/* Base Typography & Layout — Linear-style palette */
:root {
    color-scheme: light;
    --canvas: #fafbfc;
    --surface: #ffffff;
    --border-subtle: #e6e8eb;
    --border-strong: #d1d5db;
    --ink-muted: #6b7280;
    --brand: #5e6ad2;
    --brand-strong: #4f59b8;
}

html {
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
}

body {
    font-family: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
        'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-feature-settings: "cv11", "ss01", "ss03";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.005em;
}

/* Headings get tighter tracking for a modern feel */
h1, h2, h3, h4, h5, h6 {
    letter-spacing: -0.02em;
}

/* Hebrew (right-to-left) text uses a traditional Hebrew serif — Inter has no
   Hebrew glyphs, so without this it falls back to a plain system font. */
[dir="rtl"] {
    font-family: "Frank Ruhl Libre", "David Libre", "Noto Serif Hebrew", "Times New Roman", serif;
    letter-spacing: normal;
}

/* Tanya — tzuras hadaf: justified body like the printed page, with the
   daily-study calendar markers (regular year / leap year) set as small
   in-text notations as they appear in the Kehot Tanya. */
.tanya-text {
    text-align: justify;
    text-align-last: right;
}
.tanya-mark {
    font-size: 0.58em;
    font-weight: 600;
    vertical-align: 0.45em;
    margin: 0 0.15em;
    padding: 0.05em 0.4em;
    border-radius: 0.3rem;
    white-space: nowrap;
    line-height: 1;
    position: relative;
    cursor: help;
}
/* Rashi commentary beneath a Chumash verse. */
.rashi-comment b { color: #1f2937; font-weight: 700; }   /* dibur hamatchil */
.rashi-hidden .rashi-block { display: none; }

.tanya-mark--reg  { color: #92400e; background: #fef3c7; }   /* regular year */
.tanya-mark--leap { color: #5b21b6; background: #ede9fe; }   /* leap year */
.marks-hidden .tanya-mark { display: none; }

/* Hover tooltip naming the year type (regular vs leap). */
.tanya-mark::after {
    position: absolute;
    bottom: 135%;
    right: 50%;
    transform: translateX(50%);
    background: #1f2937;
    color: #fff;
    font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
    font-size: 11px;
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: 0;
    padding: 3px 8px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.12s ease;
    z-index: 30;
}
.tanya-mark--reg::after  { content: "Regular year · שנה פשוטה"; }
.tanya-mark--leap::after { content: "Leap year · שנה מעוברת"; }
.tanya-mark:hover::after { opacity: 1; }

/* Selection color uses the brand */
::selection {
    background-color: rgba(94, 106, 210, 0.18);
    color: #383f7e;
}

/* Smooth, scoped transitions — only on commonly-animated properties */
a, button, [role="button"], input, select, textarea, summary {
    transition-property: color, background-color, border-color, box-shadow,
        transform, opacity;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 160ms;
}

/* Fade-in Animation */
@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fade-in 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Blob Animation for Hero Section */
@keyframes blob {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.animate-blob {
    animation: blob 9s ease-in-out infinite;
}

.animation-delay-2000 {
    animation-delay: 2s;
}

.animation-delay-4000 {
    animation-delay: 4s;
}

/* Subtle "shine" used on primary CTAs */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Rich Text Editor Styling (Action Text) */
.trix-content {
    line-height: 1.65;
}

.trix-content h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.trix-content p {
    margin-bottom: 0.75rem;
}

.trix-content ul,
.trix-content ol {
    margin-left: 1.5rem;
    margin-bottom: 0.75rem;
}

.trix-content a {
    color: var(--brand);
    text-decoration: underline;
    text-decoration-color: rgba(94, 106, 210, 0.35);
    text-underline-offset: 2px;
}

.trix-content a:hover {
    text-decoration-color: currentColor;
}

/* Line Clamp Utilities */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Focus Visible for Better Accessibility */
*:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
    border-radius: 0.375rem;
}

button:focus-visible,
a:focus-visible {
    outline-offset: 3px;
}

/* Custom Scrollbar (WebKit browsers) */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 5px;
    border: 2px solid var(--canvas);
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Light-mode logo inversion (for dark-background logos on light sites) */
.logo-light-mode {
    filter: invert(1);
}

/* App-wide surface card: reusable shell for repeating content blocks */
.app-card {
    background-color: var(--surface);
    border: 1px solid var(--border-subtle);
    border-radius: 0.5rem;
}

/* Linear-style header — no blur, just a clean 1px border. */
.glass-nav {
    background-color: var(--surface);
    border-bottom: 1px solid var(--border-subtle);
}

/* Subtle top-of-page gradient accent, used on some marketing layouts */
.page-glow {
    background-image:
        radial-gradient(1200px 320px at 15% -10%, rgba(94, 106, 210, 0.10), transparent 60%),
        radial-gradient(900px 260px at 90% -20%, rgba(143, 102, 217, 0.07), transparent 60%);
}

/* Print Styles */
@media print {
    nav, aside, footer, .no-print {
        display: none !important;
    }
    .lg\:pl-56, .lg\:pl-64 {
        padding-left: 0 !important;
    }
    body {
        background: #fff !important;
    }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}