/* ==========================================================================
   Beslenme Hesaplayıcı — Stylesheet
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  /* Surfaces */
  --color-bg: #ffffff;
  --color-surface: #f6f7f8;
  --color-surface-hover: #eef0f2;
  --color-border: #e6e8eb;

  /* Text */
  --color-text: #14181f;
  --color-text-muted: #6b7280;
  --color-text-faint: #9aa1ab;

  /* Brand */
  --color-primary: #1f8a5f;
  --color-primary-dark: #146b47;
  --color-primary-tint: #e6f4ee;
  --color-danger: #e0483f;
  --color-danger-tint: #fbe9e8;

  /* Macro identity colors — used consistently across cards & totals */
  --color-calorie: #1f8a5f;
  --color-protein: #2f6fed;
  --color-carb: #e58e1a;
  --color-fat: #e2574c;
  --color-fiber: #8b5cf6;

  /* Type */
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* Shape */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(20, 24, 31, 0.05), 0 1px 1px rgba(20, 24, 31, 0.03);
  --shadow-md: 0 8px 24px rgba(20, 24, 31, 0.06), 0 2px 6px rgba(20, 24, 31, 0.04);
  --shadow-lg: 0 20px 45px rgba(20, 24, 31, 0.10);

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 220ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

h1, h2, h3, p, ul {
  margin: 0;
}

ul {
  list-style: none;
  padding: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input {
  font-family: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ---------- Header ---------- */
.page-header {
  padding: var(--space-7) var(--space-5) var(--space-6);
  text-align: center;
}

.page-header__inner {
  max-width: 640px;
  margin: 0 auto;
}

.page-header__title {
  font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.page-header__subtitle {
  margin-top: var(--space-3);
  font-size: 1rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr) 320px;
  gap: var(--space-5);
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-5) var(--space-8);
  align-items: start;
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.panel--add,
.panel--totals {
  position: sticky;
  top: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.panel--list {
  min-height: 320px;
}

.panel__title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

/* ---------- Form fields ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field__label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.field__input {
  width: 100%;
  padding: 12px 14px;
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.field__input::placeholder {
  color: var(--color-text-faint);
}

.field__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-tint);
}

.field__input:focus-visible {
  outline: none;
}

.field__error {
  font-size: 0.8125rem;
  color: var(--color-danger);
  font-weight: 500;
  margin-top: calc(var(--space-2) * -1);
}

.field__hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: calc(var(--space-1) * -1);
}

/* ---------- Amount + unit group ---------- */
.amount-group {
  display: flex;
  gap: var(--space-2);
}

.amount-group .field__input {
  flex: 1 1 auto;
  min-width: 0;
}

.field__select {
  flex: 0 0 auto;
  width: 96px;
  padding: 12px 10px;
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.field__select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-tint);
}

.field__select:focus-visible {
  outline: none;
}

/* ---------- Profile form (height / weight / age / gender) ---------- */
.profile-form {
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.profile-form__title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-3);
}

.profile-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.field--compact .field__label {
  font-size: 0.75rem;
}

.field--compact .field__input,
.field__select--full {
  padding: 10px 12px;
  font-size: 0.875rem;
}

.field__select--full {
  width: 100%;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.field__select--full:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-tint);
}

.field__select--full:focus-visible {
  outline: none;
}

/* ---------- Daily reference card ---------- */
.reference-card {
  padding-top: var(--space-2);
}

.reference-card__title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-3);
}

.reference-card__empty {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.reference-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.reference-list[hidden] {
  display: none;
}

.reference-row__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: 6px;
}

.reference-row__label {
  display: flex;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
}

.reference-row__values {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.reference-row__current {
  font-weight: 700;
  color: var(--color-text);
}

.reference-bar {
  position: relative;
  height: 8px;
  border-radius: 999px;
  background: var(--color-surface-hover);
  overflow: hidden;
}

.reference-bar__fill {
  height: 100%;
  border-radius: 999px;
  background: var(--color-primary);
  transition: width var(--transition-base), background var(--transition-base);
}

.reference-bar__fill.is-near-limit {
  background: #d9971b;
}

.reference-bar__fill.is-over-limit {
  background: var(--color-danger);
}

.reference-row__percent {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

/* ---------- Combobox / Autocomplete ---------- */
.combobox {
  position: relative;
}

.suggestion-list {
  position: absolute;
  z-index: 20;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  max-height: 260px;
  overflow-y: auto;
  padding: var(--space-2);
  animation: dropdown-in var(--transition-fast) ease;
}

@keyframes dropdown-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.suggestion-list[hidden] {
  display: none;
}

.suggestion-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.9375rem;
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.suggestion-item span.suggestion-item__kcal {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.suggestion-item:hover,
.suggestion-item.is-active {
  background: var(--color-surface-hover);
}

.suggestion-item mark {
  background: none;
  color: var(--color-primary);
  font-weight: 700;
}

.suggestion-empty {
  padding: 10px 12px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 18px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: transform var(--transition-fast), background var(--transition-fast),
    box-shadow var(--transition-fast), border-color var(--transition-fast);
}

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

.btn--primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
}

.btn--primary:active {
  transform: scale(0.98);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-danger-tint);
  color: var(--color-danger);
  border-color: var(--color-danger-tint);
}

.btn--ghost:active {
  transform: scale(0.98);
}

/* ---------- Food list ---------- */
.food-list {
  display: grid;
  gap: var(--space-4);
}

.empty-state {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  padding: var(--space-7) var(--space-4);
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-md);
}

.food-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  animation: card-in var(--transition-base) ease;
}

.food-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.food-card.is-removing {
  animation: card-out var(--transition-base) ease forwards;
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(8px) scale(0.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes card-out {
  from { opacity: 1; transform: scale(1); max-height: 220px; }
  to { opacity: 0; transform: scale(0.96); max-height: 0; margin: 0; padding-top: 0; padding-bottom: 0; }
}

.food-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.food-card__name {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.food-card__grams {
  margin-top: 2px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.food-card__delete {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-faint);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.food-card__delete:hover {
  background: var(--color-danger-tint);
  color: var(--color-danger);
  border-color: var(--color-danger-tint);
}

.food-card__macros {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.macro-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.8125rem;
  background: var(--color-surface);
}

.macro-chip__label {
  color: var(--color-text-muted);
  font-weight: 500;
}

.macro-chip__value {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.macro-chip--protein .macro-chip__value { color: var(--color-protein); }
.macro-chip--carb .macro-chip__value { color: var(--color-carb); }
.macro-chip--fat .macro-chip__value { color: var(--color-fat); }
.macro-chip--fiber .macro-chip__value { color: var(--color-fiber); }

.food-card__calorie {
  margin-top: var(--space-3);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-calorie);
  font-variant-numeric: tabular-nums;
}

/* ---------- Macro identity dots (nutrition-label style) ---------- */
.macro-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 8px;
}

.macro-dot--calorie { background: var(--color-calorie); }
.macro-dot--protein { background: var(--color-protein); }
.macro-dot--carb { background: var(--color-carb); }
.macro-dot--fat { background: var(--color-fat); }
.macro-dot--fiber { background: var(--color-fiber); }

/* ---------- Totals card ---------- */
.totals-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  transition: box-shadow var(--transition-base);
}

.totals-card.is-updated {
  box-shadow: 0 0 0 3px var(--color-primary-tint);
}

.totals-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
}

.totals-row:last-child {
  border-bottom: none;
}

.totals-row__label {
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.totals-row__value {
  font-size: 0.9375rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.totals-row--calorie {
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-1);
  border-bottom: 1.5px solid var(--color-border);
}

.totals-row--calorie .totals-row__label {
  color: var(--color-text);
  font-weight: 700;
}

.totals-row--calorie .totals-row__value {
  font-size: 1.25rem;
  color: var(--color-calorie);
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .layout {
    grid-template-columns: 280px minmax(0, 1fr) 280px;
  }
}

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .panel--add {
    order: 1;
  }

  .panel--totals {
    order: 2;
  }

  .panel--list {
    order: 3;
  }

  .panel--add,
  .panel--totals {
    position: static;
  }
}

@media (max-width: 480px) {
  .page-header {
    padding: var(--space-6) var(--space-4) var(--space-5);
  }

  .layout {
    padding: 0 var(--space-4) var(--space-7);
    gap: var(--space-4);
  }

  .panel {
    padding: var(--space-4);
    border-radius: var(--radius-md);
  }

  .food-card {
    padding: var(--space-4);
  }

  .profile-form__grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}