@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ==========================================================================
   1. СИСТЕМА ЗМІННИХ ТА АДАПТАЦІЯ ДО TELEGRAM MINI APP
   ========================================================================== */
:root {
    /* Нативні змінні Telegram із надійними фолбеками */
    --tg-theme-bg-color: #f8fafc;
    --tg-theme-text-color: #0f172a;
    --tg-theme-hint-color: #64748b;
    --tg-theme-link-color: #6366f1;
    --tg-theme-button-color: #4f46e5;
    --tg-theme-button-text-color: #ffffff;
    --tg-theme-secondary-bg-color: #ffffff;

    /* Преміальна колірна палітра */
    --primary-indigo: #6366f1;
    --primary-indigo-dark: #4f46e5;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    --gradient-ebm-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);

    /* Скло та відблиски (Light Mode) */
    --glass-bg-light: rgba(255, 255, 255, 0.72);
    --glass-border-light: rgba(255, 255, 255, 0.8);
    --glass-shadow-light: 0 16px 36px -4px rgba(99, 102, 241, 0.09), 0 4px 12px rgba(0, 0, 0, 0.03);
    --glass-inner-glow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.9);

    /* Анімовані плями фону (Light Mode) */
    --blob-1: rgba(99, 102, 241, 0.22);
    --blob-2: rgba(168, 85, 247, 0.18);
    --blob-3: rgba(56, 189, 248, 0.22);

    /* Радиуси та таймінги */
    --radius-2xl: 24px;
    --radius-xl: 20px;
    --radius-lg: 16px;
    --radius-md: 12px;
    --transition-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1);
}

.dark {
    --tg-theme-bg-color: #060911;
    --tg-theme-text-color: #f8fafc;
    --tg-theme-hint-color: #94a3b8;
    --tg-theme-secondary-bg-color: #101726;

    /* Скло та відблиски (Dark Mode) */
    --glass-bg-dark: rgba(16, 23, 38, 0.72);
    --glass-border-dark: rgba(255, 255, 255, 0.12);
    --glass-shadow-dark: 0 20px 48px -8px rgba(0, 0, 0, 0.65);
    --glass-inner-glow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.15);

    /* Анімовані плями фону (Dark Mode) */
    --blob-1: rgba(99, 102, 241, 0.32);
    --blob-2: rgba(168, 85, 247, 0.24);
    --blob-3: rgba(14, 165, 233, 0.28);
}

/* ==========================================================================
   2. ГЛОБАЛЬНІ СТИЛІ БОДІ ТА В'ЮПОРТА
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--tg-theme-bg-color);
    color: var(--tg-theme-text-color);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    -webkit-user-select: none;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;

    /* Safe Area для iPhone (Dynamic Island / Notch) */
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

/* ==========================================================================
   3. АБСТРАКТНИЙ АНІМОВАНИЙ ФОН (AMBIENT GLOW)
   ========================================================================== */
body::before,
body::after {
    content: "";
    position: fixed;
    border-radius: 50%;
    filter: blur(90px);
    -webkit-filter: blur(90px);
    z-index: -1;
    pointer-events: none;
    will-change: transform;
    transform: translateZ(0);
}

body::before {
    width: 360px;
    height: 360px;
    top: -90px;
    left: -70px;
    background: radial-gradient(circle, var(--blob-1) 0%, var(--blob-2) 100%);
    animation: floatBlob1 20s ease-in-out infinite alternate;
}

body::after {
    width: 400px;
    height: 400px;
    bottom: -110px;
    right: -90px;
    background: radial-gradient(circle, var(--blob-3) 0%, var(--blob-1) 100%);
    animation: floatBlob2 24s ease-in-out infinite alternate;
}

/* ==========================================================================
   4. GLASSMORPHISM 2.0 (ЕФЕКТ ОБ'ЄМНОГО СКЛА)
   ========================================================================== */
.glass-card {
    background: var(--glass-bg-light);
    backdrop-filter: blur(24px) saturate(190%);
    -webkit-backdrop-filter: blur(24px) saturate(190%);
    border: 1px solid var(--glass-border-light);
    box-shadow: var(--glass-shadow-light), var(--glass-inner-glow);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    transition: transform 0.25s var(--transition-bounce), 
                box-shadow 0.25s var(--transition-smooth), 
                border-color 0.25s var(--transition-smooth);
}

.dark .glass-card {
    background: var(--glass-bg-dark);
    border: 1px solid var(--glass-border-dark);
    box-shadow: var(--glass-shadow-dark), var(--glass-inner-glow);
}

/* Верхній світловий відблиск */
.glass-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.6) 50%, transparent 100%);
    pointer-events: none;
}

/* Навігаційна панель */
.glass-nav {
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(28px) saturate(200%);
    -webkit-backdrop-filter: blur(28px) saturate(200%);
    border-top: 1px solid rgba(226, 232, 240, 0.9);
}

.dark .glass-nav {
    background: rgba(6, 9, 17, 0.82);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   5. ІКОНКИ-БЕДЖІ, ТАГИ ТА СТАТУСИ
   ========================================================================== */
.icon-badge {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    background: rgba(99, 102, 241, 0.12);
    color: var(--primary-indigo);
    border: 1px solid rgba(99, 102, 241, 0.2);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
    flex-shrink: 0;
    transition: transform 0.2s var(--transition-bounce);
}

.dark .icon-badge {
    background: rgba(99, 102, 241, 0.22);
    border-color: rgba(99, 102, 241, 0.35);
}

/* Пульсуючі індикатори стану */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.status-badge.ebm {
    background: rgba(16, 185, 129, 0.12);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.status-badge.warning {
    background: rgba(245, 158, 11, 0.12);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.25);
}

/* ==========================================================================
   6. ІНТЕРАКТИВНІСТЬ, КНОПКИ ТА КЛІКИ
   ========================================================================== */
button, summary, .interactive-card, a {
    transition: transform 0.18s var(--transition-bounce), 
                opacity 0.18s var(--transition-smooth), 
                box-shadow 0.18s var(--transition-smooth),
                background-color 0.18s var(--transition-smooth);
}

button:active, summary:active, .interactive-card:active {
    transform: scale(0.96) translateY(1px);
    opacity: 0.9;
}

.interactive-card:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 18px 40px -4px rgba(99, 102, 241, 0.18);
}

/* Прихований скролбар */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* ==========================================================================
   7. АКОРДЕОНИ ТА ІНПУТИ (КАЛЬКУЛЯТОРИ)
   ========================================================================== */
details summary::-webkit-details-marker,
details summary::marker {
    display: none;
    content: "";
}

details summary {
    list-style: none;
    cursor: pointer;
    outline: none;
}

details[open] summary {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.dark details[open] summary {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

details[open] > div {
    animation: slideDown 0.3s var(--transition-bounce);
}

/* Інпути з ефектом фокусу */
input, select, textarea {
    font-family: inherit;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(203, 213, 225, 0.8);
    transition: all 0.2s var(--transition-smooth);
}

.dark input, .dark select, .dark textarea {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary-indigo) !important;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.25);
    background: #ffffff;
}

.dark input:focus, .dark select:focus {
    background: rgba(15, 23, 42, 0.95);
}

/* ==========================================================================
   8. АНІМАЦІЇ РУХУ ФОНУ
   ========================================================================== */
@keyframes floatBlob1 {
    0% { transform: translate(0px, 0px) scale(1); }
    50% { transform: translate(65px, 85px) scale(1.18); }
    100% { transform: translate(-35px, 125px) scale(0.92); }
}

@keyframes floatBlob2 {
    0% { transform: translate(0px, 0px) scale(1); }
    50% { transform: translate(-75px, -65px) scale(1.22); }
    100% { transform: translate(45px, -115px) scale(0.88); }
}

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