/* Ветерок КБ 15 — UI Foundation 2.0 */
:root {
    --vk-accent: #df8648;
    --vk-accent-hover: #c8733b;
    --vk-accent-soft: rgba(223, 134, 72, .12);
    --vk-success: #39ad7a;
    --vk-warning: #d8a744;
    --vk-danger: #d96868;
    --vk-info: #5d91d7;
    --vk-radius-xs: 9px;
    --vk-radius-sm: 12px;
    --vk-radius-md: 16px;
    --vk-radius-lg: 22px;
    --vk-shadow: 0 16px 42px rgba(18, 25, 38, .10);
    --vk-shadow-lg: 0 26px 70px rgba(18, 25, 38, .16);
    --vk-sidebar-width: 252px;
    --vk-content-max: 1500px;
    --vk-transition: 160ms ease;
}

:root[data-theme="light"] {
    --vk-bg: #f4f1ec;
    --vk-bg-elevated: #faf8f4;
    --vk-surface: #ffffff;
    --vk-surface-2: #f7f3ee;
    --vk-surface-3: #eee8e0;
    --vk-text: #1f2630;
    --vk-text-soft: #5f6875;
    --vk-text-muted: #8a929c;
    --vk-border: rgba(31, 38, 48, .09);
    --vk-border-strong: rgba(31, 38, 48, .15);
    --vk-sidebar-bg: #161c27;
    --vk-sidebar-text: #d8dde5;
    --vk-sidebar-muted: #8f9aab;
    --vk-overlay: rgba(16, 21, 29, .46);
    --vk-input-bg: #fbfaf8;
}

:root[data-theme="dark"] {
    --vk-bg: #090e18;
    --vk-bg-elevated: #0c1320;
    --vk-surface: #111a28;
    --vk-surface-2: #162131;
    --vk-surface-3: #1b293b;
    --vk-text: #f4f6f9;
    --vk-text-soft: #aab4c1;
    --vk-text-muted: #778598;
    --vk-border: rgba(255, 255, 255, .075);
    --vk-border-strong: rgba(255, 255, 255, .13);
    --vk-sidebar-bg: #080e18;
    --vk-sidebar-text: #dfe5ed;
    --vk-sidebar-muted: #7e8b9e;
    --vk-overlay: rgba(0, 0, 0, .62);
    --vk-input-bg: #0d1623;
    --vk-shadow: 0 16px 42px rgba(0, 0, 0, .20);
    --vk-shadow-lg: 0 26px 70px rgba(0, 0, 0, .34);
}

html {
    min-height: 100%;
    background: var(--vk-bg);
}

body.vk-app {
    margin: 0;
    min-height: 100vh;
    color: var(--vk-text);
    background:
        radial-gradient(circle at 86% -12%, var(--vk-accent-soft), transparent 28%),
        var(--vk-bg);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body.vk-app *, body.vk-app *::before, body.vk-app *::after { box-sizing: border-box; }
body.vk-app a { color: inherit; }
body.vk-app button, body.vk-app input, body.vk-app select, body.vk-app textarea { font: inherit; }
body.vk-app h1, body.vk-app h2, body.vk-app h3 { color: var(--vk-text); }
body.vk-app .subtitle, body.vk-app .muted { color: var(--vk-text-muted) !important; }

.vk-theme-switcher {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
    padding: 4px;
    border: 1px solid var(--vk-border);
    border-radius: 13px;
    background: var(--vk-surface-2);
}

.vk-theme-switcher button {
    min-height: 34px;
    border: 0;
    border-radius: 9px;
    padding: 0 8px;
    background: transparent;
    color: var(--vk-text-muted);
    cursor: pointer;
    font-size: 12px;
    font-weight: 700;
}

.vk-theme-switcher button.is-active {
    background: var(--vk-surface);
    color: var(--vk-accent);
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
}

.vk-theme-floating {
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 1100;
    width: min(330px, calc(100vw - 32px));
}

body.vk-app input,
body.vk-app select,
body.vk-app textarea {
    color: var(--vk-text);
    background: var(--vk-input-bg);
    border-color: var(--vk-border-strong);
}

@media (max-width: 720px) {
    .vk-theme-floating { bottom: 88px; }
}

/* =========================================================
   Ветерок КБ 15 — UI POLISH 2.3
   ========================================================= */
:root {
    --vk-focus: 0 0 0 3px color-mix(in srgb, var(--vk-accent) 18%, transparent);
    --vk-touch: 44px;
}

body.vk-app {
    transition: background-color 180ms ease, color 180ms ease;
}

body.vk-app :focus-visible {
    outline: none;
    box-shadow: var(--vk-focus);
}

body.vk-app button,
body.vk-app a,
body.vk-app input,
body.vk-app select,
body.vk-app textarea {
    -webkit-tap-highlight-color: transparent;
}

body.vk-app button,
body.vk-app [role="button"] {
    touch-action: manipulation;
}

body.vk-app input,
body.vk-app select,
body.vk-app textarea {
    min-height: var(--vk-touch);
}

body.vk-app textarea {
    resize: vertical;
}

body.vk-app ::selection {
    background: color-mix(in srgb, var(--vk-accent) 35%, transparent);
    color: var(--vk-text);
}

.vk-theme-switcher {
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--vk-border) 45%, transparent);
}

.vk-theme-switcher button {
    min-height: 36px;
    white-space: nowrap;
}

.vk-theme-switcher button:hover {
    color: var(--vk-text-soft);
}

.vk-theme-switcher button.is-active {
    border: 1px solid color-mix(in srgb, var(--vk-accent) 18%, var(--vk-border));
}

@media (prefers-reduced-motion: reduce) {
    body.vk-app *,
    body.vk-app *::before,
    body.vk-app *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}