar-value {
  flex: 0 0 40px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gold-primary);
}

/* --- Share Section --- */
.share-section {
  width: 100%;
  max-width: 400px;
  animation: fadeIn 0.6s var(--ease-out) 1.2s both;
}

.share-section h3 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: var(--space-xs, 4px);
}

.share-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.share-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 380px;
  margin: 0 auto;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-body);
  border: none;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  color: white;
  width: 100%;
}

.share-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.15);
}

/* Main share - Gold gradient */
.share-btn.native {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
  font-size: 0.9rem;
  padding: var(--space-lg);
}

/* Download - Subtle */
.share-btn.download {
  background: rgba(255,255,255,0.08);
  color: var(--text-secondary);
  border: 1px solid rgba(255,255,255,0.1);
  font-size: 0.82rem;
  padding: var(--space-sm) var(--space-lg);
}

/* --- Profile Section --- */
.profile-section {
  text-align: center;
  animation: fadeIn 0.6s var(--ease-out) 1.2s both;
}

.btn-profile {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-profile:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--gold-primary);
  color: var(--gold-primary);
  transform: translateY(-1px);
}

.profile-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: var(--space-xs, 4px);
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-lg);
  animation: fadeIn 0.2s var(--ease-out);
}

.modal-overlay.hidden {
  display: none !important;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 380px;
  overflow: hidden;
  animation: modalSlideUp 0.3s var(--ease-out);
}

@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.modal-header h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--text-primary);
  margin: 0;
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-md);
  transition: all var(--duration-fast);
}

.modal-close-btn:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.modal-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs, 4px);
}

.modal-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  outline: none;
  transition: all var(--duration-fast) var(--ease-out);
}

.modal-input:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 2px rgba(212, 168, 67, 0.12);
}

.modal-input::placeholder {
  color: var(--text-muted);
}

.modal-input-prefix {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
}

.modal-input-prefix:focus-within {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 2px rgba(212, 168, 67, 0.12);
}

.modal-input-prefix span {
  padding: var(--space-sm) 0 var(--space-sm) var(--space-md);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.modal-input-prefix .modal-input {
  border: none;
  background: transparent;
  box-shadow: none;
  padding-left: var(--space-xs, 4px);
}

.modal-input-prefix .modal-input:focus {
  box-shadow: none;
}

.modal-footer {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
}

.modal-footer .btn-primary {
  width: 100%;
}

/* --- Leaderboard Social Links --- */
.lb-social {
  text-decoration: none;
  font-size: 0.75rem;
  opacity: 0.7;
  transition: opacity var(--duration-fast);
  margin-left: 1px;
}

.lb-social:hover {
  opacity: 1;
}

/* --- Restart Button --- */
.restart-section {
  margin-top: var(--space-lg);
  animation: fadeIn 0.6s var(--ease-out) 1.4s both;
}

/* --- Confetti --- */
.confetti-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 100;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  width: 8px;
  height: 12px;
  top: -20px;
  animation: confettiFall linear forwards;
}

@keyframes confettiFall {
  0% { transform: translateY(-10vh) rotate(0deg); opacity: 1; }
  100% { transform: translateY(110vh) rotate(720deg); opacity: 0; }
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(212, 168, 67, 0.3);
  border-radius: var(--radius-full);
}

/* --- Responsive --- */
@media (max-width: 480px) {
  .app-container {
    padding: var(--space-md);
  }

  .chip-group {
    gap: 6px;
  }

  .chip {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  .btn-nav {
    flex-direction: column-reverse;
  }

  .btn-nav .btn-secondary,
  .btn-nav .btn-primary {
    flex: unset;
    width: 100%;
  }

  .result-gram {
    font-size: 3.5rem;
  }

  .category-bar-label {
    flex: 0 0 80px;
    font-size: 0.75rem;
  }
}

/* --- Utility --- */
.hidden { display: none !important; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.text-center { text-align: center; }

/* --- Divider --- */
.divider {
  width: 60px;
  height: 2px;
  background: var(--gold-gradient);
  margin: var(--space-lg) auto;
  border-radius: var(--radius-full);
}

/* --- Form steps scroll area --- */
.step-content {
  flex: 1;
  overflow-y: auto;
  padding-bottom: var(--space-md);
}

/* --- Disclaimer --- */
.disclaimer {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--space-xl);
  line-height: 1.5;
  max-width: 350px;
}

.disclaimer a {
  color: var(--gold-primary);
  text-decoration: none;
}

/* --- Name Input --- */
.name-input-wrapper {
  width: 100%;
  max-width: 300px;
}

.name-input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border: 1.5px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
  outline: none;
  transition: all var(--duration-fast) var(--ease-out);
  text-align: center;
}

.name-input:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.15);
  background: var(--bg-card-hover);
}

.name-input::placeholder {
  color: var(--text-muted);
}

.name-input.input-error {
  border-color: #E57373;
  box-shadow: 0 0 0 3px rgba(229, 115, 115, 0.2);
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* --- Leaderboard --- */
.leaderboard-section {
  width: 100%;
  max-width: 420px;
  animation: fadeIn 0.6s var(--ease-out) 1.3s both;
}

.lb-section {
  margin-bottom: var(--space-xl);
}

.lb-title {
  font-size: 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  text-align: center;
}

.lb-table {
  background: var(--bg-glass);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.lb-row {
  display: flex;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background var(--duration-fast);
  gap: var(--space-sm);
}

.lb-row:last-child {
  border-bottom: none;
}

.lb-row:hover {
  background: rgba(255,255,255,0.03);
}

.lb-row-highlight {
  background: rgba(212, 168, 67, 0.12) !important;
  border-left: 3px solid var(--gold-primary);
}

.lb-row-dim {
  opacity: 0.7;
}

.lb-rank {
  flex: 0 0 36px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-align: center;
}

.lb-name {
  flex: 1;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lb-score {
  flex: 0 0 70px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gold-primary);
  text-align: right;
  font-family: var(--font-display);
}

.lb-tier {
  flex: 0 0 24px;
  font-size: 1rem;
  text-align: center;
}

/* Clickable name */
.lb-name-link {
  cursor: pointer;
  text-decoration: none;
  color: var(--gold-primary) !important;
  transition: color var(--duration-fast);
}

.lb-name-link:hover {
  color: var(--gold-light) !important;
  text-decoration: underline;
}

/* Social Popup Overlay */
.social-popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: var(--space-lg);
  animation: fadeIn 0.15s var(--ease-out);
}

.social-popup {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
  padding: 0;
  min-width: 260px;
  max-width: 320px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  animation: modalSlideUp 0.2s var(--ease-out);
  overflow: hidden;
}

.social-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.social-popup-header button {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 6px;
  border-radius: var(--radius-md);
}

.social-popup-header button:hover {
  background: rgba(255,255,255,0.1);
}

.social-popup-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: background var(--duration-fast);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.social-popup-link:last-child {
  border-bottom: none;
}

.social-popup-link:hover {
  background: rgba(212, 168, 67, 0.1);
}

.social-popup-user {
  color: var(--text-muted);
  font-size: 0.78rem;
}