/* =============================================================================
   UUK Badge Generator - Modern UI
   ============================================================================= */

/* =============================================================================
   Custom Fonts - Local Loading for Fast Performance
   ============================================================================= */

@font-face {
  font-family: "Teodor";
  src: url("assets/Teodor-Bold.otf") format("opentype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Slate Pro";
  src: url("assets/SlatePro-Light.otf") format("opentype");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Slate Pro";
  src: url("assets/SlatePro-Medium.otf") format("opentype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* =============================================================================
   Design Tokens
   ============================================================================= */

:root {
  /* Brand Colors */
  --color-primary: #0a1628;
  --color-secondary: #1a2744;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-accent-light: rgba(37, 99, 235, 0.1);
  --color-success: #059669;
  --color-warning: #d97706;
  --color-error: #dc2626;

  /* Neutrals - Refined */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows - Enhanced */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.25);
  --shadow-glow-lg: 0 0 50px rgba(37, 99, 235, 0.35);

  /* Typography */
  --font-display: "Teodor", Georgia, "Times New Roman", serif;
  --font-body: "Slate Pro", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, sans-serif;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* =============================================================================
   Reset & Base
   ============================================================================= */

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

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-800);
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.app {
  height: 100vh;
  overflow: hidden;
  position: relative;
}

/* =============================================================================
   Screens - FIXED: Proper hiding/showing
   ============================================================================= */

.screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
  overflow: hidden;
}

.screen.active {
  opacity: 1;
  visibility: visible;
  overflow-y: auto;
}

/* =============================================================================
   Login Screen - Premium Glass Design
   ============================================================================= */

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
  position: relative;
}

/* Animated background */
#login-screen::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.1) 0%,
    transparent 50%
  );
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

.login-container {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl) var(--spacing-2xl);
  width: 100%;
  max-width: 420px;
  margin: var(--spacing-lg);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border: 1px solid rgba(255, 255, 255, 0.3);
  text-align: center;
}

.logo-header {
  margin-bottom: var(--spacing-xl);
}

.logo {
  height: 50px;
  width: auto;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.login-container h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--color-gray-500);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-xl);
}

.input-group {
  margin-bottom: var(--spacing-lg);
}

.input-group input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-family);
  background: var(--color-white);
  transition: all 0.3s ease;
}

.input-group input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

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

.error-message {
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: var(--spacing-md);
  min-height: 1.25rem;
  font-weight: 500;
}

/* =============================================================================
   Buttons - Premium Gradient Style
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn:disabled::before {
  display: none;
}

.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--color-accent) 0%, #1d4ed8 100%);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

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

.btn-secondary {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  border: 1px solid var(--color-gray-200);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-gray-200);
  border-color: var(--color-gray-300);
}

.btn-small {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
}

/* =============================================================================
   Main Screen
   ============================================================================= */

#main-screen {
  background: var(--color-gray-50);
}

.app-header {
  background: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  border-bottom: 1px solid var(--color-gray-100);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-small {
  height: 36px;
  width: auto;
}

.app-header h1 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl);
  padding-bottom: 100px;
}

/* =============================================================================
   Cards - Elevated Design
   ============================================================================= */

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-100);
  transition: box-shadow var(--transition-base),
    transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}

.card h2 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.card-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* =============================================================================
   Select - Modern Dropdown
   ============================================================================= */

.select-wrapper {
  position: relative;
}

.select-wrapper select {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  padding-right: 48px;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-family);
  background: var(--color-white);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 20px;
  transition: all 0.3s ease;
}

.select-wrapper select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.select-wrapper select:disabled {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
  opacity: 0.7;
}

/* =============================================================================
   Search Box
   ============================================================================= */

.search-box {
  margin-bottom: var(--spacing-md);
}

.search-box input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-family);
  transition: all 0.3s ease;
}

.search-box input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

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

/* =============================================================================
   Table - Clean Modern Design
   ============================================================================= */

.table-container {
  overflow-x: auto;
  max-height: 450px;
  overflow-y: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
}

th {
  background: var(--color-gray-50);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-600);
  position: sticky;
  top: 0;
  z-index: 1;
  border-bottom: 2px solid var(--color-gray-200);
}

td {
  font-size: 0.9375rem;
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-100);
}

.col-checkbox {
  width: 50px;
  text-align: center;
}

.col-checkbox input {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-accent);
}

tbody tr {
  transition: background var(--transition-fast);
}

tbody tr:hover {
  background: var(--color-gray-50);
}

tbody tr.selected {
  background: var(--color-accent-light);
}

tbody tr.selected:hover {
  background: rgba(59, 130, 246, 0.12);
}

/* Speaker highlighting */
tbody tr.speaker {
  background: rgba(245, 158, 11, 0.12);
  border-left: 3px solid var(--color-warning);
}

tbody tr.speaker:hover {
  background: rgba(245, 158, 11, 0.18);
}

tbody tr.speaker.selected {
  background: linear-gradient(
    90deg,
    rgba(245, 158, 11, 0.15),
    rgba(59, 130, 246, 0.08)
  );
}

tbody tr.speaker.selected:hover {
  background: linear-gradient(
    90deg,
    rgba(245, 158, 11, 0.22),
    rgba(59, 130, 246, 0.12)
  );
}

/* Sponsor highlighting */
tbody tr.sponsor {
  background: rgba(139, 92, 246, 0.12);
  border-left: 3px solid #8b5cf6;
}

tbody tr.sponsor:hover {
  background: rgba(139, 92, 246, 0.18);
}

tbody tr.sponsor.selected {
  background: linear-gradient(
    90deg,
    rgba(139, 92, 246, 0.15),
    rgba(59, 130, 246, 0.08)
  );
}

tbody tr.sponsor.selected:hover {
  background: linear-gradient(
    90deg,
    rgba(139, 92, 246, 0.22),
    rgba(59, 130, 246, 0.12)
  );
}

/* =============================================================================
   Legend
   ============================================================================= */

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-gray-200);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.8125rem;
  color: var(--color-gray-600);
}

.legend-swatch {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.legend-swatch.speaker {
  background: rgba(245, 158, 11, 0.35);
  border-left: 3px solid var(--color-warning);
}

.legend-swatch.sponsor {
  background: rgba(139, 92, 246, 0.35);
  border-left: 3px solid #8b5cf6;
}

/* =============================================================================
   Loading
   ============================================================================= */

.loading-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-2xl);
  color: var(--color-gray-500);
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* =============================================================================
   Generate Section
   ============================================================================= */

.generate-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.selection-count {
  font-size: 1.125rem;
  color: var(--color-gray-600);
}

.selection-count span {
  font-weight: 700;
  color: var(--color-accent);
  font-size: 1.25rem;
}

#generate-btn {
  min-width: 220px;
}

/* =============================================================================
   Responsive
   ============================================================================= */

@media (max-width: 768px) {
  .login-container {
    padding: var(--spacing-xl);
    margin: var(--spacing-md);
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .generate-section {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  #generate-btn {
    width: 100%;
  }

  .table-container {
    font-size: 0.875rem;
  }

  th,
  td {
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* =============================================================================
   Modal
   ============================================================================= */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 800px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--color-gray-200);
}

.modal-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.btn-icon {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-600);
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: var(--color-gray-200);
  color: var(--color-gray-800);
}

.modal-subtitle {
  padding: 0 var(--spacing-xl);
  padding-top: var(--spacing-md);
  color: var(--color-gray-500);
  font-size: 0.9375rem;
}

.edit-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg) var(--spacing-xl);
}

.edit-card {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.edit-card:last-child {
  margin-bottom: 0;
}

.edit-card-header {
  font-weight: 600;
  color: var(--color-gray-400);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
}

.edit-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.edit-field {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.edit-field.full-width {
  grid-column: 1 / -1;
}

.edit-field label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-gray-600);
}

.edit-field input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-family: var(--font-family);
  transition: all 0.2s ease;
}

.edit-field input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  padding: var(--spacing-xl);
  border-top: 1px solid var(--color-gray-200);
}

.modal-footer .btn {
  width: auto;
}

@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    max-height: 90vh;
  }

  .edit-grid {
    grid-template-columns: 1fr;
  }

  .modal-footer {
    flex-direction: column;
  }

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