/* Converting from Tailwind to custom CSS with coral/teal color scheme */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Coral colors */
  --coral-50: #fef7f4;
  --coral-100: #fdeee7;
  --coral-200: #fbd5c4;
  --coral-300: #f8b89a;
  --coral-400: #f49670;
  --coral-500: #f07650;
  --coral-600: #e85d3d;
  --coral-700: #c44a2f;

  /* Warm neutrals */
  --warm-50: #fefcf9;
  --warm-100: #fdf8f1;
  --warm-200: #f9ede0;
  --warm-25: #f4dcc6;
  --warm-300: #edc4a0;
  --warm-400: #e4a574;

  /* Teal colors */
  --teal-50: #f0fdfa;
  --teal-100: #ccfbf1;
  --teal-200: #99f6e4;
  --teal-300: #5eead4;
  --teal-400: #2dd4bf;
  --teal-500: #14b8a6;
  --teal-600: #0d9488;
  --teal-700: #0f766e;

  /* Emerald for authentic results */
  --emerald-50: #ecfdf5;
  --emerald-600: #059669;
  --emerald-200: #84cc16;

  /* Grays */
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-500: #6b7280;
  --slate-50: #f9fafb;
  --white: #ffffff;
  --black: #000000;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: var(--slate-800);
  background: linear-gradient(135deg, var(--warm-50) 0%, var(--white) 50%, var(--teal-50) 100%);
  min-height: 100vh;
}

.app {
  min-height: 100vh;
}

/* Header Styles */
.header {
  position: relative;
  background: linear-gradient(135deg, var(--coral-500) 0%, var(--coral-600) 100%);
  color: var(--white);
  overflow: hidden;
}

.header-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.1);
}

.header-content {
  position: relative;
  padding: 3rem 1rem;
  text-align: center;
  max-width: 64rem;
  margin: 0 auto;
}

.header-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.header-icon > div {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  padding: 1rem;
}

.shield-icon {
  width: 3rem;
  height: 3rem;
  color: var(--white);
}

.header-title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.header-subtitle {
  font-size: 1.25rem;
  color: var(--coral-100);
  max-width: 32rem;
  margin: 0 auto;
  line-height: 1.7;
}

/* Main Content */
.main-content {
  padding: 2rem 1rem;
}

.container {
  max-width: 42rem;
  margin: 0 auto;
}

.card {
  background: var(--white);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid var(--warm-200);
}

.section {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--warm-100);
}

.section:last-child {
  border-bottom: none;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--slate-800);
  margin-bottom: 1rem;
}

.zap-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--coral-500);
}

.upload-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--teal-600);
}

/* Type Selection */
.type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.type-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  border: 2px solid var(--warm-200);
  border-radius: 0.75rem;
  background: var(--white);
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}

.type-button:hover {
  border-color: var(--coral-300);
  background: var(--warm-50);
}

.type-button.active {
  border-color: var(--coral-500);
  background: var(--coral-50);
  color: var(--coral-700);
}

.type-icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* File Upload */
.upload-area {
  position: relative;
  border: 2px dashed var(--warm-300);
  border-radius: 1rem;
  padding: 3rem 2rem;
  text-align: center;
  transition: all 0.2s ease;
  cursor: pointer;
}

.upload-area:hover {
  border-color: var(--coral-300);
  background: var(--warm-50);
}

.upload-area.drag-active {
  border-color: var(--coral-400);
  background: var(--coral-50);
}

.upload-area.has-file {
  border-color: var(--teal-400);
  background: var(--teal-50);
}

.file-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.upload-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.upload-icon-container {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: var(--warm-100);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.upload-area.has-file .upload-icon-container {
  background: var(--teal-100);
}

.upload-default-icon,
.type-icon {
  width: 2rem;
  height: 2rem;
  color: var(--warm-500);
}

.upload-area.has-file .type-icon {
  color: var(--teal-600);
}

.upload-main-text {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--slate-700);
}

.upload-sub-text {
  font-size: 0.875rem;
  color: var(--slate-500);
  margin-top: 0.25rem;
}

.file-info {
  color: var(--teal-700);
}

.file-name {
  font-size: 1.125rem;
  font-weight: 500;
}

.file-size {
  font-size: 0.875rem;
  color: var(--teal-600);
}

/* File Preview Styles */
.file-preview {
  margin-top: 1.5rem;
  border: 1px solid var(--warm-200);
  border-radius: 1rem;
  overflow: hidden;
  background: var(--white);
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--warm-50);
  border-bottom: 1px solid var(--warm-200);
}

.preview-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--slate-700);
  margin: 0;
}

.remove-file-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: none;
  background: var(--coral-100);
  color: var(--coral-600);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.remove-file-btn:hover {
  background: var(--coral-200);
  color: var(--coral-700);
}

.remove-file-btn svg {
  width: 1rem;
  height: 1rem;
}

.preview-content {
  padding: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
  background: var(--warm-25);
}

.preview-image {
  max-width: 100%;
  max-height: 300px;
  border-radius: 0.5rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  object-fit: contain;
}

.preview-video {
  max-width: 100%;
  max-height: 300px;
  border-radius: 0.5rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.preview-audio {
  width: 100%;
  max-width: 400px;
}

.audio-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  background: var(--teal-50);
  border-radius: 0.75rem;
  border: 2px dashed var(--teal-200);
}

.audio-icon {
  width: 3rem;
  height: 3rem;
  color: var(--teal-500);
}

.audio-info {
  text-align: center;
}

.audio-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 0.25rem;
}

.audio-subtitle {
  font-size: 0.875rem;
  color: var(--slate-500);
}

.file-details {
  padding: 1rem 1.5rem;
  background: var(--warm-50);
  border-top: 1px solid var(--warm-200);
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.detail-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--slate-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.detail-value {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-700);
}

/* Analyze Button */
.analyze-button {
  width: 100%;
  background: linear-gradient(135deg, var(--coral-500) 0%, var(--coral-600) 100%);
  color: var(--white);
  font-weight: 600;
  padding: 1rem 1.5rem;
  border: none;
  border-radius: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 10px 25px -5px rgba(240, 118, 80, 0.4);
  transform: scale(1);
}

.analyze-button:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--coral-600) 0%, var(--coral-700) 100%);
  box-shadow: 0 20px 40px -10px rgba(240, 118, 80, 0.5);
  transform: scale(1.02);
}

.analyze-button:disabled {
  background: linear-gradient(135deg, var(--warm-300) 0%, var(--warm-400) 100%);
  cursor: not-allowed;
  box-shadow: 0 5px 15px -5px rgba(0, 0, 0, 0.1);
  transform: scale(1);
}

.button-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.button-icon {
  width: 1.25rem;
  height: 1.25rem;
}

.loading-spinner {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid var(--white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Results */
.result-card {
  margin-top: 2rem;
  padding: 1.5rem 2rem;
  border-radius: 1.5rem;
  border: 2px solid;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.result-card.authentic {
  border-color: var(--emerald-200);
  background: var(--emerald-50);
}

.result-card.fake {
  border-color: var(--coral-200);
  background: var(--coral-50);
}

.result-content {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.result-icon {
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
}

.result-icon.authentic {
  color: var(--emerald-600);
}

.result-icon.fake {
  color: var(--coral-600);
}

.result-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--slate-800);
  margin-bottom: 0.5rem;
}

.result-description {
  font-size: 1.125rem;
  color: var(--slate-700);
  line-height: 1.7;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    padding: 2rem 1rem;
  }

  .header-title {
    font-size: 2rem;
  }

  .header-subtitle {
    font-size: 1.125rem;
  }

  .section {
    padding: 1.25rem 1.5rem;
  }

  .upload-area {
    padding: 2rem 1rem;
  }

  .type-grid {
    gap: 0.5rem;
  }

  .type-button {
    padding: 0.75rem;
  }

  .preview-content {
    padding: 1rem;
    min-height: 150px;
  }

  .preview-image,
  .preview-video {
    max-height: 200px;
  }

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

@media (max-width: 480px) {
  .main-content {
    padding: 1rem 0.5rem;
  }

  .header-title {
    font-size: 1.75rem;
  }

  .section {
    padding: 1rem;
  }

  .result-card {
    padding: 1.25rem 1rem;
  }

  .preview-header {
    padding: 0.75rem 1rem;
  }

  .preview-content {
    padding: 0.75rem;
    min-height: 120px;
  }

  .file-details {
    padding: 0.75rem 1rem;
  }
}