/* ============================================================
   Snow Day Calculator — Design System
   Mobile-first, Bootstrap 5 + custom tokens
   ============================================================ */

/* ── Google Fonts are loaded in base.html ── */

/* ── CSS Custom Properties ───────────────────────────────── */
:root {
  --clr-primary:              #2b5bb5;
  --clr-primary-container:    #eaeeff;
  --clr-on-primary:           #ffffff;
  --clr-on-primary-container: #3c68c3;
  --clr-secondary:            #21638d;
  --clr-secondary-container:  #95cfff;
  --clr-on-secondary:         #ffffff;
  --clr-surface:              #f7f9fb;
  --clr-surface-low:          #f2f4f6;
  --clr-surface-container:    #eceef0;
  --clr-surface-high:         #e6e8ea;
  --clr-surface-highest:      #e0e3e5;
  --clr-surface-lowest:       #ffffff;
  --clr-on-surface:           #191c1e;
  --clr-on-surface-variant:   #424848;
  --clr-outline-variant:      #c2c8c7;
  --clr-tertiary-container:   #e2f1fc;
  --clr-on-tertiary:          #ffffff;
  --clr-tertiary:             #526069;
  --clr-error:                #c0392b;

  --font-headline: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body:     'Manrope', system-ui, sans-serif;

  --radius-card: 1.25rem;
  --radius-pill: 9999px;
  --shadow-soft: 0 8px 32px rgba(25, 28, 30, 0.07);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--clr-surface);
  color: var(--clr-on-surface);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headline);
  font-weight: 800;
  color: var(--clr-on-surface);
}

/* ── Navbar ───────────────────────────────────────────────── */
.sdc-navbar {
  background: rgba(247, 249, 251, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-outline-variant);
  position: sticky;
  top: 0;
  z-index: 1030;
}

.sdc-navbar .navbar-brand {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--clr-primary);
  letter-spacing: -0.02em;
}

.sdc-navbar .nav-link {
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--clr-on-surface-variant);
  transition: color 0.15s;
}

.sdc-navbar .nav-link:hover,
.sdc-navbar .nav-link.active {
  color: var(--clr-primary);
}

/* ── Footer ───────────────────────────────────────────────── */
.sdc-footer {
  background: var(--clr-surface-container);
  border-top: 1px solid var(--clr-outline-variant);
  padding: 2.5rem 1rem;
}

.sdc-footer .brand {
  font-family: var(--font-headline);
  font-weight: 700;
  color: var(--clr-primary);
}

.sdc-footer a {
  color: var(--clr-on-surface-variant);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.15s;
}

.sdc-footer a:hover { color: var(--clr-primary); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn-sdc-primary {
  background: linear-gradient(135deg, var(--clr-primary) 0%, #5a86d8 100%);
  color: var(--clr-on-primary);
  border: none;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 700;
  padding: 0.75rem 2rem;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 16px rgba(43, 91, 181, 0.2);
}

.btn-sdc-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 20px rgba(43, 91, 181, 0.3);
  color: var(--clr-on-primary);
}

.btn-sdc-primary:active { transform: scale(0.97); }

.btn-sdc-outline {
  background: transparent;
  color: var(--clr-primary);
  border: 2px solid var(--clr-primary);
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-weight: 600;
  padding: 0.65rem 1.75rem;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.btn-sdc-outline:hover {
  background: var(--clr-primary-container);
  color: var(--clr-primary);
}

/* ── Cards ────────────────────────────────────────────────── */
.sdc-card {
  background: var(--clr-surface-lowest);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  padding: 1.75rem;
}

.sdc-card-glass {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-card);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: var(--shadow-soft);
  padding: 1.75rem;
}

.sdc-card-tinted {
  background: var(--clr-surface-low);
  border-radius: var(--radius-card);
  padding: 1.75rem;
  transition: background 0.2s;
}

.sdc-card-tinted:hover {
  background: var(--clr-surface-lowest);
  box-shadow: var(--shadow-soft);
}

/* ── Hero Section ─────────────────────────────────────────── */
.sdc-hero {
  padding: 4rem 0 3rem;
  background: radial-gradient(ellipse 70% 60% at 50% 0%, var(--clr-primary-container) 0%, var(--clr-surface) 100%);
}

.sdc-hero h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.sdc-hero .lead {
  color: var(--clr-on-surface-variant);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  line-height: 1.65;
}

.text-gradient {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Search Form ──────────────────────────────────────────── */
.sdc-search-pill {
  display: flex;
  align-items: center;
  background: var(--clr-surface-lowest);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-soft);
  padding: 0.35rem 0.35rem 0.35rem 1.25rem;
  max-width: 520px;
  border: 1.5px solid var(--clr-outline-variant);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.sdc-search-pill:focus-within {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(43, 91, 181, 0.12);
}

.sdc-search-pill input {
  border: none;
  background: transparent;
  flex: 1;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--clr-on-surface);
  outline: none;
  padding: 0.5rem 0.75rem;
}

.sdc-search-pill input::placeholder {
  color: var(--clr-on-surface-variant);
  opacity: 0.7;
}

/* ── Autocomplete Suggestions ─────────────────────────────── */
#suggestions {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--clr-surface-lowest);
  border-radius: 1rem;
  box-shadow: 0 8px 32px rgba(25, 28, 30, 0.12);
  border: 1px solid var(--clr-outline-variant);
  overflow: hidden;
  z-index: 200;
}

.suggestion-item {
  padding: 0.8rem 1.25rem;
  cursor: pointer;
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--clr-on-surface);
  transition: background 0.1s;
}

.suggestion-item:hover,
.suggestion-item.active {
  background: var(--clr-primary-container);
  color: var(--clr-primary);
}

/* ── Probability Display ──────────────────────────────────── */
.prob-gauge-wrap {
  position: relative;
  width: 200px;
  height: 200px;
  margin: 0 auto;
}

@media (min-width: 576px) {
  .prob-gauge-wrap { width: 240px; height: 240px; }
}

.prob-badge {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 700;
}

.prob-badge-high    { background: var(--clr-primary); color: #fff; }
.prob-badge-medium  { background: rgba(60, 107, 194, 0.18); color: var(--clr-primary); }
.prob-badge-low     { background: var(--clr-primary-container); color: var(--clr-primary); border: 1px solid rgba(43, 91, 181, 0.3); }
.prob-badge-zero    { background: var(--clr-surface-high); color: var(--clr-on-surface-variant); }

.prob-text-high    { color: var(--clr-primary); }
.prob-text-medium  { color: var(--clr-secondary); }
.prob-text-low     { color: var(--clr-on-surface-variant); }

/* ── 5-Day Forecast Table ─────────────────────────────────── */
.forecast-table {
  background: var(--clr-surface-low);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.forecast-table .forecast-header {
  background: var(--clr-surface-container);
  padding: 0.85rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-on-surface-variant);
}

.forecast-row {
  padding: 0.9rem 1.25rem;
  border-top: 1px solid var(--clr-surface-container);
  transition: background 0.15s;
}

.forecast-row:hover {
  background: var(--clr-surface-highest);
}

.forecast-row.active-day {
  background: var(--clr-primary-container);
}

/* ── Factor Cards ─────────────────────────────────────────── */
.factor-icon-wrap {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Section Labels ───────────────────────────────────────── */
.section-label {
  display: inline-block;
  background: var(--clr-primary-container);
  color: var(--clr-primary);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.75rem;
  margin-bottom: 0.75rem;
}

/* ── CTA Banner ───────────────────────────────────────────── */
.sdc-cta-banner {
  background: linear-gradient(135deg, var(--clr-secondary) 0%, var(--clr-primary) 100%);
  border-radius: 2rem;
  padding: 3rem 2rem;
  position: relative;
  overflow: hidden;
  color: var(--clr-on-primary);
}

.sdc-cta-banner h2 { color: #fff; }
.sdc-cta-banner p  { color: rgba(255, 255, 255, 0.8); }

/* ── Blog Cards ───────────────────────────────────────────── */
.blog-card {
  background: var(--clr-surface-lowest);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  height: 100%;
}

.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(25, 28, 30, 0.1);
}

.blog-card-body { padding: 1.5rem; }

.blog-card .post-date {
  font-size: 0.8rem;
  color: var(--clr-on-surface-variant);
  font-weight: 500;
}

.blog-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0.4rem 0 0.6rem;
  color: var(--clr-on-surface);
}

.blog-card .excerpt {
  font-size: 0.9rem;
  color: var(--clr-on-surface-variant);
  line-height: 1.55;
}

.blog-card .read-more {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--clr-primary);
  text-decoration: none;
}

.blog-card .read-more:hover { text-decoration: underline; }

/* ── Blog post body: blockquote ───────────────────────────── */
.sdc-card blockquote {
  border-left: 3px solid var(--clr-outline-variant);
  padding: 0.25rem 0 0.25rem 2rem;
  margin: 1.25rem 0 1.25rem 1.5rem;
  font-style: italic;
  background: none;
}

/* ── Instruction Page ─────────────────────────────────────── */
.instruction-step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--clr-surface-container);
}

.instruction-step:last-child { border-bottom: none; }

.step-number {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--clr-primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
}

/* ── Privacy / ToS Pages ──────────────────────────────────── */
.policy-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

@media (max-width: 767px) {
  .policy-content {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

.policy-content h2 {
  font-size: 1.35rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.policy-content p,
.policy-content li {
  color: var(--clr-on-surface-variant);
  line-height: 1.7;
}

/* ── 404 ──────────────────────────────────────────────────── */
.error-page {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1rem;
}

.error-page .error-code {
  font-size: 6rem;
  font-weight: 800;
  color: var(--clr-primary-container);
  line-height: 1;
  font-family: var(--font-headline);
}

/* ── Material Symbols helper ──────────────────────────────── */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
  line-height: 1;
}

/* ── Utility overrides ────────────────────────────────────── */
a { color: var(--clr-primary); }
a:hover { color: var(--clr-secondary); }

.text-muted { color: var(--clr-on-surface-variant) !important; }

.badge-primary {
  background: var(--clr-primary-container);
  color: var(--clr-primary);
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 0.3rem 0.75rem;
}

/* ── Responsive tweaks ────────────────────────────────────── */
@media (max-width: 575px) {
  .sdc-search-pill { flex-direction: column; border-radius: 1rem; padding: 0.75rem; gap: 0.5rem; }
  .sdc-search-pill input { width: 100%; }
  .sdc-search-pill .btn-sdc-primary { width: 100%; }
  .sdc-hero { padding: 2.5rem 0 2rem; }
}