/* ==========================================================================
   style.css — layout, components (cards, forms, buttons, grid)
   ========================================================================== */

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--dur-slow) var(--ease-out), color var(--dur-slow) var(--ease-out);
}

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

button { font-family: inherit; }

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  z-index: 999;
}
.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

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

/* ==========================================================================
   HEADER
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-xs);
}

.header-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
}
.brand-mark { display: inline-flex; }
.brand-name {
  font-weight: var(--fw-bold);
  font-size: var(--fs-md);
  letter-spacing: var(--ls-tight);
}

.main-nav { display: flex; align-items: center; gap: var(--space-7); }
.nav-link {
  position: relative;
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  padding-block: var(--space-2);
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-link:hover { color: var(--color-text); }
.nav-link.is-active { color: var(--color-text); }
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
}

.header-actions { display: flex; align-items: center; gap: var(--space-3); }

.theme-toggle { background: none; border: none; padding: 0; cursor: pointer; }
.theme-toggle-track {
  width: 44px; height: 24px;
  border-radius: var(--radius-full);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 2px;
  transition: background var(--dur-base) var(--ease-out);
}
.theme-toggle-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--color-card);
  box-shadow: var(--shadow-xs);
  display: grid;
  place-items: center;
  color: var(--color-primary);
  transition: transform var(--dur-base) var(--ease-out);
}
html[data-theme="dark"] .theme-toggle-thumb { transform: translateX(20px); }
.icon-sun, .icon-moon { grid-area: 1 / 1; }
.icon-moon { opacity: 0; transform: scale(0.6); transition: opacity var(--dur-base), transform var(--dur-base); }
.icon-sun { opacity: 1; transition: opacity var(--dur-base), transform var(--dur-base); }
html[data-theme="dark"] .icon-moon { opacity: 1; transform: scale(1); }
html[data-theme="dark"] .icon-sun { opacity: 0; transform: scale(0.6); }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 36px; height: 36px;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-toggle span {
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}
.menu-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: var(--space-2) var(--space-6) var(--space-5);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}
.mobile-nav-link {
  padding: var(--space-3) 0;
  text-decoration: none;
  color: var(--color-text-secondary);
  font-weight: var(--fw-medium);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav-link:last-child { border-bottom: none; }
.mobile-nav-link.is-active { color: var(--color-primary); }

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-11) var(--space-9);
}

.hero-backdrop {
  position: absolute;
  inset: -10% -10% auto -10%;
  height: 130%;
  z-index: 0;
  background:
    radial-gradient(60% 50% at 20% 10%, color-mix(in srgb, var(--color-accent) 20%, transparent), transparent 70%),
    radial-gradient(50% 45% at 85% 15%, color-mix(in srgb, var(--color-primary) 16%, transparent), transparent 70%);
  transition: opacity var(--dur-slow) var(--ease-out);
}
.hero-backdrop.mood-night {
  background:
    radial-gradient(60% 50% at 20% 10%, color-mix(in srgb, #6B8FD6 22%, transparent), transparent 70%),
    radial-gradient(50% 45% at 85% 15%, color-mix(in srgb, var(--color-primary) 20%, transparent), transparent 70%);
}
.hero-backdrop.mood-rain,
.hero-backdrop.mood-drizzle,
.hero-backdrop.mood-thunderstorm {
  background:
    radial-gradient(60% 50% at 30% 5%, color-mix(in srgb, #64748B 22%, transparent), transparent 70%),
    radial-gradient(50% 45% at 80% 20%, color-mix(in srgb, var(--color-primary) 14%, transparent), transparent 70%);
}

.hero-container { position: relative; z-index: 1; }

/* Search bar */
.search-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  max-width: 560px;
  margin-inline: auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.search-bar:focus-within {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}
.search-icon { color: var(--color-text-secondary); flex-shrink: 0; }
.search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: var(--fs-sm);
  color: var(--color-text);
  min-width: 0;
  padding-block: var(--space-2);
}
.search-input::placeholder { color: var(--color-text-secondary); }

.icon-btn {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
  color: var(--color-text-secondary);
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--dur-fast), color var(--dur-fast), transform var(--dur-fast);
}
.icon-btn:hover { color: var(--color-primary); background: color-mix(in srgb, var(--color-primary) 10%, var(--color-bg-subtle)); }
.icon-btn.is-loading svg { animation: spin 900ms linear infinite; }

.search-submit { flex-shrink: 0; padding-inline: var(--space-6); }

.suggestions {
  position: absolute;
  top: calc(100% + 8px);
  left: 0; right: 0;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  z-index: 20;
}
.suggestion-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  color: var(--color-text);
  font-size: var(--fs-sm);
}
.suggestion-item svg { color: var(--color-text-secondary); flex-shrink: 0; }
.suggestion-item:hover,
.suggestion-item.is-highlighted { background: var(--color-bg-subtle); }

/* Hero content */
.hero-content { margin-top: var(--space-10); min-height: 280px; }

.hero-skeleton {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.hero-skeleton[hidden] {
  display: none;
}
.skeleton {
  background: linear-gradient(90deg, var(--color-skeleton) 25%, color-mix(in srgb, var(--color-skeleton) 60%, #fff) 50%, var(--color-skeleton) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
  border-radius: var(--radius-md);
}
.skeleton-icon { width: 96px; height: 96px; border-radius: 50%; }
.skeleton-line { height: 20px; border-radius: var(--radius-sm); }

.hero-data { text-align: center; }
.hero-place { font-size: var(--fs-lg); font-weight: var(--fw-semibold); letter-spacing: var(--ls-snug); }
.hero-datetime { margin-top: var(--space-1); color: var(--color-text-secondary); font-size: var(--fs-sm); }

.hero-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
  margin-top: var(--space-6);
}
.hero-icon { width: 108px; height: 108px; }
.wicon { width: 100%; height: 100%; color: var(--color-primary); }

.hero-temp-block { text-align: left; }
.hero-temp {
  display: block;
  font-size: var(--fs-hero);
  font-weight: var(--fw-extrabold);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-tight);
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, var(--color-text), color-mix(in srgb, var(--color-text) 75%, var(--color-primary)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-condition { font-size: var(--fs-md); color: var(--color-text-secondary); font-weight: var(--fw-medium); }

.hero-feels-like { margin-top: var(--space-4); color: var(--color-text-secondary); font-size: var(--fs-sm); }

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-7);
  flex-wrap: wrap;
}

/* Error card */
.error-card {
  max-width: 380px;
  margin-inline: auto;
  text-align: center;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  box-shadow: var(--shadow-md);
  color: var(--color-danger);
}
.error-title { margin-top: var(--space-4); font-size: var(--fs-md); font-weight: var(--fw-semibold); color: var(--color-text); }
.error-message { margin-top: var(--space-2); color: var(--color-text-secondary); font-size: var(--fs-sm); }
.error-card .btn { margin-top: var(--space-6); }

/* History chips */
.history-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-7);
}
.history-label { font-size: var(--fs-xs); color: var(--color-text-secondary); text-transform: uppercase; letter-spacing: var(--ls-wide); }
.history-chips { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.history-chip {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-text-secondary);
  font-size: var(--fs-xs);
  cursor: pointer;
  transition: border-color var(--dur-fast), color var(--dur-fast);
}
.history-chip:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  padding: var(--space-3) var(--space-5);
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
  position: relative;
  overflow: hidden;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover { box-shadow: 0 16px 34px rgba(37, 99, 235, 0.32); transform: translateY(-1px); }

.btn-ghost {
  background: var(--color-card);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover { color: var(--color-primary); border-color: var(--color-primary); }

/* Ripple */
.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: scale(0);
  animation: ripple 550ms ease-out;
  pointer-events: none;
}
.btn-ghost .ripple { background: rgba(37, 99, 235, 0.18); }

/* ==========================================================================
   DASHBOARD
   ========================================================================== */

.dashboard { padding-block: var(--space-10) var(--space-12); }

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.section-heading--spaced { margin-top: var(--space-11); }
.section-heading h2 { font-size: var(--fs-xl); font-weight: var(--fw-bold); letter-spacing: var(--ls-snug); }
.section-sub { color: var(--color-text-secondary); font-size: var(--fs-sm); }

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.metric-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  box-shadow: var(--shadow-xs);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.metric-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.metric-icon {
  width: 34px; height: 34px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  color: var(--color-primary);
}
.metric-icon svg { width: 18px; height: 18px; }

.metric-value { font-size: var(--fs-xl); font-weight: var(--fw-bold); letter-spacing: var(--ls-snug); font-variant-numeric: tabular-nums; }
.metric-label { color: var(--color-text-secondary); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: var(--ls-wide); }

.sun-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.sun-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  box-shadow: var(--shadow-xs);
}
.sun-card .metric-icon { flex-shrink: 0; }
.sun-value { font-size: var(--fs-lg); font-weight: var(--fw-bold); font-variant-numeric: tabular-nums; }

/* Forecast */
.forecast-scroll {
  overflow-x: auto;
  padding-bottom: var(--space-3);
  scrollbar-width: thin;
}
.forecast-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(150px, 1fr);
  gap: var(--space-4);
}
.forecast-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  box-shadow: var(--shadow-xs);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.forecast-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.forecast-day { font-weight: var(--fw-semibold); font-size: var(--fs-sm); }
.forecast-icon { width: 56px; height: 56px; margin: var(--space-3) auto; }
.forecast-temp { display: flex; justify-content: center; gap: var(--space-2); font-variant-numeric: tabular-nums; }
.forecast-max { font-weight: var(--fw-bold); }
.forecast-min { color: var(--color-text-secondary); }
.forecast-desc { margin-top: var(--space-2); color: var(--color-text-secondary); font-size: var(--fs-xs); }

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-9);
  background: var(--color-bg-elevated);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--fs-sm);
}
.footer-line { font-weight: var(--fw-medium); color: var(--color-text); }
.heart { color: #EF4444; }
.footer-brand { color: var(--color-primary); font-weight: var(--fw-semibold); }
.footer-email { color: var(--color-text-secondary); text-decoration: none; }
.footer-email:hover { color: var(--color-primary); }
.footer-copy { font-size: var(--fs-xs); }

/* ==========================================================================
   TOAST
   ========================================================================== */

.toast-stack {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-3);
  z-index: 999;
  width: min(360px, calc(100vw - 32px));
}
.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(12px) scale(0.98);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.toast--visible { opacity: 1; transform: translateY(0) scale(1); }
.toast--leaving { opacity: 0; transform: translateY(8px) scale(0.98); }
.toast-icon { flex-shrink: 0; display: grid; place-items: center; }
.toast--success .toast-icon { color: var(--color-success); }
.toast--error .toast-icon { color: var(--color-danger); }
.toast--info .toast-icon { color: var(--color-primary); }
.toast-message { flex: 1; font-size: var(--fs-sm); color: var(--color-text); }
.toast-close {
  background: none; border: none; cursor: pointer;
  font-size: var(--fs-lg); line-height: 1;
  color: var(--color-text-secondary);
  padding: 0 var(--space-1);
}