/* ============================================
   style.css - NutriCheck Styling
   Color palette: Sage green, off-white, warm tones
   ============================================ */

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

:root {
  /* Organic / Natural Color Palette */
  --sage-dark: #4a7c59;
  --sage: #6b9e7a;
  --sage-light: #a8c5b0;
  --sage-pale: #e8f2eb;
  --cream: #faf8f4;
  --white: #ffffff;
  --text-dark: #2c3e30;
  --text-mid: #5a6b5e;
  --text-light: #8fa394;
  --border: #dde8df;
  --shadow: rgba(74, 124, 89, 0.1);
  --shadow-hover: rgba(74, 124, 89, 0.2);
  --error: #c0392b;
  --error-bg: #fdf0ef;
}

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

body {
  font-family: "Inter", sans-serif;
  background-color: var(--cream);
  color: var(--text-dark);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(44, 62, 48, 0.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
  animation: fadeIn 0.25s ease;
}

.modal-overlay.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-box {
  background: var(--white);
  border-radius: 20px;
  max-width: 520px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(44, 62, 48, 0.2);
  animation: slideUp 0.3s ease;
  max-height: 90vh;
  overflow-y: auto;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  padding: 32px 32px 20px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.modal-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 10px;
}

.modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--sage-dark);
  margin-bottom: 6px;
}

.modal-subtitle {
  font-size: 0.85rem;
  color: var(--text-light);
}

.modal-body {
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.modal-rule {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.modal-rule__icon {
  font-size: 1.2rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.modal-rule__title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.modal-rule__desc {
  font-size: 0.83rem;
  color: var(--text-mid);
  line-height: 1.5;
}

.modal-rule__desc code {
  background: var(--sage-pale);
  color: var(--sage-dark);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.82rem;
}

/* Unit Tags */
.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.modal-tag {
  background: var(--sage-pale);
  color: var(--sage-dark);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid var(--sage-light);
}

/* Example Queries */
.modal-examples {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}

.modal-example {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  transition:
    background 0.2s,
    border-color 0.2s;
}

.modal-example:hover {
  background: var(--sage-pale);
  border-color: var(--sage-light);
}

.modal-example code {
  font-size: 0.85rem;
  color: var(--sage-dark);
  font-weight: 500;
}

.modal-tip {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: 8px;
}

/* Close Button */
.modal-footer {
  padding: 20px 32px 28px;
  text-align: center;
}

.btn-modal-close {
  background: var(--sage-dark);
  color: var(--white);
  border: none;
  border-radius: 10px;
  padding: 12px 36px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition:
    background 0.2s,
    transform 0.15s;
}

.btn-modal-close:hover {
  background: var(--sage);
  transform: translateY(-1px);
}

/* Header */
.header {
  background-color: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.logo-icon {
  font-size: 1.6rem;
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--sage-dark);
  letter-spacing: -0.5px;
}

.tagline {
  font-size: 0.85rem;
  color: var(--text-light);
  font-weight: 400;
}

/* Main */
.main {
  flex: 1;
  padding: 48px 0 64px;
}

/* Search Card */
.search-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 40px;
  box-shadow: 0 4px 24px var(--shadow);
  margin-bottom: 36px;
}

.search-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
  text-align: center;
}

.search-subtitle {
  font-size: 0.88rem;
  color: var(--text-light);
  margin-bottom: 28px;
  text-align: center;
}

/* Input Group */
.input-group {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.input-wrapper {
  flex: 1;
  min-width: 200px;
}

.input-wrapper--small {
  flex: 0 0 150px;
  min-width: 130px;
}

.input-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-mid);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 8px;
}

.input-field {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--cream);
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
  outline: none;
}

.input-field::placeholder {
  color: var(--text-light);
}

.input-field:focus {
  border-color: var(--sage);
  box-shadow: 0 0 0 3px rgba(107, 158, 122, 0.15);
  background: var(--white);
}

/* Button */
.btn-calculate {
  padding: 12px 28px;
  background: var(--sage-dark);
  color: var(--white);
  border: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition:
    background 0.2s,
    transform 0.15s,
    box-shadow 0.2s;
  white-space: nowrap;
  align-self: flex-end;
  height: 46px;
}

.btn-calculate:hover {
  background: var(--sage);
  box-shadow: 0 4px 16px var(--shadow-hover);
  transform: translateY(-2px);
}

.btn-calculate:active {
  transform: translateY(0);
}

.btn-calculate:disabled {
  background: var(--sage-light);
  cursor: not-allowed;
  transform: none;
}

/* Error Message */
.error-message {
  margin-top: 16px;
  padding: 12px 16px;
  background: var(--error-bg);
  border: 1px solid #e8b4b0;
  border-radius: 8px;
  color: var(--error);
  font-size: 0.88rem;
}

/* Results */
.results-section {
  animation: fadeInUp 0.35s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.results-header {
  margin-bottom: 24px;
}

.results-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-dark);
}

.results-subtitle {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-left: 8px;
}

/* Nutrition Card */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.nutrition-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 2px 12px var(--shadow);
}

.nutrition-card__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--sage-dark);
  margin-bottom: 4px;
  text-transform: capitalize;
}

.nutrition-card__serving {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.nutrition-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nutrition-list__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}

.nutrition-list__label {
  color: var(--text-mid);
}

.nutrition-list__value {
  font-weight: 600;
  color: var(--text-dark);
  background: var(--sage-pale);
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.82rem;
}

/* Calories gets special treatment */
.nutrition-list__item--calories .nutrition-list__label {
  font-weight: 600;
  color: var(--text-dark);
}

.nutrition-list__item--calories .nutrition-list__value {
  background: var(--sage-dark);
  color: var(--white);
  font-size: 0.88rem;
}

/* Utility */
.hidden {
  display: none !important;
}

/* Footer */
.footer {
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-light);
}

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

/* Responsive */
@media (max-width: 600px) {
  .modal-box {
    border-radius: 14px;
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding-left: 20px;
    padding-right: 20px;
  }

  .search-card {
    padding: 24px 20px;
  }

  .input-wrapper--small {
    flex: 1;
    min-width: 120px;
  }

  .btn-calculate {
    width: 100%;
  }
}