:root {
    --bg-dark: #121212;
    --card-bg: #1e1e1e;
    --accent-green: #00ff7f;
    --text-gray: #a0a0a0;
    --soft-red: #ef5350;
    --sidebar-width: 260px;
    --sidebar-collapsed: 80px;
    --bottom-nav-height: 70px;

    /* ZMIENNE DO SZTYWNYCH WYSOKOŚCI (Fix skakania) */
    --logo-height: 70px;
    --link-height: 50px;
    --profile-height: 70px;
}

body {
    background-color: var(--bg-dark);
    color: #e0e0e0;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    overflow-x: hidden;
    padding-bottom: 0;
}

/* --- BOOTSTRAP OVERRIDES --- */
.card { background-color: var(--card-bg) !important; border-color: rgba(255,255,255,0.05) !important; color: #e0e0e0; }
.table { --bs-table-bg: transparent; --bs-table-color: #e0e0e0; --bs-table-hover-bg: rgba(255,255,255,0.03); border-color: rgba(255,255,255,0.1); font-size: 0.9rem; }

/* Custom Premium Tooltips */
.tooltip {
    --bs-tooltip-bg: rgba(20, 20, 20, 0.98) !important;
    --bs-tooltip-color: #e0e0e0 !important;
    --bs-tooltip-opacity: 1 !important;
}
.tooltip-inner {
    background-color: var(--bs-tooltip-bg) !important;
    border: 1px solid rgba(0, 255, 127, 0.3) !important;
    border-radius: 8px !important;
    padding: 10px 14px !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.8) !important;
    font-size: 0.85rem !important;
    color: var(--bs-tooltip-color) !important;
    max-width: 250px !important;
}
.tooltip .tooltip-arrow::before { display: none !important; /* Hide defaults to avoid bright arrows */ }

/* Interactive Cards */
.card.card-hoverable {
    transition: all 0.25s ease-out !important;
    will-change: transform, box-shadow;
}
.card.card-hoverable:hover {
    transform: translateY(-5px) scale(1.03) !important;
    box-shadow: 0 12px 24px rgba(0, 255, 127, 0.15) !important;
    z-index: 10;
}

/* Footer Reveal Animation */
.footer-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}
.footer-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Tabela - Nagłówki */
.table thead th {
    background-color: #1a1a1a !important; color: #adb5bd !important;
    text-transform: uppercase; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.5px;
    padding: 15px 0; border-bottom: 2px solid rgba(255,255,255,0.1); vertical-align: middle;
}
.table tbody td { vertical-align: middle; padding: 12px 0; }

h1, h2, h3, h4, h5, h6 { color: #fff !important; }

/* Formularze */
.form-control, .form-select { background-color: #2c2c2c !important; border-color: #444 !important; color: #fff !important; }
.form-control:focus, .form-select:focus {
    background-color: #333 !important; border-color: var(--accent-green) !important;
    box-shadow: 0 0 0 0.25rem rgba(0, 255, 127, 0.25) !important;
}

/* --- UTILS --- */
.ls-1 { letter-spacing: 1px; }
.text-accent { color: var(--accent-green) !important; }
.cursor-pointer { cursor: pointer; }
.chart-container-wide { position: relative; width: 100%; height: 450px; }
.chart-container { position: relative; width: 100%; height: 350px; }

/* --- SIDEBAR STYLING --- */

/* 1. Linki (Ogólne) */
.nav-link {
    color: var(--text-gray); border-radius: 10px;
    /* FIX: Sztywna wysokość i Flexbox */
    height: var(--link-height);
    display: flex; align-items: center;
    padding: 0 15px; margin-bottom: 4px;
    transition: all 0.2s; white-space: nowrap;
}
.nav-link:hover { background-color: rgba(255,255,255,0.05); color: #fff; }
.nav-link.active { background-color: rgba(0, 255, 127, 0.1); color: var(--accent-green); font-weight: bold; }
.nav-link i {
    width: 30px; text-align: center; margin-right: 15px;
    font-size: 1.2rem; flex-shrink: 0; transition: margin 0.3s;
}

/* --- SIDEBAR (Desktop) --- */
@media (min-width: 768px) {
    .main-content {
        margin-left: var(--sidebar-collapsed);
        width: calc(100% - var(--sidebar-collapsed));
        padding-top: 2rem;
        transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        min-height: 100vh;
        display: flex; flex-direction: column;
    }
    .content-wrapper { width: 90%; max-width: 1600px; margin: 0 auto; padding-bottom: 2rem; flex: 1; }

    .sidebar-desktop {
        position: fixed; top: 0; left: 0; bottom: 0;
        width: var(--sidebar-collapsed);
        background-color: var(--card-bg);
        border-right: 1px solid rgba(255,255,255,0.05);
        padding: 10px; /* Mniejszy padding góra/dół */
        display: flex; flex-direction: column; z-index: 1000;
        transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        overflow: hidden; box-shadow: 5px 0 15px rgba(0,0,0,0.3);
        white-space: nowrap !important;
    }
    .sidebar-desktop:hover { width: var(--sidebar-width); align-items: flex-start; }

    /* --- FIX: ELEMENTY SZTYWNE W PIONIE (Żeby nie skakały) --- */

    /* Logo Container */
    .brand-logo {
        height: var(--logo-height);
        display: flex; align-items: center; width: 100%;
        margin-bottom: 10px; flex-shrink: 0;
        overflow: hidden;
    }

    /* Portfolio Button */
    .portfolio-wrapper {
        margin-bottom: 20px; width: 100%; flex-shrink: 0;
    }
    .portfolio-btn {
        height: 56px; /* Sztywna wysokość */
        display: flex; align-items: center; width: 100%;
        padding: 0 15px; overflow: hidden;
        justify-content: flex-start; /* Zawsze do lewej */
    }

    /* User Profile (Dół) */
    .user-profile-wrapper {
        margin-top: auto; padding-top: 15px;
        border-top: 1px solid rgba(255,255,255,0.05);
        width: 100%; flex-shrink: 0;
        height: var(--profile-height); /* Sztywne miejsce na dole */
        display: flex; align-items: center;
    }
    .user-profile {
        display: flex; align-items: center; width: 100%;
        text-decoration: none; color: white; overflow: hidden;
    }

    /* --- LOGIKA ZWIJANIA (COLLAPSED STATE) --- */

    /* 1. Ukrywanie tekstów (Opacity, nie display:none, żeby zachować flow) */
    .sidebar-desktop:not(:hover) .brand-text,
    .sidebar-desktop:not(:hover) .user-info,
    .sidebar-desktop:not(:hover) .link-text,
    .sidebar-desktop:not(:hover) .portfolio-text-wrapper {
        opacity: 0;
        transform: translateX(-10px);
        pointer-events: none;
        width: 0; /* To ważne */
        margin: 0; padding: 0;
    }

    /* 2. Centrujemy ikony, gdy zwinięte */
    .sidebar-desktop:not(:hover) .brand-logo { justify-content: center; padding: 0; }
    .sidebar-desktop:not(:hover) .nav-link { justify-content: center; padding: 0; }
    .sidebar-desktop:not(:hover) .portfolio-btn { justify-content: center; padding: 0; }
    .sidebar-desktop:not(:hover) .user-profile { justify-content: center; padding: 0; }

    /* 3. Reset marginesów ikon przy zwinięciu */
    .sidebar-desktop:not(:hover) .nav-link i,
    .sidebar-desktop:not(:hover) .portfolio-btn i,
    .sidebar-desktop:not(:hover) .brand-logo img,
    .sidebar-desktop:not(:hover) .user-profile div:first-child {
        margin-right: 0 !important;
    }

    /* Ukrywanie strzałek dropdown */
    .sidebar-desktop:not(:hover) .dropdown-toggle::after { display: none !important; }
}

/* --- MOBILE --- */
@media (max-width: 767px) {
    body { padding-bottom: calc(var(--bottom-nav-height) + 20px) !important; }
    .chart-container-wide { height: 300px; }
    .chart-container { height: 250px; }
    .content-wrapper { padding: 0 10px; width: 100%; }

    /* Kontener paska */
    .bottom-nav {
        position: fixed; bottom: 0; left: 0; right: 0;
        height: var(--bottom-nav-height);
        background-color: var(--card-bg);
        border-top: 1px solid rgba(255,255,255,0.05);
        display: flex; justify-content: space-around; align-items: center;
        z-index: 1000; box-shadow: 0 -5px 20px rgba(0,0,0,0.5);
    }

    /* STYLIZACJA LINKÓW */
    .bottom-link {
        color: var(--text-gray);
        text-decoration: none;
        display: flex;
        flex-direction: column; /* Kluczowe: Ikonka nad tekstem */
        align-items: center;    /* Środek poziomo */
        justify-content: center;/* Środek pionowo */
        font-size: 0.7rem;
        flex: 1;
        height: 100%;
        transition: color 0.2s, background-color 0.2s;
    }

    .bottom-link i {
        font-size: 1.4rem;
        margin-bottom: 4px;
        color: inherit;
    }

    .bottom-link.active {
        color: var(--accent-green);
    }

    .bottom-link:hover {
        color: #fff;
        background-color: rgba(255,255,255,0.05);
    }
    /* --- FIX TABELEK NA MOBILE (Scroll poziomy) --- */

    /* 1. Wymuszamy przewijanie kontenera */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch; /* Płynne przewijanie na iOS */
        margin-bottom: 60px; /* Miejsce na scrollbar nad paskiem nawigacji */
    }

    /* 2. Blokujemy zawijanie tekstu w komórkach */
    .table th, .table td {
        white-space: nowrap; /* KLUCZOWE: To naprawia "zgniatanie" */
        padding: 10px 8px;   /* Trochę ciaśniej niż na desktopie */
        font-size: 0.8rem;   /* Mniejsza czcionka dla danych */
    }

    /* 3. Powiększamy pierwszą kolumnę (Nazwa aktywa), żeby była czytelna */
    .table td:first-child {
        min-width: 140px;
        font-weight: 600;
    }

    /* Ukrywamy scrollbar systemowy (opcjonalnie, dla estetyki), ale zostawiamy funkcję */
    .table-responsive::-webkit-scrollbar {
        height: 4px;
    }
    .table-responsive::-webkit-scrollbar-thumb {
        background: rgba(255,255,255,0.2);
        border-radius: 2px;
    }
}

/* Inne */
/* Skeleton Loader z Shimmer */
.skeleton {
    background: #2a2a2a;
    background-image: linear-gradient(90deg, #2a2a2a 0px, #3a3a3a 40px, #2a2a2a 80px);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: var(--radius);
}
@keyframes shimmer { 0% { background-position: -200px 0; } 100% { background-position: 200px 0; } }

#page-loader {
    display: none; /* Ukryty szkielet inicjalnie */
}

/* Fix Green Filters */
.btn-outline-secondary.active, .btn-check:checked + .btn-outline-secondary {
    background-color: var(--accent-green) !important;
    color: #121212 !important; border-color: var(--accent-green) !important; font-weight: 700;
}
.nav-pills .nav-link.active { background-color: var(--accent-green) !important; color: #121212 !important; font-weight: bold; }