/**
 * Harpa Cristã - Styles
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 */

/* ========================================
   CSS Custom Properties (Theme Variables)
   ======================================== */
:root {
    /* Luxury Minimal Palette */
    --primary-color: #050505;
    --secondary-color: #0A0A0A;
    --accent-color: #C5A059;
    --surface-color: #171717;
    --text-color: #FFFFFF;
    
    /* Derived Colors */
    --primary-hover: #121212;
    --primary-light: rgba(197, 160, 89, 0.1);
    --accent-hover: #D4AF37;
    --surface-hover: #262626;
    
    /* Background Colors */
    --bg-color: #030303;
    --bg-secondary: #0A0A0A;
    --bg-tertiary: #141414;
    
    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.75);
    --text-muted: rgba(255, 255, 255, 0.4);
    
    /* Border Colors */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.03);
    
    /* Shadows */
    --shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.7);
    --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.8);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 80px;
    
    /* Border Radius */
    --radius-sm: 2px;
    --radius-md: 6px;
    --radius-lg: 12px;
    --radius-xl: 0px; /* Brutalist/Minimal sharp edges on major containers */
    --radius-full: 9999px;
    
    /* Typography */
    --font-family: 'Outfit', sans-serif;
    --font-display: 'Playfair Display', serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 20px;
    --font-size-xl: 32px;
    --font-size-2xl: 44px;
    --font-size-3xl: 64px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 500;
    --z-modal-backdrop: 900;
    --z-modal: 1000;
    --z-toast: 1100;
    --z-projector: 2000;
    
    /* Layout */
    --header-height: 60px;
    --bottom-nav-height: 56px;
    --container-max-width: 1200px;
    
    /* Hymn Display */
    --hymn-font-size: 48px;
    --hymn-line-height: 1.4;
}

/* Light Theme Override */
[data-theme="light"] {
    --bg-color: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e8e8e8;
    --text-primary: #1a1a2e;
    --text-secondary: rgba(26, 26, 46, 0.7);
    --text-muted: rgba(26, 26, 46, 0.5);
    --border-color: rgba(26, 26, 46, 0.1);
    --border-light: rgba(26, 26, 46, 0.05);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-color);
    min-height: 100vh;
    padding-top: var(--header-height);
    /* 55px added for the fixed black-bar ad space */
    padding-bottom: calc(var(--bottom-nav-height) + 55px + env(safe-area-inset-bottom, 0px));
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body::after {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}
/* Safe Areas for iPhone X+ */
@supports (padding: max(0px)) {
    body {
        padding-top: max(var(--header-height), env(safe-area-inset-top));
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
}

h1, h2, h3, h4, .hymn-card-number, .header-logo h1, .verse-number, .hymn-number {
    font-family: var(--font-display);
    font-weight: 600;
}

h1, h2, h3 { letter-spacing: -0.02em; }

a {
    color: var(--surface-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--surface-hover);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}
.black-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 55px;
    background-color: #000000;
    z-index: 1001;
}

@media (min-width: 768px) {
    .black-bar {
        display: none !important;
    }
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

/* Focus Styles for Accessibility */
:focus-visible {
    outline: 2px solid var(--surface-color);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background-color: var(--surface-color);
    color: var(--text-color);
}

/* ========================================
   Layout Components
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: var(--spacing-lg);
    }
}

.section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.section.active {
    display: block;
}

[hidden] {
    display: none !important;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Header
   ======================================== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    box-shadow: var(--shadow-md);
    z-index: var(--z-fixed);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-logo i {
    font-size: 24px;
    color: var(--surface-color);
}

.header-logo h1 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.desktop-nav {
    display: none;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-trigger-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-md);
    height: 40px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.search-trigger-btn:hover {
    background: var(--surface-color);
    color: white;
    border-color: var(--surface-color);
}

@media (min-width: 768px) {
    .desktop-nav {
        display: flex;
        align-items: center;
        gap: var(--spacing-xs);
    }
    
    .desktop-nav .nav-link {
        display: flex;
        align-items: center;
        gap: var(--spacing-xs);
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: var(--radius-md);
        color: var(--text-secondary);
        font-weight: 500;
        font-size: var(--font-size-sm);
        transition: all var(--transition-fast);
    }
    
    .desktop-nav .nav-link:hover {
        background: var(--bg-tertiary);
        color: var(--text-primary);
    }
    
    .desktop-nav .nav-link.active {
        background: var(--surface-color);
        color: var(--text-color);
    }
    
    .desktop-nav .nav-link i {
        font-size: 16px;
    }
}

/* ========================================
   Bottom Navigation (Mobile)
   ======================================== */
.bottom-nav {
    position: fixed;
    bottom: 55px; /* Sits exactly above the 55px black-bar */
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--bg-secondary);
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
    z-index: var(--z-fixed);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    border-top: 1px solid var(--border-color);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 500;
    min-width: 50px;
    min-height: 48px;
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
}

.nav-item i {
    font-size: 20px;
    transition: transform var(--transition-fast);
}

.nav-item.active {
    color: var(--surface-color);
}

.nav-item.active i {
    transform: scale(1.1);
}

.nav-item:active {
    background: var(--bg-tertiary);
}

@media (min-width: 768px) {
    .bottom-nav {
        display: none !important;
    }
    
    body {
        padding-bottom: 0;
    }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    min-height: 44px;
    min-width: 44px;
}

.btn-primary {
    background: var(--surface-color);
    color: #ffffff; /* Garante que o texto dentro de botões coloridos seja sempre legível */
}

.btn-primary:hover {
    filter: brightness(1.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--text-muted);
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    min-height: 52px;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    min-height: 32px;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-icon.active {
    color: var(--surface-color);
}

/* ========================================
   Forms
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 16px; /* Prevents zoom on iOS */
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--surface-color);
    box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.2);
}

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

.form-select {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-hint {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Toggle Switch */
.toggle-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}

.toggle-label input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch {
    position: relative;
    width: 52px;
    height: 28px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    width: 20px;
    height: 20px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.toggle-label input:checked + .toggle-switch {
    background: var(--surface-color);
}

.toggle-label input:checked + .toggle-switch::after {
    left: 28px;
    background: white;
}

/* Slider */
.slider-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.slider-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.slider-label-lg {
    font-size: var(--font-size-lg);
}

input[type="range"] {
    flex: 1;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    appearance: none;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--surface-color);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* ========================================
   Cards
   ======================================== */
.card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ========================================
   Hero Section (Editorial Asymmetric)
   ======================================== */
.hero-section {
    background-color: transparent;
    border: none;
    padding: var(--spacing-lg) 0 var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-xl);
    text-align: left;
    position: relative;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

@media (min-width: 768px) {
    .hero-section {
        padding: var(--spacing-xl) 0 var(--spacing-3xl) 0;
    }
}

.hero-section::after {
    content: '';
    position: absolute;
    top: -20%; left: -15%;
    width: 130vw; height: 130vw;
    background: radial-gradient(circle, rgba(197,160,89,0.12) 0%, rgba(0,0,0,0) 65%);
    pointer-events: none;
    z-index: 0;
}

@media (min-width: 768px) {
    .hero-section::after {
        width: 60vw; height: 60vw;
        left: -10%;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-content h2 {
    font-size: 2.8rem;
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.04em;
    max-width: 90%;
}

@media (min-width: 768px) {
    .hero-content h2 {
        font-size: 4.5rem;
        max-width: 65%;
    }
}

.hero-content p {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 300;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    letter-spacing: 0.02em;
    max-width: 85%;
}

@media (min-width: 768px) {
    .hero-content p {
        font-size: var(--font-size-lg);
        max-width: 45%;
    }
}

.home-search-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0 var(--spacing-lg);
    height: 56px;
    border-radius: var(--radius-full);
    width: 100%;
    max-width: 500px;
    font-size: var(--font-size-base);
    color: var(--text-muted);
    cursor: text;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.home-search-bar:hover {
    background: var(--bg-secondary);
    border-color: var(--surface-color);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.home-search-bar i {
    color: var(--text-secondary);
    font-size: 18px;
}

/* ========================================
   Quick Access Grid
   ======================================== */
.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .quick-access-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.quick-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 12px 6px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
}

@media (min-width: 768px) {
    .quick-card {
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
    }
}

.quick-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--surface-color);
}

.quick-card:active {
    transform: translateY(0);
}

.quick-card span {
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

@media (min-width: 768px) {
    .quick-card span {
        font-size: var(--font-size-base);
    }
}

.quick-icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--surface-color);
    border-radius: var(--radius-full);
    font-size: 16px;
    color: var(--surface-color);
    transition: all 0.4s ease;
}

@media (min-width: 768px) {
    .quick-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }
}

.quick-card:hover .quick-icon {
    background: var(--surface-color);
    color: #ffffff;
    transform: rotate(10deg);
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.section-header h2,
.section-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.see-all-link {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--surface-color);
}

/* ========================================
   Hymn Cards
   ======================================== */
.hymn-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 10px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

@media (min-width: 768px) {
    .hymn-card {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }
}

.hymn-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--surface-color);
}

.hymn-card:active {
    transform: scale(0.98);
}

.hymn-card-number {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    font-size: var(--font-size-base);
    font-weight: 400;
    color: var(--surface-color);
    flex-shrink: 0;
    font-family: var(--font-display);
}

@media (min-width: 768px) {
    .hymn-card-number {
        width: 48px;
        height: 48px;
        font-size: var(--font-size-lg);
    }
}

.hymn-card-info {
    flex: 1;
    min-width: 0;
}

.hymn-card-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (min-width: 768px) {
    .hymn-card-title {
        font-size: var(--font-size-base);
    }
}

.hymn-card-subtitle {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (min-width: 768px) {
    .hymn-card-subtitle {
        font-size: var(--font-size-sm);
    }
}

.hymn-card-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.hymn-card-actions .btn-icon {
    width: 32px;
    height: 32px;
}

@media (min-width: 768px) {
    .hymn-card-actions .btn-icon {
        width: 36px;
        height: 36px;
    }
}

/* Hymns List (Ultimate Compact Style for Mobile) */
.hymns-list {
    display: flex;
    flex-direction: column;
    gap: 0; /* Remove gap completely for true list feel */
}

@media (max-width: 767px) {
    .hymns-list .hymn-card {
        padding: 8px 4px;
        border: none;
        border-bottom: 1px solid var(--border-light);
        border-radius: 0;
        background: transparent;
    }
    
    .hymns-list .hymn-card:last-child {
        border-bottom: none;
    }
    
    .hymns-list .hymn-card-number {
        width: 34px;
        height: 34px;
        font-size: var(--font-size-sm);
        border: none; /* Make less prominent */
        background: var(--bg-tertiary);
        color: var(--text-primary);
    }
    
    .hymns-list .hymn-card-title {
        font-size: 13px; /* Smaller */
    }
    
    .hymns-list .hymn-card-subtitle {
        font-size: 11px;
    }
    
    .hymns-list .hymn-card-actions .btn-icon {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }
}

/* Recent Hymns Horizontal Scroll (Carousel Snap) */
.recent-hymns {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    padding-bottom: var(--spacing-md);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    scroll-padding: 0 var(--spacing-sm);
}

.recent-hymns::-webkit-scrollbar {
    display: none;
}

.recent-hymns .hymn-card {
    min-width: 80vw; /* Snap Carousel effect */
    scroll-snap-align: center;
    padding: var(--spacing-md); /* Consistent internal breathing room */
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
}

@media (min-width: 768px) {
    .recent-hymns .hymn-card {
        min-width: 350px;
        scroll-snap-align: start;
    }
}

/* ========================================
   Library Filters
   ======================================== */
.library-filters {
    display: flex;
    gap: var(--spacing-xs);
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--surface-color);
    color: white;
}

/* Alphabet Navigation */
.alphabet-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.alpha-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    background: transparent;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.alpha-btn:hover,
.alpha-btn.active {
    background: var(--surface-color);
    color: white;
}

/* Load More */
.load-more-container {
    display: flex;
    justify-content: center;
    padding: var(--spacing-lg) 0;
}

/* ========================================
   Playlists
   ======================================== */
.playlists-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.playlist-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.playlist-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--surface-color);
}

.playlist-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--surface-color);
    border-radius: var(--radius-md);
    font-size: 20px;
    color: var(--surface-color);
    flex-shrink: 0;
}

.playlist-info {
    flex: 1;
    min-width: 0;
}

.playlist-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

.playlist-meta {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.playlist-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* Playlists Mobile Ultra Compact List */
@media (max-width: 767px) {
    .playlists-list .playlist-card {
        padding: 8px 4px;
        border: none;
        border-bottom: 1px solid var(--border-light);
        border-radius: 0;
        background: transparent;
        gap: 12px;
    }
    
    .playlists-list .playlist-card:last-child {
        border-bottom: none;
    }
    
    .playlists-list .playlist-icon {
        width: 34px;
        height: 34px;
        font-size: 14px;
        border-radius: 4px;
    }
    
    .playlists-list .playlist-name {
        font-size: 13px;
    }
    
    .playlists-list .playlist-meta {
        font-size: 11px;
    }
}

/* Playlists Preview (Home Carousel) */
.playlists-preview {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    padding-bottom: var(--spacing-md);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    scroll-padding: 0 var(--spacing-sm);
}

.playlists-preview::-webkit-scrollbar {
    display: none;
}

.playlists-preview .playlist-card {
    min-width: 80vw;
    scroll-snap-align: center;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
}

@media (min-width: 768px) {
    .playlists-preview .playlist-card {
        min-width: 350px;
        scroll-snap-align: start;
    }
}

/* ========================================
   Empty States
   ======================================== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
}

.empty-state i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.empty-state h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.empty-state p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Settings
   ======================================== */
.settings-group {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.settings-group h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.settings-group h3 i {
    color: var(--surface-color);
}

.setting-item {
    margin-bottom: var(--spacing-md);
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label:not(.toggle-label) {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.setting-value {
    display: block;
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Themes Grid */
.themes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .themes-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.theme-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-card:hover {
    border-color: var(--text-muted);
}

.theme-card.active {
    border-color: var(--surface-color);
}

.theme-preview {
    width: 100%;
    height: 60px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: white;
}

.theme-name {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-secondary);
    text-align: center;
}

/* Logo Upload */
.logo-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.logo-upload-area:hover {
    border-color: var(--surface-color);
    background: var(--bg-tertiary);
}

.logo-placeholder i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.logo-placeholder p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.logo-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-preview img {
    max-width: 200px;
    max-height: 100px;
    object-fit: contain;
}

/* About Section */
.about-section .about-content {
    text-align: center;
}

.about-content p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.about-features {
    text-align: left;
    display: inline-block;
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    line-height: 2;
}

/* ========================================
   FAQ
   ======================================== */
.faq-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    text-align: left;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-icon {
    transition: transform var(--transition-fast);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.faq-answer[hidden] {
    display: none;
}

/* ========================================
   Hymn View
   ======================================== */
.hymn-view-section {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 55px; /* Deixa o espaço exato da black-bar livre */
    background: var(--bg-color);
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
}

@media (min-width: 768px) {
    .hymn-view-section {
        bottom: 0;
    }
}

.hymn-view-section[hidden] {
    display: none !important;
}

.hymn-view-section.active {
    display: flex;
}

.hymn-view-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.hymn-info {
    flex: 1;
    min-width: 0;
}

.hymn-number {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--surface-color);
}

.hymn-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hymn-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.hymn-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    overflow: hidden;
}

.verse-container {
    text-align: center;
    max-width: 900px;
    animation: verseIn 0.5s ease;
}

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

.verse-number {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--surface-color);
    margin-bottom: var(--spacing-md);
}

.verse-text {
    font-size: var(--hymn-font-size);
    font-weight: 700;
    line-height: var(--hymn-line-height);
    color: var(--text-primary);
}

.hymn-navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.nav-btn {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: 50%;
    font-size: 24px;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.nav-btn:hover {
    background: var(--surface-color);
    color: white;
}

.nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.verse-indicators {
    display: flex;
    gap: var(--spacing-sm);
}

.verse-indicator {
    width: 10px;
    height: 10px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.verse-indicator:hover {
    background: var(--text-muted);
}

.verse-indicator.active {
    background: var(--surface-color);
    transform: scale(1.2);
}

/* ========================================
   Search Modal
   ======================================== */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-color);
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
}

.search-modal[hidden] {
    display: none;
}

.search-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.search-header input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 16px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
}

.search-header input:focus {
    outline: none;
}

.search-results {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    -webkit-overflow-scrolling: touch;
}

.search-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
}

.search-placeholder i {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

/* ========================================
   Modals
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--spacing-md);
}

.modal[hidden] {
    display: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modalIn 0.3s ease;
}

.modal-sm {
    max-width: 360px;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* Playlists Select List */
.playlists-select-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    max-height: 300px;
    overflow-y: auto;
}

.playlist-select-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.playlist-select-item:hover {
    border-color: var(--surface-color);
}

.playlist-select-item i {
    font-size: 20px;
    color: var(--surface-color);
}

.playlist-select-item span {
    flex: 1;
    font-weight: 500;
}

/* ========================================
   Toast Notifications
   ======================================== */
.toast-container {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + 55px + var(--spacing-md) + env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

@media (min-width: 768px) {
    .toast-container {
        bottom: var(--spacing-lg);
    }
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--text-primary);
    color: var(--bg-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    pointer-events: auto;
    animation: toastIn 0.3s ease;
}

.toast.toast-success {
    background: #28a745;
    color: white;
}

.toast.toast-error {
    background: #dc3545;
    color: white;
}

.toast.toast-warning {
    background: #ffc107;
    color: #212529;
}

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

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

/* ========================================
   Projector Mode
   ======================================== */
.projector-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-color);
    z-index: var(--z-projector);
    display: flex;
    flex-direction: column;
    cursor: none;
}

.projector-overlay[hidden] {
    display: none;
}

.projector-logo {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    max-width: 150px;
    max-height: 80px;
    opacity: 0.8;
}

.projector-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.projector-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
}

.projector-verse-number {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--surface-color);
    margin-bottom: var(--spacing-lg);
}

.projector-verse-text {
    font-size: calc(var(--hymn-font-size) * 1.5);
    font-weight: 800;
    line-height: 1.3;
    color: var(--text-primary);
    max-width: 90%;
}

.projector-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    opacity: 0;
    transition: opacity var(--transition-normal);
    cursor: auto;
}

.projector-overlay:hover .projector-controls {
    opacity: 1;
}

.projector-btn {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 24px;
    color: white;
    transition: all var(--transition-fast);
}

.projector-btn:hover {
    background: var(--surface-color);
}

.projector-exit {
    position: absolute;
    right: var(--spacing-lg);
}

.projector-info {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   Footer
   ======================================== */
.app-footer {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.app-footer p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.app-footer .b20-link {
    color: var(--surface-color);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.app-footer .b20-link:hover {
    text-decoration: underline;
}

/* ========================================
   Skeleton Loading
   ======================================== */
.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton-card {
    height: 80px;
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-width: 480px) {
    .hero-content h2 {
        font-size: var(--font-size-xl);
    }
    
    .verse-text {
        font-size: calc(var(--hymn-font-size) * 0.7);
    }
    
    .projector-verse-text {
        font-size: var(--hymn-font-size);
    }
}

@media (min-width: 768px) {
    .hero-section {
        padding: var(--spacing-2xl) var(--spacing-2xl);
    }
    
    .hero-content h2 {
        font-size: var(--font-size-3xl);
    }
}

@media (min-width: 1024px) {
    .hymns-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .app-header,
    .bottom-nav,
    .hymn-navigation,
    .hymn-actions,
    .toast-container {
        display: none !important;
    }
    
    body {
        padding: 0;
    }
    
    .verse-text {
        font-size: 24pt;
        color: black;
    }
}

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

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: rgba(255, 255, 255, 0.3);
    }
    
    .btn-primary {
        border: 2px solid white;
    }
}

/* ========================================
   Mobile Feature Toggles
   ======================================== */
@media (max-width: 767px) {
    /* Hide Fullscreen / Projector Mode on Mobile */
    #projector-btn,
    #hymn-fullscreen-btn,
    #search-toggle {
        display: none !important;
    }
}