/* ──────────────────────────────────────────
           DESIGN TOKENS  — Warm Monochrome
        ────────────────────────────────────────── */
:root {
    /* Core dark palette extracted from sample.png (Aerium dark mode) */
    --bg: #090a0c;
    --bg-raised: #121316;
    --bg-card: #16171b;
    --bg-card-hi: #1d1e24;
    --border: rgba(255, 255, 255, 0.08);
    --border-hi: rgba(255, 255, 255, 0.18);

    --text: #ffffff;
    --text-soft: #9499a3;
    --text-muted: #5a606c;

    --accent: #ffffff;
    --accent-dim: rgba(255, 255, 255, 0.06);

    --radius-xl: 18px;
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 5px;
    --radius-pill: 100px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.6);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.7);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.85);

    --f-sans: 'Inter', system-ui, sans-serif;
    --f-serif: 'Playfair Display', Georgia, serif;
    --f-mono: 'JetBrains Mono', monospace;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ──────────────────────────────────────────
           RESET & BASE
        ────────────────────────────────────────── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--f-sans);
    line-height: 1.65;
    overflow-x: hidden;
    position: relative;
}

/* Subtle grain texture overlay — key detail in sample.png */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 1000;
    pointer-events: none;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}

/* ── Global Seamless Page Ambient Grid & White Spotlight Lighting System ── */
.page-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* Precise Square Grid Lines with organic light spotlight masking */
.bg-grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.10) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.10) 1px, transparent 1px);
    background-size: 56px 56px;
    background-position: center top;

    mask-image:
        radial-gradient(circle 950px at 50% 320px, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.40) 60%, transparent 90%),
        radial-gradient(circle 750px at 15% 750px, rgba(0, 0, 0, 0.90) 0%, rgba(0, 0, 0, 0.30) 55%, transparent 85%),
        radial-gradient(circle 950px at 50% 1350px, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.40) 60%, transparent 90%),
        radial-gradient(circle 800px at 85% 1950px, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.35) 55%, transparent 85%),
        radial-gradient(circle 1000px at 50% 2450px, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.40) 60%, transparent 90%),
        radial-gradient(circle 850px at 30% 3100px, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.35) 60%, transparent 88%);
    -webkit-mask-image:
        radial-gradient(circle 950px at 50% 320px, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.40) 60%, transparent 90%),
        radial-gradient(circle 750px at 15% 750px, rgba(0, 0, 0, 0.90) 0%, rgba(0, 0, 0, 0.30) 55%, transparent 85%),
        radial-gradient(circle 950px at 50% 1350px, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.40) 60%, transparent 90%),
        radial-gradient(circle 800px at 85% 1950px, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.35) 55%, transparent 85%),
        radial-gradient(circle 1000px at 50% 2450px, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.40) 60%, transparent 90%),
        radial-gradient(circle 850px at 30% 3100px, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.35) 60%, transparent 88%);
}

/* Luminous Top Ambient White Spotlight Glow — Aerium signature illumination on darkness */
.bg-ambient-glow {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 1300px;
    height: 950px;
    background: radial-gradient(ellipse 70% 55% at 50% 30%,
            rgba(255, 255, 255, 0.16) 0%,
            rgba(180, 195, 215, 0.05) 50%,
            transparent 82%);
    filter: blur(40px);
    pointer-events: none;
}

/* ──────────────────────────────────────────
           LAYOUT
        ────────────────────────────────────────── */
.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 32px;
}

.container-sm {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 32px;
}

code {
    font-family: var(--f-mono);
    font-size: 0.85em;
    background: var(--bg-card);
    color: var(--accent);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

/* ──────────────────────────────────────────
           SCROLL REVEAL
        ────────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}

.reveal.in {
    opacity: 1;
    transform: none;
}

.reveal-delay-1 {
    transition-delay: 0.10s;
}

.reveal-delay-2 {
    transition-delay: 0.20s;
}

.reveal-delay-3 {
    transition-delay: 0.30s;
}

/* ──────────────────────────────────────────
           NAVBAR
        ────────────────────────────────────────── */
.nav {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 500;
    width: calc(100% - 48px);
    max-width: 1080px;
    background: rgba(16, 17, 21, 0.82);
    backdrop-filter: blur(24px) saturate(160%);
    -webkit-backdrop-filter: blur(24px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 100px;
    box-shadow:
        0 12px 36px rgba(0, 0, 0, 0.65),
        inset 0 1px 0 rgba(255, 255, 255, 0.12);
    transition: all 0.3s var(--ease-out);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 54px;
    padding: 0 8px 0 22px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    flex-shrink: 0;
}

.nav-brand-img {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-md);
    object-fit: contain;
}

.nav-brand-name {
    font-size: 1.02rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    color: var(--text-soft);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Mobile Nav Toggle Button */
.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
}

.nav-toggle:hover,
.nav-toggle:active {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Mobile Nav Drawer */
.nav-mobile-drawer {
    display: none;
    width: 100%;
    padding: 10px 14px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    animation: navDrawerIn 0.25s var(--ease-out);
}

.nav-mobile-drawer.open {
    display: block;
}

@keyframes navDrawerIn {
    0% { opacity: 0; transform: translateY(-6px); }
    100% { opacity: 1; transform: translateY(0); }
}

.nav-mobile-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-mobile-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    border-radius: var(--radius-md);
    color: var(--text-soft);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.2s ease;
    background: rgba(255, 255, 255, 0.02);
}

.nav-mobile-link:hover,
.nav-mobile-link:active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
}

/* ──────────────────────────────────────────
           BUTTONS
        ────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    font-family: var(--f-sans);
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.22s var(--ease-out);
    white-space: nowrap;
}

.btn-solid {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

.btn-solid:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-soft);
    border-color: var(--border-hi);
}

.btn-outline:hover {
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 7px 16px;
    font-size: 0.82rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* (Hero styles are scoped in Data/hero.css) */


/* ──────────────────────────────────────────
           SECTION SCAFFOLD
        ────────────────────────────────────────── */
.section {
    padding: 100px 0;
}

.section-label {
    display: block;
    font-family: var(--f-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.section-h2 {
    font-size: clamp(1.8rem, 3.2vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.12;
    margin-bottom: 16px;
}

.section-h2 em {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--text-soft);
}

.section-p {
    color: var(--text-soft);
    font-size: 1rem;
    max-width: 520px;
    line-height: 1.7;
}

.section-head-center {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-head-center .section-p {
    margin-left: auto;
    margin-right: auto;
}

/* ──────────────────────────────────────────
           FEATURES — sample.png bento style
        ────────────────────────────────────────── */
.bento {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(140px, auto);
    gap: 10px;
}

.bento-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.bento-card:hover {
    border-color: var(--border-hi);
    background: var(--bg-card-hi);
}

/* Thin top accent on hover */
.bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bento-card:hover::before {
    opacity: 1;
}

.bc-1 {
    grid-column: span 5;
    grid-row: span 2;
}

.bc-2 {
    grid-column: span 4;
}

.bc-3 {
    grid-column: span 3;
}

.bc-4 {
    grid-column: span 4;
}

.bc-5 {
    grid-column: span 3;
}

.bc-6 {
    grid-column: span 7;
}

@media (max-width: 960px) {
    .bento {
        grid-template-columns: repeat(6, 1fr);
    }

    .bc-1 {
        grid-column: span 6;
        grid-row: auto;
    }

    .bc-2 {
        grid-column: span 3;
    }

    .bc-3 {
        grid-column: span 3;
    }

    .bc-4 {
        grid-column: span 3;
    }

    .bc-5 {
        grid-column: span 3;
    }

    .bc-6 {
        grid-column: span 6;
    }
}

@media (max-width: 600px) {
    .bento {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .bento-card {
        grid-column: span 1 !important;
        grid-row: auto !important;
        padding: 20px 18px;
        border-radius: var(--radius-lg);
    }

    .bc-title {
        font-size: 1rem;
    }

    .bc-text {
        font-size: 0.85rem;
    }

    .bc-big-num {
        font-size: 2.4rem;
    }
}

.bc-icon {
    width: 44px;
    height: 44px;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-soft);
    margin-bottom: 20px;
}

.bc-title {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    margin-bottom: 8px;
}

.bc-text {
    color: var(--text-soft);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* Large number — as in sample.png feature callout */
.bc-big-num {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.06em;
    color: var(--text);
    margin-bottom: 4px;
}

.bc-big-label {
    color: var(--text-muted);
    font-size: 0.82rem;
}

/* ──────────────────────────────────────────
           UPDATES & SHOWCASE — Laptop Frame & Radar Rings
        ────────────────────────────────────────── */
.updates-showcase-container {
    position: relative;
    margin-top: 20px;
    padding: 70px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Background Concentric Radar Rings — Bright, Luminous Waves */
.radar-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1150px;
    height: 1150px;
    pointer-events: none;
    z-index: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.radar-rings .ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.04), inset 0 0 20px rgba(255, 255, 255, 0.02);
    animation: wavePulse 6s ease-in-out infinite alternate;
}

.radar-rings .ring-1 {
    width: 420px;
    height: 420px;
    border-color: rgba(255, 255, 255, 0.22);
    animation-delay: 0s;
}

.radar-rings .ring-2 {
    width: 600px;
    height: 600px;
    border-color: rgba(255, 255, 255, 0.16);
    animation-delay: 1.2s;
}

.radar-rings .ring-3 {
    width: 780px;
    height: 780px;
    border-color: rgba(255, 255, 255, 0.12);
    animation-delay: 2.4s;
}

.radar-rings .ring-4 {
    width: 960px;
    height: 960px;
    border-color: rgba(255, 255, 255, 0.08);
    animation-delay: 3.6s;
}

.radar-rings .ring-5 {
    width: 1140px;
    height: 1140px;
    border-color: rgba(255, 255, 255, 0.04);
    animation-delay: 4.8s;
}

@keyframes wavePulse {
    0% {
        opacity: 0.65;
        transform: scale(0.985);
    }

    100% {
        opacity: 1;
        transform: scale(1.015);
    }
}

/* Updates Layout */
.updates-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(180px, 1fr) minmax(500px, 680px) minmax(180px, 1fr);
    align-items: center;
    gap: 28px;
    width: 100%;
}

.updates-col {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.updates-col-left {
    align-items: flex-end;
}

.updates-col-right {
    align-items: flex-start;
}

/* Compact Floating Node Pill */
.update-node {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(18, 19, 23, 0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    transition: transform 0.25s var(--ease-out), border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
    white-space: nowrap;
}

.update-node:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(28, 30, 38, 0.95);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.update-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
}

.update-title {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: rgba(255, 255, 255, 0.95);
}

/* Central Laptop Frame Mockup — Increased Size */
.laptop-wrap {
    position: relative;
    width: 100%;
    max-width: 680px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: updatesLaptopEnter 1.1s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.2s;
}

@keyframes updatesLaptopEnter {
    0%   { opacity: 0; transform: translateY(50px) scale(0.96); }
    100% { opacity: 1; transform: translateY(0px)  scale(1);    }
}

.laptop-frame {
    width: 100%;
    background: linear-gradient(145deg, #2b2d35 0%, #15161b 100%);
    border: 1.5px solid rgba(255, 255, 255, 0.16);
    border-radius: 16px 16px 3px 3px;
    padding: 10px 10px 12px 10px;
    position: relative;
    box-shadow:
        0 30px 80px -10px rgba(0, 0, 0, 0.95),
        0 15px 30px -5px rgba(0, 0, 0, 0.65),
        inset 0 1px 1px rgba(255, 255, 255, 0.25);
}

.laptop-camera {
    position: absolute;
    top: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 5px;
    height: 5px;
    background: #090a0c;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.laptop-screen {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000000;
    border-radius: 6px;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.8);
}

.laptop-img {
    width: 100%;
    height: 100%;
    object-fit: fill;
    display: block;
}

.screen-shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.07) 0%, rgba(255, 255, 255, 0.01) 40%, transparent 65%);
    pointer-events: none;
}

.laptop-base {
    width: 108%;
    height: 17px;
    background: linear-gradient(180deg, #3a3d47 0%, #1a1b20 70%, #111216 100%);
    border-radius: 2px 2px 16px 16px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-top: none;
    position: relative;
    margin-top: -1px;
    box-shadow: 0 5px 16px rgba(0, 0, 0, 0.65);
}

.laptop-notch {
    width: 72px;
    height: 6px;
    background: #0b0c0e;
    border-radius: 0 0 5px 5px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-top: none;
}

.laptop-shadow {
    width: 100%;
    height: 24px;
    background: radial-gradient(ellipse 65% 50% at 50% 20%, rgba(0, 0, 0, 0.9) 0%, transparent 80%);
    margin-top: 2px;
}

/* Responsive Updates Layout */
@media (max-width: 992px) {
    .updates-showcase-container {
        padding: 36px 0 44px;
        overflow: hidden;
    }

    .updates-layout {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .laptop-wrap {
        max-width: 580px;
        order: -1;
    }

    .updates-col {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
        width: 100%;
        max-width: 680px;
        margin: 0 auto;
    }

    .updates-col-left,
    .updates-col-right {
        align-items: stretch;
    }

    .update-node {
        width: 100%;
        justify-content: flex-start;
        padding: 9px 14px;
        white-space: normal;
    }
}

@media (max-width: 768px) {
    .radar-rings {
        transform: translate(-50%, -50%) scale(0.60);
        opacity: 0.7;
    }

    .updates-col {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }
}

@media (max-width: 520px) {
    .radar-rings {
        transform: translate(-50%, -50%) scale(0.42);
        opacity: 0.45;
    }

    .updates-col {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .update-node {
        padding: 8px 12px;
        border-radius: var(--radius-md);
    }

    .update-title {
        font-size: 0.82rem;
    }

    .update-icon {
        width: 28px;
        height: 28px;
    }

    .laptop-frame {
        padding: 6px 6px 8px 6px;
        border-radius: 10px 10px 2px 2px;
    }

    .laptop-base {
        height: 11px;
        width: 103%;
        border-radius: 1px 1px 10px 10px;
    }

    .laptop-notch {
        width: 44px;
        height: 4px;
    }
}

/* ──────────────────────────────────────────
           DOWNLOAD
        ────────────────────────────────────────── */
.dl-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

@media (max-width: 900px) {
    .dl-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}

@media (max-width: 540px) {
    .dl-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

.dl-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px 22px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: border-color 0.25s ease, background 0.25s ease;
}

.dl-card:hover {
    border-color: var(--border-hi);
    background: var(--bg-card-hi);
}

.dl-icon {
    width: 46px;
    height: 46px;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-soft);
    margin-bottom: 20px;
}

.dl-name {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.015em;
    margin-bottom: 4px;
}

.dl-sub {
    color: var(--text-muted);
    font-size: 0.80rem;
    margin-bottom: 22px;
    line-height: 1.5;
}

/* ──────────────────────────────────────────
           SETUP STEPS  — numbered like sample.png
        ────────────────────────────────────────── */
.steps-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

@media (max-width: 860px) {
    .steps-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

.step-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px;
    transition: border-color 0.25s ease;
}

.step-box:hover {
    border-color: var(--border-hi);
}

.step-n {
    font-family: var(--f-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    display: inline-block;
    padding: 3px 9px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.step-title {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    margin-bottom: 10px;
}

.step-desc {
    color: var(--text-soft);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* ──────────────────────────────────────────
           DIVIDER
        ────────────────────────────────────────── */
.hr {
    height: 1px;
    background: var(--border);
}

/* ──────────────────────────────────────────
           FOOTER
        ────────────────────────────────────────── */
.footer {
    padding: 44px 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-brand img {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.84rem;
}

.footer-copy a {
    color: var(--text-soft);
    text-decoration: none;
}

.footer-copy a:hover {
    color: var(--text);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.84rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text);
}

/* ──────────────────────────────────────────
           GLOBAL RESPONSIVE UTILITIES
           (Android, Tablets, Desktops)
        ────────────────────────────────────────── */
@media (max-width: 860px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav {
        width: calc(100% - 24px);
        top: 12px;
        border-radius: 24px;
    }

    .section {
        padding: 64px 0;
    }

    .section-head-center {
        margin-bottom: 40px;
    }
}

@media (max-width: 640px) {
    .footer {
        padding: 32px 0 40px;
    }

    .footer-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 18px;
        justify-content: center;
    }

    .footer-brand {
        flex-direction: column;
        gap: 8px;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 14px 20px;
    }

    .dl-card {
        padding: 20px 18px;
        border-radius: var(--radius-lg);
    }

    .dl-icon {
        width: 40px;
        height: 40px;
        margin-bottom: 14px;
    }

    .dl-name {
        font-size: 1rem;
    }

    .dl-sub {
        font-size: 0.80rem;
        margin-bottom: 16px;
    }

    .step-box {
        padding: 22px 18px;
        border-radius: var(--radius-lg);
    }

    .step-n {
        margin-bottom: 14px;
    }

    .step-title {
        font-size: 1rem;
    }

    .step-desc {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 14px;
    }

    .container-sm {
        padding: 0 14px;
    }

    .nav {
        width: calc(100% - 16px);
        top: 8px;
        border-radius: 20px;
    }

    .nav-inner {
        height: 48px;
        padding: 0 6px 0 12px;
    }

    .nav-brand-img {
        width: 24px;
        height: 24px;
    }

    .nav-brand-name {
        font-size: 0.90rem;
    }

    .nav-gh-text {
        display: none;
    }

    .nav-gh-btn {
        padding: 6px 9px;
    }

    .nav-cta-btn {
        padding: 6px 12px;
        font-size: 0.78rem;
    }

    .section {
        padding: 48px 0;
    }

    .section-head-center {
        margin-bottom: 30px;
    }

    .section-h2 {
        font-size: clamp(1.45rem, 6vw, 1.85rem);
    }

    .section-p {
        font-size: 0.88rem;
    }
}

@media (max-width: 360px) {
    .container {
        padding: 0 10px;
    }

    .nav-brand-name {
        font-size: 0.82rem;
    }

    .nav-actions {
        gap: 4px;
    }

    .nav-cta-btn {
        padding: 5px 10px;
        font-size: 0.74rem;
    }
}