/* === MAIN.CSS ===
   assets/css/main.css
   НАЗНАЧЕНИЕ: Основные стили SPA — лейаут, sidebar, секции
   Эстетика: Индустриальное/утилитарное
   Шрифты: IBM Plex Mono (display) + Exo 2 (body)
*/

/* Dark theme (default) */
:root, [data-theme="dark"] {
    --bg-primary: hsl(230, 15%, 6%);
    --bg-secondary: hsl(230, 12%, 9%);
    --bg-card: hsl(230, 12%, 11%);
    --bg-input: hsl(230, 12%, 8%);
    --text-primary: hsl(0, 0%, 95%);
    --text-secondary: hsl(0, 0%, 75%);
    --text-muted: hsl(0, 0%, 50%);
    --color-primary: hsl(227, 75%, 60%);
    --color-primary-hover: hsl(227, 75%, 50%);
    --color-success: hsl(145, 63%, 42%);
    --color-warning: hsl(38, 92%, 50%);
    --color-danger: hsl(0, 72%, 51%);
    --color-info: hsl(198, 93%, 60%);
    --border-color: hsl(230, 12%, 18%);
    --border-subtle: hsl(230, 12%, 14%);
    --sidebar-width: 220px;
    --font-display: 'IBM Plex Mono', monospace;
    --font-body: 'Exo 2', sans-serif;
    --radius: 6px;
    --radius-sm: 4px;
    --hover-bg: hsl(230, 12%, 14%);
    --hover-border: hsl(230, 12%, 22%);
    --nav-active-bg: hsl(227, 75%, 60%, 0.12);
    --table-hover: hsl(230, 12%, 9%);
    --flow-step-bg: hsl(230, 12%, 8%);
    --code-block-bg: hsl(230, 15%, 6%);
}

/* Light theme */
[data-theme="light"] {
    --bg-primary: hsl(220, 20%, 97%);
    --bg-secondary: hsl(220, 20%, 94%);
    --bg-card: hsl(0, 0%, 100%);
    --bg-input: hsl(220, 20%, 96%);
    --text-primary: hsl(230, 20%, 15%);
    --text-secondary: hsl(230, 10%, 40%);
    --text-muted: hsl(230, 8%, 55%);
    --color-primary: hsl(227, 75%, 50%);
    --color-primary-hover: hsl(227, 75%, 40%);
    --color-success: hsl(145, 63%, 35%);
    --color-warning: hsl(38, 92%, 45%);
    --color-danger: hsl(0, 72%, 45%);
    --color-info: hsl(198, 80%, 42%);
    --border-color: hsl(220, 15%, 85%);
    --border-subtle: hsl(220, 15%, 90%);
    --hover-bg: hsl(220, 15%, 92%);
    --hover-border: hsl(220, 15%, 80%);
    --nav-active-bg: hsl(227, 75%, 50%, 0.08);
    --table-hover: hsl(220, 20%, 96%);
    --flow-step-bg: hsl(220, 20%, 95%);
    --code-block-bg: hsl(220, 20%, 96%);
}

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

body {
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 1.5;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* === LOGIN === */
.vi-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-primary);
}
.vi-login__card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 32px;
    width: 340px;
}
.vi-login__header {
    text-align: center;
    margin-bottom: 24px;
}
.vi-login__header h1 {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    margin-top: 12px;
}
.vi-login__header p {
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 4px;
}
.vi-login__icon { width: 40px; height: 40px; color: var(--color-primary); }
.vi-login__form { display: flex; flex-direction: column; gap: 12px; }

/* === APP LAYOUT === */
.vi-app {
    display: flex;
    min-height: 100vh;
}

/* === SIDEBAR === */
.vi-sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
}
.vi-sidebar__header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
}
.vi-sidebar__header svg { width: 20px; height: 20px; color: var(--color-primary); }
.vi-sidebar__nav {
    flex: 1;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.vi-sidebar__footer {
    padding: 8px;
    border-top: 1px solid var(--border-color);
}

.vi-nav__item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    transition: background 0.15s, color 0.15s;
}
.vi-nav__item svg { width: 16px; height: 16px; flex-shrink: 0; }
.vi-nav__item:hover { background: var(--hover-bg); color: var(--text-primary); }
.vi-nav__item.active { background: var(--nav-active-bg); color: var(--color-primary); }
.vi-nav__item--danger:hover { background: hsl(0, 72%, 51%, 0.12); color: var(--color-danger); }

/* === MAIN CONTENT === */
.vi-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 16px;
    min-height: 100vh;
}

/* === SECTIONS === */
.vi-section { display: none; }
.vi-section.active { display: block; }

.vi-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    gap: 10px;
}
.vi-section__header h2 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
}
.vi-section__actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* === LOADING === */
.vi-loading {
    color: var(--text-muted);
    padding: 20px;
    text-align: center;
    font-size: 12px;
}

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: hsl(230, 12%, 25%); }