/* =============================================
   BUDGETNUTRI — CSS (офлайн-версия, без Google Fonts)
   ============================================= */

/* ---------- CSS-переменные ---------- */
:root {
  --green-main:   #3D9970;
  --green-light:  #D4EDDA;
  --green-dark:   #2A7A55;
  --yellow-acc:   #FFD166;
  --yellow-dark:  #E6B800;
  --orange-acc:   #FF6B35;
  --bg-page:      #F5F7F2;
  --bg-card:      #FFFFFF;
  --text-main:    #1A1A2E;
  --text-soft:    #6B7280;
  --text-white:   #FFFFFF;
  --shadow-card:  0 4px 20px rgba(61,153,112,0.13);
  --shadow-btn:   0 4px 12px rgba(61,153,112,0.35);
  --radius-card:  20px;
  --radius-btn:   14px;
  --radius-badge: 50px;

  /* Шрифты — системные стеки, работают везде без интернета */
  --font-body:    'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-display: Georgia, 'Times New Roman', serif;
}

/* ---------- Сброс ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg-page);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image:
    radial-gradient(circle at 15% 10%, rgba(61,153,112,0.08) 0%, transparent 50%),
    radial-gradient(circle at 85% 80%, rgba(255,209,102,0.10) 0%, transparent 50%);
}

/* ---------- ШАПКА ---------- */
.app-header {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green-main) 100%);
  padding: 24px 20px 20px;
  text-align: center;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 5px;
}

.logo-icon {
  font-size: 2rem;
  animation: bounce-logo 2.5s ease-in-out infinite;
}

@keyframes bounce-logo {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-5px); }
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.85rem;
  color: #fff;
  letter-spacing: -0.5px;
  font-weight: normal;
}

.logo-text strong {
  font-weight: bold;
  color: var(--yellow-acc);
}

.logo-tagline {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.78);
  font-style: italic;
}

/* ---------- ОСНОВНОЙ КОНТЕНТ ---------- */
.app-main {
  flex: 1;
  padding: 20px 16px 32px;
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---------- КАРТОЧКИ ---------- */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 22px 20px;
  box-shadow: var(--shadow-card);
  border: 1.5px solid rgba(61,153,112,0.1);
  animation: slide-up 0.4s ease both;
}

.card:nth-child(2) { animation-delay: 0.08s; }
.card:nth-child(3) { animation-delay: 0.16s; }
.card:nth-child(4) { animation-delay: 0.24s; }

@keyframes slide-up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

.card-action {
  background: linear-gradient(135deg, #FFFBEE 0%, #FFF3CD 100%);
  border-color: rgba(230,184,0,0.35);
}

.card-step {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--green-dark);
  background: var(--green-light);
  display: inline-block;
  padding: 3px 11px;
  border-radius: var(--radius-badge);
  margin-bottom: 10px;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: bold;
  color: var(--text-main);
  margin-bottom: 6px;
}

.card-hint {
  font-size: 0.84rem;
  color: var(--text-soft);
  margin-bottom: 14px;
}

/* ---------- ПРЕСЕТЫ БЮДЖЕТА ---------- */
.budget-presets {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.btn-preset {
  flex: 1;
  padding: 11px 4px;
  border: 2px solid var(--green-light);
  border-radius: var(--radius-btn);
  background: var(--green-light);
  color: var(--green-dark);
  font-family: var(--font-body);
  font-size: 0.93rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s ease;
}

.btn-preset:hover,
.btn-preset.active {
  background: var(--green-main);
  border-color: var(--green-main);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(61,153,112,0.32);
}

/* ---------- ПОЛЕ ВВОДА БЮДЖЕТА ---------- */
.budget-input-wrap {
  display: flex;
  align-items: center;
  background: #F9FBF9;
  border: 2px solid #DDE8E2;
  border-radius: var(--radius-btn);
  padding: 0 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.budget-input-wrap:focus-within {
  border-color: var(--green-main);
  box-shadow: 0 0 0 3px rgba(61,153,112,0.13);
}

.currency-symbol {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--green-main);
  margin-right: 8px;
  user-select: none;
}

.budget-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-main);
  padding: 13px 0;
  outline: none;
}

.budget-input::placeholder { color: #BDC8C2; font-weight: 400; }
.budget-input::-webkit-inner-spin-button,
.budget-input::-webkit-outer-spin-button { -webkit-appearance: none; }
.budget-input { -moz-appearance: textfield; }

/* ---------- СЕЗОНЫ ---------- */
.season-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn-season {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 10px;
  border: 2px solid #E0EBE3;
  border-radius: var(--radius-btn);
  background: #FAFCFA;
  cursor: pointer;
  transition: all 0.18s ease;
  font-family: var(--font-body);
  font-size: 1.7rem;
  line-height: 1;
}

.btn-season span {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-soft);
  line-height: 1;
}

.btn-season:hover,
.btn-season.active {
  border-color: var(--green-main);
  background: var(--green-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(61,153,112,0.2);
}

.btn-season.active span { color: var(--green-dark); }

/* ---------- ГЛАВНАЯ КНОПКА ---------- */
.btn-generate {
  width: 100%;
  padding: 17px;
  background: linear-gradient(135deg, var(--orange-acc) 0%, #FF8C42 100%);
  border: none;
  border-radius: var(--radius-btn);
  color: #fff;
  font-family: var(--font-body);
  font-size: 1.08rem;
  font-weight: 800;
  cursor: pointer;
  letter-spacing: 0.3px;
  box-shadow: 0 5px 18px rgba(255,107,53,0.38);
  transition: all 0.2s ease;
  margin-top: 8px;
}

.btn-generate:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(255,107,53,0.48);
}

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

.btn-generate.loading {
  background: #ccc;
  pointer-events: none;
  box-shadow: none;
}

/* ---------- РЕЗУЛЬТАТЫ ---------- */
.results {
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: slide-up 0.5s ease both;
}

.results.hidden { display: none !important; }

/* Сводка */
.results-summary {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.summary-item {
  background: var(--bg-card);
  border-radius: 14px;
  padding: 14px 8px;
  text-align: center;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.summary-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-soft);
}

.summary-value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: bold;
  color: var(--text-main);
}

.summary-budget .summary-value { color: var(--text-soft); }
.summary-spent  .summary-value { color: var(--orange-acc); }
.summary-change .summary-value { color: var(--green-main); }

/* Блок результата */
.result-block {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.result-block-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: bold;
  margin-bottom: 14px;
  color: var(--text-main);
}

/* ---------- КОРЗИНА ---------- */
.basket-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }

.basket-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #F8FBF8;
  border-radius: 12px;
  border-left: 4px solid var(--green-main);
  animation: fade-in 0.3s ease both;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

.basket-item-left { display: flex; align-items: center; gap: 10px; }
.basket-emoji { font-size: 1.4rem; }
.basket-name { font-weight: 700; font-size: 0.94rem; color: var(--text-main); }
.basket-qty  { font-size: 0.77rem; color: var(--text-soft); margin-top: 1px; }

.basket-price {
  font-family: var(--font-display);
  font-weight: bold;
  font-size: 1rem;
  color: var(--green-dark);
  white-space: nowrap;
}

/* ---------- ПЛАН ПИТАНИЯ ---------- */
.meal-plan { display: flex; flex-direction: column; gap: 10px; }

.meal-day { border-radius: 14px; overflow: hidden; border: 1.5px solid #EEF3EE; }

.meal-day-header {
  background: var(--green-main);
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  padding: 8px 14px;
  letter-spacing: 0.3px;
}

.meal-rows { display: flex; flex-direction: column; }

.meal-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-bottom: 1px solid #F0F4F0;
  font-size: 0.87rem;
}

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

.meal-type {
  font-weight: 800;
  color: var(--green-dark);
  min-width: 72px;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.meal-name  { color: var(--text-main); font-weight: 600; flex: 1; }
.meal-cal   { font-size: 0.74rem; color: var(--text-soft); font-weight: 700; white-space: nowrap; }

/* ---------- КНОПКА СБРОСА ---------- */
.btn-reset {
  width: 100%;
  padding: 14px;
  border: 2px solid var(--green-main);
  border-radius: var(--radius-btn);
  background: transparent;
  color: var(--green-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.18s ease;
}

.btn-reset:hover { background: var(--green-light); transform: translateY(-1px); }

/* ---------- ПОДВАЛ ---------- */
.app-footer {
  text-align: center;
  padding: 16px;
  font-size: 0.78rem;
  color: var(--text-soft);
  border-top: 1px solid #E8EFE9;
}

/* ---------- АДАПТИВ ---------- */
@media (min-width: 520px) {
  .app-main { padding: 28px 20px 40px; }
  .card { padding: 28px 26px; }
  .card-title { font-size: 1.4rem; }
}