/* =========================================
   DEEN BAND - STYLES
   Islamic-inspired elegant design
   ========================================= */

/* -----------------------------------------
   CSS VARIABLES & THEME
   ----------------------------------------- */
:root {
    /* Light Theme (Default) */
    --color-bg-primary: #f8f6f1;
    --color-bg-secondary: #ffffff;
    --color-bg-card: rgba(255, 255, 255, 0.92);
    --color-text-primary: #1a2e1a;
    --color-text-secondary: #4a5d4a;
    --color-text-muted: #6b7c6b;
    --color-accent-primary: #2d5a3d;
    --color-accent-secondary: #c9a227;
    --color-accent-gold: #d4af37;
    --color-border: rgba(45, 90, 61, 0.15);
    --color-overlay: rgba(26, 46, 26, 0.55);
    --color-shadow: rgba(26, 46, 26, 0.12);
    
    /* Typography */
    --font-arabic: 'Amiri', 'Traditional Arabic', serif;
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Cormorant Garamond', Georgia, serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-medium: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-background: 800ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
    --color-bg-primary: #0f1a14;
    --color-bg-secondary: #1a2e1a;
    --color-bg-card: rgba(26, 46, 26, 0.88);
    --color-text-primary: #f0ebe0;
    --color-text-secondary: #c5d4c5;
    --color-text-muted: #8fa08f;
    --color-accent-primary: #5a9b6d;
    --color-accent-secondary: #d4af37;
    --color-accent-gold: #e6c547;
    --color-border: rgba(90, 155, 109, 0.2);
    --color-overlay: rgba(10, 20, 14, 0.65);
    --color-shadow: rgba(0, 0, 0, 0.3);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* -----------------------------------------
   BACKGROUND LAYER
   ----------------------------------------- */
.background-layer {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.background-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity var(--transition-background);
    transform: scale(1.02);
}

.background-image.loaded {
    opacity: 1;
    animation: subtleZoom 30s ease-in-out infinite alternate;
}

@keyframes subtleZoom {
    0% { transform: scale(1.02); }
    100% { transform: scale(1.08); }
}

.background-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-overlay);
    transition: background var(--transition-slow);
}

.background-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23d4af37' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

/* Fallback gradient when no image */
.background-image.fallback {
    opacity: 1;
    background: linear-gradient(
        135deg,
        #1a3a2f 0%,
        #2d5a3d 25%,
        #1a4a35 50%,
        #0f2a1f 75%,
        #1a3a2f 100%
    );
    background-size: 400% 400%;
    animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* -----------------------------------------
   MAIN CONTAINER
   ----------------------------------------- */
.main-container {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-lg);
    position: relative;
}

/* -----------------------------------------
   HEADER
   ----------------------------------------- */
.header {
    width: 100%;
    max-width: 800px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 0;
    margin-bottom: var(--space-xl);
    animation: fadeSlideDown 0.6s ease-out;
}

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

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

.logo-icon {
    font-size: 1.75rem;
    color: var(--color-accent-gold);
    text-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
}

.theme-toggle {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-medium);
    backdrop-filter: blur(8px);
}

.theme-toggle:hover {
    transform: scale(1.08);
    box-shadow: 0 4px 16px var(--color-shadow);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-icon {
    font-size: 1.25rem;
    transition: transform var(--transition-medium);
}

.theme-toggle:hover .theme-icon {
    transform: rotate(15deg);
}

/* -----------------------------------------
   VERSE CARD
   ----------------------------------------- */
.verse-card {
    width: 100%;
    max-width: 700px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl) var(--space-xl);
    backdrop-filter: blur(16px);
    box-shadow: 
        0 4px 24px var(--color-shadow),
        0 1px 2px var(--color-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all var(--transition-slow);
    animation: fadeSlideUp 0.8s ease-out 0.2s both;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 400px;
}

@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.verse-card:hover {
    box-shadow: 
        0 8px 40px var(--color-shadow),
        0 2px 4px var(--color-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-2xl);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    font-family: var(--font-display);
    font-size: 1.125rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* Verse Content */
.verse-content {
    text-align: center;
    animation: contentFadeIn 0.6s ease-out;
}

@keyframes contentFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.verse-ornament {
    font-size: 1.5rem;
    color: var(--color-accent-gold);
    opacity: 0.6;
    letter-spacing: 0.5em;
    margin: var(--space-md) 0;
}

.verse-ornament.top {
    margin-bottom: var(--space-xl);
}

.verse-ornament.bottom {
    margin-top: var(--space-xl);
}

/* Arabic Section */
.arabic-section {
    margin-bottom: var(--space-xl);
}

.arabic-text {
    font-family: var(--font-arabic);
    font-size: clamp(1.5rem, 5vw, 2.25rem);
    line-height: 2;
    color: var(--color-text-primary);
    text-align: center;
    direction: rtl;
    font-weight: 400;
}

/* Verse Divider */
.verse-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--space-xl) 0;
}

.divider-ornament {
    color: var(--color-accent-gold);
    font-size: 0.875rem;
    opacity: 0.8;
}

.verse-divider::before,
.verse-divider::after {
    content: '';
    flex: 1;
    max-width: 100px;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        var(--color-accent-gold),
        transparent
    );
    opacity: 0.4;
}

.verse-divider::before {
    margin-right: var(--space-md);
}

.verse-divider::after {
    margin-left: var(--space-md);
}

/* Translation Section */
.translation-section {
    margin-bottom: var(--space-lg);
}

.translation-text {
    font-family: var(--font-display);
    font-size: clamp(1.125rem, 3vw, 1.375rem);
    line-height: 1.8;
    color: var(--color-text-secondary);
    font-style: italic;
    font-weight: 400;
    max-width: 580px;
    margin: 0 auto;
}

/* Verse Reference */
.verse-reference {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    flex-wrap: wrap;
}

.surah-name {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-accent-primary);
    letter-spacing: 0.03em;
}

.verse-separator {
    color: var(--color-accent-gold);
    font-size: 0.75rem;
}

.verse-number {
    font-family: var(--font-display);
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

/* Error State */
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-2xl);
    text-align: center;
}

.error-icon {
    font-size: 2.5rem;
    opacity: 0.6;
}

.error-message {
    font-family: var(--font-display);
    font-size: 1.125rem;
    color: var(--color-text-muted);
}

.retry-button {
    font-family: var(--font-display);
    font-size: 1rem;
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-medium);
    margin-top: var(--space-sm);
}

.retry-button:hover {
    background: var(--color-accent-secondary);
    transform: translateY(-2px);
}

/* -----------------------------------------
   TIMER SECTION
   ----------------------------------------- */
.timer-section {
    margin-top: var(--space-xl);
    text-align: center;
    animation: fadeSlideUp 0.8s ease-out 0.4s both;
}

.timer-label {
    font-family: var(--font-display);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--space-sm);
}

.timer-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
}

.timer-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 50px;
}

.timer-value {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 300;
    color: var(--color-text-primary);
    letter-spacing: 0.05em;
}

.timer-name {
    font-family: var(--font-display);
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.timer-colon {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-accent-gold);
    opacity: 0.6;
    margin-bottom: 1rem;
    animation: blink 1s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 0.2; }
}

/* -----------------------------------------
   FOOTER
   ----------------------------------------- */
.footer {
    margin-top: auto;
    padding-top: var(--space-2xl);
    text-align: center;
    animation: fadeSlideUp 0.8s ease-out 0.6s both;
}

.footer-brand {
    font-family: var(--font-display);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.photo-credit {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    opacity: 0.7;
    margin-top: var(--space-sm);
}

.photo-credit a {
    color: var(--color-text-muted);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition-fast);
}

.photo-credit a:hover {
    color: var(--color-accent-gold);
}

.footer-verse-count {
    font-family: var(--font-body);
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    opacity: 0.5;
    margin-top: var(--space-xs);
}

/* -----------------------------------------
   MODAL
   ----------------------------------------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    z-index: 1000;
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    max-width: 420px;
    text-align: center;
    animation: modalSlideUp 0.4s ease-out;
}

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

.modal-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.modal-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.modal-message {
    font-family: var(--font-display);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.modal-button {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    padding: var(--space-md) var(--space-xl);
    background: linear-gradient(135deg, var(--color-accent-primary), #3d7a5d);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-medium);
    letter-spacing: 0.05em;
}

.modal-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(45, 90, 61, 0.4);
}

/* -----------------------------------------
   RESPONSIVE
   ----------------------------------------- */
@media (max-width: 640px) {
    .main-container {
        padding: var(--space-md);
    }
    
    .verse-card {
        padding: var(--space-xl) var(--space-lg);
        border-radius: var(--radius-lg);
        min-height: 350px;
    }
    
    .header {
        margin-bottom: var(--space-lg);
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
    
    .arabic-text {
        line-height: 1.8;
    }
    
    .verse-ornament {
        font-size: 1.25rem;
    }
    
    .timer-section {
        margin-top: var(--space-lg);
    }
}

@media (max-width: 380px) {
    .verse-card {
        padding: var(--space-lg) var(--space-md);
    }
    
    .timer-unit {
        min-width: 40px;
    }
}

/* -----------------------------------------
   ACCESSIBILITY
   ----------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .background-image.loaded {
        animation: none;
        transform: scale(1.02);
    }
}

/* Focus Styles */
:focus-visible {
    outline: 2px solid var(--color-accent-gold);
    outline-offset: 3px;
}

button:focus:not(:focus-visible) {
    outline: none;
}

/* Selection */
::selection {
    background: var(--color-accent-gold);
    color: var(--color-bg-primary);
}