:root {
    --color-brand: #143f3a;
    --color-brand-strong: #0d302c;
    --color-accent: #c58b3b;
    --color-bg: #f3f5f4;
    --color-surface: #ffffff;
    --color-surface-soft: #f7f9f8;
    --color-text: #1e2a28;
    --color-muted: #64726f;
    --color-border: #dce4e1;
    --color-danger: #b42318;
    --shadow-sm: 0 1px 2px rgba(15, 47, 43, .05), 0 4px 14px rgba(15, 47, 43, .05);
    --shadow-md: 0 14px 35px rgba(15, 47, 43, .09);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --sidebar-width: 280px;
    --sidebar-collapsed: 84px;
}

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

html {
    min-width: 320px;
    min-height: 100%;
    color-scheme: light;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
    text-rendering: optimizeLegibility;
}

button, input, select, textarea { margin: 0; color: inherit; font: inherit; }
button, [type="button"], [type="submit"], a { -webkit-tap-highlight-color: transparent; }

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
    outline: 3px solid rgba(197, 139, 59, .35);
    outline-offset: 2px;
}

a { color: inherit; }
img, svg { display: block; max-width: 100%; }

.app-container { display: flex; width: 100%; min-height: 100vh; }

.main-area {
    flex: 1 1 auto;
    min-width: 0;
    padding: clamp(18px, 2.4vw, 36px);
    overflow: clip;
}

.main-area > * { max-width: 100%; }

.skip-link {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 1000;
    padding: 10px 14px;
    border-radius: 9px;
    background: #fff;
    color: var(--color-brand);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
    box-shadow: var(--shadow-md);
    transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

@media (max-width: 760px) {
    .app-container { display: block; }
    .main-area { width: 100%; padding: 16px 14px 94px; }
}

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