/* Essentia Scan — design system: navy/gold clinical */

:root {
  --navy: #0A1628;
  --navy-light: #132038;
  --gold: #C9A84C;
  --gold-soft: rgba(201, 168, 76, 0.15);
  --white: #FFFFFF;
  --slate: #8B95A5;
  --border: rgba(139, 149, 165, 0.25);
  --radius: 10px;
  --radius-lg: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  background: var(--navy);
  color: var(--white);
  line-height: 1.55;
  min-height: 100vh;
}

h1, h2, h3 {
  font-family: 'Inter', system-ui, sans-serif;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}

h1 { font-size: 1.625rem; font-weight: 700; }
h2 { font-size: 1.125rem; font-weight: 600; margin-top: 28px; }
h3 { font-size: 1rem; font-weight: 600; }

p { margin: 0 0 16px; color: var(--white); }

a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }

small { color: var(--slate); font-size: 0.8125rem; }

.num-tabular {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* Layout */

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  background: var(--navy-light);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.topbar .brand {
  display: flex;
  align-items: center;
}

.topbar .brand img {
  height: 32px;
  width: auto;
  display: block;
}

.topbar nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.topbar nav a {
  color: var(--slate);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.topbar nav a:hover {
  color: var(--gold);
  text-decoration: none;
}

.footer {
  text-align: center;
  padding: 32px 20px;
  font-size: 0.8125rem;
  color: var(--slate);
  border-top: 1px solid var(--border);
  margin-top: 24px;
}

.footer a { color: var(--slate); }
.footer a:hover { color: var(--gold); }

/* Cards */

.card {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  margin-bottom: 24px;
}

/* Auth pages (standalone, no topbar) */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
}

.auth-card .logo {
  display: block;
  height: 40px;
  width: auto;
  margin: 0 auto 24px;
}

.auth-card h1 {
  text-align: center;
  margin-bottom: 24px;
}

.auth-card p {
  text-align: center;
  color: var(--slate);
  font-size: 0.9375rem;
}

/* Forms */

form label {
  display: block;
  margin-bottom: 18px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--white);
}

form input,
form select,
form textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 11px 12px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--navy);
  color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

form input::placeholder { color: var(--slate); }

form input:focus,
form select:focus,
form textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-soft);
}

.checkbox-group {
  margin-bottom: 18px;
}

.checkbox-group__title {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 10px;
}

.checkbox-option {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-weight: 400;
  font-size: 0.9375rem;
  color: var(--white);
}

.checkbox-option input {
  width: auto;
  margin: 0;
}

form .consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--slate);
}

form .consent input {
  width: auto;
  margin: 3px 0 0;
}

form small {
  display: block;
  margin-top: 6px;
}

/* Buttons */

button, .btn-primary {
  display: inline-block;
  padding: 12px 24px;
  background: var(--gold);
  color: var(--navy);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  transition: opacity 0.15s ease;
}

button:hover, .btn-primary:hover {
  opacity: 0.9;
  text-decoration: none;
}

button:disabled {
  opacity: 0.5;
  cursor: default;
}

.btn-block { display: block; width: 100%; text-align: center; }

.button-link {
  display: inline-block;
  padding: 12px 24px;
  background: var(--gold);
  color: var(--navy);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
}

.button-link:hover { opacity: 0.9; text-decoration: none; }

button.button-link { border: none; cursor: pointer; font-family: inherit; }

/* Alerts */

.error {
  background: rgba(198, 40, 40, 0.12);
  border: 1px solid rgba(198, 40, 40, 0.4);
  color: #f28b82;
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

/* Upload screen */

.upload-card {
  text-align: center;
  padding: 40px 24px;
}

.upload-card input[type="file"] {
  background: var(--navy);
  border: 1px dashed var(--border);
  padding: 24px 12px;
  text-align: center;
  color: var(--slate);
}

.upload-hint {
  font-size: 0.8125rem;
  color: var(--gold);
  margin: 12px 0 16px;
}

/* Dashboard */

.stat-line {
  font-size: 1.0625rem;
}

.stat-line strong {
  color: var(--gold);
}

.scan-history {
  list-style: none;
  padding: 0;
  margin: 0;
}

.scan-history li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  color: var(--slate);
}

.scan-history li:last-child { border-bottom: none; }

.scan-history li {
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
}

.scan-history li > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pagination {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
}

/* Result card — signature element */

.result-card {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
}

.result-card__header {
  padding: 24px 24px 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(201, 168, 76, 0.08), transparent);
}

.result-card__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 8px;
}

.result-card__hero {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.result-card__hero-value {
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--white);
}

.result-card__hero-unit {
  font-size: 1rem;
  color: var(--slate);
  font-weight: 500;
}

.overall-confidence-badge {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 600;
}

.overall-confidence-badge--alta {
  background: rgba(76, 201, 122, 0.15);
  color: #4CC97A;
}

.overall-confidence-badge--media {
  background: rgba(230, 184, 60, 0.15);
  color: #E6B83C;
}

.overall-confidence-badge--baixa {
  background: rgba(230, 126, 60, 0.15);
  color: #E67E3C;
}

.glycemic-index-line {
  font-size: 0.8125rem;
  color: var(--slate);
  margin-top: 8px;
}

.tdee-block { padding: 20px 24px; border-bottom: 1px solid var(--border); }

.tdee-block__label {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--slate);
  margin-bottom: 8px;
}

.tdee-block__label strong { color: var(--gold); }

.tdee-bar {
  height: 6px;
  border-radius: 3px;
  background: rgba(139, 149, 165, 0.2);
  overflow: hidden;
}

.tdee-bar__fill {
  height: 100%;
  background: var(--gold);
  border-radius: 3px;
}

.macro-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
}

.macro-cell {
  background: var(--navy-light);
  padding: 18px 12px;
  text-align: center;
}

.macro-cell__label {
  font-size: 0.75rem;
  color: var(--slate);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.macro-cell__value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
}

.result-card__foods {
  padding: 20px 24px;
}

.food-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.food-item:last-child { border-bottom: none; }

.food-item__name {
  font-weight: 600;
  color: var(--white);
  margin-bottom: 2px;
}

.food-item__desc {
  font-size: 0.875rem;
  color: var(--slate);
}

.food-item__calories {
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
}

.confidence-badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 100px;
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.confidence-badge--high { background: var(--gold-soft); color: var(--gold); }
.confidence-badge--medium { background: rgba(139, 149, 165, 0.18); color: var(--slate); }
.confidence-badge--low { background: rgba(139, 149, 165, 0.1); color: var(--slate); }

.corrected-badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--gold-soft);
  color: var(--gold);
}

.correction-form {
  margin: 0 24px 24px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.correction-form summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--gold);
}

.correction-row {
  margin-top: 14px;
}

.correction-row label {
  margin-bottom: 6px;
}

.correction-form textarea {
  margin-top: 14px;
}

.correction-form button {
  margin-top: 14px;
}

.disclaimer {
  margin: 0 24px 24px;
  padding: 12px 14px;
  background: rgba(201, 168, 76, 0.08);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.8125rem;
  color: var(--slate);
}

.result-card__notes {
  margin: 0 24px 24px;
  padding: 12px 14px;
  background: rgba(139, 149, 165, 0.06);
  border-radius: var(--radius);
  font-size: 0.8125rem;
  color: var(--slate);
}

.result-card__section {
  margin: 0 24px 24px;
}

.result-card__section h3 {
  margin-bottom: 10px;
}

.result-card__section p {
  font-size: 0.875rem;
  color: var(--slate);
  margin-bottom: 10px;
}

.guidance-list {
  margin: 0 0 10px;
  padding-left: 18px;
  color: var(--slate);
  font-size: 0.875rem;
}

.guidance-list li {
  margin-bottom: 8px;
}

.result-actions { padding: 0 24px 24px; }

/* Mobile */

@media (max-width: 480px) {
  .macro-grid { grid-template-columns: repeat(2, 1fr); }
  .result-card__hero-value { font-size: 2.25rem; }
  .container { padding: 20px 16px 48px; }
  .card, .auth-card { padding: 24px 18px; }
}