/* ============================================================
   TREASURE THINGS OF NEW OLD — DESIGN SYSTEM
   A calm, reading-focused Christian resource library.

   Visual concept: aged parchment meets living forest —
   "new" (fresh growth, clarity) and "old" (treasured,
   time-tested scripture). Deep forest green anchors trust;
   warm treasury gold marks what is precious. A single
   signature motif — a wax-seal "treasure mark" — appears at
   moments of emphasis (hero, section dividers, empty states)
   rather than being scattered as decoration.
   ============================================================ */

/* -------------------- Design Tokens -------------------- */
:root {
  /* Color: named, then applied semantically */
  --color-forest-900: #14261f;   /* deepest text / dark surfaces */
  --color-forest-700: #1e4d3f;   /* primary brand green */
  --color-forest-600: #2a6350;
  --color-forest-100: #e7efe9;   /* tinted surfaces */
  --color-parchment-50: #faf8f3; /* page background */
  --color-parchment-100: #f2eee2;
  --color-gold-600: #b8892f;     /* treasury gold accent (buttons secondary/links) */
  --color-gold-500: #c9a227;     /* brighter gold for the signature seal */
  --color-clay-600: #a8462f;     /* warm terracotta-red for primary CTAs (download etc) */
  --color-clay-700: #8f3a26;

  --color-primary: var(--color-forest-700);
  --color-primary-dark: var(--color-forest-900);
  --color-secondary: var(--color-gold-600);
  --color-accent: var(--color-clay-600);
  --color-background: var(--color-parchment-50);
  --color-surface: #ffffff;
  --color-border: #ded6c3;
  --color-muted: #6b6355;
  --color-text: #26241e;
  --color-success: #2f7a52;
  --color-warning: #b8892f;
  --color-danger: #a8462f;

  /* Typography */
  --font-heading: 'Merriweather', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.375rem;
  --fs-2xl: 1.75rem;
  --fs-3xl: 2.25rem;
  --fs-4xl: 3rem;

  /* Spacing scale (multiples of 4px) */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 3rem;
  --sp-8: 4rem;
  --sp-9: 6rem;

  /* Radius & shadow */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(20, 38, 31, 0.06);
  --shadow-md: 0 6px 20px rgba(20, 38, 31, 0.08);
  --shadow-lg: 0 16px 40px rgba(20, 38, 31, 0.12);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 220ms ease;
}

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

html { scroll-behavior: smooth; }

/* Prevent images from ever overflowing their container — the single
   biggest cause of accidental horizontal scroll on content pages. */
img, svg { max-width: 100%; height: auto; }

html, body {
  overflow-x: hidden;
  max-width: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.65;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

a { color: var(--color-forest-700); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-clay-600); }

::selection { background: var(--color-gold-500); color: #fff; }

/* Visible focus states everywhere (accessibility) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.btn:focus-visible,
.nav-link:focus-visible {
  outline: 3px solid var(--color-gold-500);
  outline-offset: 2px;
}

.section { padding: var(--sp-8) 0; }
.section-tight { padding: var(--sp-6) 0; }
.surface { background: var(--color-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.text-muted-custom { color: var(--color-muted) !important; }
.text-accent { color: var(--color-clay-600) !important; }
.text-gold { color: var(--color-gold-600) !important; }
.bg-brand { background-color: var(--color-primary) !important; }
.bg-parchment { background-color: var(--color-parchment-100) !important; }

.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold-600);
}

/* -------------------- Signature: Treasure Seal -------------------- */
.treasure-seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, var(--color-gold-500), var(--color-gold-600) 70%);
  color: var(--color-forest-900);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}
.treasure-seal i { font-size: 1.1rem; }

/* Uploaded site logo, shown in place of the treasure-seal icon in the
   navbar/admin sidebar brand mark once one exists (see Setting::logoUrl()).
   Height-constrained rather than cropped into the seal's circle, since a
   real logo's proportions and shape aren't known in advance. */
.navbar-brand-logo {
  max-height: 40px;
  width: auto;
  flex-shrink: 0;
  object-fit: contain;
}

.divider-seal {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin: var(--sp-6) 0;
  color: var(--color-gold-600);
}
.divider-seal::before,
.divider-seal::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* -------------------- Navbar -------------------- */
.site-navbar {
  background: var(--color-forest-900);
  padding: var(--sp-3) 0;
}
.site-navbar .navbar-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  font-size: var(--fs-lg);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.site-navbar .navbar-brand small {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--fs-xs);
  color: #cfd8d1;
  letter-spacing: 0.02em;
}
.site-navbar .nav-link {
  color: #e7efe9;
  font-weight: 500;
  padding: var(--sp-2) var(--sp-4) !important;
  border-radius: var(--radius-sm);
}
.site-navbar .nav-link.active,
.site-navbar .nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.site-navbar .btn-nav-cta {
  background: var(--color-gold-600);
  color: #1c1a12;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: var(--sp-2) var(--sp-5);
}
.site-navbar .btn-nav-cta:hover { background: var(--color-gold-500); }
.site-navbar .navbar-toggler {
  border-color: rgba(255, 255, 255, 0.35);
  padding: 0.35rem 0.6rem;
}
.site-navbar .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.35); }
.site-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* -------------------- Buttons -------------------- */
.btn { border-radius: var(--radius-sm); font-weight: 600; padding: 0.6rem 1.4rem; transition: all var(--transition-fast); }
.btn-primary-brand {
  background: var(--color-clay-600);
  border-color: var(--color-clay-600);
  color: #fff;
}
.btn-primary-brand:hover { background: var(--color-clay-700); border-color: var(--color-clay-700); color: #fff; }
.btn-outline-brand {
  background: transparent;
  border: 1.5px solid var(--color-forest-700);
  color: var(--color-forest-700);
}
.btn-outline-brand:hover { background: var(--color-forest-700); color: #fff; }
.btn-gold {
  background: var(--color-gold-600);
  border-color: var(--color-gold-600);
  color: #1c1a12;
}
.btn-gold:hover { background: var(--color-gold-500); color: #1c1a12; }
.btn:disabled, .btn.is-loading { opacity: 0.7; cursor: not-allowed; }

/* -------------------- Hero -------------------- */
.hero {
  position: relative;
  background: linear-gradient(180deg, rgba(20,38,31,0.72), rgba(20,38,31,0.55)),
              url('../images/hero-shoreline.jpg') center/cover no-repeat;
  color: #fff;
  padding: var(--sp-9) 0;
  text-align: center;
}
.hero h1 { color: #fff; font-size: var(--fs-4xl); max-width: 900px; margin: 0 auto var(--sp-4); }
.hero .scripture-ref {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  padding: var(--sp-1) var(--sp-4);
  border-radius: 999px;
  font-size: var(--fs-sm);
  margin: var(--sp-1) var(--sp-2);
  color: #f2eee2;
}

/* -------------------- Cards -------------------- */
.card-resource {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  height: 100%;
}
.card-resource:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-cover {
  aspect-ratio: 3 / 4;
  background: var(--color-parchment-100);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.card-cover img { width: 100%; height: 100%; object-fit: cover; }
.card-thumb {
  aspect-ratio: 16 / 9;
  background: var(--color-forest-900);
  position: relative;
  overflow: hidden;
}
.card-thumb img { width: 100%; height: 100%; object-fit: cover; opacity: 0.85; }
.card-resource .play-badge {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.card-resource .play-badge span {
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(255,255,255,0.92);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-clay-600); font-size: 1.25rem;
}
.card-resource .card-body-custom { padding: var(--sp-5); }
.card-resource .category-badge {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-forest-700);
  background: var(--color-forest-100);
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  margin-bottom: var(--sp-2);
}

/* -------------------- Blog Post Body -------------------- */
.post-body {
  font-size: var(--fs-lg);
  line-height: 1.85;
  color: var(--color-text);
  max-width: 68ch;
}

/* -------------------- Forms -------------------- */
.form-label { font-weight: 600; color: var(--color-forest-900); font-size: var(--fs-sm); }
.form-control, .form-select {
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  padding: 0.65rem 0.9rem;
  background: var(--color-surface);
}
.form-control:focus, .form-select:focus {
  border-color: var(--color-forest-600);
  box-shadow: 0 0 0 3px rgba(30, 77, 63, 0.15);
}
.form-text { color: var(--color-muted); }
.invalid-feedback { font-size: var(--fs-xs); }

/* -------------------- Alerts / Toasts -------------------- */
.alert { border-radius: var(--radius-md); border: none; }
.alert-brand-success { background: #e4f2ea; color: var(--color-success); }
.alert-brand-danger { background: #fbeae6; color: var(--color-danger); }

#toast-region { position: fixed; bottom: var(--sp-5); right: var(--sp-5); z-index: 1080; }

/* -------------------- Footer -------------------- */
.site-footer {
  background: linear-gradient(180deg, rgba(20,38,31,0.86), rgba(20,38,31,0.94)),
              url('../images/footer-mountains.jpg') center/cover no-repeat;
  color: #dfe7e2;
  padding: var(--sp-7) 0 var(--sp-5);
}
.site-footer .scripture-line {
  text-align: center;
  color: #cfe0d5;
  font-style: italic;
  font-family: var(--font-heading);
  max-width: 800px;
  margin: 0 auto var(--sp-2);
  font-size: var(--fs-sm);
}
.site-footer hr { border-color: rgba(255,255,255,0.15); }
.site-footer a { color: #dfe7e2; }
.site-footer a:hover { color: var(--color-gold-500); }

/* -------------------- Empty / 404 states -------------------- */
.empty-state { text-align: center; padding: var(--sp-8) var(--sp-4); }
.empty-state .treasure-seal { width: 64px; height: 64px; margin-bottom: var(--sp-4); }
.empty-state .treasure-seal i { font-size: 1.6rem; }

/* -------------------- Breadcrumb -------------------- */
.breadcrumb { background: transparent; padding: 0; margin-bottom: var(--sp-5); font-size: var(--fs-sm); }
.breadcrumb-item + .breadcrumb-item::before { color: var(--color-muted); }

/* -------------------- Loaders -------------------- */
.spinner-brand {
  width: 1rem; height: 1rem;
  border: 2px solid rgba(255,255,255,0.5);
  border-top-color: #fff;
  border-radius: 50%;
  display: inline-block;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* -------------------- Auth cards -------------------- */
.auth-wrapper { min-height: 70vh; display: flex; align-items: center; }
.auth-card { max-width: 420px; margin: 0 auto; padding: var(--sp-7) var(--sp-6); }
.auth-card .treasure-seal { margin: 0 auto var(--sp-4); }

/* -------------------- Utility -------------------- */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--color-forest-900); color: #fff;
  padding: var(--sp-2) var(--sp-4); z-index: 2000; border-radius: var(--radius-sm);
}
.skip-link:focus { left: var(--sp-4); top: var(--sp-4); }

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}