/* ============================================================
   SCENE-BASE — tokens, type, layout primitives, header, footer.
   ============================================================ */

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

:root {
    /* Dark = default (the scene lives here) */
    --ink: #ece8e1;
    --ink-soft: rgba(236, 232, 225, 0.78);
    --ink-mute: rgba(236, 232, 225, 0.58);
    --ink-faint: rgba(236, 232, 225, 0.32);
    --ink-line: rgba(236, 232, 225, 0.11);
    --ink-line-strong: rgba(236, 232, 225, 0.22);

    --bg: #060b20;
    --bg-2: #0a1130;
    --card: rgba(22, 29, 45, 0.62);
    --card-solid: #161d2d;

    --accent: #713cfa;
    --accent-soft: rgba(113, 60, 250, 0.18);
    --accent-line: rgba(113, 60, 250, 0.42);
    --pink: #fa2374;
    --cyan: #14c5e1;
    --violet: #713cfa;
    --mint: #14c5e1;
    --slate: #7785a1;

    --font-serif: 'Sora', 'Inter', system-ui, sans-serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

    --radius: 3px;
    --radius-lg: 6px;
    --container: 1240px;
}

:root[dir="rtl"] {
    --font-sans: 'Tajawal', 'IBM Plex Sans Arabic', sans-serif;
    --font-serif: 'IBM Plex Sans Arabic', 'Tajawal', serif;
}

:root[data-theme="light"] {
    --ink: #060b20;
    --ink-soft: rgba(6, 11, 32, 0.78);
    --ink-mute: rgba(6, 11, 32, 0.58);
    --ink-faint: rgba(6, 11, 32, 0.32);
    --ink-line: rgba(6, 11, 32, 0.10);
    --ink-line-strong: rgba(6, 11, 32, 0.20);
    --bg: #f7f6fb;
    --bg-2: #ecebf5;
    --card: rgba(255, 255, 255, 0.82);
    --card-solid: #ffffff;
    --accent: #713cfa;
    --accent-soft: rgba(113, 60, 250, 0.12);
    --accent-line: rgba(113, 60, 250, 0.32);
    --slate: #7785a1;
}

body {
    font-family: var(--font-sans);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    overflow-x: hidden;
}

main { position: relative; z-index: 2; }

.container {
    /*max-width: var(--container);*/
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 3vw, 2.5rem);
    position: relative;
}

/* ---------- Scene stage (fixed behind content) ---------- */
.scene-stage {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
.scene-stage::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(120% 80% at 50% 0%, rgba(255,31,84,0.04), transparent 60%),
        linear-gradient(180deg, var(--bg), var(--bg-2) 50%, var(--bg));
    z-index: 0;
}
#scene-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ---------- Type ---------- */
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 300; margin: 0; letter-spacing: -0.01em; line-height: 1.05; }
h1 { font-size: clamp(3rem, 8vw, 7rem); }
h2 { font-size: clamp(2.2rem, 5vw, 4.4rem); }
h3 { font-size: clamp(1.4rem, 2.2vw, 2rem); line-height: 1.15; }
h4 { font-size: 1rem; font-family: var(--font-sans); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
em { font-style: italic; color: var(--accent); font-weight: 300; }
p { margin: 0; color: var(--ink-soft); }

.eyebrow {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-mute);
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--ink-line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.02);
}

.body-mute { color: var(--ink-mute); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.85rem 1.3rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-decoration: none;
    border-radius: var(--radius);
    transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    cursor: pointer;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}
.btn__icon { width: 16px; height: 16px; flex: 0 0 16px; transition: transform 0.2s ease; }
.btn:hover .btn__icon { transform: translateX(3px); }

.btn--primary {
    background: var(--accent);
    color: #fff;
    --mx: 50%;
    --my: 50%;
}
.btn--primary::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(120px 120px at var(--mx) var(--my), rgba(255,255,255,0.25), transparent 60%);
    opacity: 0;
    transition: opacity 0.2s ease;
}
.btn--primary:hover::before { opacity: 1; }
.btn--primary:hover { background: #ff345f; }

.btn--ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--ink-line-strong);
}
.btn--ghost:hover { border-color: var(--ink); background: rgba(236,232,225,0.05); }

:root[data-theme="light"] .btn--ghost:hover { background: rgba(19,19,26,0.04); }

/* ---------- Header ---------- */
.site-header {
    direction: ltr;
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    padding: 1rem 0;
    background: color-mix(in oklab, var(--bg) 62%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--ink-line);
}
.site-header__row {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    position: relative;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    direction: ltr;
    text-decoration: none;
    color: var(--ink);
}
.brand__logo { display: inline-flex; align-items: center; line-height: 0; }
.brand__logo .rc-logo-lockup {
    display: grid;
    width: 142px;
    height: auto;
    aspect-ratio: 1414 / 383;
    max-width: 36vw;
    flex: 0 0 auto;
}
.brand__logo .rc-logo-lockup__image {
    display: block;
    grid-area: 1 / 1;
    width: 100%;
    height: 100%;
    max-width: 100%;
    object-fit: contain;
    opacity: 0;
}
.brand__logo .rc-logo-lockup__image--dark { opacity: 1; }
:root[data-theme="light"] .brand__logo .rc-logo-lockup__image--light { opacity: 1; }
:root[data-theme="light"] .brand__logo .rc-logo-lockup__image--dark { opacity: 0; }
:root[data-theme="dark"] .brand__logo .rc-logo-lockup__image--dark { opacity: 1; }
:root[data-theme="dark"] .brand__logo .rc-logo-lockup__image--light { opacity: 0; }
.site-footer .brand__logo .rc-logo-lockup { width: 132px; }
.brand__name {
    display: inline-flex;
    flex-direction: column;
    line-height: 1;
    min-width: 0;
}
.brand__sub {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-top: 4px;
}

.nav { display: flex; align-items: center; gap: 1.5rem; }
.nav__utilities { display: flex; align-items: center; gap: 0.75rem; }
.nav__panel { display: flex; align-items: center; gap: 1.5rem; }
.nav__links { display: flex; gap: 1.75rem; }
.nav__links a {
    font-size: 13.5px;
    color: var(--ink-soft);
    text-decoration: none;
    letter-spacing: 0.01em;
    transition: color 0.15s ease;
    position: relative;
}
.nav__links a::after {
    content: "";
    position: absolute;
    left: 0; bottom: -6px;
    width: 100%; height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { transform: scaleX(1); }

.nav__actions { display: flex; align-items: center; gap: 0.75rem; }
.locale {
    display: inline-flex;
    direction: ltr;
    border: 1px solid var(--ink-line-strong);
    border-radius: 999px;
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
}
.locale a {
    padding: 0.35rem 0.7rem;
    text-decoration: none;
    color: var(--ink-mute);
}
.locale a.is-active { background: var(--ink); color: var(--bg); }

.theme-toggle {
    width: 44px; height: 24px;
    border-radius: 999px;
    background: var(--ink-line);
    border: 1px solid var(--ink-line-strong);
    position: relative;
    cursor: pointer;
    padding: 0;
}
.theme-toggle__thumb {
    position: absolute;
    top: 1px; left: 1px;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: var(--ink);
    transition: transform 0.2s ease;
}
:root[data-theme="dark"] .theme-toggle__thumb { transform: translateX(20px); background: var(--accent); }

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    border: 1px solid var(--ink-line-strong);
    background: var(--card);
    color: var(--ink);
    padding: 0;
    cursor: pointer;
}
.nav-toggle__icon {
    position: relative;
    width: 18px;
    height: 14px;
    display: block;
}
.nav-toggle__icon span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 0.2s ease, top 0.2s ease, opacity 0.2s ease;
}
.nav-toggle__icon span:nth-child(1) { top: 0; }
.nav-toggle__icon span:nth-child(2) { top: 6px; }
.nav-toggle__icon span:nth-child(3) { top: 12px; }
.nav.is-open .nav-toggle__icon span:nth-child(1) { top: 6px; transform: rotate(45deg); }
.nav.is-open .nav-toggle__icon span:nth-child(2) { opacity: 0; }
.nav.is-open .nav-toggle__icon span:nth-child(3) { top: 6px; transform: rotate(-45deg); }

@media (max-width: 980px) {
    .site-header { padding: 0.75rem 0; }
    .site-header__row {
        align-items: center;
        gap: 0.75rem;
    }
    .brand {
        min-width: 0;
        gap: 0.6rem;
    }
    .brand__sub { display: none; }
    .brand__logo .rc-logo-lockup { width: 118px; }
    .nav {
        margin-left: auto;
        flex-direction: column;
        align-items: flex-end;
        gap: 0.5rem;
    }
    .nav__utilities {
        gap: 0.5rem;
    }
    .nav-toggle { display: inline-flex; }
    .nav__panel {
        position: absolute;
        top: calc(100% + 0.75rem);
        left: 0;
        right: 0;
        display: grid;
        gap: 1rem;
        padding: 1rem;
        border: 1px solid var(--ink-line-strong);
        border-radius: var(--radius-lg);
        background: color-mix(in oklab, var(--bg) 78%, transparent);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-8px);
        transition: opacity 0.2s ease, transform 0.2s ease, visibility 0s linear 0.2s;
        z-index: 1;
    }
    .nav.is-open .nav__panel {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
        transition-delay: 0s;
    }
    .nav__links {
        display: grid;
        gap: 0.25rem;
    }
    .nav__links a {
        padding: 0.85rem 0;
        font-size: 1rem;
    }
    .nav__actions {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    .nav__actions .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 980px) {

    :root[dir="rtl"] .brand {
        width: 20%;
        justify-content: flex-end;
    }
    :root[dir="rtl"] .nav {
        width: 100%;
        margin-inline-start: 0;
        align-items: stretch;
    }
    :root[dir="rtl"] .nav__utilities {
        width: 100%;
        justify-content: flex-end;
    }
    :root[dir="rtl"] .nav__panel {
        inset-inline: 0;
    }
}

/* ---------- Phase rail (right edge) ---------- */
.phase-rail {
    position: fixed;
    top: 50%;
    right: 1.5rem;
    transform: translateY(-50%);
    z-index: 30;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.phase-rail__item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--ink-faint);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    padding: 0.4rem 0.6rem;
    border-radius: 999px;
    transition: color 0.2s ease, background 0.2s ease;
}
.phase-rail__dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--ink-line-strong);
    transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.phase-rail__label {
    opacity: 0;
    max-width: 0;
    overflow: hidden;
    white-space: nowrap;
    transition: opacity 0.25s ease, max-width 0.25s ease;
}
.phase-rail__item.is-active { color: var(--ink); }
.phase-rail__item.is-active .phase-rail__dot {
    background: var(--accent);
    transform: scale(1.6);
    box-shadow: 0 0 0 4px rgba(255, 31, 84, 0.15);
}
.phase-rail__item.is-active .phase-rail__label {
    opacity: 1;
    max-width: 120px;
}
@media (max-width: 820px) { .phase-rail { display: none; } }

/* ---------- Sections ---------- */
.section {
    position: relative;
    padding: clamp(7rem, 16vh, 14rem) 0;
    z-index: 2;
}
.section--tight { padding: clamp(5rem, 10vh, 8rem) 0; }

.section-head {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 2.5rem;
    align-items: end;
    margin-bottom: 4rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--ink-line);
}
.section-head__phase {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.25em;
    color: var(--ink-mute);
    margin-bottom: 1.25rem;
}
.section-head__phase .n { color: var(--accent); font-weight: 500; }
.section-head__title { font-size: clamp(2rem, 4.4vw, 3.8rem); }
.section-head__side {
    color: var(--ink-soft);
    max-width: 46ch;
    font-size: 15.5px;
    padding-bottom: 0.5rem;
}
@media (max-width: 820px) {
    .section-head { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(.2,.7,.2,1); transition-delay: var(--reveal-delay, 0ms); }
.reveal.is-in { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Footer ---------- */
.site-footer {
    position: relative;
    z-index: 2;
    padding: 4.5rem 0 2rem;
    border-top: 1px solid var(--ink-line);
    background: color-mix(in oklab, var(--bg) 85%, transparent);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.site-footer__grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.site-footer__brand p { margin-top: 1.2rem; max-width: 40ch; color: var(--ink-mute); font-size: 14px; }
.site-footer__col h4 { margin-bottom: 1rem; font-size: 11px; letter-spacing: 0.2em; color: var(--ink-faint); }
.site-footer__col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.site-footer__col a { text-decoration: none; color: var(--ink-soft); font-size: 14px; transition: color 0.15s ease; }
.site-footer__col a:hover { color: var(--accent); }
.site-footer__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--ink-line);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--ink-faint);
}
.site-footer__row a { text-decoration: none; color: var(--ink-mute); }
.site-footer__row a:hover { color: var(--ink); }

@media (max-width: 820px) {
    .site-footer__grid { grid-template-columns: 1fr; gap: 2rem; }
    .site-footer__row { flex-direction: column; gap: 0.6rem; }
}