/*
=================================
CHRISTMAS THEME 🎄 (ULTIMATE EDITION v3 - REFACTORED)
=================================
*/

/* 1) Font & Základní paleta */
@import url('https://fonts.googleapis.com/css2?family=Lobster&display=swap');

.christmas-mode {
    /* --- Vánoční paleta --- */
    --x-red: #d42426;
    --x-red-dark: #b71c1c;
    --x-green: #165b33;
    --x-green-light: #2e8b57;
    --x-gold: #f8b229;
    --x-gold-glow: #ffcf40;
    --x-snow: #ffffff;
    --x-ice: #e3f2fd;
    --x-ice-strong: #90caf9;

    --x-text: #1a2e3b;
    --x-text-muted: #546e7a;

    --x-bg-body: #eef2f3;
    --x-bg-card: rgba(255, 255, 255, 0.85);
    /* Více průhlednosti pro efekt */
    --x-border: #bbdefb;

    /* Glow helpers */
    --x-glow-red: 0 0 10px rgba(212, 36, 38, 0.5);
    --x-glow-gold: 0 0 15px rgba(248, 178, 41, 0.6);
    --x-shadow-card: 0 8px 32px rgba(31, 38, 135, 0.1);
    --x-ice-sheen: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.5) 50%, rgba(255, 255, 255, 0.1) 100%);

    /* --- Přemapování na globální proměnné aplikace --- */
    --c-primary: var(--x-red);
    --c-secondary: var(--x-text-muted);
    --c-text: var(--x-text);
    --c-text-muted: var(--x-text-muted);
    --c-bg-body: var(--x-bg-body);
    --c-bg-container: var(--x-bg-card);
    --c-bg-subtle: #e1f5fe;
    --c-border: var(--x-border);
    --c-border-light: #e3f2fd;

    --c-success: var(--x-green);
    --c-danger: var(--x-red);
    --c-warning: var(--x-gold);
    --c-info: #29b6f6;

    /* Bootstrap Overrides */
    --bs-primary: var(--x-red);
    --bs-primary-rgb: 212, 36, 38;
    --bs-body-bg: var(--x-bg-body);
    --bs-body-color: var(--x-text);
    --bs-border-color: var(--x-border);
    --bs-primary-bg-subtle: rgba(212, 36, 38, 0.08);

    /* Sidebar */
    --sidebar-bg: rgba(255, 255, 255, 0.95);
    --sidebar-link-color: #455a64;
    --sidebar-link-active-color: var(--x-red);
    --sidebar-link-active-bg: #ffebee;
}

/* 2) Layout a Pozadí */
.christmas-mode body,
.christmas-mode .main-content,
.christmas-mode .ticket-view-container {
    background-color: var(--x-bg-body);
    /* Jemný gradient, který vypadá jako zamrzlé okno */
    background-image:
        radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.8) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.6) 0%, transparent 20%);
    background-attachment: fixed;
    background-size: 100% 100%;
}

/* JS SNĚŽENÍ (Dynamické) - Ponecháno */
.snow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.snowflake {
    position: absolute;
    top: -10px;
    color: #fff;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
    animation-name: fall, sway;
    animation-timing-function: linear, ease-in-out;
    animation-iteration-count: infinite;
    user-select: none;
    will-change: transform, top;
}

@keyframes fall {
    0% {
        top: -10%;
    }

    100% {
        top: 100vh;
    }
}

@keyframes sway {

    0%,
    100% {
        transform: translateX(0);
    }

    50% {
        transform: translateX(20px);
    }
}

/* Závěje v patičce */
.christmas-mode body::after {
    content: '';
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    /* Zvětšeno */
    background:
        radial-gradient(circle at 15% 100%, #fff 50px, transparent 51%),
        radial-gradient(circle at 40% 100%, #fff 60px, transparent 61%),
        radial-gradient(circle at 65% 100%, #fff 45px, transparent 46%),
        radial-gradient(circle at 85% 100%, #fff 55px, transparent 56%);
    background-repeat: repeat-x;
    z-index: 1;
    pointer-events: none;
    filter: drop-shadow(0 -5px 15px rgba(255, 255, 255, 0.8));
}

/* 3) SANTA CLAUS */
.santa-flyer {
    position: fixed;
    z-index: 9998;
    pointer-events: none;
    opacity: 0.15;
    width: 400px;
    max-width: 40vw;
    height: auto;
    will-change: transform, left;
    filter: drop-shadow(0 10px 10px rgba(0, 0, 0, 0.1));
}

/* 4) GIRLANDA SVĚTÝLEK */
.christmas-mode .top-header,
.christmas-mode .sidebar-header {
    background-color: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--x-border);
    position: relative;
}

.christmas-mode .top-header::after {
    content: "";
    position: absolute;
    top: -4px;
    left: 0;
    right: 0;
    height: 12px;
    background:
        radial-gradient(circle at 50% 2px, var(--x-red) 3px, transparent 4px),
        radial-gradient(circle at 50% 2px, var(--x-green) 3px, transparent 4px),
        radial-gradient(circle at 50% 2px, var(--x-gold) 3px, transparent 4px),
        radial-gradient(circle at 50% 2px, #29b6f6 3px, transparent 4px);
    background-size: 80px 15px;
    background-position: 0 0, 20px 0, 40px 0, 60px 0;
    background-repeat: repeat-x;
    animation: lights-twinkle 2s infinite alternate;
    z-index: 1030;
    filter: drop-shadow(0 2px 4px rgba(255, 255, 255, 0.5));
}

/* 5) TYPOGRAFIE */
.christmas-mode h1,
.christmas-mode h2,
.christmas-mode h3,
.christmas-mode h4,
.christmas-mode .sidebar-brand,
.christmas-mode #chatbotHeader span {
    font-family: 'Lobster',
        cursive;
    font-weight: 700;
    color: var(--x-red);
    letter-spacing: 0.5px;
    text-shadow: 1px 1px 0px #fff, 2px 2px 4px rgba(0, 0, 0, 0.1);
}

/* 6) KARTY S "FROST GLASS" EFEKTEM (Změna oproti v2) */
.christmas-mode .card,
.christmas-mode .grid-stack-item-content,
.christmas-mode .modal-content,
.christmas-mode .kanban-card,
.christmas-mode .ticket-view-container,
.christmas-mode .comment-card {
    background-color: var(--x-bg-card) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    /* Dvojitý border trik pro "ledový" okraj */
    border: 1px solid rgba(255, 255, 255, 0.7) !important;
    box-shadow:
        0 8px 32px 0 rgba(31, 38, 135, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.5);
    /* Vnitřní odlesk */
    border-radius: 16px;
    position: relative;
    overflow: hidden;
}

/* "Ice Sheen" animace na hover (Místo tání) */
.christmas-mode .grid-stack-item-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right,
            rgba(255, 255, 255, 0) 0%,
            rgba(255, 255, 255, 0.4) 50%,
            rgba(255, 255, 255, 0) 100%);
    transform: skewX(-25deg);
    transition: left 0.5s;
    pointer-events: none;
    z-index: 2;
}

.christmas-mode .grid-stack-item-content:hover::before {
    left: 200%;
    transition: left 0.7s ease-in-out;
}

/* Jemná námraza v rozích (statická, performantní) */
.christmas-mode .card::after,
.christmas-mode .grid-stack-item-content::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.9), transparent 80px),
        radial-gradient(circle at 100% 0, rgba(255, 255, 255, 0.9), transparent 80px);
    opacity: 0.5;
    z-index: 1;
}

/* 7) CUKROVÁ HŮLKA (CANDY CANE) - Vylepšeno */
/* Scrollbary */
.christmas-mode *::-webkit-scrollbar {
    height: 10px;
    width: 10px;
}

.christmas-mode *::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.christmas-mode *::-webkit-scrollbar-thumb {
    background: repeating-linear-gradient(45deg,
            #d42426,
            #d42426 10px,
            #ffffff 10px,
            #ffffff 20px);
    border-radius: 10px;
    border: 2px solid #fff;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

.christmas-mode *::-webkit-scrollbar-thumb:hover {
    background: repeating-linear-gradient(45deg,
            #b71c1c,
            #b71c1c 10px,
            #e0e0e0 10px,
            #e0e0e0 20px);
}

/* Tlačítka - Candy Cane s lepším stínováním */
.christmas-mode .btn-primary,
.christmas-mode #bug-report-fab,
.christmas-mode #chatbotToggleBtn {
    background: repeating-linear-gradient(45deg,
            var(--x-red),
            var(--x-red) 10px,
            #ff4d4f 10px,
            #ff4d4f 20px) !important;
    border: 2px solid #fff !important;
    box-shadow: 0 4px 6px rgba(212, 36, 38, 0.2), inset 0 2px 5px rgba(255, 255, 255, 0.3);
    color: #fff !important;
    font-weight: bold;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.christmas-mode .btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(212, 36, 38, 0.4);
}

/* 8) FORMULÁŘE A INPUTY */
.christmas-mode .form-control,
.christmas-mode .form-select,
.christmas-mode .ticket-input,
.christmas-mode .ts-control {
    background-color: rgba(255, 255, 255, 0.9) !important;
    border: 1px solid var(--x-border) !important;
    color: var(--x-text) !important;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

.christmas-mode .form-control:focus,
.christmas-mode .ts-control.focus {
    border-color: var(--x-ice-strong) !important;
    box-shadow: 0 0 0 4px rgba(144, 202, 249, 0.25), inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* 9) SIDEBAR */
.christmas-mode .sidebar-link.active {
    background-color: rgba(22, 91, 51, 0.08);
    color: var(--x-green);
    border-right: 4px solid var(--x-green);
    font-weight: 600;
}

.christmas-mode .sidebar-link.active i {
    color: var(--x-red);
    filter: drop-shadow(0 0 2px rgba(212, 36, 38, 0.3));
    animation: jingle 2s ease-in-out infinite;
    /* Animace pouze na aktivní ikoně */
}

/* 10) SPECIFICKÉ KOMPONENTY */

.christmas-mode .kanban-header {
    border-top: 5px solid var(--x-red);
    background-color: #fff !important;
    border-bottom: 2px solid #fff;
    border-radius: 8px 8px 0 0;
}

.christmas-mode .kanban-column:nth-child(even) .kanban-header {
    border-top-color: var(--x-green);
}

.christmas-mode .ticket-table tbody tr:hover {
    background-color: rgba(227, 242, 253, 0.5);
    backdrop-filter: blur(2px);
}

/* Badge stylizace jako vánoční ozdoby */
.christmas-mode .status-badge {
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.christmas-mode .badge.bg-danger {
    background: radial-gradient(circle at 30% 30%, #ff6b6b, var(--x-red)) !important;
    box-shadow: 0 2px 5px rgba(212, 36, 38, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.christmas-mode .priority-urgent .badge-priority {
    animation: glow-pulse 2s infinite ease-in-out;
}

.christmas-mode #chatbotHeader {
    background: linear-gradient(135deg, var(--x-red), #b71c1c);
    border-bottom: 4px solid #fff;
    /* Sníh na hlavičce */
}

.christmas-mode .chat-message.user .chat-bubble {
    background-color: var(--x-green-light);
    color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.christmas-mode .navbar-user-avatar {
    border: 2px solid var(--x-green);
    box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--x-red);
}

/* 11) UTILITY CLASSES */
.christmas-mode .u-hohoho {
    background: linear-gradient(to right, var(--x-red), var(--x-green), var(--x-gold));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: bold;
    animation: shine 4s linear infinite;
    background-size: 200% auto;
}

/* 12) ANIMACE */

@keyframes lights-twinkle {
    0% {
        opacity: 0.6;
        filter: brightness(1);
    }

    50% {
        opacity: 1;
        filter: brightness(1.2);
    }

    100% {
        opacity: 0.6;
        filter: brightness(1);
    }
}

@keyframes glow-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(212, 36, 38, 0.4);
    }

    70% {
        box-shadow: 0 0 0 6px rgba(212, 36, 38, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(212, 36, 38, 0);
    }
}

@keyframes jingle {

    0%,
    100% {
        transform: rotate(0);
    }

    10% {
        transform: rotate(10deg);
    }

    20% {
        transform: rotate(-10deg);
    }

    30% {
        transform: rotate(6deg);
    }

    40% {
        transform: rotate(-6deg);
    }

    50% {
        transform: rotate(0);
    }
}

@keyframes shine {
    to {
        background-position: 200% center;
    }
}

/* 13) PERFORMANCE FIX PRO MOBILY */
@media (max-width: 992px) {
    .christmas-mode body::after {
        /* Závěje zjednodušit nebo skrýt */
        height: 30px;
    }

    .christmas-mode .grid-stack-item-content::before {
        /* Vypnout sheen efekt na mobilu pro výkon */
        display: none;
    }

    .christmas-mode .card,
    .christmas-mode .grid-stack-item-content {
        backdrop-filter: none;
        /* Náročné na GPU */
        background-color: rgba(255, 255, 255, 0.95) !important;
    }
}