/**
 * Movie Release Calendar Styles
 * Features: Dark/Light Mode, Glassmorphism, Loading Skeletons, Custom Responsive Calendar Grid
 * Optimized for buttery-smooth 60fps performance on mobile devices.
 */

/* ==========================================================================
   CSS Variables & Theming
   ========================================================================== */
:root {
    /* Light Mode */
    --bg-color: #f4f6f8;
    --text-primary: #141414;
    --text-secondary: #6c757d;
    --border-color: rgba(0, 0, 0, 0.1);
    --card-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
    
    /* Netflix Inspired Primary */
    --brand-primary: #E50914;
    --brand-hover: #b20710;
    
    /* Calendar Specific - Light Glassmorphism */
    --cal-day-bg: rgba(255, 255, 255, 0.4);
    --cal-day-hover: rgba(255, 255, 255, 0.7);
    --cal-past-bg: rgba(248, 249, 250, 0.3);
    --cal-past-text: #adb5bd;
    --cal-weekend-bg: rgba(253, 253, 254, 0.45);
    --cal-today-bg: rgba(255, 243, 244, 0.6);
    --cal-today-border: var(--brand-primary);
    
    /* Transitions */
    --transition-speed: 0.3s;
}

[data-bs-theme="dark"] {
    /* Dark Mode (Default Experience) */
    --bg-color: #141414;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --border-color: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(20, 20, 20, 0.75);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    /* Calendar Specific - Dark Glassmorphism */
    --cal-day-bg: rgba(33, 37, 41, 0.5);
    --cal-day-hover: rgba(44, 48, 52, 0.8);
    --cal-past-bg: rgba(26, 29, 32, 0.3);
    --cal-past-text: #6c757d;
    --cal-weekend-bg: rgba(30, 34, 38, 0.45);
    --cal-today-bg: rgba(43, 18, 20, 0.7);
}

/* ==========================================================================
   Global Styles (Optimized Background)
   ========================================================================== */


body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    
    /* NEW: Prevent fixed coordinate bugs on mobile scroll shifts */
    overflow-x: hidden;
}

/* --- FIXED BACKGROUND WORKAROUND FOR MOBILE & IOS --- */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    
    /* Attach your background image here */
    background-image: url('https://moviesr.net/movie_calendar/assets/images/bg1.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    
    /* Send it behind all other document layers */
    z-index: -1; 
    
    /* Hardware acceleration hook to keep scrolling silky smooth */
    transform: translate3d(0, 0, 0);
    will-change: transform;
}


a {
    color: var(--brand-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.btn-primary {
    background-color: var(--brand-primary);
    border-color: var(--brand-primary);
}

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--brand-hover);
    border-color: var(--brand-hover);
}

/* ==========================================================================
   Glassmorphism Components
   ========================================================================== */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
    border-radius: 12px;
}

/* ==========================================================================
   Calendar Grid System (Responsive)
   ========================================================================== */
.calendar-wrapper {
    margin-top: 2rem;
    margin-bottom: 3rem;
}

/* Mobile-friendly horizontal scroll wrapper */
.calendar-responsive-container {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--brand-primary) transparent;
    border-radius: 8px;
}

.calendar-responsive-container::-webkit-scrollbar {
    height: 6px;
}

.calendar-responsive-container::-webkit-scrollbar-thumb {
    background-color: var(--brand-primary);
    border-radius: 3px;
}

.calendar-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-weight: bold;
    padding-bottom: 0.5rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    min-width: 600px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0;
    border-top: 1px solid var(--border-color);
    border-left: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    min-width: 600px;
}

/* ==========================================================================
   Calendar Day States (With Glowing Borders & Mobile GPU Optimization)
   ========================================================================== */

/* 1. Hardware-accelerated stacking context to prevent browser text-flicker */
.day-number, .movie-count-badge {
    position: relative;
    z-index: 5;
}

/* 2. Base Calendar Day Cell (Permanent Neon Blue border glow) */
.calendar-day {
    aspect-ratio: 1 / 1;
    min-height: 100px;
    background-color: var(--cal-day-bg);
    padding: 8px;
    position: relative;
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    cursor: default;
    display: flex;
    flex-direction: column;
    
    /* Permanent Glowing Borders */
    border: 1px solid rgba(0, 153, 255, 0.5);
    box-shadow: 
        0 0 15px rgba(0, 153, 255, 0.3),
        inset 0 0 10px rgba(0, 153, 255, 0.15);
    border-radius: 6px;
}

/* 3. Hover State (Intensifies Neon Blue glow) */
.calendar-day:hover:not(.empty-day) {
    background-color: var(--cal-day-hover);
    border-color: rgba(0, 153, 255, 0.9);
    box-shadow: 
        0 0 25px rgba(0, 153, 255, 0.7), 
        inset 0 0 15px rgba(0, 153, 255, 0.4);
    z-index: 10; /* Bring highlighted cell to front over the grid line */
}

/* 4. Weekend and Past States */
.calendar-day.weekend {
    background-color: var(--cal-weekend-bg);
}

.calendar-day.past {
    background-color: var(--cal-past-bg);
    color: var(--cal-past-text);
}

/* 5. The 'Today' Cell (Stark Contrasting Red to stand out from the Blue grid) */
.calendar-day.today {
    background-color: var(--cal-today-bg);
    border: 1px solid var(--brand-primary);
    box-shadow: 
        0 0 25px rgba(229, 9, 20, 0.8), 
        inset 0 0 15px rgba(229, 9, 20, 0.4);
    z-index: 5;
}

/* 6. Empty Padding Days (De-glowed entirely so current month remains the focus) */
.calendar-day.other-month {
    opacity: 0.4;
    background-color: var(--cal-past-bg);
    box-shadow: none;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.day-number {
    font-size: 1.1rem;
    font-weight: 600;
    align-self: flex-end;
}

.calendar-day.today .day-number {
    color: var(--brand-primary);
}

/* Movie Count Badge inside Calendar Cell */
.movie-count-badge {
    margin-top: auto;
    background-color: var(--brand-primary);
    color: white;
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    text-align: center;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(229, 9, 20, 0.3);
    transition: transform 0.2s ease, background-color 0.2s ease;
    font-weight: bold;
}

.movie-count-badge:hover {
    transform: translateY(-2px);
    background-color: var(--brand-hover);
}

/* ==========================================================================
   Tippy.js Tooltip Customization (The Popup)
   ========================================================================== */
.tippy-box[data-theme~='movies'] {
    background-color: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    max-width: 350px !important;
}

.tippy-box[data-theme~='movies'] .tippy-content {
    padding: 0;
}

.popup-content {
    display: flex;
    flex-direction: column;
    max-height: 500px;
}

.popup-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: inherit;
    z-index: 10;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.popup-header h6 {
    margin: 0;
    font-weight: bold;
    color: var(--brand-primary);
}

.popup-body {
    overflow-y: auto;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: var(--brand-primary) transparent;
}

.popup-body::-webkit-scrollbar {
    width: 6px;
}
.popup-body::-webkit-scrollbar-thumb {
    background-color: var(--brand-primary);
    border-radius: 3px;
}

.movie-tooltip-item {
    display: flex;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

.movie-tooltip-item:last-child {
    border-bottom: none;
}

.movie-tooltip-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}
[data-bs-theme="light"] .movie-tooltip-item:hover {
    background-color: rgba(0, 0, 0, 0.03);
}

.movie-tooltip-poster {
    width: 60px;
    height: 90px;
    object-fit: cover;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    flex-shrink: 0;
}

.movie-tooltip-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.movie-tooltip-title {
    font-size: 1rem;
    font-weight: bold;
    margin-bottom: 4px;
    line-height: 1.2;
}

.movie-tooltip-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.movie-tooltip-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 8px;
}

.movie-tooltip-badges .badge {
    font-size: 0.65rem;
    font-weight: normal;
}

/* ==========================================================================
   Movie Details Modal Customization
   ========================================================================== */
#movieDetailsModal .modal-content {
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
}

.modal-poster {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

/* ==========================================================================
   Loading Skeletons
   ========================================================================== */
.skeleton {
    background: #eee;
    background: linear-gradient(110deg, #ececec 8%, #f5f5f5 18%, #ececec 33%);
    border-radius: 4px;
    background-size: 200% 100%;
    animation: 1.5s shimmer linear infinite;
}

[data-bs-theme="dark"] .skeleton {
    background: linear-gradient(110deg, #2a2a2a 8%, #3a3a3a 18%, #2a2a2a 33%);
    background-size: 200% 100%;
}

.skeleton-text {
    height: 12px;
    margin-bottom: 8px;
    width: 100%;
}

.skeleton-poster {
    width: 60px;
    height: 90px;
    border-radius: 6px;
}

@keyframes shimmer {
    to {
        background-position-x: -200%;
    }
}

/* ==========================================================================
   Responsive Utilities
   ========================================================================== */
@media (max-width: 768px) {
    .calendar-day {
        min-height: 90px;
        padding: 6px;
    }
    
    .day-number {
        font-size: 0.95rem;
    }
    
    .movie-count-badge {
        font-size: 0.75rem;
        padding: 0.2rem 0.3rem;
    }
    
    .calendar-header {
        font-size: 0.75rem;
    }
}