@import url('https://fonts.googleapis.com/css?family=Rubik:400,700&display=swap');
@property --rotate { syntax: "<angle>"; initial-value: 132deg; inherits: false; }

:root {
    --card-bg: #191c29;
    --hub-bg: #0f111a;
    --primary-blue: #5ddcff;
    --primary-red: #d32f2f;
    --e: cubic-bezier(0.19, 1, 0.22, 1);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
    min-height: 100vh; background: var(--hub-bg); margin: 0;
    font-family: 'Rubik', sans-serif; color: white;
    display: flex; flex-direction: column; align-items: center;
    overflow-x: hidden; perspective: 1500px;
}

/* --- ШАПКА --- */
.hub-header { width: 100%; display: flex; flex-direction: column; align-items: center; }
.header-top-line {
    width: 100%; background: rgba(20, 22, 30, 0.95);
    backdrop-filter: blur(10px); border-bottom: 1px solid rgba(211, 47, 47, 0.4);
    padding: 12px 15px; text-align: center; position: sticky; top: 0; z-index: 2000;
}
.institution-name { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; color: #ff8a80; letter-spacing: 1px; }
.header-main-content { padding: 3rem 1.5rem 2rem; max-width: 900px; text-align: center; }
.header-logos { display: flex; align-items: center; justify-content: center; gap: 25px; margin-bottom: 1.5rem; }
.logo-circle { background: rgba(255, 255, 255, 0.03); padding: 10px; border-radius: 50%; border: 1px solid rgba(93, 220, 255, 0.2); }
.main-logo { height: 60px; width: auto; }
.logo-divider { width: 1px; height: 40px; background: rgba(255, 255, 255, 0.1); }
.hub-title { font-size: 2.4rem; font-weight: 900; margin: 0; text-transform: uppercase; background: linear-gradient(135deg, #fff 30%, var(--primary-blue) 100%); background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.title-underline { width: 50px; height: 4px; background: var(--primary-red); margin: 10px auto 15px; }
.hub-description { color: #cfd8dc; font-size: 0.95rem; }

/* --- СІТКА (КВАДРАТИ) --- */
.page-content {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px; padding: 32px 20px; max-width: 1250px; width: 100%;
}

.card-node {
    position: relative;
    aspect-ratio: 1 / 1;
    cursor: pointer;
}

.magic-card {
    position: relative; width: 100%; height: 100%;
    transition: transform 0.8s var(--e);
    transform-style: preserve-3d;
}

.card-node.is-active .magic-card { transform: rotateY(180deg); }

/* --- ЕФЕКТ ПЕРЕЛИВАННЯ (ЗГАСАЄ ПРИ HOVER) --- */
.magic-card::before {
    content: ""; position: absolute; z-index: -1; inset: -2.5%;
    border-radius: 26px;
    background-image: linear-gradient(var(--rotate), var(--grad-1), var(--grad-2) 43%, var(--grad-3));
    opacity: 1;
    animation: spin 4s linear infinite;
    transition: opacity 0.5s ease;
}

.card-node:hover .magic-card::before {
    opacity: 0.1;
    animation-play-state: paused;
}

@keyframes spin { 0% { --rotate: 0deg; } 100% { --rotate: 360deg; } }

/* --- СТОРОНИ ТА ЦЕНТРУВАННЯ --- */
.card-face {
    position: absolute; inset: 0; backface-visibility: hidden;
    border-radius: 20px; background: var(--card-bg);
    padding: 2.5rem 1.5rem; 
    display: flex; flex-direction: column; 
    align-items: center; justify-content: center; /* ЦЕНТРУВАННЯ ПО ОБОХ ОСЯХ */
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05); box-shadow: 0 15px 35px rgba(0,0,0,0.5);
    overflow: hidden;
}

.card-front { z-index: 2; transform: rotateY(0deg); }
.card-back {
    z-index: 1; transform: rotateY(180deg);
    background: linear-gradient(145deg, #1c1f2b 0%, #08090d 100%);
    justify-content: flex-start;
    overflow-y: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.card-face::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}

/* --- ІДЕАЛЬНО КРУГЛЕ ЛОГО --- */
.card-app-chevron {
    width: 150px; height: 150px;
    min-width: 150px; min-height: 150px;
    margin-bottom: 25px;
    background: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden; 
    border: 4px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    flex-shrink: 0; /* ЗАХИСТ ВІД ОВАЛЬНОСТІ */
}
.card-app-chevron img {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center;
}

.title { font-size: 1.8rem; margin: 0; font-weight: 700; color: #fff; }
.short-info { color: var(--theme-color); font-weight: 700; font-size: 0.9rem; text-transform: uppercase; margin-top: 8px; }

/* КНОПКИ */
.btn-details, .btn-open {
    width: 90%; padding: 14px;
    border: none; border-radius: 12px;
    font-weight: 800; text-transform: uppercase; letter-spacing: 1px;
    cursor: pointer; transition: 0.3s;
    margin-top: 25px;
}

.btn-details {
    background: rgba(255, 255, 255, 0.05);
    color: #fff; border: 1px solid rgba(255, 255, 255, 0.1);
}
.card-node:hover .btn-details { background: var(--theme-color); color: #000; border-color: var(--theme-color); box-shadow: 0 0 15px var(--theme-color); }

.btn-open { background: var(--theme-color); color: #000; }

/* ЗВОРОТНЯ СТОРОНА (СПИСКИ ТА АВТОРИ) */
.back-title { font-size: 1.15rem; color: var(--theme-color); margin-bottom: 12px; text-transform: uppercase; font-weight: 700; }
.features-list { list-style: none; padding: 0; margin: 0 0 15px 0; width: 100%; }
.features-list li { font-size: 0.85rem; color: #94a3b8; margin-bottom: 6px; padding-left: 18px; position: relative; line-height: 1.3; text-align: left; }
.features-list li::before { content: "•"; color: var(--theme-color); position: absolute; left: 0; }

.dev-container { width: 100%; padding-top: 15px; border-top: 1px solid rgba(255, 255, 255, 0.05); text-align: left; }
.dev-role { font-size: 0.6rem; color: #64748b; text-transform: uppercase; margin-top: 4px; }
.dev-name { font-size: 0.75rem; color: #fff; font-weight: 600; margin-bottom: 2px; }

/* СТАТИСТИКА */
.hub-stats-badge { position: absolute; top: 15px; font-size: 0.55rem; color: rgba(255,255,255,0.3); text-transform: uppercase; }

/* ТЕМИ */
.card-flow { --theme-color: #5ddcff; --grad-1: #5ddcff; --grad-2: #3c67e3; --grad-3: #4e00c2; }
.card-rhythmo { --theme-color: #ff5252; --grad-1: #ff5252; --grad-2: #d32f2f; --grad-3: #7f0000; }
.card-scales { --theme-color: #00BFA5; --grad-1: #00BFA5; --grad-2: #00897B; --grad-3: #004D40; }
.card-pedikit { --theme-color: #a78bfa; --grad-1: #a78bfa; --grad-2: #7c3aed; --grad-3: #4c1d95; }
.card-ambulight { --theme-color: #d4af37; --grad-1: #d4af37; --grad-2: #8b6b23; --grad-3: #4a3c1a; }

.hub-footer { padding: 3rem; color: #455a64; font-size: 0.75rem; text-align: center; }

@media (max-width: 900px) {
    .page-content {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
        padding: 24px 14px;
    }

    .header-main-content {
        padding: 2.2rem 1rem 1.2rem;
    }

    .hub-title {
        font-size: 2rem;
    }
}

@media (max-width: 600px) {
    body {
        perspective: none;
    }

    .page-content {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 18px 12px 28px;
        max-width: 460px;
    }

    .card-node {
        aspect-ratio: auto;
        min-height: 440px;
        margin: 20px 0;
    }

    .card-face {
        padding: 2rem 1.1rem;
    }

    .card-app-chevron {
        width: 102px;
        height: 102px;
        min-width: 102px;
        min-height: 102px;
        margin-top: 36px;
    }

    .title {
        font-size: 1.2rem;
    }

    .short-info {
        font-size: 0.72rem;
    }

    .btn-details,
    .btn-open {
        width: 100%;
    }

    .hub-footer {
        padding: 2rem 1rem;
    }
}

/* --- БЕЙДЖ СТАТИСТИКИ (ЛІЧИЛЬНИК) --- */
.hub-stats-badge {
    position: absolute;
    top: 20px;               /* Збільшив відступ від верхнього краю */
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(8px); /* Ефект матового скла */
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    padding: 4px 12px;       /* Більше простору всередині */
    border-radius: 20px;
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 5;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

/* Колір самих цифр */
#stat-flow, #stat-rhythmo, #stat-scales, #stat-pedikit, #stat-ambulight {
    color: var(--theme-color);
    margin-left: 5px;
    font-weight: 800;
    text-shadow: 0 0 8px rgba(0, 0, 0, 0.5);
}

/* При наведенні на картку робимо лічильник яскравішим */
.card-node:hover .hub-stats-badge {
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.9);
    border-color: var(--theme-color);
}

/* Коригування відступу логотипа, щоб він не тиснув на лічильник */
.card-app-chevron {
    margin-top: 40px;        /* Додав відступ зверху для лого */
    margin-bottom: 20px;
}

/* МОДАЛКА ДОСТУПУ */
.access-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    z-index: 3000;
}

.access-modal.is-visible {
    opacity: 1;
    visibility: visible;
}

.access-modal-card {
    width: min(420px, 100%);
    background: linear-gradient(155deg, #181d2a 0%, #0c1018 100%);
    border: 1px solid rgba(93, 220, 255, 0.35);
    border-radius: 18px;
    padding: 22px;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.55);
}

.access-modal-card h2 {
    margin: 0 0 8px;
    font-size: 1.35rem;
}

.access-modal-text {
    margin: 0 0 14px;
    color: #b8c7d5;
    font-size: 0.92rem;
}

.access-label {
    display: block;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #8da5be;
    margin-bottom: 8px;
}

.access-input {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
    padding: 12px 14px;
    font-size: 1rem;
    outline: none;
}

.access-input:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(93, 220, 255, 0.18);
}

.access-error {
    min-height: 20px;
    margin: 8px 0 0;
    color: #ff8a80;
    font-size: 0.82rem;
}

.access-actions {
    margin-top: 12px;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.access-btn {
    border: none;
    border-radius: 10px;
    padding: 10px 14px;
    font-weight: 700;
    cursor: pointer;
}

.access-btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.access-btn-primary {
    background: var(--primary-blue);
    color: #031018;
}

@media (max-width: 420px) {
    .access-modal-card {
        padding: 18px 14px;
    }

    .access-actions {
        justify-content: stretch;
    }

    .access-btn {
        flex: 1;
    }
}