/* =====================================================================
   CORTIXIA — Premium Design System
   Palette extracted from the brand logo:
     - Deep navy:   #0A1F44
     - Royal blue:  #1E40AF
     - Electric:    #00B4FF
     - Cyan accent: #06E5F5
   ===================================================================== */

:root {
    /* Brand palette */
    --c-navy-900: #061533;
    --c-navy-800: #0A1F44;
    --c-navy-700: #112A5E;
    --c-blue-600: #1E40AF;
    --c-blue-500: #2563EB;
    --c-blue-400: #3B82F6;
    --c-electric: #00B4FF;
    --c-cyan-400: #06E5F5;
    --c-cyan-300: #67E8F9;

    /* Light surfaces */
    --bg: #F6F8FC;
    --bg-elev: #FFFFFF;
    --bg-soft: #EEF3FB;
    --surface: #FFFFFF;
    --surface-2: #F4F7FC;
    --border: rgba(10, 31, 68, 0.08);
    --border-strong: rgba(10, 31, 68, 0.14);

    /* Text */
    --text: #0A1F44;
    --text-soft: #3B4A6B;
    --text-mute: #6B7894;

    /* Effects */
    --shadow-sm: 0 2px 6px rgba(10, 31, 68, 0.05);
    --shadow-md: 0 12px 32px -8px rgba(10, 31, 68, 0.12);
    --shadow-lg: 0 28px 60px -18px rgba(10, 31, 68, 0.22);
    --shadow-glow: 0 12px 60px -10px rgba(0, 180, 255, 0.35);

    --radius-xs: 8px;
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-pill: 999px;

    /* Gradients */
    --grad-brand: linear-gradient(135deg, #0A1F44 0%, #1E40AF 45%, #06E5F5 100%);
    --grad-brand-soft: linear-gradient(135deg, rgba(10,31,68,0.04) 0%, rgba(0,180,255,0.08) 100%);
    --grad-text: linear-gradient(135deg, #0A1F44 0%, #1E40AF 50%, #00B4FF 100%);
    --grad-1: linear-gradient(135deg, #1E40AF, #06E5F5);
    --grad-2: linear-gradient(135deg, #0A1F44, #3B82F6);
    --grad-3: linear-gradient(135deg, #2563EB, #67E8F9);
    --grad-4: linear-gradient(135deg, #06E5F5, #1E40AF);
    --grad-5: linear-gradient(135deg, #112A5E, #00B4FF);
    --grad-6: linear-gradient(135deg, #0A1F44, #2563EB);
    --grad-7: linear-gradient(135deg, #1E40AF, #00B4FF);
    --grad-8: linear-gradient(135deg, #3B82F6, #06E5F5);

    /* Typography */
    --font-display: 'Inter', 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

    /* Layout */
    --nav-h: 92px;
    --container-max: 1240px;
}

[data-theme="dark"] {
    --bg: #04091B;
    --bg-elev: #0B1430;
    --bg-soft: #0E1A3E;
    --surface: #0E1A3E;
    --surface-2: #14245A;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.18);

    --text: #EAF1FB;
    --text-soft: #B6C2DA;
    --text-mute: #8290B5;

    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 16px 36px -10px rgba(0, 0, 0, 0.55);
    --shadow-lg: 0 30px 80px -20px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 20px 80px -10px rgba(0, 180, 255, 0.4);

    --grad-text: linear-gradient(135deg, #FFFFFF 0%, #67E8F9 50%, #00B4FF 100%);
    --grad-brand-soft: linear-gradient(135deg, rgba(0,180,255,0.08), rgba(30,64,175,0.16));
}

/* ===== Reset & base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background-color .4s ease, color .4s ease;
}
img, svg, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-blue-500); }
button { font: inherit; cursor: pointer; }

/* ===== Typography ===== */
h1, h2, h3, h4, h5 {
    font-family: var(--font-display);
    color: var(--text);
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin: 0 0 .5em;
    font-weight: 700;
}
h1 { font-size: clamp(2.4rem, 5.4vw, 4.4rem); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.85rem, 3.4vw, 2.85rem); font-weight: 750; letter-spacing: -0.028em; }
h3 { font-size: clamp(1.25rem, 1.8vw, 1.5rem); font-weight: 700; }
h4 { font-size: 1.125rem; font-weight: 650; }
p  { color: var(--text-soft); margin: 0 0 1em; }
.lead { font-size: clamp(1.05rem, 1.4vw, 1.25rem); color: var(--text-soft); max-width: 64ch; }

.text-gradient {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* ===== Layout ===== */
.container-cx {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}
.section {
    padding: clamp(4rem, 9vw, 7rem) 0;
    position: relative;
}
.section-tight { padding: clamp(3rem, 6vw, 4.5rem) 0; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: .8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--c-blue-500);
    padding: .35rem .85rem;
    background: var(--grad-brand-soft);
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    margin-bottom: 1.25rem;
}
.eyebrow .dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--c-electric);
    box-shadow: 0 0 12px var(--c-electric);
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .55; transform: scale(.85); }
}

.section-header { text-align: center; max-width: 720px; margin: 0 auto 3.5rem; }
.section-header .lead { margin: 1rem auto 0; }

/* ===== Buttons ===== */
.btn-cx {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    padding: .85rem 1.55rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: .96rem;
    letter-spacing: -0.01em;
    border: 1px solid transparent;
    transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease, background .3s ease, color .25s ease;
    cursor: pointer;
    white-space: nowrap;
}
.btn-cx:hover { transform: translateY(-2px); }
.btn-cx:active { transform: translateY(0); }

.btn-primary {
    background: var(--grad-brand);
    color: #fff;
    box-shadow: var(--shadow-glow);
}
.btn-primary:hover { color: #fff; box-shadow: 0 18px 70px -8px rgba(0,180,255,0.55); }

.btn-ghost {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border-strong);
    box-shadow: var(--shadow-sm);
}
.btn-ghost:hover { border-color: var(--c-blue-500); color: var(--c-blue-500); }

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-strong);
}
.btn-outline:hover { background: var(--surface); border-color: var(--c-blue-500); color: var(--c-blue-500); }

.btn-lg { padding: 1.05rem 1.9rem; font-size: 1.02rem; }
.btn-arrow svg { transition: transform .25s ease; }
.btn-arrow:hover svg { transform: translateX(4px); }

/* ===== Loader ===== */
.cx-loader {
    position: fixed; inset: 0;
    background: var(--bg);
    display: flex; align-items: center; justify-content: center;
    z-index: 9999;
    transition: opacity .6s ease, visibility .6s ease;
}
.cx-loader.hidden { opacity: 0; visibility: hidden; }
.cx-loader__ring {
    width: 60px; height: 60px;
    border-radius: 50%;
    border: 3px solid rgba(0, 180, 255, 0.16);
    border-top-color: var(--c-electric);
    animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Scroll progress ===== */
.scroll-progress {
    position: fixed; top: 0; left: 0; right: 0;
    height: 3px;
    background: transparent;
    z-index: 1100;
    pointer-events: none;
}
.scroll-progress__bar {
    height: 100%; width: 0%;
    background: var(--grad-brand);
    box-shadow: 0 0 12px rgba(0, 180, 255, .55);
    transition: width .08s linear;
}

/* ===== Navbar ===== */
.cx-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    background: color-mix(in srgb, var(--bg) 75%, transparent);
    border-bottom: 1px solid transparent;
    transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.cx-nav.is-scrolled {
    background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
    border-bottom-color: var(--border);
    box-shadow: 0 8px 24px -16px rgba(10,31,68,.18);
}
.cx-nav__inner {
    display: flex; align-items: center; justify-content: space-between;
    height: var(--nav-h);
    gap: 1.25rem;
}
/* =====================================================================
   Navbar logo — choreographed entrance (premium SaaS-style)
   Sequence on first paint:
     0.10s  entrance starts (blur + scale-up + fade)
     1.00s  box-shadow ripple emanates outward like a radar ping
     1.20s  diagonal sheen sweeps across the mark, auto-once
     1.50s  cyan halo grows in
     2.50s  halo settles into perpetual breathing
     hover  scale + intense glow + on-demand sheen replay
   ===================================================================== */

.cx-nav__brand {
    display: flex; align-items: center; gap: .65rem;
    font-weight: 800; letter-spacing: -.02em;
    font-size: 1.18rem; color: var(--text);
    position: relative;
    isolation: isolate;
    perspective: 800px;
}
/* Logo stack — two PNGs share one grid cell so they perfectly overlap;
   visibility is toggled by theme via opacity on the individual imgs. */
.cx-logo-stack {
    display: grid;
    grid-template-areas: "stack";
    position: relative;
    z-index: 1;
    will-change: transform, filter;
    transform-origin: center center;
    transition: transform .4s cubic-bezier(.2,.8,.2,1), filter .4s ease;
    filter: drop-shadow(0 2px 10px rgba(0, 180, 255, 0));
    /* Entrance animation runs on the WRAPPER, not on the individual imgs,
       so the per-img opacity rules below stay authoritative after it ends. */
    animation: cx-logo-in 1.15s cubic-bezier(.2, .9, .25, 1.15) .1s both;
}
.cx-logo-stack > .cx-logo { grid-area: stack; }

.cx-nav__brand .cx-logo {
    height: 74px;
    width: auto;
    display: block;
    transition: opacity .35s ease;
}
/* Theme switch toggles which file is visible — no JS, no flash. */
.cx-nav__brand .cx-logo--dark  { opacity: 0; }
.cx-nav__brand .cx-logo--light { opacity: 1; }
[data-theme="dark"] .cx-nav__brand .cx-logo--light { opacity: 0; }
[data-theme="dark"] .cx-nav__brand .cx-logo--dark  { opacity: 1; }
.cx-nav__brand:hover { color: var(--text); }
.cx-nav__brand:hover .cx-logo-stack {
    transform: scale(1.05);
    filter: drop-shadow(0 10px 26px rgba(0, 180, 255, .55));
}
[data-theme="dark"] .cx-nav__brand:hover .cx-logo-stack {
    filter: drop-shadow(0 10px 26px rgba(0, 180, 255, .65));
}
.cx-nav__brand:active .cx-logo-stack {
    transform: scale(.95);
    transition-duration: .12s;
}

/* Halo: emerges after the logo lands, then breathes continuously.
   Wraps the entire wide logo as a soft elliptical glow. */
.cx-nav__brand::before {
    content: '';
    position: absolute;
    inset: -14px -22px;
    border-radius: 30px;
    background: radial-gradient(ellipse at center, rgba(0, 180, 255, .45), transparent 70%);
    opacity: 0;
    z-index: 0;
    pointer-events: none;
    filter: blur(6px);
    transition: opacity .4s ease, transform .4s ease;
    animation:
        cx-logo-halo-in 1s ease-out 1.5s both,
        cx-logo-halo-pulse 3.8s ease-in-out 2.5s infinite;
}
.cx-nav__brand:hover::before {
    opacity: .95;
    transform: scale(1.08);
}

/* Sheen: auto-once on load (~1.2s), and replays on hover. Covers the full logo. */
.cx-nav__brand::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg,
        transparent 35%,
        rgba(255, 255, 255, .7) 50%,
        transparent 65%);
    background-size: 280% 100%;
    background-position: 200% 0;
    pointer-events: none;
    opacity: 0;
    z-index: 2;
    mix-blend-mode: screen;
    animation: cx-logo-sheen 1.4s cubic-bezier(.4, 0, .2, 1) 1.2s 1 both;
}
.cx-nav__brand:hover::after {
    animation: cx-logo-sheen 1s ease-in-out;
}

/* ===== Keyframes ===== */

/* 1. Entrance — blurred zoom-in with a gentle spring overshoot */
@keyframes cx-logo-in {
    0%   { opacity: 0; transform: scale(.55) translateY(-10px); filter: blur(12px); }
    35%  { opacity: 1; filter: blur(2px); }
    65%  { transform: scale(1.08) translateY(0); filter: blur(0); }
    85%  { transform: scale(.98); }
    100% { opacity: 1; transform: scale(1) translateY(0); filter: blur(0); }
}

/* 2. Sheen sweep across the logo */
@keyframes cx-logo-sheen {
    0%   { opacity: 0; background-position: 200% 0; }
    15%  { opacity: 1; }
    85%  { opacity: 1; }
    100% { opacity: 0; background-position: -120% 0; }
}

/* 3. Halo first appearance (one-time after entrance) */
@keyframes cx-logo-halo-in {
    0%   { opacity: 0; transform: scale(.7); }
    100% { opacity: .45; transform: scale(1); }
}

/* 4. Halo perpetual breathing — barely-there life signal */
@keyframes cx-logo-halo-pulse {
    0%, 100% { opacity: .25; transform: scale(1); }
    50%      { opacity: .55; transform: scale(1.06); }
}

.cx-nav__links {
    display: flex; gap: .25rem;
    list-style: none; margin: 0; padding: 0;
    align-items: center;
}
.cx-nav__link {
    position: relative;
    padding: .55rem .95rem;
    border-radius: var(--radius-pill);
    font-weight: 500; font-size: .95rem;
    color: var(--text-soft);
    transition: color .2s, background .2s;
}
.cx-nav__link:hover { color: var(--text); background: var(--bg-soft); }
.cx-nav__link.is-active { color: var(--text); }
.cx-nav__link.is-active::after {
    content: '';
    position: absolute; left: 50%; bottom: -2px;
    transform: translateX(-50%);
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--c-electric);
    box-shadow: 0 0 12px var(--c-electric);
}

.cx-nav__actions { display: flex; align-items: center; gap: .6rem; }
.cx-theme-toggle {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    display: inline-flex; align-items: center; justify-content: center;
    transition: transform .2s, border-color .2s, background .2s;
}
.cx-theme-toggle:hover { transform: rotate(15deg); border-color: var(--c-blue-500); }
.cx-theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .cx-theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .cx-theme-toggle .icon-moon { display: none; }

.cx-burger {
    display: none;
    width: 40px; height: 40px; border-radius: 50%;
    border: 1px solid var(--border); background: var(--surface);
    color: var(--text);
    align-items: center; justify-content: center;
}
.cx-burger svg { transition: transform .25s ease; }
.cx-burger.is-open svg { transform: rotate(90deg); }

@media (max-width: 960px) {
    .cx-burger { display: inline-flex; }
    .cx-nav__links {
        position: absolute;
        top: 100%; left: 0; right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: .25rem;
        padding: 1rem 1.5rem 1.5rem;
        margin: 0;
        background: color-mix(in srgb, var(--bg-elev) 95%, transparent);
        border-bottom: 1px solid var(--border);
        backdrop-filter: blur(20px);
        transform: translateY(-12px);
        opacity: 0; pointer-events: none;
        transition: opacity .25s ease, transform .25s ease;
    }
    .cx-nav__links.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
    .cx-nav__link { padding: .85rem 1rem; border-radius: var(--radius-md); }
    .cx-nav__cta-desktop { display: none; }
}

/* ===== Background blobs ===== */
.bg-blobs {
    position: absolute; inset: 0;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: .28;
    animation: blob-float 16s ease-in-out infinite;
    mix-blend-mode: screen;
}
.blob--1 { width: 520px; height: 520px; background: radial-gradient(circle, #00B4FF 0%, transparent 70%); top: -180px; left: -160px; }
.blob--2 { width: 460px; height: 460px; background: radial-gradient(circle, #1E40AF 0%, transparent 70%); top: 30%; right: -160px; animation-delay: -6s; }
.blob--3 { width: 380px; height: 380px; background: radial-gradient(circle, #06E5F5 0%, transparent 70%); bottom: -120px; left: 30%; animation-delay: -3s; }
[data-theme="dark"] .blob { opacity: .45; }

@keyframes blob-float {
    0%, 100% { transform: translate(0,0) scale(1); }
    33% { transform: translate(40px, -30px) scale(1.06); }
    66% { transform: translate(-30px, 40px) scale(.96); }
}

/* ===== Hero ===== */
.hero {
    position: relative;
    padding: calc(var(--nav-h) + 4.5rem) 0 4rem;
    overflow: hidden;
    isolation: isolate;
}
.hero__grid {
    /* Global animated grid in .cx-bg__grid handles this now —
       hidden to avoid moiré with the site-wide layer. */
    display: none;
}
.hero__inner {
    position: relative; z-index: 2;
    text-align: center;
    max-width: 920px;
    margin: 0 auto;
}
.hero h1 { margin-bottom: 1.25rem; }
.hero .lead { margin: 0 auto 2.25rem; }
.hero__cta {
    display: flex; gap: .85rem;
    justify-content: center; flex-wrap: wrap;
    margin-bottom: 3rem;
}
.hero__meta {
    display: flex; justify-content: center; gap: 2rem; flex-wrap: wrap;
    color: var(--text-mute); font-size: .92rem;
}
.hero__meta-item { display: inline-flex; align-items: center; gap: .45rem; }
.hero__meta-item svg { color: var(--c-blue-500); }

/* Hero floating preview */
.hero__preview {
    position: relative; z-index: 2;
    margin: 4rem auto 0;
    max-width: 980px;
    border-radius: var(--radius-xl);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: transform .8s cubic-bezier(.2,.8,.2,1);
}
.hero__preview-bar {
    display: flex; align-items: center; gap: .4rem;
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
}
.hero__preview-bar span {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--border-strong);
}
.hero__preview-body {
    padding: 1.25rem 1.5rem 1.75rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}
@media (max-width: 720px) { .hero__preview-body { grid-template-columns: 1fr; } }
.preview-card {
    border: 1px solid var(--border);
    background: var(--bg-elev);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}
.preview-card h4 { margin: .25rem 0 .5rem; font-size: 1rem; }
.preview-bar { height: 6px; background: var(--surface-2); border-radius: var(--radius-pill); overflow: hidden; margin-bottom: .55rem; }
.preview-bar > span { display: block; height: 100%; background: var(--grad-brand); border-radius: inherit; }
.preview-stat { font-family: var(--font-mono); font-size: 1.6rem; color: var(--text); font-weight: 700; letter-spacing: -.02em; }
.preview-label { color: var(--text-mute); font-size: .82rem; }

/* ===== Stats strip ===== */
.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    padding: 2.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-top: -3rem;
    position: relative; z-index: 3;
}
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); padding: 1.75rem; } }
.stat__value {
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.6vw, 2.85rem);
    font-weight: 800;
    letter-spacing: -.03em;
    background: var(--grad-brand);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
    line-height: 1;
}
.stat__label { color: var(--text-mute); margin-top: .5rem; font-size: .92rem; }

/* ===== Cards ===== */
.card-grid {
    display: grid; gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: transform .35s cubic-bezier(.2,.8,.2,1), border-color .25s, box-shadow .35s;
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute; inset: 0;
    background: var(--grad-brand-soft);
    opacity: 0; transition: opacity .35s ease;
    pointer-events: none;
}
.card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 180, 255, 0.35);
    box-shadow: var(--shadow-lg);
}
.card:hover::before { opacity: 1; }
.card > * { position: relative; z-index: 1; }

/* Service card */
.service-card .icon-wrap {
    width: 56px; height: 56px; border-radius: var(--radius-md);
    display: inline-flex; align-items: center; justify-content: center;
    color: #fff;
    margin-bottom: 1.25rem;
    box-shadow: 0 12px 30px -10px rgba(30,64,175,.45);
}
.service-card h3 { margin-bottom: .25rem; }
.service-card .tagline { color: var(--c-blue-500); font-size: .88rem; font-weight: 600; margin-bottom: .85rem; }
.service-card p { color: var(--text-soft); font-size: .96rem; }
.service-card ul {
    list-style: none; padding: 0; margin: 1.25rem 0 0;
    display: flex; flex-direction: column; gap: .5rem;
}
.service-card ul li {
    display: flex; align-items: center; gap: .5rem;
    font-size: .9rem; color: var(--text-soft);
}
.service-card ul li svg { color: var(--c-electric); flex: 0 0 auto; }

.gradient-1 { background: var(--grad-1); }
.gradient-2 { background: var(--grad-2); }
.gradient-3 { background: var(--grad-3); }
.gradient-4 { background: var(--grad-4); }
.gradient-5 { background: var(--grad-5); }
.gradient-6 { background: var(--grad-6); }
.gradient-7 { background: var(--grad-7); }
.gradient-8 { background: var(--grad-8); }

/* Project card */
.project-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    transition: transform .35s cubic-bezier(.2,.8,.2,1), border-color .25s, box-shadow .35s;
}
.project-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0,180,255,.35);
    box-shadow: var(--shadow-lg);
}
.project-card__media {
    aspect-ratio: 16/10;
    position: relative;
    display: flex; align-items: flex-end; justify-content: space-between;
    padding: 1.25rem;
    color: #fff;
    overflow: hidden;
}
.project-card__media::after {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(120% 80% at 20% 0%, rgba(255,255,255,.18), transparent 60%);
}
.project-card__media-deco {
    position: absolute; inset: 0;
    opacity: .2;
    background-image:
        linear-gradient(rgba(255,255,255,.4) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.4) 1px, transparent 1px);
    background-size: 28px 28px;
    mask-image: radial-gradient(circle at 80% 30%, #000 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(circle at 80% 30%, #000 30%, transparent 70%);
    pointer-events: none;
}

/* Project illustration layered above the gradient & under the badges */
.project-card__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: .9;
    transform: scale(1.02);
    transition: transform .55s cubic-bezier(.2,.8,.2,1), opacity .35s ease, filter .35s ease;
    pointer-events: none;
    filter: drop-shadow(0 6px 20px rgba(0,0,0,.18));
}
.project-card:hover .project-card__image {
    transform: scale(1.08);
    opacity: 1;
    filter: drop-shadow(0 10px 26px rgba(0,0,0,.28));
}
.project-card__category {
    position: relative; z-index: 1;
    background: rgba(0,0,0,.25);
    padding: .35rem .8rem; border-radius: var(--radius-pill);
    font-size: .78rem; font-weight: 600; letter-spacing: .04em;
    backdrop-filter: blur(8px);
}
.project-card__metric {
    position: relative; z-index: 1;
    font-family: var(--font-mono); font-weight: 700;
    background: rgba(255,255,255,.15);
    padding: .35rem .8rem; border-radius: var(--radius-pill);
    backdrop-filter: blur(8px);
}
.project-card__body { padding: 1.5rem 1.5rem 1.75rem; }
.project-card__body h3 { margin-bottom: .35rem; }
.project-card__tags {
    display: flex; flex-wrap: wrap; gap: .35rem;
    margin-top: 1rem;
}
.tech-badge {
    font-size: .78rem; font-weight: 500;
    padding: .3rem .65rem;
    border-radius: var(--radius-pill);
    background: var(--bg-soft);
    color: var(--text-soft);
    border: 1px solid var(--border);
}

/* Testimonial card */
.testimonial {
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex; flex-direction: column; gap: 1.25rem;
}
.testimonial blockquote {
    margin: 0; font-size: 1.05rem; line-height: 1.65;
    color: var(--text); font-weight: 500;
}
.testimonial__author {
    display: flex; align-items: center; gap: .9rem;
}
.testimonial__avatar {
    width: 48px; height: 48px; border-radius: 50%;
    background: var(--grad-brand); color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; letter-spacing: .02em;
}
.testimonial__name { font-weight: 600; line-height: 1.2; }
.testimonial__role { font-size: .85rem; color: var(--text-mute); }
.testimonial__quote-mark {
    color: var(--c-blue-400); opacity: .35;
}

/* Technologies */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: .85rem;
}
.tech-chip {
    display: flex; align-items: center; gap: .65rem;
    padding: .95rem 1.1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    color: var(--text);
    font-weight: 600; font-size: .95rem;
    transition: transform .25s ease, border-color .2s, color .2s;
}
.tech-chip:hover {
    transform: translateY(-2px);
    color: var(--c-blue-500);
    border-color: rgba(0,180,255,.4);
}
.tech-chip svg { color: var(--c-blue-500); flex: 0 0 auto; }

/* Partners */
.partners {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.25rem 2rem;
    align-items: center;
    padding: 2rem 2.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: var(--surface);
}
.partner {
    text-align: center;
    font-weight: 700;
    color: var(--text-mute);
    font-size: 1.05rem;
    letter-spacing: -.01em;
    opacity: .7;
    transition: opacity .2s, color .2s;
}
.partner:hover { opacity: 1; color: var(--text); }

/* Final CTA */
.cta-banner {
    position: relative;
    overflow: hidden;
    padding: clamp(3rem, 6vw, 5rem);
    border-radius: var(--radius-xl);
    background: var(--grad-brand);
    color: #fff;
    text-align: center;
    box-shadow: var(--shadow-lg);
}
.cta-banner::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,.18), transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0,180,255,.25), transparent 50%);
    pointer-events: none;
}
.cta-banner h2 { color: #fff; }
.cta-banner p { color: rgba(255,255,255,.85); }
.cta-banner .btn-ghost { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.25); color: #fff; }
.cta-banner .btn-ghost:hover { background: rgba(255,255,255,.22); color: #fff; }
.cta-banner .btn-primary { background: #fff; color: var(--c-navy-800); box-shadow: 0 16px 50px -10px rgba(0,0,0,.35); }
.cta-banner .btn-primary:hover { color: var(--c-navy-800); }
.cta-banner > * { position: relative; }

/* ===== Footer ===== */
.cx-footer {
    background: var(--bg-elev);
    border-top: 1px solid var(--border);
    padding: 4rem 0 2rem;
    margin-top: 5rem;
}
.cx-footer__grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
@media (max-width: 860px) { .cx-footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
@media (max-width: 520px) { .cx-footer__grid { grid-template-columns: 1fr; } }
.cx-footer__brand .cx-logo-stack { margin-bottom: 1rem; }
.cx-footer__brand .cx-logo {
    height: 64px;
    width: auto;
    display: block;
    transition: opacity .35s ease;
}
.cx-footer__brand .cx-logo--dark  { opacity: 0; }
.cx-footer__brand .cx-logo--light { opacity: 1; }
[data-theme="dark"] .cx-footer__brand .cx-logo--light { opacity: 0; }
[data-theme="dark"] .cx-footer__brand .cx-logo--dark  { opacity: 1; }
.cx-footer__brand p { color: var(--text-soft); max-width: 32ch; }
.cx-footer h5 { font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text-mute); margin-bottom: 1rem; }
.cx-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .65rem; }
.cx-footer a { color: var(--text-soft); }
.cx-footer a:hover { color: var(--c-blue-500); }

.newsletter {
    display: flex; gap: .5rem;
    padding: .35rem .35rem .35rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    max-width: 420px;
    margin-top: 1rem;
}
.newsletter input {
    border: none; background: transparent;
    flex: 1; color: var(--text);
    outline: none;
    font: inherit;
    padding: .5rem 0;
}
.newsletter input::placeholder { color: var(--text-mute); }
.newsletter button { padding: .6rem 1.1rem; border-radius: var(--radius-pill); border: 0; background: var(--grad-brand); color: #fff; font-weight: 600; }

.cx-footer__bottom {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 1rem;
    color: var(--text-mute); font-size: .9rem;
}
.cx-socials { display: flex; gap: .6rem; }
.cx-socials a {
    width: 38px; height: 38px; border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--border);
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--text-soft);
    transition: border-color .2s, color .2s, transform .2s;
}
.cx-socials a:hover { color: var(--c-blue-500); border-color: rgba(0,180,255,.4); transform: translateY(-2px); }

/* ===== Page header (sub-pages) ===== */
.page-header {
    position: relative;
    padding: calc(var(--nav-h) + 4rem) 0 3.5rem;
    text-align: center;
    overflow: hidden;
    isolation: isolate;
}
.page-header__inner { position: relative; z-index: 2; max-width: 760px; margin: 0 auto; }

/* ===== Timeline ===== */
.timeline {
    position: relative;
    max-width: 760px;
    margin: 0 auto;
    padding: 1rem 0;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 19px; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--c-blue-500), transparent);
}
.timeline__item {
    display: grid;
    grid-template-columns: 40px 1fr;
    gap: 1.5rem;
    padding: 1rem 0 2rem;
    position: relative;
}
.timeline__dot {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--grad-brand);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: .82rem;
    box-shadow: 0 8px 24px -8px rgba(30,64,175,.45);
}
.timeline__body {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
}
.timeline__body h3 { font-size: 1.1rem; margin-bottom: .3rem; }

/* Team */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}
.team-card {
    text-align: center;
    padding: 2rem 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: transform .25s, border-color .2s, box-shadow .25s;
}
.team-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0,180,255,.35);
    box-shadow: var(--shadow-md);
}
.team-avatar {
    width: 84px; height: 84px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    background: var(--grad-brand);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 1.5rem;
    box-shadow: var(--shadow-glow);
}
.team-card h4 { margin-bottom: .25rem; }
.team-role { color: var(--c-blue-500); font-weight: 600; font-size: .9rem; margin-bottom: .65rem; }

/* Values */
.value-card {
    padding: 1.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: transform .25s, border-color .2s;
}
.value-card:hover { transform: translateY(-4px); border-color: rgba(0,180,255,.35); }
.value-card .icon-wrap {
    width: 48px; height: 48px;
    border-radius: var(--radius-md);
    background: var(--grad-brand-soft);
    color: var(--c-blue-500);
    display: inline-flex; align-items: center; justify-content: center;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
}

/* Portfolio filters */
.filter-bar {
    display: flex; gap: .5rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 3rem;
}
.filter-chip {
    padding: .55rem 1.1rem;
    border-radius: var(--radius-pill);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-soft);
    font-weight: 500; font-size: .92rem;
    cursor: pointer;
    transition: all .2s ease;
}
.filter-chip:hover { color: var(--text); border-color: var(--border-strong); }
.filter-chip.is-active {
    background: var(--grad-brand);
    color: #fff;
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.project-grid {
    display: grid;
    /* auto-fill (not auto-fit) keeps empty grid tracks so a lone filtered card
       stays at its natural column width instead of stretching across the row. */
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    justify-content: start;
}
.project-grid > .project-card { max-width: 460px; }
.is-hidden { display: none !important; }

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 3rem;
    align-items: start;
}
@media (max-width: 920px) { .contact-grid { grid-template-columns: 1fr; gap: 2.25rem; } }
.contact-card {
    padding: 2.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.form-field { display: flex; flex-direction: column; gap: .35rem; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: .85rem; font-weight: 600; color: var(--text-soft); }
.form-field input,
.form-field textarea,
.form-field select {
    padding: .85rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-strong);
    background: var(--bg-elev);
    color: var(--text);
    font: inherit;
    transition: border-color .2s, box-shadow .2s, background .2s;
}
.form-field textarea { min-height: 140px; resize: vertical; }
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    outline: none;
    border-color: var(--c-blue-500);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .15);
}

.office-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}
.office-card {
    padding: 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    transition: transform .2s, border-color .2s;
}
.office-card:hover { transform: translateY(-3px); border-color: rgba(0,180,255,.35); }
.office-card .flag { font-size: 1.6rem; margin-bottom: .5rem; }
.office-card h4 { margin-bottom: .2rem; font-size: 1rem; }
.office-card p { font-size: .88rem; color: var(--text-mute); margin: 0; }

.contact-info { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem; }
.contact-info__item {
    display: flex; gap: .9rem; align-items: flex-start;
    padding: 1rem 1.1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}
.contact-info__item .icon-wrap {
    width: 40px; height: 40px; flex: 0 0 auto;
    border-radius: var(--radius-sm);
    background: var(--grad-brand-soft);
    color: var(--c-blue-500);
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--border);
}
.contact-info__item div { font-size: .92rem; }
.contact-info__item strong { display: block; color: var(--text); margin-bottom: .15rem; font-weight: 600; }

.map-wrap {
    overflow: hidden;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--surface);
    height: 360px;
}
.map-wrap iframe { width: 100%; height: 100%; border: 0; filter: grayscale(.2) contrast(.95); }
[data-theme="dark"] .map-wrap iframe { filter: invert(.92) hue-rotate(180deg) grayscale(.3) contrast(.85); }

/* FAQ */
.faq {
    max-width: 760px;
    margin: 0 auto;
    display: flex; flex-direction: column;
    gap: .75rem;
}
.faq__item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.faq__q {
    width: 100%;
    background: transparent;
    border: 0;
    text-align: left;
    padding: 1.25rem 1.5rem;
    font-weight: 600; color: var(--text);
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem;
    font-size: 1rem;
}
.faq__q .chev { transition: transform .25s ease; color: var(--c-blue-500); }
.faq__item.is-open .chev { transform: rotate(180deg); }
.faq__a {
    max-height: 0; overflow: hidden;
    transition: max-height .35s ease;
    padding: 0 1.5rem;
    color: var(--text-soft);
}
.faq__item.is-open .faq__a { padding: 0 1.5rem 1.25rem; }

/* Reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .8s cubic-bezier(.2,.8,.2,1), transform .8s cubic-bezier(.2,.8,.2,1);
}
.reveal.is-in { opacity: 1; transform: translateY(0); }

/* Back to top */
.back-to-top {
    position: fixed; bottom: 1.5rem; right: 1.5rem;
    width: 46px; height: 46px;
    border-radius: 50%; border: 0;
    background: var(--grad-brand);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-glow);
    opacity: 0; pointer-events: none;
    transform: translateY(20px) scale(.9);
    transition: opacity .25s ease, transform .25s ease;
    z-index: 950;
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }
.back-to-top:hover { transform: translateY(-3px) scale(1.05); }

/* Messages */
.cx-flash {
    position: fixed; top: calc(var(--nav-h) + 1rem); left: 50%;
    transform: translateX(-50%);
    z-index: 1100;
    padding: .9rem 1.25rem;
    border-radius: var(--radius-md);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    display: flex; align-items: center; gap: .65rem;
    max-width: 90vw;
}
.cx-flash.success { border-color: rgba(34,197,94,.35); color: #15803d; }
.cx-flash.error { border-color: rgba(239,68,68,.35); color: #b91c1c; }
[data-theme="dark"] .cx-flash.success { color: #4ade80; }
[data-theme="dark"] .cx-flash.error { color: #f87171; }

/* Utility */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
@media (max-width: 760px) { .grid-2 { grid-template-columns: 1fr; } }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mt-md { margin-top: 1.5rem; }
.mt-lg { margin-top: 3rem; }

/* =====================================================================
   Animated site-wide background (AI-universe style)
   Layers (bottom → top): canvas particles → aurora orbs → grid → beams → noise
   All layers sit behind page content and don't capture pointer events.
   ===================================================================== */

.cx-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    background: var(--bg);
    transition: background-color .4s ease;
}
.cx-bg__canvas {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    display: block;
    opacity: 1;
}
[data-theme="dark"] .cx-bg__canvas { opacity: 1; }

/* Aurora orbs — animated radial gradients drifting around */
.cx-bg__aurora {
    position: absolute; inset: 0;
    filter: blur(80px) saturate(160%);
    mix-blend-mode: multiply;
    opacity: .55;
}
[data-theme="dark"] .cx-bg__aurora {
    mix-blend-mode: screen;
    filter: blur(80px) saturate(150%);
    opacity: .95;
}
.cx-bg__aurora-orb {
    position: absolute;
    border-radius: 50%;
    will-change: transform;
}
.cx-bg__aurora-orb--1 {
    width: 75vmax; height: 75vmax; top: -28vmax; left: -18vmax;
    background: radial-gradient(circle at 50% 50%, #1E40AF 0%, rgba(30,64,175,.35) 35%, transparent 70%);
    animation: cx-aurora-1 22s ease-in-out infinite;
}
.cx-bg__aurora-orb--2 {
    width: 70vmax; height: 70vmax; top: 8vmax; right: -22vmax;
    background: radial-gradient(circle at 50% 50%, #00B4FF 0%, rgba(0,180,255,.4) 35%, transparent 70%);
    animation: cx-aurora-2 26s ease-in-out infinite;
}
.cx-bg__aurora-orb--3 {
    width: 65vmax; height: 65vmax; bottom: -18vmax; left: 22vmax;
    background: radial-gradient(circle at 50% 50%, #06E5F5 0%, rgba(6,229,245,.4) 35%, transparent 70%);
    animation: cx-aurora-3 30s ease-in-out infinite;
}
.cx-bg__aurora-orb--4 {
    width: 60vmax; height: 60vmax; bottom: -14vmax; right: 14vmax;
    background: radial-gradient(circle at 50% 50%, #2563EB 0%, rgba(37,99,235,.35) 35%, transparent 70%);
    animation: cx-aurora-4 28s ease-in-out infinite;
}
@keyframes cx-aurora-1 {
    0%,100% { transform: translate3d(0,0,0) scale(1); }
    50%     { transform: translate3d(14vmax, 10vmax, 0) scale(1.25); }
}
@keyframes cx-aurora-2 {
    0%,100% { transform: translate3d(0,0,0) scale(1); }
    50%     { transform: translate3d(-16vmax, 12vmax, 0) scale(1.2); }
}
@keyframes cx-aurora-3 {
    0%,100% { transform: translate3d(0,0,0) scale(1); }
    50%     { transform: translate3d(-12vmax, -16vmax, 0) scale(1.28); }
}
@keyframes cx-aurora-4 {
    0%,100% { transform: translate3d(0,0,0) scale(1); }
    50%     { transform: translate3d(14vmax, -12vmax, 0) scale(1.22); }
}

/* Drifting grid */
.cx-bg__grid {
    position: absolute; inset: -2px;
    background-image:
        linear-gradient(rgba(30, 64, 175, .14) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 64, 175, .14) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse at 50% 40%, #000 35%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 40%, #000 35%, transparent 85%);
    opacity: 1;
    animation: cx-grid-drift 60s linear infinite;
}
[data-theme="dark"] .cx-bg__grid {
    background-image:
        linear-gradient(rgba(103, 232, 249, .12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(103, 232, 249, .12) 1px, transparent 1px);
    opacity: .85;
}
@keyframes cx-grid-drift {
    from { background-position: 0 0, 0 0; }
    to   { background-position: 640px 640px, 640px 640px; }
}

/* Diagonal light beams */
.cx-bg__beams {
    position: absolute; inset: 0;
    overflow: hidden;
    mix-blend-mode: multiply;
    opacity: .7;
}
[data-theme="dark"] .cx-bg__beams {
    mix-blend-mode: screen;
    opacity: .8;
}
.cx-bg__beam {
    position: absolute;
    top: -50%; left: 50%;
    width: 340px; height: 240vh;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,180,255,.7) 50%, transparent 100%);
    transform-origin: top center;
    filter: blur(50px);
    will-change: transform, opacity;
}
.cx-bg__beam--1 { transform: translateX(-50%) rotate(18deg); animation: cx-beam 14s ease-in-out infinite; }
.cx-bg__beam--2 { transform: translateX(-50%) rotate(-22deg); left: 25%; animation: cx-beam 18s ease-in-out infinite; animation-delay: -5s; background: linear-gradient(to bottom, transparent, rgba(30,64,175,.65), transparent); }
.cx-bg__beam--3 { transform: translateX(-50%) rotate(28deg); left: 78%; animation: cx-beam 22s ease-in-out infinite; animation-delay: -9s; background: linear-gradient(to bottom, transparent, rgba(6,229,245,.6), transparent); }
@keyframes cx-beam {
    0%,100% { opacity: .35; }
    50%     { opacity: 1; }
}

/* Subtle film grain (CSS-only SVG noise) */
.cx-bg__noise {
    position: absolute; inset: 0;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.55 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
    opacity: .035;
    mix-blend-mode: overlay;
}
[data-theme="dark"] .cx-bg__noise { opacity: .06; }

/* Body becomes transparent so cx-bg can show through */
body { background: transparent; }

/* Make sections and chrome paint above the animated background */
main, .cx-footer { position: relative; z-index: 1; }
.section, .page-header, .hero { position: relative; z-index: 1; }
.cx-flash { z-index: 1100; }

/* Surfaces gain a translucent feel for depth */
.cx-nav {
    background: color-mix(in srgb, var(--bg) 60%, transparent);
}
.cx-nav.is-scrolled {
    background: color-mix(in srgb, var(--bg-elev) 72%, transparent);
}

/* Logo wordmark a touch lighter in dark mode to remain legible
   (this rule reaches inside an inline-SVG only; for <img> it's harmless) */
[data-theme="dark"] .cx-logo-word { fill: #EAF1FB; }
[data-theme="dark"] .cx-logo-tagline { fill: #B6C2DA; }

/* =====================================================================
   Language switcher (navbar dropdown)
   ===================================================================== */
.cx-lang { position: relative; }
.cx-lang__btn {
    display: inline-flex; align-items: center; gap: .35rem;
    height: 40px; padding: 0 .7rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font-weight: 600; font-size: .85rem;
    cursor: pointer;
    transition: border-color .2s, background .2s, color .2s;
}
.cx-lang__btn:hover { border-color: var(--c-blue-500); color: var(--c-blue-500); }
.cx-lang__code { letter-spacing: .06em; font-weight: 700; }
.cx-lang__short {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 22px;
    padding: 0 .4rem;
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .06em;
    color: var(--text-mute);
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
}
.cx-lang__item.is-active .cx-lang__short {
    color: var(--c-blue-500);
    background: var(--grad-brand-soft);
    border-color: rgba(0, 180, 255, .35);
}
.cx-lang__menu {
    position: absolute; top: calc(100% + 8px); right: 0;
    list-style: none; margin: 0; padding: .35rem;
    min-width: 180px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0; pointer-events: none;
    transform: translateY(-6px) scale(.98);
    transform-origin: top right;
    transition: opacity .2s ease, transform .2s ease;
    z-index: 1050;
}
[dir="rtl"] .cx-lang__menu { right: auto; left: 0; transform-origin: top left; }
.cx-lang.is-open .cx-lang__menu { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }
.cx-lang__form { margin: 0; }
.cx-lang__item {
    display: flex; align-items: center; gap: .65rem;
    width: 100%;
    background: transparent; border: 0;
    padding: .55rem .8rem;
    border-radius: var(--radius-sm);
    color: var(--text);
    font: inherit; font-size: .9rem;
    text-align: left;
    cursor: pointer;
    transition: background .15s, color .15s;
}
[dir="rtl"] .cx-lang__item { text-align: right; }
.cx-lang__item:hover { background: var(--bg-soft); color: var(--c-blue-500); }
.cx-lang__item.is-active {
    background: var(--grad-brand-soft);
    color: var(--c-blue-500);
    font-weight: 700;
}
@media (max-width: 960px) {
    .cx-lang__btn { padding: 0 .65rem; }
}

/* =====================================================================
   RTL & Arabic typography
   ===================================================================== */
html[dir="rtl"] body,
html[lang="ar"] body {
    font-family: 'Cairo', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}
html[dir="rtl"] h1, html[dir="rtl"] h2, html[dir="rtl"] h3,
html[dir="rtl"] h4, html[dir="rtl"] h5,
html[lang="ar"] h1, html[lang="ar"] h2, html[lang="ar"] h3,
html[lang="ar"] h4, html[lang="ar"] h5 {
    font-family: 'Cairo', 'Inter', system-ui, sans-serif;
    letter-spacing: 0;
}

/* Mirror directional UI for RTL */
[dir="rtl"] .btn-arrow svg { transform: scaleX(-1); }
[dir="rtl"] .btn-arrow:hover svg { transform: scaleX(-1) translateX(4px); }
[dir="rtl"] .testimonial { text-align: right; }
[dir="rtl"] .timeline::before { left: auto; right: 19px; }
[dir="rtl"] .timeline__item { grid-template-columns: 1fr 40px; }
[dir="rtl"] .timeline__dot { order: 2; }
[dir="rtl"] .timeline__body { order: 1; }
[dir="rtl"] .faq__q { text-align: right; }
[dir="rtl"] .form-field { text-align: right; }
[dir="rtl"] .cx-nav__link.is-active::after { left: 50%; }
[dir="rtl"] .project-card__category { right: auto; }
[dir="rtl"] .back-to-top { right: auto; left: 1.5rem; }
[dir="rtl"] .cx-flash { direction: rtl; }

/* In RTL, the hero "speech bubble"-style chats inside the chat SVG
   already look right since they're images; nothing to mirror. */

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        transition-duration: .01ms !important;
    }
    .cx-bg__canvas { display: none; }
}