/* ============================================================
   DevKarim — "Blueprint Atelier" Design System
   BASE: tokens, reset, typography, accessibility
   ============================================================ */

:root {
    /* Surfaces */
    --color-bg: #F4F1EA;            /* warm paper */
    --color-bg-alt: #ECE8DE;        /* deeper paper */
    --color-bg-dark: #0B0D12;       /* graphite night */
    --color-bg-dark-2: #11141B;     /* graphite raised */
    --color-surface: #FFFDF8;       /* card on paper */
    --color-surface-dark: #161A22;  /* card on graphite */
    --color-border: rgba(17, 19, 24, 0.12);
    --color-border-dark: rgba(244, 241, 234, 0.12);

    /* Ink */
    --color-text: #14161B;
    --color-text-secondary: #4A4D55;
    --color-text-muted: #84878F;
    --color-text-light: #F4F1EA;

    /* Brand */
    --color-primary: #FF5C1A;       /* signal orange */
    --color-primary-soft: #FF7A3D;  /* orange for text on dark */
    --color-primary-deep: #E04400;
    --color-accent: #FFB48A;
    --color-focus: #FF5C1A;
    --gradient-primary: linear-gradient(120deg, #FF7A3D 0%, #FF4D00 100%);

    /* Type */
    --font-display: 'Unbounded', 'Noto Sans Arabic', system-ui, sans-serif;
    --font-body: 'Sofia Sans', 'Noto Sans Arabic', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Mono', monospace;

    /* Motion */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Misc */
    --focus-ring: 0 0 0 3px rgba(255, 92, 26, 0.35);
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --shadow-card: 0 1px 2px rgba(17, 19, 24, 0.05), 0 12px 32px -12px rgba(17, 19, 24, 0.18);
    --shadow-pop: 0 24px 60px -16px rgba(17, 19, 24, 0.35);

    /* Blueprint grid texture (dark + light variants) */
    --grid-dark:
        linear-gradient(rgba(140, 150, 170, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(140, 150, 170, 0.07) 1px, transparent 1px);
    --grid-light:
        linear-gradient(rgba(17, 19, 24, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(17, 19, 24, 0.05) 1px, transparent 1px);
}

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

[hidden] {
    display: none !important;
}

/* ============================================
   ACCESSIBILITY UTILITIES
   ============================================ */
.visually-hidden,
.sr-only {
    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;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: #14161B;
    padding: 1rem 2rem;
    border-radius: 0 0 0.75rem 0.75rem;
    z-index: 10001;
    transition: top 0.3s ease;
    text-decoration: none;
    font-weight: 700;
}

.skip-link:focus {
    top: 0;
    outline: none;
}

*:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
    box-shadow: var(--focus-ring);
}

*:focus:not(:focus-visible) {
    outline: none;
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }

    .hero-content {
        opacity: 1 !important;
        transform: none !important;
    }

    .marquee-track {
        animation: none !important;
    }

    .testimonials-track {
        animation: none !important;
        flex-wrap: wrap;
        width: auto;
        justify-content: center;
    }
}

/* ============================================
   DOCUMENT
   ============================================ */
html {
    font-size: 16px;
    overflow-y: scroll;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: clip;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body.no-scroll {
    overflow: hidden;
}

::selection {
    background: var(--color-primary);
    color: #FFFDF8;
}

/* Slim scrollbar in brand colors */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-alt);
}

::-webkit-scrollbar-thumb {
    background: #B9B4A6;
    border-radius: 100px;
    border: 2px solid var(--color-bg-alt);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Anchor offset below fixed header */
section[id],
div[id] {
    scroll-margin-top: 96px;
}

img,
video {
    max-width: 100%;
    display: block;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.06;
    letter-spacing: -0.015em;
    text-wrap: balance;
}

h1 { font-size: clamp(2.4rem, 6.5vw, 5.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 3.25rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.45rem); }

p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

a {
    color: inherit;
    text-decoration: none;
}

strong { font-weight: 700; }

/* Accent text — solid signal orange (replaces old gradient text, class kept for compatibility) */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Mono technical label */
.mono-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

/* RTL adjustments */
[dir="rtl"] h1,
[dir="rtl"] h2,
[dir="rtl"] h3 {
    letter-spacing: 0;
}