/* CSS Reset & Variable Definitions */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Noto+Sans+KR:wght@300;400;500;700;900&display=swap');

:root {
  --bg-gradient-start: #0f172a;
  --bg-gradient-end: #020617;
  --panel-bg: rgba(30, 41, 59, 0.7);
  --panel-border: rgba(255, 255, 255, 0.08);
  --panel-glow: rgba(99, 102, 241, 0.15);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-color: #6366f1;
  --accent-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.4);
  
  /* Korean Lotto Ball Colors */
  --lotto-yellow-start: #ffe066;
  --lotto-yellow-end: #f59f00;
  --lotto-yellow-glow: rgba(245, 159, 0, 0.4);
  
  --lotto-blue-start: #4dabf7;
  --lotto-blue-end: #1c7ed6;
  --lotto-blue-glow: rgba(28, 126, 214, 0.4);
  
  --lotto-red-start: #ff8787;
  --lotto-red-end: #fa5252;
  --lotto-red-glow: rgba(250, 82, 82, 0.4);
  
  --lotto-gray-start: #adb5bd;
  --lotto-gray-end: #495057;
  --lotto-gray-glow: rgba(73, 80, 87, 0.4);
  
  --lotto-green-start: #8ce99a;
  --lotto-green-end: #37b24d;
  --lotto-green-glow: rgba(55, 178, 77, 0.4);

  --font-main: 'Outfit', 'Noto Sans KR', sans-serif;
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-main);
  background: radial-gradient(circle at 50% 0%, #1e1b4b 0%, var(--bg-gradient-end) 70%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  overflow-x: hidden;
  position: relative;
}

/* Background grid effect */
body::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.01) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.01) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center;
  z-index: 0;
  pointer-events: none;
}

/* Ambient glow blobs */
.glow-blob {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  filter: blur(120px);
  z-index: 0;
  opacity: 0.15;
  pointer-events: none;
}

.glow-blob-1 {
  top: 10%;
  left: 15%;
  background: var(--accent-color);
}

.glow-blob-2 {
  bottom: 15%;
  right: 15%;
  background: #ec4899;
}

/* App Container */
.app-container {
  width: 100%;
  max-width: 900px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Header Section */
header {
  text-align: center;
  margin-bottom: 0.5rem;
}

.title-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #a5b4fc;
  margin-bottom: 1rem;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}

.title-badge span {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: #34d399;
  border-radius: 50%;
  box-shadow: 0 0 10px #34d399;
}

h1 {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 300;
}

/* Main Layout Grid */
.main-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .main-layout {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

/* Panel Base Style */
.panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 2rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3),
              inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: var(--transition-smooth);
}

.panel:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.4),
              0 0 30px var(--panel-glow),
              inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

/* Left Panel: Ticket Display */
.ticket-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ticket-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 1rem;
  margin-bottom: 0.5rem;
}

.ticket-title {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ticket-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-icon {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-icon:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-icon:active:not(:disabled) {
  transform: translateY(0);
}

.btn-icon:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Lotto Row Styles */
.lotto-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.03);
  padding: 0.75rem 1.25rem;
  border-radius: 16px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.lotto-row:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.06);
  transform: translateX(4px);
}

.game-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
  width: 50px;
}

.lotto-row:hover .game-label {
  color: var(--accent-color);
}

.balls-container {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  justify-content: center;
}

/* Lotto Ball Style */
.ball {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  font-weight: 800;
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3),
              inset 0 -4px 6px rgba(0, 0, 0, 0.2),
              inset 0 4px 6px rgba(255, 255, 255, 0.3);
  position: relative;
  transition: var(--transition-bounce);
  user-select: none;
}

.ball::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 7px;
  width: 12px;
  height: 6px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 50% / 50%;
  transform: rotate(-15deg);
}

.ball.empty {
  background: transparent;
  border: 2px dashed rgba(255, 255, 255, 0.15);
  box-shadow: none;
  color: transparent;
}

.ball.empty::after {
  display: none;
}

/* Ball color categories */
.ball-yellow {
  background: radial-gradient(circle at 35% 35%, var(--lotto-yellow-start) 0%, var(--lotto-yellow-end) 80%);
  box-shadow: 0 4px 12px var(--lotto-yellow-glow),
              inset 0 -4px 8px rgba(0, 0, 0, 0.2),
              inset 0 4px 8px rgba(255, 255, 255, 0.4);
}

.ball-blue {
  background: radial-gradient(circle at 35% 35%, var(--lotto-blue-start) 0%, var(--lotto-blue-end) 80%);
  box-shadow: 0 4px 12px var(--lotto-blue-glow),
              inset 0 -4px 8px rgba(0, 0, 0, 0.25),
              inset 0 4px 8px rgba(255, 255, 255, 0.4);
}

.ball-red {
  background: radial-gradient(circle at 35% 35%, var(--lotto-red-start) 0%, var(--lotto-red-end) 80%);
  box-shadow: 0 4px 12px var(--lotto-red-glow),
              inset 0 -4px 8px rgba(0, 0, 0, 0.25),
              inset 0 4px 8px rgba(255, 255, 255, 0.4);
}

.ball-gray {
  background: radial-gradient(circle at 35% 35%, var(--lotto-gray-start) 0%, var(--lotto-gray-end) 80%);
  box-shadow: 0 4px 12px var(--lotto-gray-glow),
              inset 0 -4px 8px rgba(0, 0, 0, 0.3),
              inset 0 4px 8px rgba(255, 255, 255, 0.4);
}

.ball-green {
  background: radial-gradient(circle at 35% 35%, var(--lotto-green-start) 0%, var(--lotto-green-end) 80%);
  box-shadow: 0 4px 12px var(--lotto-green-glow),
              inset 0 -4px 8px rgba(0, 0, 0, 0.25),
              inset 0 4px 8px rgba(255, 255, 255, 0.4);
}

/* Individual Row Copy Button */
.row-copy-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  opacity: 0;
  transform: translateX(10px);
}

.lotto-row:hover .row-copy-btn {
  opacity: 1;
  transform: translateX(0);
}

.row-copy-btn:hover {
  color: var(--accent-color);
  background: rgba(99, 102, 241, 0.1);
}

/* Animations for generating */
@keyframes ball-roll {
  0% {
    transform: translateY(-20px) rotate(0deg) scale(0.8);
    opacity: 0;
  }
  50% {
    transform: translateY(10px) rotate(180deg) scale(1.1);
  }
  100% {
    transform: translateY(0) rotate(360deg) scale(1);
    opacity: 1;
  }
}

.ball.animate-in {
  animation: ball-roll 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Right Panel: Controls and Statistics */
.control-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.btn-generate {
  position: relative;
  width: 100%;
  background: linear-gradient(135deg, var(--accent-color) 0%, #4f46e5 100%);
  border: none;
  outline: none;
  color: white;
  padding: 1.25rem 2rem;
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: 18px;
  cursor: pointer;
  overflow: hidden;
  box-shadow: 0 10px 25px -5px var(--accent-glow);
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.btn-generate:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px var(--accent-glow),
              0 0 15px rgba(99, 102, 241, 0.5);
  background: linear-gradient(135deg, #7c3aed 0%, var(--accent-hover) 100%);
}

.btn-generate:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-generate:disabled {
  opacity: 0.8;
  cursor: not-allowed;
  background: #334155;
  box-shadow: none;
}

/* Shuffle ball icon animation */
.btn-generate.loading svg {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Stats Section */
.stats-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stats-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.stat-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  padding: 1rem 1.25rem;
  border-radius: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.stat-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Highlight text */
.highlight-green { color: #34d399; }
.highlight-yellow { color: #fbbf24; }
.highlight-blue { color: #60a5fa; }
.highlight-red { color: #f87171; }

/* Tips/Analysis Container */
.tips-container {
  background: rgba(99, 102, 241, 0.05);
  border: 1px solid rgba(99, 102, 241, 0.1);
  padding: 1rem 1.25rem;
  border-radius: 16px;
  font-size: 0.85rem;
  line-height: 1.6;
  color: #a5b4fc;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.tips-container svg {
  flex-shrink: 0;
  margin-top: 0.1rem;
}

/* Floating Audio / Theme controls */
.extra-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 16px;
  padding: 0.75rem 1.25rem;
}

.toggle-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.toggle-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.toggle-switch {
  position: relative;
  width: 44px;
  height: 22px;
  background: #334155;
  border-radius: 9999px;
  transition: var(--transition-smooth);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  background: #ffffff;
  border-radius: 50%;
  transition: var(--transition-smooth);
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

input[type="checkbox"] {
  display: none;
}

input[type="checkbox"]:checked + .toggle-switch {
  background: var(--accent-color);
}

input[type="checkbox"]:checked + .toggle-switch::after {
  left: calc(100% - 19px);
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5),
              0 0 20px rgba(99, 102, 241, 0.2);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 100;
  opacity: 0;
  transition: var(--transition-bounce);
  backdrop-filter: blur(12px);
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast svg {
  color: #34d399;
}

/* Footer style */
footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: auto;
  padding-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

footer a:hover {
  color: var(--accent-color);
}

/* Partnership Form Styles */
.partnership-panel {
  margin-top: 1.5rem;
}

.panel-title {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.panel-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.partnership-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-main);
  transition: var(--transition-smooth);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-color);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.btn-submit {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  padding: 0.85rem;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-submit:hover {
  background: var(--accent-color);
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px var(--accent-glow);
}

/* Comments Section Styles */
.comments-panel {
  margin-top: 1.5rem;
}

.comment-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.comment-input-group {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
}

.comment-input-group input {
  flex: 1;
}

.btn-submit-small {
  background: var(--accent-color);
  border: none;
  color: white;
  padding: 0 1.5rem;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-submit-small:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px var(--accent-glow);
}

.btn-submit-small:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-height: 400px;
  overflow-y: auto;
  padding-right: 0.5rem;
}

/* Custom Scrollbar for comments */
.comments-list::-webkit-scrollbar {
  width: 6px;
}
.comments-list::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
  border-radius: 10px;
}
.comments-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}
.comments-list::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

.comment-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  padding: 1rem;
  border-radius: 12px;
  animation: fade-in 0.3s ease-out forwards;
}

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

.comment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.comment-author {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.comment-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.comment-content {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  word-break: break-all;
}

.comment-loading {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 1rem 0;
}