/**
 * Nour Al-Bayan Interactive Platform - Quranic & Arabic Typography
 * Font family styling, Tajweed diacritic color tokens, WCAG AA contrast, and Arabic letter-spacing constraints.
 */

/* Enforce strict prohibition of letter-spacing on Arabic & RTL text */
:lang(ar),
[dir="rtl"] {
    letter-spacing: normal !important;
}

.quran-font,
.quran-special-font {
    font-family: var(--font-quran, 'Amiri', 'Amiri Quran', 'Scheherazade New', 'Traditional Arabic', serif);
    font-weight: 700;
    font-feature-settings: "calt" 1, "liga" 1, "mkmk" 1, "mark" 1, "ccmp" 1;
    text-rendering: optimizeLegibility;
    font-variant-ligatures: contextual common-ligatures;
    font-synthesis: none;
    line-height: 2.1;
    letter-spacing: normal !important;
    direction: rtl;
    unicode-bidi: isolate;
}

/* Word Diacritic Colors (Linked to Central Tokens) */
.c-red, .c0, .color-0 { color: var(--color-quranic-red, #b91c1c); }
.c-blue, .c1, .color-1 { color: var(--color-quranic-blue, #1d4ed8); }
.c-black, .c2, .color-2 { color: var(--text-main, #1e293b); }
.c-purple { color: #7e22ce; }

/* Separator bar with WCAG 2.1 AA compliant contrast (4.63:1 against white) */
.sep-bar {
    color: #64748b;
    margin-inline: 4px;
    font-weight: 400;
}

/* Custom Scrollbar */
.custom-scrollbar::-webkit-scrollbar { width: 6px; height: 6px; }
.custom-scrollbar::-webkit-scrollbar-track { background: #f1f5f9; border-radius: 10px; }
.custom-scrollbar::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
.custom-scrollbar::-webkit-scrollbar-thumb:hover { background: #94a3b8; }