/* Patient Guide - Toss Style CSS */

/* ==================== Base Variables ==================== */
:root {
  --toss-blue: #3182f6;
  --toss-blue-light: #4a9bff;
  --toss-blue-dark: #1a6de0;
  --toss-red: #f04452;
  --toss-orange: #f59f00;
  --toss-green: #10b981;
  --toss-gray-50: #f9fafb;
  --toss-gray-100: #f3f4f6;
  --toss-gray-200: #e5e8eb;
  --toss-gray-300: #d1d5db;
  --toss-gray-400: #9ca3af;
  --toss-gray-500: #6b7280;
  --toss-gray-600: #4b5563;
  --toss-gray-700: #374151;
  --toss-gray-800: #191f28;
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Pretendard', 'Segoe UI', Roboto, sans-serif;
  background: var(--toss-gray-50);
  color: var(--toss-gray-800);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ==================== Layout ==================== */
.toss-container {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  background: white;
  position: relative;
}

.toss-header {
  padding: 20px;
  background: white;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--toss-gray-100);
}

.toss-content {
  padding: 20px;
  padding-bottom: 100px;
}

/* ==================== Cards ==================== */
.toss-card {
  background: white;
  border-radius: var(--border-radius-lg);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--toss-gray-100);
}

.toss-card-lg {
  padding: 24px;
}

.toss-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.toss-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--toss-gray-800);
}

.toss-card-subtitle {
  font-size: 14px;
  color: var(--toss-gray-500);
}

/* ==================== Buttons ==================== */
.toss-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--border-radius-md);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.toss-btn:active {
  transform: scale(0.98);
}

.toss-btn-primary {
  background: var(--toss-blue);
  color: white;
}

.toss-btn-primary:hover {
  background: var(--toss-blue-dark);
}

.toss-btn-secondary {
  background: var(--toss-gray-100);
  color: var(--toss-gray-700);
}

.toss-btn-secondary:hover {
  background: var(--toss-gray-200);
}

.toss-btn-outline {
  background: transparent;
  border: 1.5px solid var(--toss-gray-200);
  color: var(--toss-gray-700);
}

.toss-btn-outline:hover {
  border-color: var(--toss-blue);
  color: var(--toss-blue);
}

.toss-btn-ghost {
  background: transparent;
  color: var(--toss-gray-500);
}

.toss-btn-ghost:hover {
  color: var(--toss-blue);
  background: var(--toss-gray-50);
}

.toss-btn-lg {
  padding: 16px 24px;
  font-size: 16px;
}

.toss-btn-sm {
  padding: 8px 12px;
  font-size: 13px;
}

.toss-btn-full {
  width: 100%;
}

/* ==================== Inputs ==================== */
.toss-input {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--toss-gray-200);
  border-radius: var(--border-radius-md);
  font-size: 16px;
  background: white;
  color: var(--toss-gray-800);
  transition: all var(--transition-fast);
}

.toss-input:focus {
  outline: none;
  border-color: var(--toss-blue);
  box-shadow: 0 0 0 3px rgba(49, 130, 246, 0.1);
}

.toss-input::placeholder {
  color: var(--toss-gray-400);
}

.toss-input-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--toss-gray-700);
  margin-bottom: 8px;
}

.toss-input-group {
  margin-bottom: 20px;
}

/* ==================== Navigation ==================== */
.toss-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 480px;
  margin: 0 auto;
  background: white;
  border-top: 1px solid var(--toss-gray-100);
  display: flex;
  justify-content: space-around;
  padding: 8px 0;
  padding-bottom: calc(8px + env(safe-area-inset-bottom));
  z-index: 1000;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  color: var(--toss-gray-400);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.nav-item.active {
  color: var(--toss-blue);
}

.nav-item:hover {
  color: var(--toss-gray-600);
}

.nav-item svg {
  width: 24px;
  height: 24px;
}

.nav-item span {
  font-size: 11px;
  font-weight: 500;
}

/* ==================== Progress Bar ==================== */
.toss-progress {
  width: 100%;
  height: 8px;
  background: var(--toss-gray-100);
  border-radius: 4px;
  overflow: hidden;
}

.toss-progress-bar {
  height: 100%;
  background: var(--toss-blue);
  border-radius: 4px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.toss-progress-bar.animated {
  animation: progressPulse 2s ease-in-out infinite;
}

@keyframes progressPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

/* ==================== Stats & Metrics ==================== */
.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--toss-gray-800);
}

.stat-value-lg {
  font-size: 40px;
}

.stat-label {
  font-size: 14px;
  color: var(--toss-gray-500);
}

.stat-change {
  font-size: 13px;
  font-weight: 500;
}

.stat-change.positive {
  color: var(--toss-green);
}

.stat-change.negative {
  color: var(--toss-red);
}

/* ==================== Alerts & Notifications ==================== */
.toss-alert {
  padding: 16px 20px;
  border-radius: var(--border-radius-md);
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.toss-alert-info {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  color: var(--toss-blue);
}

.toss-alert-success {
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  color: var(--toss-green);
}

.toss-alert-warning {
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
  color: var(--toss-orange);
}

.toss-alert-danger {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  color: var(--toss-red);
}

/* ==================== Toast ==================== */
.toss-toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  padding: 14px 24px;
  background: var(--toss-gray-800);
  color: white;
  border-radius: var(--border-radius-lg);
  font-size: 14px;
  font-weight: 500;
  z-index: 10000;
  animation: toastSlideUp 0.3s ease;
  box-shadow: var(--shadow-lg);
}

.toss-toast.success {
  background: var(--toss-green);
}

.toss-toast.error {
  background: var(--toss-red);
}

@keyframes toastSlideUp {
  from {
    opacity: 0;
    transform: translate(-50%, 20px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* ==================== Floating Button ==================== */
.floating-btn {
  position: fixed;
  bottom: 90px;
  right: 20px;
  padding: 14px 20px;
  background: var(--toss-blue);
  color: white;
  border: none;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(49, 130, 246, 0.4);
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: floatBounce 2s ease-in-out infinite;
}

@keyframes floatBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* ==================== Loading ==================== */
.toss-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  gap: 16px;
}

.toss-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--toss-gray-100);
  border-top-color: var(--toss-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==================== Badge ==================== */
.toss-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
}

.toss-badge-blue {
  background: #eff6ff;
  color: var(--toss-blue);
}

.toss-badge-green {
  background: #ecfdf5;
  color: var(--toss-green);
}

.toss-badge-red {
  background: #fef2f2;
  color: var(--toss-red);
}

.toss-badge-orange {
  background: #fffbeb;
  color: var(--toss-orange);
}

.toss-badge-gray {
  background: var(--toss-gray-100);
  color: var(--toss-gray-600);
}

/* ==================== Charts ==================== */
.chart-container {
  position: relative;
  width: 100%;
  height: 200px;
  margin: 16px 0;
}

.chart-bar {
  position: absolute;
  bottom: 30px;
  background: var(--toss-blue);
  border-radius: 4px 4px 0 0;
  transition: height 0.5s ease;
}

.chart-bar:hover {
  opacity: 0.8;
}

.chart-label {
  position: absolute;
  bottom: 8px;
  font-size: 11px;
  color: var(--toss-gray-500);
  text-align: center;
}

/* ==================== Donut Chart ==================== */
.donut-chart {
  position: relative;
  width: 60px;
  height: 60px;
}

.donut-chart svg {
  transform: rotate(-90deg);
}

.donut-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 14px;
  font-weight: 700;
}

/* ==================== Divider ==================== */
.toss-divider {
  height: 1px;
  background: var(--toss-gray-100);
  margin: 20px 0;
}

.toss-divider-thick {
  height: 8px;
  background: var(--toss-gray-50);
  margin: 0 -20px;
}

/* ==================== Text Utilities ==================== */
.text-primary { color: var(--toss-blue); }
.text-success { color: var(--toss-green); }
.text-danger { color: var(--toss-red); }
.text-warning { color: var(--toss-orange); }
.text-muted { color: var(--toss-gray-500); }
.text-dark { color: var(--toss-gray-800); }

.text-sm { font-size: 13px; }
.text-md { font-size: 15px; }
.text-lg { font-size: 18px; }
.text-xl { font-size: 24px; }
.text-2xl { font-size: 32px; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* ==================== Flex Utilities ==================== */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }

/* ==================== Spacing Utilities ==================== */
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.p-2 { padding: 8px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }

/* ==================== Animations ==================== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

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

.animate-fade-in { animation: fadeIn 0.3s ease; }
.animate-slide-up { animation: slideUp 0.3s ease; }
.animate-count-up { animation: countUp 0.5s ease; }

/* ==================== Media Queries ==================== */
@media (max-width: 480px) {
  .toss-container {
    max-width: 100%;
  }
  
  .stat-value-lg {
    font-size: 32px;
  }
}

/* ==================== Dark Mode Support ==================== */
@media (prefers-color-scheme: dark) {
  :root {
    --toss-gray-50: #1a1a1a;
    --toss-gray-100: #2a2a2a;
    --toss-gray-200: #3a3a3a;
    --toss-gray-800: #ffffff;
  }
  
  .toss-container,
  .toss-card,
  .toss-header,
  .toss-nav {
    background: #1a1a1a;
  }
  
  .toss-input {
    background: #2a2a2a;
    color: white;
  }
}