/* style.css - Neumorphic + Glassmorphic Design System for iPhone 13 mini */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Light Theme - Pastel Sky & Salmon */
  --bg-primary: #f2f5fa;
  --bg-surface: rgba(255, 255, 255, 0.85);
  --bg-surface-elevated: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-sub: #94a3b8;
  
  --sky-primary: #0284c7;
  --sky-light: #e0f2fe;
  --sky-pastel: #38bdf8;
  
  --salmon-primary: #f43f5e;
  --salmon-pastel: #ff8370;
  --salmon-light: #ffe4e6;
  
  --emerald-primary: #10b981;
  --emerald-light: #ecfdf5;
  --amber-primary: #f59e0b;
  --amber-light: #fef3c7;
  
  --border-glass: rgba(255, 255, 255, 0.9);
  --border-subtle: rgba(203, 213, 225, 0.45);
  
  --neu-flat: 6px 6px 14px rgba(180, 195, 215, 0.45), -6px -6px 14px rgba(255, 255, 255, 0.9);
  --neu-pressed: inset 3px 3px 6px rgba(180, 195, 215, 0.4), inset -3px -3px 6px rgba(255, 255, 255, 0.85);
  --neu-button: 4px 4px 10px rgba(180, 195, 215, 0.45), -4px -4px 10px rgba(255, 255, 255, 0.95);
  --neu-hover: 6px 6px 14px rgba(180, 195, 215, 0.5), -6px -6px 14px rgba(255, 255, 255, 1);
  --glass-shadow: 0 10px 25px rgba(148, 163, 184, 0.12);
}

.dark {
  /* Dark Theme - Background #212121, text #e0e0e0 */
  --bg-primary: #212121;
  --bg-surface: rgba(36, 36, 36, 0.88);
  --bg-surface-elevated: #282828;
  --text-main: #e0e0e0;
  --text-muted: #9e9e9e;
  --text-sub: #757575;
  
  --sky-primary: #38bdf8;
  --sky-light: rgba(56, 189, 248, 0.16);
  --sky-pastel: #7dd3fc;
  
  --salmon-primary: #fb7185;
  --salmon-pastel: #ff8370;
  --salmon-light: rgba(251, 113, 133, 0.16);
  
  --emerald-primary: #34d399;
  --emerald-light: rgba(52, 211, 153, 0.16);
  --amber-primary: #fbbf24;
  --amber-light: rgba(251, 191, 36, 0.16);
  
  --border-glass: rgba(255, 255, 255, 0.1);
  --border-subtle: rgba(255, 255, 255, 0.06);
  
  --neu-flat: 6px 6px 14px #171717, -6px -6px 14px #2c2c2c;
  --neu-pressed: inset 3px 3px 6px #141414, inset -3px -3px 6px #2f2f2f;
  --neu-button: 4px 4px 10px #181818, -4px -4px 10px #2b2b2b;
  --neu-hover: 6px 6px 14px #141414, -6px -6px 14px #303030;
  --glass-shadow: 0 10px 28px rgba(0, 0, 0, 0.55);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-size: 18px;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  transition: background-color 0.2s ease, color 0.2s ease;
  overflow-x: hidden;
  padding-bottom: calc(76px + env(safe-area-inset-bottom, 16px));
}

@media (min-width: 768px) {
  body {
    padding-bottom: 24px;
    font-size: 18px;
  }
}

/* Glassmorphism Classes */
.glass-panel {
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  box-shadow: var(--glass-shadow);
}

.glass-nav {
  background: var(--bg-surface);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--border-glass);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.06);
}

.dark .glass-nav {
  box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.6);
}

/* Neumorphism Classes */
.neu-card {
  border-radius: 1.25rem;
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  box-shadow: var(--neu-flat);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.neu-button {
  min-height: 44px;
  min-width: 44px;
  border-radius: 0.875rem;
  background: var(--bg-surface-elevated);
  box-shadow: var(--neu-button);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.875rem;
  transition: all 0.15s ease;
  cursor: pointer;
  user-select: none;
}

.neu-button:active {
  box-shadow: var(--neu-pressed);
  transform: translateY(1px);
}

/* Vivid Active State for Segmented Buttons */
.neu-button.active {
  background: var(--sky-primary) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35) !important;
  border-color: rgba(2, 132, 199, 0.5) !important;
}

.dark .neu-button.active {
  background: var(--sky-pastel) !important;
  color: #0f172a !important;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.45) !important;
  border-color: rgba(56, 189, 248, 0.5) !important;
}

.neu-icon-btn {
  min-height: 44px;
  min-width: 44px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface-elevated);
  box-shadow: var(--neu-button);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  transition: all 0.15s ease;
}

.neu-icon-btn:active, .neu-icon-btn.active {
  box-shadow: var(--neu-pressed);
  transform: scale(0.96);
}

/* Input Fields */
.neu-input {
  min-height: 46px;
  border-radius: 0.875rem;
  background: var(--bg-surface-elevated);
  box-shadow: var(--neu-pressed);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.65rem 0.875rem;
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s;
}

.neu-input:focus {
  border-color: var(--sky-pastel);
}

/* Horizontal pill scrollbar hide */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Vertical Comparison Specific Cards */
.vertical-coin-card {
  position: relative;
  border-radius: 1.25rem;
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  box-shadow: var(--neu-flat);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.metric-pill {
  border-radius: 0.625rem;
  padding: 0.35rem 0.65rem;
  font-size: 0.9375rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* Status Chips */
.chip-success {
  background-color: var(--emerald-light);
  color: var(--emerald-primary);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.chip-warning {
  background-color: var(--amber-light);
  color: var(--amber-primary);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.chip-danger {
  background-color: var(--salmon-light);
  color: var(--salmon-primary);
  border: 1px solid rgba(244, 63, 94, 0.2);
}

.chip-sky {
  background-color: var(--sky-light);
  color: var(--sky-primary);
  border: 1px solid rgba(2, 132, 199, 0.2);
}

/* Accordion Animation */
.accordion-content {
  display: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.accordion-content.expanded {
  display: block;
  opacity: 1;
}

/* Rotate indicator */
.rotate-180 {
  transform: rotate(180deg);
}

/* Thumb zone bottom navigation item */
.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6px 8px;
  min-height: 48px;
  min-width: 52px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 12px;
  transition: all 0.2s ease;
}

.bottom-nav-item.active {
  color: var(--sky-primary);
  background: var(--sky-light);
}

.dark .bottom-nav-item.active {
  color: var(--sky-pastel);
  background: rgba(56, 189, 248, 0.12);
}

/* iPhone 13 mini safe container width */
.iphone-container {
  width: 100%;
  max-width: 100%;
  padding-left: 0.875rem;
  padding-right: 0.875rem;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 640px) {
  .iphone-container {
    max-width: 640px;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

@media (min-width: 1024px) {
  .iphone-container {
    max-width: 1080px;
  }
}

/* Toast Message */
#toastContainer {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  pointer-events: none;
  width: 90%;
  max-width: 400px;
}

.toast {
  pointer-events: auto;
  padding: 0.75rem 1rem;
  border-radius: 1rem;
  font-size: 0.9375rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: slideDown 0.25s ease-out forwards;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Shimmer */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.shimmer {
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.dark .shimmer {
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* Section Highlight for Jump Navigation */
@keyframes highlightPulse {
  0% { box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.7); }
  50% { box-shadow: 0 0 0 6px rgba(56, 189, 248, 0.4); }
  100% { box-shadow: var(--neu-flat); }
}

.section-highlight {
  animation: highlightPulse 1.8s ease-out;
  border-color: rgba(56, 189, 248, 0.7) !important;
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}