/* ==========================================================================
   Baiq Front – Responsive Core Styles
   - Mobile-first, CSS Grid & Flexbox
   - Single primary color via CSS variables
   - Breakpoints: mobile ≤767px, tablet 768–1023px, desktop ≥1024px
   ========================================================================== */

/* =========================
   1) Design Tokens (CSS Vars)
   ========================= */
:root {
  /* Primary color (edit only this to rebrand) */
  --color-primary: #EA1E26;
  --color-primary-600: color-mix(in oklab, var(--color-primary) 85%, black);
  --color-primary-700: color-mix(in oklab, var(--color-primary) 70%, black);
  --color-primary-50:  color-mix(in oklab, var(--color-primary) 8%, white);
  --on-primary: #ffffff;

  /* Neutrals */
  --color-bg: #ffffff;
  --color-surface: #f6f7f9;
  --color-border: #e5e7eb;
  --color-text: #0f172a;
  --color-muted: #64748b;

  /* Sizing & layout */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.08);
  --container-w: 1200px;
  --gutter: 1rem;

  /* Typography */
  --font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
  --fs-300: clamp(0.85rem, 2vw, 0.95rem);
  --fs-400: clamp(0.95rem, 2vw, 1rem);
  --fs-500: clamp(1.05rem, 2.5vw, 1.125rem);
  --fs-600: clamp(1.25rem, 3vw, 1.5rem);
  --fs-700: clamp(1.6rem, 4vw, 2rem);
  --fs-800: clamp(2rem, 5vw, 2.5rem);
}

/* =========================
   2) Base & Resets
   ========================= */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg, video, canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Accessible hide (keep for screen readers) */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Container */
.container {
  width: min(100% - 2rem, var(--container-w));
  margin-inline: auto;
}

/* =========================
   3) Utilities
   ========================= */
.text-muted { color: var(--color-muted); }
.surface    { background: var(--color-surface); }
.rounded    { border-radius: var(--radius-md); }
.shadow     { box-shadow: var(--shadow-sm); }

.grid {
  display: grid;
  gap: 1rem;
}
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.flow > * + * { margin-top: 0.75rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--fs-400);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform .06s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 3px solid color-mix(in oklab, var(--color-primary) 35%, transparent); outline-offset: 2px; }

.btn-primary {
  background: var(--color-primary);
  color: var(--on-primary);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--color-primary-600); }
.btn-primary:active { background: var(--color-primary-700); }

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: color-mix(in oklab, var(--color-primary) 55%, transparent);
}
.btn-outline:hover { background: var(--color-primary-50); }

/* Cards */
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.card__media {
  aspect-ratio: 16 / 9;
  background: linear-gradient(145deg, var(--color-primary-50), #fff);
  position: relative;
  overflow: hidden;
}
.card__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card__body { padding: 1rem; display: flex; flex-direction: column; gap: 0.5rem; }
.card__body .btn:last-child { margin-top: auto; align-self: flex-start; }
.card__title { font-size: var(--fs-500); margin: 0; }
.card__meta  { font-size: var(--fs-300); color: var(--color-muted); }

/* =========================
   4) Header & Navigation
   ========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: var(--fs-500);
  color: var(--color-text);
  text-decoration: none;
}
.brand__logo {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: inset 0 0 0 5px color-mix(in oklab, var(--color-primary) 50%, white);
}

.nav-toggle {
  appearance: none;
  border: 1px solid var(--color-border);
  background: #fff;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
}
.nav-toggle svg { stroke: var(--color-text); }

.nav-menu {
  position: absolute;
  inset-inline: 1rem;
  top: calc(100% + 0.5rem);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 0.5rem;
  display: none;
}
.nav-menu.open { display: block; }
.nav-list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid; gap: 0.25rem;
}
.nav-list a {
  display: block;
  padding: 0.75rem 0.75rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
}
.nav-list a:hover { background: var(--color-surface); }
.nav-cta { margin-top: 0.25rem; display: grid; gap: 0.5rem; }

/* Tablet & desktop navigation */
@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .nav-menu {
    all: unset;
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  .nav-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  .nav-cta { margin: 0 0 0 0.5rem; display: flex; align-items: center; gap: 0.5rem; }
}

/* =========================
   5) Sections
   ========================= */
.hero {
  padding: clamp(2rem, 6vw, 5rem) 0;
  background:
    radial-gradient(50% 40% at 20% 0%, var(--color-primary-50), transparent),
    linear-gradient(180deg, #fff, var(--color-surface));
  border-bottom: 1px solid var(--color-border);
}
.hero__eyebrow {
  font-size: var(--fs-300);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero__title {
  font-size: var(--fs-800);
  margin: 0.25rem 0 0.5rem 0;
}
.hero__desc {
  font-size: var(--fs-500);
  color: var(--color-muted);
  max-width: 62ch;
}
.hero__actions { margin-top: 1rem; display: flex; gap: 0.5rem; flex-wrap: wrap; }

.section {
  padding: clamp(1.5rem, 5vw, 3rem) 0;
}
.section__header {
  margin-bottom: 1rem;
  display: grid; gap: 0.25rem;
}
.section__title { font-size: var(--fs-700); margin: 0; }
.section__desc  { color: var(--color-muted); }

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 768px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}

/* Donation detail layout */
.donation {
  display: grid;
  gap: 1rem;
}
@media (min-width: 1024px) {
  .donation { grid-template-columns: 2fr 1fr; align-items: start; }
}
.stat {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.5rem 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
}
.stat__value { font-weight: 800; }
.stat__label { font-size: var(--fs-300); color: var(--color-muted); }

/* Forms (minimal) */
.field {
  display: grid; gap: 0.35rem;
}
.input, .select {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem;
  font: inherit;
}
.input:focus-visible, .select:focus-visible {
  outline: 3px solid color-mix(in oklab, var(--color-primary) 35%, transparent);
  outline-offset: 2px;
}

/* =========================
   6) Footer
   ========================= */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: #fff;
}
.footer-grid {
  display: grid;
  gap: 1rem;
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}
.footer-note {
  padding: 0.75rem 0;
  color: var(--color-muted);
  font-size: var(--fs-300);
  border-top: 1px solid var(--color-border);
  margin-top: 0.75rem;
}
.social {
  display: flex; gap: 0.5rem; align-items: center;
}
.social a {
  inline-size: 40px; block-size: 40px;
  display: inline-grid; place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text);
  text-decoration: none;
}
.social a:hover { background: var(--color-surface); }

/* =========================
   7) Accessibility & Prefs
   ========================= */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}