/* ==========================================================================
   CineShelf — Seasonal & Holiday Themes Engine (seasonal-themes.css)
   Automatic date-based atmospheric themes:
     - Cadılar Bayramı (Halloween)       [Oct 24 – Nov 2]
     - Yılbaşı & Kış (New Year / Winter) [Dec 15 – Jan 7]
     - Sevgililer Günü (Valentine's)     [Feb 10 – Feb 17]
     - Cumhuriyet Bayramı                [Oct 28 – Oct 29]
   ========================================================================== */

/* ==========================================================================
   1. CADILAR BAYRAMI (HALLOWEEN)
   ========================================================================== */
html[data-seasonal-theme="halloween"] {
    --cs-gold: #ff7a18;
    --cs-gold-light: #ffd19a;
    --cs-gold-dark: #b84300;
    --primary: #ff7a18;
    --primary-light: #ffd19a;
    --primary-dark: #b84300;
    --secondary: #9030ea;
    --accent: #52e080;
    --text-gold: #ff8e36;
    --border-gold: rgba(255, 122, 24, 0.45);
    --cs-line-gold: rgba(255, 122, 24, 0.35);
    --cs-gradient-gold: linear-gradient(115deg, #7819bf 0%, #ff7a18 45%, #ffb356 75%, #ff5b14 100%);
    --gradient-gold: linear-gradient(135deg, #7819bf 0%, #ff7a18 50%, #ffb356 100%);
    --shadow-gold: 0 4px 25px rgba(255, 122, 24, 0.45);
    --shadow-glow: 0 0 35px rgba(144, 48, 234, 0.45);
}

html[data-seasonal-theme="halloween"]:not([data-watch-mode="couple"]) body {
    background:
        radial-gradient(1200px 650px at 85% -10%, rgba(255, 122, 24, 0.12), transparent 60%),
        radial-gradient(900px 550px at -10% 45%, rgba(120, 25, 191, 0.12), transparent 60%),
        #0b070e !important;
}

html[data-seasonal-theme="halloween"] body .navbar.cs-shared-navbar {
    border-bottom-color: rgba(255, 122, 24, 0.22) !important;
}

html[data-seasonal-theme="halloween"] .cs-shared-navbar .nav-links a.active,
html[data-seasonal-theme="halloween"] .cs-shared-navbar a:hover {
    color: #ff9d47 !important;
}

html[data-seasonal-theme="halloween"] body .btn-primary,
html[data-seasonal-theme="halloween"] .cs-discover .type-btn.active,
html[data-seasonal-theme="halloween"] .cs-discover .chat-input button {
    background: linear-gradient(115deg, #8721cf 0%, #ff7a18 50%, #ff9d47 100%) !important;
    border-color: #ff7a18 !important;
    color: #0b070e !important;
    box-shadow: 0 10px 30px -10px rgba(255, 122, 24, 0.65) !important;
}

html[data-seasonal-theme="halloween"] .cs-gradient-text {
    background-image: linear-gradient(115deg, #b05bf8 0%, #ff7a18 50%, #ffb356 100%) !important;
}

html[data-seasonal-theme="halloween"] .cs-hero-veil {
    background: linear-gradient(90deg, #0b070ef5, #0b070e70) !important;
}

html[data-seasonal-theme="halloween"] .discover-hero {
    background: radial-gradient(ellipse at 75% 30%, rgba(255, 122, 24, 0.18), transparent 65%) !important;
}

html[data-seasonal-theme="halloween"] .discover-halo {
    background: radial-gradient(ellipse, rgba(144, 48, 234, 0.2), transparent 65%) !important;
}

html[data-seasonal-theme="halloween"] .cs-eyebrow {
    color: #ff8e36;
}

html[data-seasonal-theme="halloween"] .movie-card:hover,
html[data-seasonal-theme="halloween"] .film-card:hover {
    border-color: rgba(255, 122, 24, 0.5) !important;
    box-shadow: 0 14px 40px -10px rgba(255, 122, 24, 0.35) !important;
}

/* ==========================================================================
   2. YILBAŞI & KIŞ (NEW YEAR & WINTER FESTIVE)
   ========================================================================== */
html[data-seasonal-theme="newyear"] {
    --cs-gold: #52c2ff;
    --cs-gold-light: #e0f4ff;
    --cs-gold-dark: #0077b6;
    --primary: #52c2ff;
    --primary-light: #e0f4ff;
    --primary-dark: #0088cc;
    --secondary: #f4c430;
    --accent: #52e0c4;
    --text-gold: #7ed4ff;
    --border-gold: rgba(82, 194, 255, 0.45);
    --cs-line-gold: rgba(82, 194, 255, 0.32);
    --cs-gradient-gold: linear-gradient(115deg, #0077b6 0%, #52c2ff 40%, #fff1b8 75%, #f4c430 100%);
    --gradient-gold: linear-gradient(135deg, #0077b6 0%, #52c2ff 50%, #f4c430 100%);
    --shadow-gold: 0 4px 25px rgba(82, 194, 255, 0.45);
    --shadow-glow: 0 0 35px rgba(244, 196, 48, 0.4);
}

html[data-seasonal-theme="newyear"]:not([data-watch-mode="couple"]) body {
    background:
        radial-gradient(1200px 650px at 85% -10%, rgba(82, 194, 255, 0.12), transparent 60%),
        radial-gradient(900px 550px at -10% 45%, rgba(244, 196, 48, 0.08), transparent 60%),
        #060a12 !important;
}

html[data-seasonal-theme="newyear"] body .navbar.cs-shared-navbar {
    border-bottom-color: rgba(82, 194, 255, 0.22) !important;
}

html[data-seasonal-theme="newyear"] .cs-shared-navbar .nav-links a.active,
html[data-seasonal-theme="newyear"] .cs-shared-navbar a:hover {
    color: #92dcff !important;
}

html[data-seasonal-theme="newyear"] body .btn-primary,
html[data-seasonal-theme="newyear"] .cs-discover .type-btn.active,
html[data-seasonal-theme="newyear"] .cs-discover .chat-input button {
    background: linear-gradient(115deg, #0084cc 0%, #52c2ff 50%, #ffeaa7 100%) !important;
    border-color: #52c2ff !important;
    color: #050b14 !important;
    box-shadow: 0 10px 30px -10px rgba(82, 194, 255, 0.65) !important;
}

html[data-seasonal-theme="newyear"] .cs-gradient-text {
    background-image: linear-gradient(115deg, #95deff 0%, #ffffff 50%, #ffeaa7 100%) !important;
}

html[data-seasonal-theme="newyear"] .cs-hero-veil {
    background: linear-gradient(90deg, #060a12f5, #060a1270) !important;
}

html[data-seasonal-theme="newyear"] .discover-hero {
    background: radial-gradient(ellipse at 75% 30%, rgba(82, 194, 255, 0.18), transparent 65%) !important;
}

html[data-seasonal-theme="newyear"] .discover-halo {
    background: radial-gradient(ellipse, rgba(244, 196, 48, 0.16), transparent 65%) !important;
}

html[data-seasonal-theme="newyear"] .cs-eyebrow {
    color: #7ed4ff;
}

html[data-seasonal-theme="newyear"] .movie-card:hover,
html[data-seasonal-theme="newyear"] .film-card:hover {
    border-color: rgba(82, 194, 255, 0.5) !important;
    box-shadow: 0 14px 40px -10px rgba(82, 194, 255, 0.35) !important;
}

/* ==========================================================================
   3. SEVGİLİLER GÜNÜ (VALENTINE'S DAY)
   ========================================================================== */
html[data-seasonal-theme="valentines"] {
    --cs-gold: #ff4d6d;
    --cs-gold-light: #ffd3dc;
    --cs-gold-dark: #a81c3c;
    --primary: #ff4d6d;
    --primary-light: #ffd3dc;
    --primary-dark: #a81c3c;
    --secondary: #ff758f;
    --accent: #ffb3c1;
    --text-gold: #ff758f;
    --border-gold: rgba(255, 77, 109, 0.45);
    --cs-line-gold: rgba(255, 77, 109, 0.35);
    --cs-gradient-gold: linear-gradient(115deg, #961233 0%, #ff4d6d 45%, #ffb3c1 75%, #ff758f 100%);
    --gradient-gold: linear-gradient(135deg, #961233 0%, #ff4d6d 50%, #ffd3dc 100%);
    --shadow-gold: 0 4px 25px rgba(255, 77, 109, 0.45);
    --shadow-glow: 0 0 35px rgba(255, 77, 109, 0.35);
}

html[data-seasonal-theme="valentines"]:not([data-watch-mode="couple"]) body {
    background:
        radial-gradient(1200px 650px at 85% -10%, rgba(255, 77, 109, 0.13), transparent 60%),
        radial-gradient(900px 550px at -10% 45%, rgba(184, 22, 64, 0.11), transparent 60%),
        #10070c !important;
}

html[data-seasonal-theme="valentines"] body .navbar.cs-shared-navbar {
    border-bottom-color: rgba(255, 77, 109, 0.22) !important;
}

html[data-seasonal-theme="valentines"] .cs-shared-navbar .nav-links a.active,
html[data-seasonal-theme="valentines"] .cs-shared-navbar a:hover {
    color: #ffa3b4 !important;
}

html[data-seasonal-theme="valentines"] body .btn-primary,
html[data-seasonal-theme="valentines"] .cs-discover .type-btn.active,
html[data-seasonal-theme="valentines"] .cs-discover .chat-input button {
    background: linear-gradient(115deg, #b81640 0%, #ff4d6d 50%, #ffb3c1 100%) !important;
    border-color: #ff4d6d !important;
    color: #1a050d !important;
    box-shadow: 0 10px 30px -10px rgba(255, 77, 109, 0.65) !important;
}

html[data-seasonal-theme="valentines"] .cs-gradient-text {
    background-image: linear-gradient(115deg, #ff758f 0%, #ffa3b4 50%, #ffd3dc 100%) !important;
}

html[data-seasonal-theme="valentines"] .cs-hero-veil {
    background: linear-gradient(90deg, #10070cf5, #10070c70) !important;
}

html[data-seasonal-theme="valentines"] .discover-hero {
    background: radial-gradient(ellipse at 75% 30%, rgba(255, 77, 109, 0.18), transparent 65%) !important;
}

html[data-seasonal-theme="valentines"] .discover-halo {
    background: radial-gradient(ellipse, rgba(255, 77, 109, 0.2), transparent 65%) !important;
}

html[data-seasonal-theme="valentines"] .cs-eyebrow {
    color: #ff758f;
}

html[data-seasonal-theme="valentines"] .movie-card:hover,
html[data-seasonal-theme="valentines"] .film-card:hover {
    border-color: rgba(255, 77, 109, 0.5) !important;
    box-shadow: 0 14px 40px -10px rgba(255, 77, 109, 0.35) !important;
}

/* ==========================================================================
   4. CUMHURİYET BAYRAMI (REPUBLIC DAY)
   ========================================================================== */
html[data-seasonal-theme="cumhuriyet"] {
    --cs-gold: #e30a17;
    --cs-gold-light: #ffffff;
    --cs-gold-dark: #9e050f;
    --primary: #e30a17;
    --primary-light: #ffffff;
    --primary-dark: #9e050f;
    --secondary: #d4af37;
    --accent: #ffffff;
    --text-gold: #ff5c65;
    --border-gold: rgba(227, 10, 23, 0.45);
    --cs-line-gold: rgba(227, 10, 23, 0.35);
    --cs-gradient-gold: linear-gradient(115deg, #9e050f 0%, #e30a17 40%, #ffffff 70%, #e30a17 95%);
    --gradient-gold: linear-gradient(135deg, #9e050f 0%, #e30a17 50%, #ffffff 100%);
    --shadow-gold: 0 4px 25px rgba(227, 10, 23, 0.45);
    --shadow-glow: 0 0 35px rgba(227, 10, 23, 0.35);
}

html[data-seasonal-theme="cumhuriyet"]:not([data-watch-mode="couple"]) body {
    background:
        radial-gradient(1200px 650px at 85% -10%, rgba(227, 10, 23, 0.12), transparent 60%),
        radial-gradient(900px 550px at -10% 45%, rgba(255, 255, 255, 0.05), transparent 60%),
        #0d0607 !important;
}

html[data-seasonal-theme="cumhuriyet"] body .navbar.cs-shared-navbar {
    border-bottom-color: rgba(227, 10, 23, 0.25) !important;
}

html[data-seasonal-theme="cumhuriyet"] .cs-shared-navbar .nav-links a.active,
html[data-seasonal-theme="cumhuriyet"] .cs-shared-navbar a:hover {
    color: #ff6871 !important;
}

html[data-seasonal-theme="cumhuriyet"] body .btn-primary,
html[data-seasonal-theme="cumhuriyet"] .cs-discover .type-btn.active,
html[data-seasonal-theme="cumhuriyet"] .cs-discover .chat-input button {
    background: linear-gradient(115deg, #b30612 0%, #e30a17 50%, #ffffff 100%) !important;
    border-color: #e30a17 !important;
    color: #0e0505 !important;
    box-shadow: 0 10px 30px -10px rgba(227, 10, 23, 0.65) !important;
}

html[data-seasonal-theme="cumhuriyet"] .cs-gradient-text {
    background-image: linear-gradient(115deg, #ff4d58 0%, #ffffff 50%, #ff4d58 100%) !important;
}

/* ==========================================================================
   5. LOGO BADGE & NAV ACCENTS
   ========================================================================== */
.cs-seasonal-logo-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1;
    margin-left: 6px;
    vertical-align: middle;
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.4));
    transition: transform 0.3s ease;
    user-select: none;
    pointer-events: none;
}

.logo:hover .cs-seasonal-logo-badge {
    transform: scale(1.22) rotate(-8deg);
}

/* ==========================================================================
   6. FLOATING SEASONAL SWITCHER & BADGE
   ========================================================================== */
.cs-seasonal-pill {
    position: fixed;
    bottom: 22px;
    right: 22px;
    z-index: 2147481000;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(15, 15, 18, 0.88);
    border: 1px solid var(--cs-line-gold);
    color: var(--cs-white);
    padding: 7px 14px;
    border-radius: 999px;
    font: 600 12px/1.3 var(--cs-font-body, system-ui, sans-serif);
    cursor: pointer;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.6), 0 0 18px -4px var(--cs-gold);
    transition: all 0.28s var(--cs-ease, ease);
    outline: none;
}

.cs-seasonal-pill:hover {
    transform: translateY(-2px) scale(1.03);
    border-color: var(--cs-gold);
    color: #fff;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.7), 0 0 24px -2px var(--cs-gold);
}

.cs-seasonal-pill .cs-seasonal-icon {
    font-size: 15px;
    line-height: 1;
    filter: drop-shadow(0 0 4px var(--cs-gold));
}

.cs-seasonal-pill .cs-seasonal-label {
    letter-spacing: 0.02em;
}

.cs-seasonal-pill .cs-seasonal-arrow {
    font-size: 10px;
    opacity: 0.7;
    margin-left: 2px;
    transition: transform 0.2s ease;
}

.cs-seasonal-pill[aria-expanded="true"] .cs-seasonal-arrow {
    transform: rotate(180deg);
}

/* Modal / Dropdown Dialog */
.cs-seasonal-modal {
    position: fixed;
    bottom: 64px;
    right: 22px;
    z-index: 2147481001;
    width: 320px;
    max-width: calc(100vw - 32px);
    background: linear-gradient(165deg, rgba(22, 22, 28, 0.97), rgba(12, 12, 16, 0.98));
    border: 1px solid var(--cs-line-gold);
    border-radius: 20px;
    padding: 18px 20px;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8), 0 0 35px -8px var(--cs-gold);
    color: var(--cs-white);
    display: none;
    flex-direction: column;
    gap: 14px;
    font-family: var(--cs-font-body, system-ui, sans-serif);
    animation: cs-fade-up 0.25s var(--cs-ease, ease);
}

.cs-seasonal-modal.active {
    display: flex;
}

@keyframes cs-fade-up {
    from { opacity: 0; transform: translateY(12px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.cs-seasonal-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cs-seasonal-modal-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--cs-gold-light);
    display: flex;
    align-items: center;
    gap: 7px;
}

.cs-seasonal-modal-close {
    background: transparent;
    border: 0;
    color: var(--cs-muted);
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
    border-radius: 6px;
    transition: color 0.2s;
}

.cs-seasonal-modal-close:hover {
    color: #fff;
}

.cs-seasonal-desc {
    font-size: 12px;
    line-height: 1.5;
    color: var(--cs-muted);
    margin: 0;
}

.cs-seasonal-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cs-seasonal-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 9px 12px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
    color: var(--cs-white);
    font: 500 12px/1.3 var(--cs-font-body, system-ui, sans-serif);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.cs-seasonal-btn:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: var(--cs-line-gold);
    color: #fff;
    transform: translateX(2px);
}

.cs-seasonal-btn.active {
    background: var(--cs-gold);
    color: #0A0A0A;
    font-weight: 700;
    border-color: var(--cs-gold);
    box-shadow: 0 4px 16px -2px var(--cs-gold);
}

.cs-seasonal-btn .cs-opt-dates {
    font-size: 10px;
    opacity: 0.7;
    font-weight: 400;
}

.cs-seasonal-toggles {
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cs-seasonal-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    color: var(--cs-muted);
}

.cs-seasonal-switch {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 18px;
}

.cs-seasonal-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.cs-seasonal-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: rgba(255, 255, 255, 0.18);
    transition: 0.25s;
    border-radius: 34px;
}

.cs-seasonal-slider:before {
    position: absolute;
    content: "";
    height: 12px;
    width: 12px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.25s;
    border-radius: 50%;
}

.cs-seasonal-switch input:checked + .cs-seasonal-slider {
    background-color: var(--cs-gold);
}

.cs-seasonal-switch input:checked + .cs-seasonal-slider:before {
    transform: translateX(16px);
    background-color: #0A0A0A;
}

/* ==========================================================================
   7. FESTIVE PARTICLES & EFFECTS (SNOW, EMBERS, HEARTS)
   ========================================================================== */
.cs-seasonal-fx-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 2147482000;
    overflow: hidden;
    user-select: none;
}

/* Snowflakes */
.cs-snowflake {
    position: absolute;
    top: -15px;
    background: radial-gradient(circle, #ffffff 45%, rgba(210, 240, 255, 0.5) 100%);
    border-radius: 50%;
    filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.85));
    animation: cs-snowfall var(--duration, 10s) linear infinite;
    animation-delay: var(--delay, 0s);
    left: var(--left, 50%);
    width: var(--size, 5px);
    height: var(--size, 5px);
    opacity: var(--opacity, 0.7);
    will-change: transform;
}

@keyframes cs-snowfall {
    0% {
        transform: translate3d(0, 0, 0) rotate(0deg);
    }
    50% {
        transform: translate3d(var(--sway, 30px), 50vh, 0) rotate(180deg);
    }
    100% {
        transform: translate3d(calc(var(--sway, 30px) * -1), 105vh, 0) rotate(360deg);
    }
}

/* Halloween Floating Embers */
.cs-halloween-ember {
    position: absolute;
    bottom: -15px;
    background: radial-gradient(circle, #ffaa00 20%, rgba(255, 100, 0, 0.7) 65%, transparent 100%);
    border-radius: 50%;
    filter: drop-shadow(0 0 8px rgba(255, 122, 24, 0.95));
    animation: cs-ember-rise var(--duration, 9s) ease-in-out infinite;
    animation-delay: var(--delay, 0s);
    left: var(--left, 50%);
    width: var(--size, 6px);
    height: var(--size, 6px);
    opacity: var(--opacity, 0.8);
    will-change: transform;
}

@keyframes cs-ember-rise {
    0% {
        transform: translate3d(0, 0, 0) scale(0.6);
        opacity: 0;
    }
    15% {
        opacity: var(--opacity, 0.8);
    }
    85% {
        opacity: var(--opacity, 0.8);
    }
    100% {
        transform: translate3d(var(--sway, 25px), -105vh, 0) scale(1.3);
        opacity: 0;
    }
}

/* Valentine's Floating Hearts */
.cs-valentine-heart {
    position: absolute;
    bottom: -20px;
    color: #ff4d6d;
    font-size: var(--size, 14px);
    filter: drop-shadow(0 0 6px rgba(255, 77, 109, 0.8));
    animation: cs-heart-float var(--duration, 11s) ease-in-out infinite;
    animation-delay: var(--delay, 0s);
    left: var(--left, 50%);
    opacity: var(--opacity, 0.6);
    will-change: transform;
}

@keyframes cs-heart-float {
    0% {
        transform: translate3d(0, 0, 0) scale(0.7) rotate(0deg);
        opacity: 0;
    }
    20% {
        opacity: var(--opacity, 0.65);
    }
    80% {
        opacity: var(--opacity, 0.65);
    }
    100% {
        transform: translate3d(var(--sway, 35px), -105vh, 0) scale(1.15) rotate(25deg);
        opacity: 0;
    }
}

/* Accessibility: respect user preference for reduced motion */
@media (prefers-reduced-motion: reduce) {
    .cs-snowflake,
    .cs-halloween-ember,
    .cs-valentine-heart {
        animation: none !important;
        display: none !important;
    }
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    .cs-seasonal-pill {
        bottom: 16px;
        right: 16px;
        padding: 6px 12px;
        font-size: 11px;
    }
    .cs-seasonal-modal {
        bottom: 56px;
        right: 16px;
        width: 290px;
        padding: 16px;
    }
}