/* === base.css — Yalla Books design system === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Brand */
  --color-primary:      #ff5c39;
  --color-primary-hover:#e84a2a;
  --color-ink:          #1b1b3a;
  --color-bg:           #fef8f0;

  /* Surfaces */
  --color-surface:      #ffffff;
  --color-surface-alt:  #f5edde;
  --color-border:       #1b1b3a;

  /* Category accents */
  --color-peach:  #ffd9cc;
  --color-mint:   #d4f0d4;
  --color-butter: #ffe8b0;
  --color-sky:    #d4e4ff;
  --color-blush:  #ffc2d1;

  /* Semantic */
  --color-success: #2e7d5b;
  --color-danger:  #b83535;
  --color-warning: #b87a2e;
  --color-muted:   #6b6b84;

  /* Text on brand */
  --color-text-on-primary: #ffffff;
  --color-text-on-ink:     #fef8f0;

  /* Typography */
  --font-display-ar: 'Tajawal', system-ui, sans-serif;
  --font-body-ar:    'Tajawal', system-ui, sans-serif;
  --font-display-en: 'Fraunces', Georgia, serif;
  --font-body-en:    'DM Sans', system-ui, sans-serif;

  /* Radius */
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-pill: 999px;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
}

/* Typography switching */
html[lang="ar"] body { font-family: var(--font-body-ar); font-size: 15px; line-height: 1.65; }
html[lang="en"] body { font-family: var(--font-body-en); font-size: 14px; line-height: 1.55; }

html[lang="ar"] h1,
html[lang="ar"] h2,
html[lang="ar"] h3,
html[lang="ar"] .section-title,
html[lang="ar"] .book-title,
html[lang="ar"] .hero-title,
html[lang="ar"] .editors-title { font-family: var(--font-display-ar); }

html[lang="en"] h1,
html[lang="en"] h2,
html[lang="en"] h3,
html[lang="en"] .section-title,
html[lang="en"] .book-title,
html[lang="en"] .hero-title,
html[lang="en"] .editors-title { font-family: var(--font-display-en); }

body {
  background: var(--color-bg);
  color: var(--color-ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  font-size: 0.875rem;
  border: 1px solid var(--color-ink);
}
.alert--success { background: var(--color-mint);  color: var(--color-success); }
.alert--danger  { background: var(--color-peach);  color: var(--color-danger);  }
.alert--info    { background: var(--color-sky);    color: var(--color-ink);     }

/* Form groups */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
  font-weight: 600;
}
.form-group input[type="email"],
.form-group input[type="text"],
.form-group input[type="password"] {
  width: 100%;
  padding: 10px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-family: inherit;
  color: var(--color-ink);
  outline: none;
  transition: box-shadow 0.15s;
}
.form-group input:focus {
  box-shadow: 0 0 0 2px var(--color-primary);
}

.text-muted { color: var(--color-muted); }