/* ============================================
   Kanda Shashti Kavacham - Divine Shield of Murugan
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    --color-bg: #fdf8f0;
    --color-bg-alt: #f0ebe3;
    --color-text: #1a1510;
    --color-text-muted: #6b5744;
    --color-crimson: #b71c1c;
    --color-crimson-light: #ef9a9a;
    --color-crimson-pale: #fce4ec;
    --color-gold: #bf8c00;
    --color-gold-light: #daa520;
    --color-saffron: #e65100;
    --color-peacock: #00695c;
    --color-peacock-light: #26a69a;
    --color-border: #d4c4b0;
    --color-border-light: #e8ddd0;
    --color-white: #ffffff;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Serif 4', 'Georgia', serif;
    --font-tamil: 'Noto Sans Tamil', sans-serif;

    --radius: 8px;
    --shadow-sm: 0 1px 3px rgba(44, 24, 16, 0.08);
    --shadow-md: 0 4px 12px rgba(44, 24, 16, 0.1);
    --shadow-lg: 0 8px 24px rgba(44, 24, 16, 0.12);
}

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

html {
    scroll-behavior: smooth;
    font-size: 18px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* --- Top Bar --- */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1.5rem;
    background: #1a1210;
    color: #a09080;
    font-family: var(--font-body);
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar a {
    color: #c4a882;
    text-decoration: none;
    transition: color 0.2s ease;
}

.top-bar a:hover {
    color: var(--color-gold-light);
}

.top-bar .back-link {
    font-weight: 500;
}

/* --- Reading Progress Bar --- */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-crimson), var(--color-saffron), var(--color-gold));
    z-index: 1000;
    transition: width 0.1s ease;
    width: 0%;
}

/* --- Header --- */
.site-header {
    background: linear-gradient(135deg, #1a0f0a 0%, #3e1a14 40%, #1a0f0a 100%);
    color: var(--color-white);
    text-align: center;
    padding: 2rem 1.5rem 2rem;
    position: relative;
    overflow: hidden;
}

.site-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(230, 81, 0, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.header-content {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.cover-image {
    width: 180px;
    height: auto;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(218, 165, 32, 0.3);
}

.header-ornament {
    font-size: 1.5rem;
    color: var(--color-gold-light);
    margin-bottom: 0.75rem;
    opacity: 0.8;
}

.site-title {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-bottom: 0.4rem;
    background: linear-gradient(135deg, #fff 0%, #daa520 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.site-title-tamil {
    font-family: var(--font-tamil);
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.site-subtitle {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 300;
    opacity: 0.85;
    margin-bottom: 0.25rem;
}

.site-source {
    font-size: 0.78rem;
    opacity: 0.6;
    font-style: italic;
    margin-bottom: 1rem;
}

.header-sections {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.header-tag {
    font-size: 0.7rem;
    padding: 0.25rem 0.75rem;
    background: rgba(218, 165, 32, 0.15);
    border: 1px solid rgba(218, 165, 32, 0.3);
    border-radius: 20px;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 0.02em;
}

/* --- Navigation --- */
.view-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-sm);
}

.nav-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    gap: 0;
    padding: 0 1rem;
}

.nav-btn {
    flex: 1;
    padding: 0.75rem 0.5rem;
    border: none;
    background: transparent;
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    color: var(--color-crimson);
    background: var(--color-crimson-pale);
}

.nav-btn.active {
    color: var(--color-crimson);
    border-bottom-color: var(--color-crimson);
    font-weight: 600;
}

/* --- Content --- */
.content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1rem;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

/* --- Section Blocks --- */
.section-block {
    margin: 2rem 0;
}

.section-heading {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-crimson);
    text-align: center;
    margin-bottom: 0.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--color-border-light);
    position: relative;
}

.section-heading::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--color-crimson);
}

.section-heading-tamil {
    display: block;
    font-family: var(--font-tamil);
    font-size: 1rem;
    color: var(--color-text-muted);
    font-weight: 400;
    margin-top: 0.25rem;
}

.section-intro {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: 1.5rem;
}

/* --- Expand/Collapse Controls --- */
.expand-controls {
    text-align: center;
    margin-bottom: 1rem;
}

.expand-btn {
    padding: 0.4rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    cursor: pointer;
    margin: 0 0.25rem;
    transition: all 0.15s ease;
}

.expand-btn:hover {
    border-color: var(--color-crimson);
    color: var(--color-crimson);
}

/* --- Section Card --- */
.section-card {
    background: var(--color-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.section-card:hover {
    box-shadow: var(--shadow-md);
}

.section-card.kaappu {
    border-left: 4px solid var(--color-gold);
}

.section-card.kural-venba {
    border-left: 4px solid var(--color-peacock);
}

.section-card.nool {
    border-left: 4px solid var(--color-crimson);
}

.section-card.benefits {
    border-left: 4px solid var(--color-saffron);
}

/* --- Section Header --- */
.section-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    border-bottom: 1px solid var(--color-border-light);
}

.kaappu .section-card-header {
    background: linear-gradient(135deg, #fdf5e6 0%, var(--color-bg-alt) 100%);
}

.kural-venba .section-card-header {
    background: linear-gradient(135deg, #e0f2f1 0%, var(--color-bg-alt) 100%);
}

.nool .section-card-header {
    background: linear-gradient(135deg, var(--color-crimson-pale) 0%, var(--color-bg-alt) 100%);
}

.benefits .section-card-header {
    background: linear-gradient(135deg, #fff3e0 0%, var(--color-bg-alt) 100%);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    flex-shrink: 0;
}

.kaappu .section-tag {
    background: rgba(184, 134, 11, 0.15);
    color: var(--color-gold);
    border: 1px solid rgba(184, 134, 11, 0.3);
}

.kural-venba .section-tag {
    background: rgba(0, 105, 92, 0.1);
    color: var(--color-peacock);
    border: 1px solid rgba(0, 105, 92, 0.3);
}

.nool .section-tag {
    background: rgba(183, 28, 28, 0.1);
    color: var(--color-crimson);
    border: 1px solid rgba(183, 28, 28, 0.3);
}

.benefits .section-tag {
    background: rgba(230, 81, 0, 0.1);
    color: var(--color-saffron);
    border: 1px solid rgba(230, 81, 0, 0.3);
}

.section-title-text {
    flex: 1;
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
}

.section-title-tamil {
    font-family: var(--font-tamil);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--color-text-muted);
    margin-left: 0.5rem;
}

.section-toggle {
    color: var(--color-text-muted);
    font-size: 1.2rem;
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.section-card.expanded .section-toggle {
    transform: rotate(180deg);
}

/* --- Section Body --- */
.section-card-body {
    padding: 1.25rem;
}

.section-card:not(.expanded) .section-card-body {
    display: none;
}

/* --- Line Block --- */
.line-block {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: var(--radius);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border-light);
    transition: background 0.15s ease;
}

.line-block:hover {
    background: #efe8dc;
}

.line-block:last-child {
    margin-bottom: 0;
}

.line-tamil {
    font-family: var(--font-tamil);
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--color-text);
}

.line-english {
    font-size: 0.88rem;
    line-height: 1.6;
    font-style: italic;
    color: var(--color-text-muted);
    margin-top: 0.2rem;
}

/* --- Language Toggle --- */
.lang-toggle {
    display: flex;
    gap: 0;
    margin-bottom: 1.25rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.lang-btn {
    flex: 1;
    padding: 0.5rem 1rem;
    border: none;
    background: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.82rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.15s ease;
}

.lang-btn:not(:last-child) {
    border-right: 1px solid var(--color-border);
}

.lang-btn.active {
    background: var(--color-crimson);
    color: var(--color-white);
    font-weight: 600;
}

.lang-btn:hover:not(.active) {
    background: var(--color-crimson-pale);
    color: var(--color-crimson);
}

/* --- Hide language-specific text --- */
body.lang-tamil .line-english {
    display: none;
}

body.lang-english .line-tamil {
    display: none;
}

/* --- Search --- */
.search-box {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-box input {
    width: 100%;
    padding: 0.9rem 1.25rem;
    padding-right: 5rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-white);
    outline: none;
    transition: border-color 0.2s ease;
}

.search-box input:focus {
    border-color: var(--color-crimson);
}

.search-box input::placeholder {
    color: var(--color-border);
}

.search-count {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* --- Search Highlight --- */
.highlight,
mark {
    background: rgba(183, 28, 28, 0.2);
    color: var(--color-text);
    padding: 0.1em 0.2em;
    border-radius: 3px;
    font-weight: 600;
}

/* --- Floating Scroll Buttons --- */
.scroll-buttons {
    position: fixed;
    bottom: 2rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.scroll-buttons.visible {
    opacity: 1;
    pointer-events: auto;
}

.scroll-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    color: var(--color-crimson);
    font-size: 1rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-btn:hover {
    background: var(--color-crimson);
    color: var(--color-white);
    border-color: var(--color-crimson);
    box-shadow: var(--shadow-lg);
    transform: scale(1.1);
}

/* --- Footer --- */
.site-footer {
    text-align: center;
    padding: 2rem 1.5rem;
    background: linear-gradient(135deg, #1a0f0a 0%, #3e1a14 50%, #1a0f0a 100%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
    margin-top: 3rem;
}

.footer-ornament {
    font-size: 1.2rem;
    color: var(--color-gold-light);
    margin-bottom: 0.75rem;
    opacity: 0.7;
}

.footer-note {
    font-size: 0.75rem;
    opacity: 0.5;
    margin-top: 0.25rem;
}

.footer-note a {
    color: var(--color-gold-light);
    text-decoration: none;
}

.footer-note a:hover {
    text-decoration: underline;
}

/* --- Responsive --- */
@media (max-width: 600px) {
    html {
        font-size: 16px;
    }

    .site-title {
        font-size: 1.6rem;
    }

    .site-subtitle {
        font-size: 0.9rem;
    }

    .cover-image {
        width: 140px;
    }

    .nav-btn {
        font-size: 0.75rem;
        padding: 0.7rem 0.3rem;
    }

    .section-card-body {
        padding: 0.75rem;
    }

    .line-block {
        padding: 0.5rem 0.75rem;
    }

    .line-tamil {
        font-size: 1rem;
    }

    .header-sections {
        flex-direction: column;
        gap: 0.4rem;
    }
}

/* --- Print Styles --- */
@media print {
    .progress-bar,
    .view-nav,
    .expand-controls,
    .section-toggle,
    .search-box,
    .top-bar,
    .lang-toggle {
        display: none !important;
    }

    .section-card:not(.expanded) .section-card-body {
        display: block !important;
    }

    .section-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }

    body {
        font-size: 12pt;
    }
}