/* ============================================================
   Khaareto — global design tokens & base styles
   Mirrors the "Khaareto Homepage" design-system source.
   ============================================================ */

:root {
    --kh-bg: #0d1014;
    --kh-bg-alt: #0f1318;
    --kh-bg-footer: #0b0e11;
    --kh-surface: #12171d;
    --kh-surface-alt: #141a20;
    --kh-surface-raised: #161c23;
    --kh-border: #1e242c;
    --kh-border-strong: #2a333d;
    --kh-border-hover: #3a4552;
    --kh-text: #e8ecf1;
    --kh-text-soft: #aab4c0;
    --kh-text-muted: #99a4b1;
    --kh-text-mute2: #8a95a2;
    --kh-text-dim: #6d7887;
    --kh-text-dim2: #7e8896;
    --kh-text-faint: #56606d;
    --kh-accent: #f0b323;
    --kh-accent-hover: #ffd166;
    --kh-on-accent: #14181d;
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--kh-bg);
    overflow-x: hidden;
}

* {
    box-sizing: border-box;
}

body {
    font-family: Vazirmatn, system-ui, sans-serif;
    color: var(--kh-text);
}

::selection {
    background: var(--kh-accent);
    color: var(--kh-on-accent);
}

h1:focus {
    outline: none;
}

/* Scroll-anchor offset so the sticky header never covers a section heading. */
[id] {
    scroll-margin-top: 108px;
}

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .kh-pulse, .kh-scan {
        animation: none !important;
    }
}

/* ---------- Animations from the source design ---------- */
@keyframes khScan {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

@keyframes khPulse {
    0%, 100% {
        opacity: .35;
    }

    50% {
        opacity: 1;
    }
}

.kh-pulse {
    animation: khPulse 1.8s ease-in-out infinite;
}

.kh-scan {
    animation: khScan 4.5s linear infinite;
}

/* ---------- MudBlazor overrides to match the design ---------- */
.mud-appbar.kh-appbar {
    background: rgba(13, 16, 20, .9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--kh-border);
    box-shadow: none;
    height: auto;
}

.mud-typography {
    font-family: Vazirmatn, system-ui, sans-serif;
}

/* Persian digits read better with a slightly looser tracking. */
.kh-num {
    letter-spacing: .5px;
}

.blazor-error-boundary {
    background: #b32121;
    padding: 1rem;
    color: white;
}

.blazor-error-boundary::after {
    content: "خطایی رخ داده است.";
}