/* 
   BibleDS Global Design System v2.0
   Responsive: 1 col mobile → 4 col TV FullHD
   Acessível, legível, premium
*/

/* ======================================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ====================================================== */
:root {
    --brand-primary: #38bdf8;       /* sky-400 */
    --brand-accent:  #0ea5e9;       /* sky-500 */
    --brand-dark:    #0f172a;       /* slate-900 */
    --brand-slate:   #1e293b;       /* slate-800 */
    --brand-deeper:  #020617;       /* slate-950 */
    --brand-vt:      #f59e0b;       /* amber-400 - Velho Testamento */
    --brand-nt:      #38bdf8;       /* sky-400   - Novo Testamento */

    /* Legibility */
    --text-base:     1rem;          /* 16px mínimo */
    --text-sm:       0.875rem;      /* 14px mínimo */
    --text-xs:       0.75rem;       /* 12px — evitar abaixo disso */

    /* Spacing */
    --gap-base:      1.5rem;
    --gap-lg:        2rem;
    --pad-page:      1.25rem;

    /* Observable Framework Native Overrides */
    --observablehq-sidebar-background: var(--brand-deeper);
    --observablehq-sidebar-border: var(--brand-slate);
    --observablehq-accent: var(--brand-primary);
}

/* ======================================================
   BASE RESET & TYPOGRAPHY
   ====================================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--brand-dark) !important;
    color: #f8fafc !important;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: var(--text-base);
    margin: 0;
    -webkit-font-smoothing: antialiased;
    width: 100vw !important;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.025em;
}

/* ======================================================
   OBSERVABLE FRAMEWORK — LAYOUT OVERRIDES
   ====================================================== */

/* Remove width cap on ALL content elements */
#observablehq-main p,
#observablehq-main table,
#observablehq-main figure,
#observablehq-main figcaption,
#observablehq-main h1,
#observablehq-main h2,
#observablehq-main h3,
#observablehq-main h4,
#observablehq-main h5,
#observablehq-main h6,
#observablehq-main .katex-display,
#observablehq-main blockquote,
#observablehq-main ul,
#observablehq-main ol,
#observablehq-main .observablehq-row,
#observablehq-main .observablehq--block {
    max-width: none !important;
    width: 100% !important;
}

#observablehq-main {
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    padding: var(--pad-page) !important;
    padding-top: 80px !important; /* Offset for premium header */
    min-height: 100vh;
}

#observablehq-center {
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
    display: block !important;
}

article,
.observablehq {
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
}

/* Hide Sidebar & TOC */
aside,
.observablehq--sidebar,
.observablehq--toc {
    display: none !important;
}

/* ======================================================
   PREMIUM NAVIGATION HEADER
   ====================================================== */
.premium-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(2, 6, 23, 0.92);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(30, 41, 59, 0.9);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--pad-page);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
    width: 100% !important;
    max-width: none !important;
}

.premium-nav .logo {
    font-weight: 900;
    color: #fff;
    letter-spacing: -0.05em;
    font-size: 1.125rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    white-space: nowrap;
}

.premium-nav .links {
    display: flex;
    gap: 0.25rem;
}

.premium-nav .links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.5rem 0.875rem;
    border-radius: 0.75rem;
    transition: all 0.25s ease;
    border: 1px solid transparent;
    white-space: nowrap;
}

.premium-nav .links a:hover {
    color: var(--brand-primary);
    background: rgba(56, 189, 248, 0.08);
}

.premium-nav .links a.active {
    color: #fff;
    background: rgba(56, 189, 248, 0.15);
    border-color: rgba(56, 189, 248, 0.35);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.12);
}

/* ── Hamburguer (Mobile Only) ── */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 0.5rem;
    background: none;
    border: none;
    z-index: 101;
}

.nav-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #94a3b8;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(2, 6, 23, 0.97);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--brand-slate);
    z-index: 99;
    padding: 1rem var(--pad-page);
    flex-direction: column;
    gap: 0.5rem;
}

.nav-mobile-menu.open {
    display: flex;
}

.nav-mobile-menu a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.875rem 1rem;
    border-radius: 0.75rem;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.nav-mobile-menu a:hover,
.nav-mobile-menu a.active {
    color: var(--brand-primary);
    background: rgba(56, 189, 248, 0.08);
    border-color: rgba(56, 189, 248, 0.25);
}

/* ======================================================
   RESPONSIVE GRID SYSTEM
   Mobile: 1 col | TV (>1440px): 4 cols
   ====================================================== */

/* KPI Row — 1 col mobile, 2 tablet, 4 desktop/TV */
.grid-kpi {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-base);
}

/* Book Grid — 1 col mobile, 2 tablet, 3 desktop, 5 TV */
.grid-books {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-base);
}

/* Charts — 1 col mobile, 2 desktop */
.grid-charts {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-base);
}

/* Analytics Row — 1 col mobile, 3 desktop */
.grid-analytics {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-base);
}

/* ======================================================
   BREAKPOINTS
   ====================================================== */

/* Tablet (sm: 640px) */
@media (min-width: 640px) {
    :root {
        --pad-page: 1.5rem;
        --gap-base: 1.5rem;
    }
    
    #observablehq-main {
        padding: var(--pad-page) !important;
        padding-top: 80px !important;
    }
    
    .grid-kpi    { grid-template-columns: repeat(2, 1fr); }
    .grid-books  { grid-template-columns: repeat(2, 1fr); }
    .grid-charts { grid-template-columns: repeat(2, 1fr); }
}

/* Desktop (lg: 1024px) */
@media (min-width: 1024px) {
    :root {
        --pad-page: 2rem;
        --gap-base: 1.5rem;
    }
    
    .premium-nav { padding: 0 2rem; }
    
    .grid-kpi      { grid-template-columns: repeat(4, 1fr); }
    .grid-books    { grid-template-columns: repeat(3, 1fr); }
    .grid-charts   { grid-template-columns: repeat(2, 1fr); }
    .grid-analytics { grid-template-columns: repeat(3, 1fr); }
}

/* Large Desktop (xl: 1280px) */
@media (min-width: 1280px) {
    .grid-books { grid-template-columns: repeat(4, 1fr); }
}

/* TV / FullHD (2xl: 1536px+) */
@media (min-width: 1536px) {
    :root {
        --text-base: 1.125rem;   /* 18px em TV */
        --text-sm:   1rem;       /* 16px em TV */
        --text-xs:   0.875rem;   /* 14px em TV */
        --pad-page:  3rem;
        --gap-base:  2rem;
        --gap-lg:    2.5rem;
    }
    
    #observablehq-main {
        padding: var(--pad-page) !important;
        padding-top: 90px !important;
    }
    
    .premium-nav {
        height: 72px;
        padding: 0 3rem;
    }
    
    .premium-nav .logo { font-size: 1.375rem; }
    .premium-nav .links a { font-size: 0.875rem; padding: 0.625rem 1.25rem; }

    .grid-kpi      { grid-template-columns: repeat(4, 1fr); gap: 2rem; }
    .grid-books    { grid-template-columns: repeat(5, 1fr); gap: 2rem; }
    .grid-charts   { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .grid-analytics { grid-template-columns: repeat(4, 1fr); gap: 2rem; }
    
    .card-kpi  { padding: 2rem; }
    .card-premium { border-radius: 2rem; }
    .btn-nav { font-size: 0.875rem; padding: 1rem 2rem; }
}

/* ── Mobile: Hamburguer ── */
@media (max-width: 639px) {
    .premium-nav .links { display: none !important; }
    .nav-hamburger { display: flex; }
    
    #observablehq-main {
        padding: 1rem !important;
        padding-top: 72px !important;
    }
    
    .prose-bible {
        font-size: 1.125rem !important;
        line-height: 2 !important;
    }
}

/* ======================================================
   UI COMPONENTS
   ====================================================== */

/* Premium Glassmorphism Card */
.card-premium {
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid rgba(51, 65, 85, 0.5);
    border-radius: 1.5rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: border-color 0.35s ease, background 0.35s ease;
    overflow: hidden;
}

.card-premium:hover {
    border-color: rgba(56, 189, 248, 0.4);
    background: rgba(30, 41, 59, 0.55);
}

/* KPI Card */
.card-kpi {
    background: rgba(15, 23, 42, 0.88);
    border: 1px solid rgba(51, 65, 85, 0.7);
    padding: 1.5rem;
    border-radius: 1.25rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.35s ease,
                background 0.35s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.card-kpi:hover {
    transform: translateY(-4px);
    border-color: var(--brand-primary);
    background: rgba(30, 41, 59, 0.85);
}

/* KPI label size — readable everywhere */
.kpi-label {
    font-size: var(--text-xs);
    font-weight: 800;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.375rem;
}

.kpi-value {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 900;
    color: #fff;
    font-style: italic;
    line-height: 1.1;
}

.kpi-sub {
    font-size: var(--text-xs);
    color: #475569;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-top: 0.5rem;
}

/* Section Title */
.section-title {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 700;
    color: #f1f5f9;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.section-title-bar {
    display: inline-block;
    width: 4px;
    height: 1.5rem;
    background: var(--brand-primary);
    border-radius: 4px;
    flex-shrink: 0;
}

/* ── Velho vs Novo Testamento color acents ── */
.vt-accent  { color: var(--brand-vt) !important; }
.nt-accent  { color: var(--brand-nt) !important; }
.vt-border  { border-left-color: var(--brand-vt) !important; }
.nt-border  { border-left-color: var(--brand-nt) !important; }

/* Navigation Buttons */
.btn-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    background-color: var(--brand-deeper);
    border: 1px solid var(--brand-slate);
    border-radius: 1rem;
    color: var(--brand-primary);
    font-weight: 900;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    width: 100%;
}

.btn-nav:hover {
    background-color: var(--brand-primary);
    border-color: var(--brand-primary);
    color: var(--brand-deeper);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
}

@media (min-width: 640px) {
    .btn-nav { width: auto; }
}

/* TTS Button */
.btn-tts {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 999px;
    color: var(--brand-primary);
    font-size: var(--text-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.25s ease;
}

.btn-tts:hover {
    background: rgba(56, 189, 248, 0.2);
    border-color: var(--brand-primary);
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

.btn-tts.speaking {
    background: rgba(16, 185, 129, 0.15);
    border-color: #10b981;
    color: #10b981;
    animation: pulse-tts 1.5s ease-in-out infinite;
}

@keyframes pulse-tts {
    0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    50%       { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
}

/* Reading Progress Bar */
.reading-progress {
    position: fixed;
    top: 64px;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-primary), #818cf8);
    z-index: 99;
    transition: width 0.1s linear;
    border-radius: 0 2px 2px 0;
}

/* ======================================================
   BIBLICAL TEXT TYPOGRAPHY
   ====================================================== */
.prose-bible {
    font-family: 'Merriweather', serif;
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 2;
    color: #cbd5e1;
}

/* Verse highlight */
.verse-active {
    background: rgba(56, 189, 248, 0.12) !important;
    border-left: 3px solid var(--brand-primary);
    border-radius: 0 0.75rem 0.75rem 0;
    padding-left: 1rem !important;
}

/* ======================================================
   FORM INPUTS
   ====================================================== */
input,
select,
.observablehq-input,
.observablehq-input select {
    background: var(--brand-deeper) !important;
    border: 1px solid var(--brand-slate) !important;
    color: #f8fafc !important;
    border-radius: 0.625rem !important;
    padding: 0.625rem 0.875rem !important;
    font-size: var(--text-sm) !important;
    width: 100% !important;
    box-sizing: border-box !important;
    transition: border-color 0.2s ease, box-shadow 0.2s ease !important;
}

input:focus,
select:focus,
.observablehq-input select:focus {
    border-color: var(--brand-primary) !important;
    outline: none !important;
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15) !important;
}

/* Radio Buttons */
.radio-container div[role="radiogroup"] {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 0.625rem !important;
    color: #94a3b8 !important;
    font-weight: 600 !important;
}

.radio-container label {
    display: flex !important;
    align-items: center !important;
    gap: 0.4rem !important;
    cursor: pointer !important;
    padding: 0.25rem 0.6rem !important;
    border-radius: 0.5rem !important;
    transition: all 0.2s ease !important;
    white-space: nowrap !important;
}

form[class*="observablehq--input-radio"],
.radio-container form {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
    align-items: center !important;
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
}

form[class*="observablehq--input-radio"]>div,
.radio-container form>div {
    margin: 0 !important;
    background: rgba(15, 23, 42, 0.5) !important;
    border: 1px solid rgba(51, 65, 85, 0.5) !important;
    padding: 6px 14px !important;
    border-radius: 999px !important;
    cursor: pointer !important;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
}

form[class*="observablehq--input-radio"]>div:hover,
.radio-container form>div:hover {
    background: rgba(56, 189, 248, 0.08) !important;
    border-color: rgba(56, 189, 248, 0.4) !important;
}

form[class*="observablehq--input-radio"] input,
.radio-container form input {
    accent-color: var(--brand-primary) !important;
    margin: 0 !important;
}

form[class*="observablehq--input-radio"] label,
.radio-container form label {
    color: #94a3b8 !important;
    font-weight: 700 !important;
    font-size: var(--text-xs) !important;
    text-transform: uppercase !important;
    letter-spacing: 0.08em !important;
    cursor: pointer !important;
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
}

form[class*="observablehq--input-radio"]>div:has(input:checked),
.radio-container form>div:has(input:checked) {
    background: rgba(56, 189, 248, 0.15) !important;
    border-color: var(--brand-primary) !important;
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.12);
}

form[class*="observablehq--input-radio"]>div:has(input:checked) label,
.radio-container form>div:has(input:checked) label {
    color: #fff !important;
}

/* ======================================================
   PLOT / CHART TOOLTIPS
   ====================================================== */
[class*="plot-tip"],
._plot-tip,
.observablehq--plot-tip,
div[style*="background: white"],
div[style*="background-color: white"] {
    color: #ffffff !important;
    background-color: rgba(15, 23, 42, 0.96) !important;
    backdrop-filter: blur(12px) !important;
    font-weight: 600 !important;
    border-radius: 1rem !important;
    padding: 12px 16px !important;
    border: 1px solid rgba(56, 189, 248, 0.4) !important;
    font-size: var(--text-sm) !important;
}

[class*="plot-tip"] *,
._plot-tip * {
    color: #ffffff !important;
}

/* ======================================================
   CUSTOM SCROLLBAR
   ====================================================== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--brand-deeper); }
::-webkit-scrollbar-thumb {
    background: var(--brand-slate);
    border-radius: 8px;
    border: 2px solid var(--brand-deeper);
}
::-webkit-scrollbar-thumb:hover { background: var(--brand-primary); }

/* ======================================================
   ANIMATIONS
   ====================================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
    0%   { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.animate-reveal {
    animation: fadeIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.animate-slide-up {
    animation: slideUp 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* Staggered entry for grid items */
.animate-reveal:nth-child(1) { animation-delay: 0.05s; }
.animate-reveal:nth-child(2) { animation-delay: 0.10s; }
.animate-reveal:nth-child(3) { animation-delay: 0.15s; }
.animate-reveal:nth-child(4) { animation-delay: 0.20s; }
.animate-slide-up:nth-child(1) { animation-delay: 0.05s; }
.animate-slide-up:nth-child(2) { animation-delay: 0.12s; }
.animate-slide-up:nth-child(3) { animation-delay: 0.19s; }
.animate-slide-up:nth-child(4) { animation-delay: 0.26s; }

/* ======================================================
   PAGE HEADER COMPONENT
   ====================================================== */
.page-header {
    margin-bottom: 2.5rem;
}

.page-header h1 {
    font-size: clamp(1.75rem, 5vw, 3rem);
    font-weight: 900;
    color: #fff;
    letter-spacing: -0.04em;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.page-header .h1-bar {
    width: 6px;
    height: clamp(2rem, 4vw, 3rem);
    background: var(--brand-primary);
    border-radius: 4px;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.5);
    flex-shrink: 0;
}

.page-header .subtitle {
    color: #475569;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-left: calc(6px + 1rem);
}

/* ======================================================
   SIDEBAR (Observable) — kept in case re-enabled
   ====================================================== */
aside,
.observablehq--sidebar {
    background-color: var(--brand-deeper) !important;
    border-right: 1px solid var(--brand-slate) !important;
}

.observablehq--sidebar a {
    color: #94a3b8 !important;
    font-weight: 600 !important;
    border-radius: 0.75rem !important;
    transition: all 0.2s ease !important;
}

.observablehq--sidebar a:hover {
    background-color: rgba(56, 189, 248, 0.06) !important;
    color: var(--brand-primary) !important;
}

.observablehq--sidebar a[aria-current="page"] {
    background-color: rgba(56, 189, 248, 0.1) !important;
    color: #f8fafc !important;
    border: 1px solid rgba(56, 189, 248, 0.2) !important;
}

/* ======================================================
   MISC UTILITY
   ====================================================== */
.custom-scrollbar::-webkit-scrollbar { height: 4px; }
.custom-scrollbar::-webkit-scrollbar-thumb { background: var(--brand-slate); border-radius: 4px; }

.badge-vt {
    display: inline-block;
    padding: 0.2em 0.6em;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #f59e0b;
    border-radius: 999px;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.badge-nt {
    display: inline-block;
    padding: 0.2em 0.6em;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: #38bdf8;
    border-radius: 999px;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}