/* ===================================================================
   FoodSafetyScanner — Health / Organic Theme with RAG
   =================================================================== */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Greens */
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-200: #bbf7d0;
  --green-300: #86efac;
  --green-400: #4ade80;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;
  --green-800: #166534;
  --green-900: #14532d;

  /* Neutrals */
  --neutral-50: #fafafa;
  --neutral-100: #f5f5f5;
  --neutral-200: #e5e5e5;
  --neutral-300: #d4d4d4;
  --neutral-400: #a3a3a3;
  --neutral-500: #737373;
  --neutral-600: #525252;
  --neutral-700: #404040;
  --neutral-800: #262626;
  --neutral-900: #171717;

  /* Accents */
  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --amber-600: #d97706;
  --red-400: #f87171;
  --red-500: #ef4444;
  --red-600: #dc2626;
  --blue-500: #3b82f6;

  /* Surfaces */
  --bg-body: #f0faf3;
  --bg-card: rgba(255, 255, 255, 0.80);
  --bg-card-solid: #ffffff;
  --border-card: rgba(22, 163, 74, 0.15);
  --shadow-card: 0 8px 32px rgba(22, 163, 74, 0.10), 0 1.5px 6px rgba(0, 0, 0, 0.04);

  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  color: var(--neutral-800);
  background: var(--bg-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
}

/* Subtle leaf pattern background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 15% 25%, rgba(34, 197, 94, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 85% 75%, rgba(34, 197, 94, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(34, 197, 94, 0.02) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Layout ---------- */
.container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 640px;
  padding: 2rem 1.25rem 4rem;
}

/* ---------- Header ---------- */
.header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.header__icon {
  font-size: 3rem;
  margin-bottom: .5rem;
  filter: drop-shadow(0 2px 8px rgba(22, 163, 74, 0.25));
  animation: float 3s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-6px);
  }
}

.header__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2rem;
  background: linear-gradient(135deg, var(--green-700), var(--green-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.header__subtitle {
  font-size: 0.95rem;
  color: var(--neutral-500);
  margin-top: .35rem;
  font-weight: 400;
}

/* ---------- Upload Card ---------- */
.upload-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid var(--border-card);
  border-radius: 1.25rem;
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.upload-card:hover {
  border-color: rgba(22, 163, 74, 0.30);
  box-shadow: 0 12px 40px rgba(22, 163, 74, 0.14), 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Drop zone */
.dropzone {
  position: relative;
  border: 2px dashed var(--green-300);
  border-radius: 1rem;
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s var(--ease-out-expo);
  background: var(--green-50);
  overflow: visible;
}

.dropzone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.05), rgba(34, 197, 94, 0.02));
  opacity: 0;
  transition: opacity 0.3s;
}

.dropzone:hover,
.dropzone.drag-over {
  border-color: var(--green-500);
  background: var(--green-100);
  transform: scale(1.01);
}

.dropzone:hover::before,
.dropzone.drag-over::before {
  opacity: 1;
}

.dropzone__icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  display: block;
  color: var(--green-500);
  transition: transform 0.3s var(--ease-out-expo);
}

/* Material Symbols sizing inside headings */
.report-card__heading .material-symbols-outlined,
.ingredients-card__heading .material-symbols-outlined {
  font-size: 1.3rem;
  vertical-align: middle;
}

/* Material Symbols inside ingredient risk icons */
.ingredient-item__icon .material-symbols-outlined {
  font-size: 1.1rem;
  vertical-align: middle;
}

.ingredient-item--good .ingredient-item__icon .material-symbols-outlined {
  color: var(--green-600);
}

.ingredient-item--moderate .ingredient-item__icon .material-symbols-outlined {
  color: var(--amber-500);
}

.ingredient-item--bad .ingredient-item__icon .material-symbols-outlined {
  color: var(--red-500);
}

.ingredient-item--neutral .ingredient-item__icon .material-symbols-outlined {
  color: var(--neutral-500);
}

.dropzone:hover .dropzone__icon {
  transform: scale(1.15) translateY(-2px);
}

.dropzone__text {
  font-size: 0.95rem;
  color: var(--neutral-600);
  line-height: 1.6;
}

.dropzone__text strong {
  color: var(--green-600);
  font-weight: 600;
}

.dropzone__hint {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--neutral-400);
}

/* Hidden file input */
.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* Preview */
.preview-area {
  margin-top: 1.25rem;
  display: none;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  background: var(--neutral-50);
  border-radius: 0.75rem;
  border: 1px solid var(--neutral-200);
  animation: slideUp 0.35s var(--ease-out-expo) both;
}

.preview-area.visible {
  display: flex;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.preview-area__img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 0.5rem;
  border: 1px solid var(--neutral-200);
}

.preview-area__info {
  flex: 1;
  min-width: 0;
}

.preview-area__name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--neutral-700);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preview-area__size {
  font-size: 0.75rem;
  color: var(--neutral-400);
}

.preview-area__remove {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--neutral-400);
  transition: color 0.2s;
  padding: 0.25rem;
}

.preview-area__remove:hover {
  color: var(--red-500);
}

/* Analyze button */
.btn-analyze {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  margin-top: 1.5rem;
  padding: 0.9rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: #fff;
  background: linear-gradient(135deg, var(--green-600), var(--green-500));
  border: none;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.3s var(--ease-out-expo);
  box-shadow: 0 4px 14px rgba(22, 163, 74, 0.30);
  position: relative;
  overflow: hidden;
}

.btn-analyze::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.btn-analyze:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(22, 163, 74, 0.35);
}

.btn-analyze:hover:not(:disabled)::after {
  opacity: 1;
}

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

.btn-analyze:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* ---------- Loader ---------- */
.loader {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
  animation: fadeIn 0.4s ease both;
}

.loader.visible {
  display: flex;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.loader__spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--green-100);
  border-top-color: var(--green-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loader__text {
  font-size: 0.9rem;
  color: var(--neutral-500);
  font-weight: 500;
  transition: opacity 0.2s ease;
}

/* ---------- Error ---------- */
.error-card {
  display: none;
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--red-500);
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideUp 0.35s var(--ease-out-expo) both;
}

.error-card.visible {
  display: block;
}

/* ---------- Result Section ---------- */
.result {
  display: none;
  margin-top: 2.5rem;
  animation: slideUp 0.5s var(--ease-out-expo) both;
}

.result.visible {
  display: block;
}


/* ===================================================================
   SCORE GAUGE
   =================================================================== */
.score-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 2rem;
}

.gauge {
  position: relative;
  width: 160px;
  height: 160px;
}

.gauge__svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.gauge__bg {
  fill: none;
  stroke: var(--neutral-200);
  stroke-width: 10;
}

.gauge__fill {
  fill: none;
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.2s var(--ease-out-expo), stroke 0.5s;
}

.gauge__score {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.gauge__number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.75rem;
  line-height: 1;
  letter-spacing: -0.03em;
}

.gauge__label {
  font-size: 0.75rem;
  color: var(--neutral-400);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
  font-weight: 600;
}

/* Verdict badge */
.verdict-badge {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.45rem 1.25rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 2rem;
  letter-spacing: 0.02em;
}

.verdict-badge--good {
  background: var(--green-100);
  color: var(--green-700);
}

.verdict-badge--moderate {
  background: #fef3c7;
  color: #92400e;
}

.verdict-badge--bad {
  background: #fee2e2;
  color: #991b1b;
}

/* ===================================================================
   REPORT CARD
   =================================================================== */
.report-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: 1rem;
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.report-card__heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--green-700);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.report-card__text {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--neutral-600);
}

/* ===================================================================
   INGREDIENTS BREAKDOWN CARD
   =================================================================== */
.ingredients-card {
  display: none;
  margin-top: 1.5rem;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: 1rem;
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.ingredients-card__heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--green-700);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ingredients-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* Individual ingredient item */
.ingredient-item {
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--neutral-200);
  background: var(--neutral-50);
  animation: ingredientSlide 0.4s var(--ease-out-expo) both;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ingredient-item:hover {
  transform: translateX(4px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

@keyframes ingredientSlide {
  from {
    opacity: 0;
    transform: translateX(-12px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Risk-based left border */
.ingredient-item--good {
  border-left: 3px solid var(--green-500);
  background: rgba(240, 253, 244, 0.6);
}

.ingredient-item--moderate {
  border-left: 3px solid var(--amber-500);
  background: rgba(254, 243, 199, 0.3);
}

.ingredient-item--bad {
  border-left: 3px solid var(--red-500);
  background: rgba(254, 226, 226, 0.3);
}

.ingredient-item--neutral {
  border-left: 3px solid var(--neutral-400);
}

.ingredient-item__header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ingredient-item__icon {
  font-size: 0.9rem;
  flex-shrink: 0;
}

.ingredient-item__name {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--neutral-800);
  flex: 1;
}

.ingredient-item__badge {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.ingredient-item__badge--good {
  background: var(--green-100);
  color: var(--green-700);
}

.ingredient-item__badge--moderate {
  background: #fef3c7;
  color: #92400e;
}

.ingredient-item__badge--bad {
  background: #fee2e2;
  color: #991b1b;
}

.ingredient-item__badge--neutral,
.ingredient-item__badge--unknown {
  background: var(--neutral-200);
  color: var(--neutral-600);
}

.ingredient-item__meta {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.35rem;
  padding-left: 1.5rem;
}

.ingredient-item__category {
  font-size: 0.75rem;
  color: var(--neutral-500);
  font-weight: 500;
}

.ingredient-item__effect {
  font-size: 0.75rem;
  color: var(--neutral-400);
  font-style: italic;
}

/* ===================================================================
   BUTTONS
   =================================================================== */
.btn-scan-again {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  margin-top: 1.5rem;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--green-700);
  background: var(--green-50);
  border: 1.5px solid var(--green-200);
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.3s var(--ease-out-expo);
}

.btn-scan-again:hover {
  background: var(--green-100);
  border-color: var(--green-400);
  transform: translateY(-1px);
}

/* ---------- Footer ---------- */
.footer {
  margin-top: 3rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--neutral-400);
}

.footer a {
  color: var(--green-600);
  text-decoration: none;
  font-weight: 500;
}

.footer a:hover {
  text-decoration: underline;
}

/* ===================================================================
   INLINE "WHAT'S A FOOD LABEL?" EXAMPLE (inside dropzone)
   =================================================================== */
.dropzone__example {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.85rem;
  z-index: 5;
}

.dropzone__example-label {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--green-600);
  cursor: pointer;
  border-bottom: 1px dashed var(--green-400);
  padding-bottom: 1px;
  transition: color 0.2s;
}

.dropzone__example-label .material-symbols-outlined {
  font-size: 0.95rem;
}

.dropzone__example-label:hover {
  color: var(--green-700);
}

/* Popup card — shown via .open class (click toggle) */
.dropzone__example-popup {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  width: 230px;
  padding: 0.75rem;
  background: #fff;
  border: 1.5px solid var(--green-200);
  border-radius: 0.85rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.14), 0 0 0 1px rgba(22, 163, 74, 0.06);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s var(--ease-out-expo);
  pointer-events: none;
  z-index: 10;
}

/* Arrow pointing down */
.dropzone__example-popup::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 7px solid transparent;
  border-top-color: #fff;
}

/* Show popup when .open is toggled */
.dropzone__example.open .dropzone__example-popup {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.dropzone__example-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 0.55rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.dropzone__example-text {
  margin-top: 0.5rem;
  font-size: 0.72rem;
  line-height: 1.45;
  color: var(--neutral-600);
  text-align: center;
}

.dropzone__example-text strong {
  color: var(--green-700);
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
  .container {
    padding: 1.25rem 1rem 3rem;
  }

  .header__title {
    font-size: 1.6rem;
  }

  .dropzone {
    padding: 2rem 1rem;
  }

  .gauge {
    width: 130px;
    height: 130px;
  }

  .gauge__number {
    font-size: 2.25rem;
  }

  .report-card {
    padding: 1.25rem;
  }

  .ingredients-card {
    padding: 1.25rem;
  }

  .ingredient-item__meta {
    flex-direction: column;
    gap: 0.15rem;
  }

  .dropzone__example-popup {
    width: 180px;
  }
}