/* =========================================
   Company: Seal and Lube, spol. s r.o.
   Author: Ing. Viliam Schneider
   File: assets/css/manual/manual_css.css
========================================= */

:root {
    --bg-dark: #0f172a;
    --sidebar-bg: #1e293b;
    --sidebar-hover: #334155;
    --accent: #38bdf8;
    --accent-hover: #0ea5e9;
    --text-main: #334155;
    --text-heading: #0f172a;
    --border-color: #e2e8f0;
    --sidebar-width: 300px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-main);
    background-color: #f8fafc;
    line-height: 1.6;
}

/* --- ROZLOŽENIE (DESKTOP) --- */
.manual-layout {
    display: flex;
    min-height: 100vh;
}

/* --- BOČNÝ PANEL (SIDEBAR) --- */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    color: #f8fafc;
    flex-shrink: 0;
    height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    border-right: 1px solid #334155;
    z-index: 1000;
}

.sidebar-header {
    padding: 20px;
    background-color: #0f172a;
    border-bottom: 1px solid #334155;
}

.back-home-link {
    display: inline-block;
    color: var(--accent);
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
    margin-bottom: 10px;
    transition: color 0.2s;
}

.back-home-link:hover {
    color: #fff;
}

.sidebar-header h2 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 2px;
}

.manual-badge {
    font-size: 12px;
    color: #94a3b8;
}

/* --- NAVIGAČNÉ ODKAZY --- */
.nav-links {
    padding: 15px 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: block;
    color: #cbd5e1;
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s;
}

.nav-item:hover {
    background-color: var(--sidebar-hover);
    color: #fff;
}

.nav-item.active {
    background-color: #0284c7;
    color: #fff;
    font-weight: bold;
}

/* Podkapitoly */
.sub-nav {
    margin-left: 15px;
    padding-left: 10px;
    border-left: 2px solid #334155;
    margin-top: 4px;
    margin-bottom: 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sub-item {
    display: block;
    color: #94a3b8;
    text-decoration: none;
    padding: 6px 8px;
    border-radius: 4px;
    font-size: 13px;
    transition: color 0.2s;
}

.sub-item:hover {
    color: var(--accent);
}

/* --- OBSAHOVÁ ČASŤ (MAIN CONTENT) --- */
.main-content {
    flex: 1;
    min-width: 0;
    padding: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.content-wrapper {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

/* Typografia manuálu */
.content-wrapper h1 {
    font-size: 28px;
    color: var(--text-heading);
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.content-wrapper h2 {
    font-size: 20px;
    color: var(--text-heading);
    margin-top: 30px;
    margin-bottom: 12px;
}

.content-wrapper h3 {
    font-size: 16px;
    color: #1e293b;
    margin-top: 20px;
    margin-bottom: 8px;
}

.content-wrapper p {
    margin-bottom: 16px;
}

.content-wrapper ol, .content-wrapper ul {
    margin-bottom: 16px;
    padding-left: 25px;
}

.content-wrapper li {
    margin-bottom: 8px;
}

.content-wrapper code {
    background-color: #f1f5f9;
    color: #e11d48;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    font-family: monospace;
}

/* Tabuľky v manuáli s vodorovným posuvníkom */
.table-responsive {
    overflow-x: auto;
    margin: 20px 0;
}

.table-responsive table {
    width: 100%;
    border-collapse: collapse;
}

.table-responsive th, .table-responsive td {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    font-size: 14px;
}

.table-responsive th {
    background-color: #f1f5f9;
    color: #0f172a;
}

/* Boxy (Tip a Alert) */
.tip, .alert {
    padding: 15px 20px;
    border-radius: 6px;
    margin: 20px 0;
    font-size: 14px;
}

.tip {
    background-color: #f0f9ff;
    border-left: 4px solid #0284c7;
    color: #0369a1;
}

.alert {
    background-color: #fef2f2;
    border-left: 4px solid #ef4444;
    color: #b91c1c;
}

/* --- SPODNÁ NAVIGÁCIA MEDZI KAPITOLAMI --- */
.chapter-navigation {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 30px;
}

.nav-btn {
    flex: 1;
    background: #fff;
    border: 1px solid var(--border-color);
    padding: 15px 20px;
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.nav-btn.next-btn {
    text-align: right;
}

.nav-btn:hover {
    border-color: #0284c7;
    box-shadow: 0 2px 8px rgba(2, 132, 199, 0.15);
}

.nav-btn .sub-text {
    font-size: 12px;
    color: #64748b;
    font-weight: 500;
}

.nav-btn .title-text {
    font-size: 15px;
    font-weight: bold;
    color: #0f172a;
    margin-top: 2px;
}

/* --- MOBILNÉ ROZHRANIE (RESPONZIVITA) --- */
.mobile-header {
    display: none;
}

.sidebar-overlay {
    display: none;
}

@media (max-width: 768px) {
    .mobile-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        background-color: #0f172a;
        color: #fff;
        padding: 12px 15px;
        position: sticky;
        top: 0;
        z-index: 1100;
        box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    }

    .mobile-menu-btn {
        background: #1e293b;
        color: #fff;
        border: 1px solid #334155;
        padding: 6px 12px;
        border-radius: 6px;
        font-size: 14px;
        font-weight: bold;
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .mobile-doc-title {
        font-size: 14px;
        font-weight: 600;
        color: #cbd5e1;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 160px;
    }

    .mobile-home-btn {
        font-size: 18px;
        text-decoration: none;
    }

    /* Bočný panel ako vysúvacia zásuvka (Off-Canvas) */
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1200;
        width: 280px;
        box-shadow: 4px 0 15px rgba(0,0,0,0.4);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background-color: rgba(0,0,0,0.5);
        z-index: 1150;
        display: none;
        backdrop-filter: blur(2px);
    }

    .sidebar-overlay.active {
        display: block;
    }

    .main-content {
        padding: 15px;
    }

    .content-wrapper {
        padding: 20px;
    }

    .chapter-navigation {
        flex-direction: column;
    }

    .nav-btn.next-btn {
        text-align: left;
    }
}