/* === TRA — Talmud Daf Layout System === */

/* Design Tokens */
:root {
  /* Parchment palette */
  --parchment-light: #f8f0e0;
  --parchment: #f0e6d0;
  --parchment-dark: #e8d8c0;
  --parchment-shadow: #d0c0a0;

  /* Text */
  --text-primary: #3a2a1a;
  --text-secondary: #6b5a3e;
  --text-accent: #8b4513;

  /* Accent colors */
  --gold: #daa520;
  --gold-light: #e8c84a;
  --navy: #1a2a6c;
  --water: #2e8b9a;

  /* Border */
  --border-color: #8b7355;
  --border-light: #a89070;

  /* Typography */
  --font-gemara: 'Frank Ruhl Libre', 'Georgia', serif;
  --font-rashi: 'Frank Ruhl Libre', 'Georgia', serif;
  --font-ui: 'Inter', 'Helvetica Neue', sans-serif;

  /* Layout */
  --daf-max-width: 1100px;
  --daf-padding: 2rem;
  --column-gap: 2rem;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-gemara);
  background: var(--parchment);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
}

a {
  color: var(--navy);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--text-accent); text-decoration: underline; }

img { max-width: 100%; height: auto; }

/* === Site Navigation === */
.site-nav {
  background: linear-gradient(to bottom, #2c1810, #3a2a1a);
  border-bottom: 3px solid var(--gold);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: var(--daf-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
}
.nav-logo img {
  width: 40px;
  height: 40px;
  border-radius: 4px;
}
.nav-logo-text {
  font-family: var(--font-gemara);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.05em;
}
.nav-links {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 0;
}
.nav-links a {
  display: block;
  padding: 1rem 1rem;
  color: var(--parchment-light);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: background 0.2s, color 0.2s;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover, .nav-links a.active {
  background: rgba(218,165,32,0.1);
  color: var(--gold);
  border-bottom-color: var(--gold);
  text-decoration: none;
}
.nav-daf-number {
  font-family: var(--font-gemara);
  font-size: 0.7rem;
  color: var(--gold);
  opacity: 0.6;
  display: block;
  text-align: center;
  direction: rtl;
}
.nav-donate {
  background: var(--gold) !important;
  color: #2c1810 !important;
  font-weight: 700 !important;
  border-radius: 4px;
  margin-left: 0.5rem;
  padding: 0.6rem 1.2rem !important;
}
.nav-donate:hover {
  background: var(--gold-light) !important;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--gold);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* === Daf Page Container === */
.daf-page {
  max-width: var(--daf-max-width);
  margin: 2rem auto;
  padding: 0 1rem;
}

/* === Decorative Border Frame === */
.daf-border {
  position: relative;
  border: 8px solid var(--border-color);
  padding: var(--daf-padding);
  background: var(--parchment-light);
  box-shadow:
    inset 0 0 60px rgba(139, 115, 85, 0.08),
    0 4px 20px rgba(0, 0, 0, 0.12);
}

/* Inner double border */
.daf-border::before {
  content: '';
  position: absolute;
  inset: 6px;
  border: 2px solid var(--border-light);
  pointer-events: none;
}

/* Corner ornament gradient */
.daf-border::after {
  content: '';
  position: absolute;
  inset: -8px;
  border: 8px solid transparent;
  border-image: linear-gradient(45deg, var(--gold) 0%, var(--border-color) 30%, var(--border-color) 70%, var(--gold) 100%) 8;
  pointer-events: none;
}

/* === Daf Header === */
.daf-header {
  text-align: center;
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--border-color);
  position: relative;
}
.daf-header::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 25%;
  right: 25%;
  height: 1px;
  background: var(--border-light);
}
.daf-number {
  font-family: var(--font-gemara);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-accent);
  direction: rtl;
  display: block;
  margin-bottom: 0.25rem;
}
.daf-title {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.daf-subtitle {
  font-family: var(--font-gemara);
  font-size: 1rem;
  color: var(--gold);
  direction: rtl;
  display: block;
  margin-top: 0.25rem;
}

/* === 3-Column Daf Body === */
.daf-body {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 50%) 1fr;
  gap: 0 var(--column-gap);
  align-items: start;
}

/* Center column - Gemara */
.daf-gemara {
  grid-column: 2;
  font-family: var(--font-gemara);
  font-size: 1.1rem;
  line-height: 1.85;
  color: var(--text-primary);
  padding: 0 1rem;
  border-left: 1px solid var(--parchment-shadow);
  border-right: 1px solid var(--parchment-shadow);
}
.daf-gemara h2 {
  font-size: 1.6rem;
  color: var(--text-accent);
  margin-bottom: 1rem;
  font-weight: 700;
}
.daf-gemara h3 {
  font-size: 1.2rem;
  color: var(--text-accent);
  margin: 1.5rem 0 0.75rem;
}
.daf-gemara p { margin-bottom: 1rem; }

/* Right column - Rashi (supporting info) */
.daf-rashi {
  grid-column: 3;
  font-family: var(--font-rashi);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
}
.daf-rashi h4 {
  font-size: 0.9rem;
  color: var(--text-accent);
  border-bottom: 1px solid var(--parchment-shadow);
  padding-bottom: 0.3rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.daf-rashi p { margin-bottom: 0.75rem; }

/* Left column - Tosafot (context, stories) */
.daf-tosafot {
  grid-column: 1;
  font-family: var(--font-gemara);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
  font-style: italic;
}
.daf-tosafot h4 {
  font-size: 0.9rem;
  color: var(--text-accent);
  border-bottom: 1px solid var(--parchment-shadow);
  padding-bottom: 0.3rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-style: normal;
}
.daf-tosafot p { margin-bottom: 0.75rem; }
.daf-tosafot blockquote {
  border-left: 3px solid var(--gold);
  padding-left: 0.75rem;
  margin: 0.75rem 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* Full-width sections within daf */
.daf-full {
  grid-column: 1 / -1;
  margin: 2rem 0;
}

/* === Daf Footer Navigation === */
.daf-footer {
  display: flex;
  justify-content: space-between;
  padding-top: 1.5rem;
  margin-top: 2rem;
  border-top: 2px solid var(--border-color);
}
.daf-nav-link {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--parchment-shadow);
  border-radius: 4px;
  transition: background 0.2s;
}
.daf-nav-link:hover {
  background: var(--parchment-dark);
  text-decoration: none;
}

/* === Site Footer === */
.site-footer {
  background: linear-gradient(to bottom, #2c1810, #1a1008);
  color: var(--parchment-dark);
  padding: 3rem 1.5rem 1.5rem;
  margin-top: 2rem;
}
.footer-inner {
  max-width: var(--daf-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
}
.footer-brand h3 { color: var(--gold); font-size: 1.3rem; margin-bottom: 0.5rem; }
.footer-brand p { font-size: 0.85rem; line-height: 1.6; color: var(--parchment-shadow); }
.footer-col h4 { color: var(--gold); font-size: 0.85rem; margin-bottom: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; }
.footer-col a { display: block; color: var(--parchment-shadow); font-size: 0.85rem; padding: 0.25rem 0; font-family: var(--font-ui); }
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  max-width: var(--daf-max-width);
  margin: 2rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(139,115,85,0.3);
  text-align: center;
  font-size: 0.75rem;
  color: var(--parchment-shadow);
}
.footer-bottom a { color: var(--gold); }

/* === Mobile Donate Bar === */
.mobile-donate-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  background: var(--navy);
  padding: 0.75rem 1.5rem;
  text-align: center;
}
.mobile-donate-bar a {
  display: inline-block;
  background: var(--gold);
  color: #2c1810;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.75rem 2rem;
  border-radius: 6px;
  width: 100%;
  max-width: 300px;
}