/* ==========================================================================
   INSTARMONY AI LAB - CORE DESIGN SYSTEM
   Deep Space Theme (Orbit / Nebula / Obsidian / Cyan Resonance)
   ========================================================================== */

:root {
    /* Color Palette - Deep Space Cosmic */
    --void: #07060d;
    --void-subtle: #0d0b18;
    --void-card: rgba(19, 16, 36, 0.75);
    --void-card-hover: rgba(28, 24, 52, 0.9);
    --void-border: rgba(255, 255, 255, 0.09);
    --void-border-glow: rgba(124, 58, 237, 0.4);

    /* Brand Accents */
    --nebula: #7c3aed;
    --nebula-light: #9d5cf7;
    --symbio: #ec4899;
    --symbio-light: #f472b6;
    --cyan: #06b6d4;
    --cyan-light: #22d3ee;
    --ember: #f59e0b;
    --mint: #86B8AD;
    --mint-glow: rgba(134, 184, 173, 0.35);

    /* Typography Colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-glow: #ffffff;

    /* Gradients */
    --grad-nebula: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
    --grad-cyan-nebula: linear-gradient(135deg, #06b6d4 0%, #7c3aed 100%);
    --grad-ember-symbio: linear-gradient(135deg, #f59e0b 0%, #ec4899 100%);
    --grad-text: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #94a3b8 100%);
    --grad-brand-text: linear-gradient(135deg, #c084fc 0%, #f472b6 50%, #38bdf8 100%);

    /* Typography */
    --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Layout & Spacing */
    --max-width: 1240px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.2s var(--ease-out);
    --transition-normal: 0.35s var(--ease-out);
    --transition-slow: 0.6s var(--ease-out);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--void);
    color: var(--text-primary);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    line-height: 1.65;
    background-color: var(--void);
}

/* ── Ambient Background Canvas & Grid ── */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.85;
}

.bg-ambient-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.bg-grid {
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 80%);
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(130px);
    opacity: 0.28;
    pointer-events: none;
    animation: orbFloat 22s ease-in-out infinite alternate;
}

.orb-1 {
    top: -15%;
    left: 20%;
    width: 550px;
    height: 550px;
    background: radial-gradient(circle, var(--nebula) 0%, transparent 70%);
}

.orb-2 {
    top: 35%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--symbio) 0%, transparent 70%);
    animation-delay: -7s;
}

.orb-3 {
    top: 70%;
    left: 5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--cyan) 0%, transparent 70%);
    animation-delay: -14s;
}

@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(60px, 40px) scale(1.12); }
    100% { transform: translate(-40px, 80px) scale(0.95); }
}

/* ── Global Layout Containers ── */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 28px;
    padding-right: 28px;
    position: relative;
    z-index: 1;
}

/* ── Typography & Headings ── */
h1, h2, h3, h4, .font-display {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.2;
    color: var(--text-primary);
}

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

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

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

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--cyan-light);
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.22);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-tag-pulse {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--cyan);
    box-shadow: 0 0 10px var(--cyan);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.7; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.7; }
}

.section-header {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 64px auto;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    margin-bottom: 18px;
}

.section-subtitle {
    font-size: 1.08rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ── Buttons & Action Elements ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 13px 26px;
    border-radius: var(--radius-md);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    outline: none;
    position: relative;
    white-space: nowrap;
}

.btn-primary {
    background: var(--grad-nebula);
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(124, 58, 237, 0.55), 0 0 20px rgba(236, 72, 153, 0.3);
    color: #ffffff;
}

.btn-cyan {
    background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.3);
}

.btn-cyan:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(6, 182, 212, 0.5);
    color: #ffffff;
}

.btn-glass {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--void-border);
    backdrop-filter: blur(12px);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    color: #ffffff;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
}

/* ── Top Navigation Bar ── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(7, 6, 13, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.nav-logo-img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 16px rgba(124, 58, 237, 0.4);
}

.nav-brand-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.01em;
}

.nav-brand-badge {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    background: rgba(124, 58, 237, 0.2);
    color: var(--nebula-light);
    border: 1px solid rgba(124, 58, 237, 0.4);
    padding: 2px 7px;
    border-radius: 6px;
    letter-spacing: 0.05em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-item a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.nav-item a.active {
    color: var(--text-primary);
    font-weight: 600;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-switch-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 7px 12px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-switch-btn:hover {
    background: rgba(124, 58, 237, 0.2);
    border-color: rgba(124, 58, 237, 0.4);
    color: #ffffff;
}

.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    margin: 5px 0;
    transition: all var(--transition-fast);
}

/* ── Hero Section ── */
.hero {
    min-height: 92vh;
    padding-top: 150px;
    padding-bottom: 80px;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 56px;
    align-items: center;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(124, 58, 237, 0.12);
    border: 1px solid rgba(124, 58, 237, 0.3);
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: #e2e8f0;
    margin-bottom: 24px;
}

.hero-tag-glow {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--symbio);
    box-shadow: 0 0 12px var(--symbio);
}

.hero-title {
    font-size: clamp(2.5rem, 4.8vw, 3.8rem);
    line-height: 1.12;
    margin-bottom: 24px;
    letter-spacing: -0.035em;
}

.hero-desc {
    font-size: 1.18rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 36px;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.trust-item {
    display: flex;
    flex-direction: column;
}

.trust-val {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.trust-lbl {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* Hero Visual / Card Stage */
.hero-visual {
    position: relative;
}

.hero-visual-card {
    background: var(--void-card);
    border: 1px solid var(--void-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(20px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 40px rgba(124, 58, 237, 0.15);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-normal);
}

.hero-visual-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--nebula-light), var(--symbio), transparent);
}

.window-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.window-dots {
    display: flex;
    gap: 6px;
}

.window-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
}

.window-dot:nth-child(1) { background: #ef4444; }
.window-dot:nth-child(2) { background: #f59e0b; }
.window-dot:nth-child(3) { background: #10b981; }

.window-title {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
}

.hero-img-wrap {
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    background: #000;
}

.hero-img-wrap img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.8s var(--ease-out);
}

.hero-visual-card:hover .hero-img-wrap img {
    transform: scale(1.03);
}

.hero-float-badge {
    position: absolute;
    bottom: -16px;
    right: -16px;
    background: rgba(13, 11, 24, 0.92);
    border: 1px solid var(--void-border-glow);
    backdrop-filter: blur(16px);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
    animation: floatSlow 6s ease-in-out infinite;
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.float-badge-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--grad-nebula);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.float-badge-text {
    display: flex;
    flex-direction: column;
}

.float-badge-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
}

.float-badge-sub {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

/* ── Flagship Section: Eidolon ── */
.flagship-section {
    padding: 110px 0;
    position: relative;
}

.flagship-card {
    background: linear-gradient(145deg, rgba(23, 19, 45, 0.8) 0%, rgba(13, 11, 24, 0.95) 100%);
    border: 1px solid rgba(124, 58, 237, 0.35);
    border-radius: var(--radius-xl);
    padding: 56px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.7), 0 0 50px rgba(124, 58, 237, 0.12);
}

.flagship-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.flagship-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.flagship-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.flagship-tag {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    background: rgba(236, 72, 153, 0.15);
    color: var(--symbio-light);
    border: 1px solid rgba(236, 72, 153, 0.3);
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.flagship-version {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
}

.flagship-title {
    font-size: clamp(2.2rem, 3.8vw, 3rem);
    margin-bottom: 20px;
    line-height: 1.15;
}

.flagship-desc {
    font-size: 1.08rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

.flagship-quote {
    border-left: 3px solid var(--symbio);
    padding: 6px 0 6px 20px;
    margin: 0 0 32px 0;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-primary);
    font-style: italic;
}

.flagship-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 36px;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.highlight-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cyan-light);
    flex-shrink: 0;
}

.highlight-text h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.highlight-text p {
    font-size: 0.84rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.flagship-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.flagship-preview-wrap {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(124, 58, 237, 0.2);
    background: #000;
}

.flagship-preview-wrap img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s var(--ease-out);
}

.flagship-preview-wrap:hover img {
    transform: scale(1.025);
}

.flagship-badge-os {
    position: absolute;
    top: 16px;
    right: 16px;
    display: flex;
    gap: 8px;
}

.os-pill {
    background: rgba(7, 6, 13, 0.85);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    padding: 4px 10px;
    border-radius: var(--radius-full);
}

/* ── Research Pillars Section ── */
.research-section {
    padding: 100px 0;
    position: relative;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.pillar-card {
    background: var(--void-card);
    border: 1px solid var(--void-border);
    border-radius: var(--radius-lg);
    padding: 36px;
    backdrop-filter: blur(16px);
    transition: all var(--transition-normal);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.pillar-card:hover {
    transform: translateY(-6px);
    border-color: var(--void-border-glow);
    background: var(--void-card-hover);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5), 0 0 30px rgba(124, 58, 237, 0.15);
}

.pillar-card-top {
    margin-bottom: 24px;
}

.pillar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.pillar-icon-box {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.4rem;
}

.icon-box-purple {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.3) 0%, rgba(124, 58, 237, 0.1) 100%);
    border: 1px solid rgba(124, 58, 237, 0.4);
    color: var(--nebula-light);
}

.icon-box-cyan {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.3) 0%, rgba(6, 182, 212, 0.1) 100%);
    border: 1px solid rgba(6, 182, 212, 0.4);
    color: var(--cyan-light);
}

.icon-box-pink {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.3) 0%, rgba(236, 72, 153, 0.1) 100%);
    border: 1px solid rgba(236, 72, 153, 0.4);
    color: var(--symbio-light);
}

.icon-box-amber {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.3) 0%, rgba(245, 158, 11, 0.1) 100%);
    border: 1px solid rgba(245, 158, 11, 0.4);
    color: var(--ember);
}

.pillar-num {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-muted);
    opacity: 0.5;
}

.pillar-title {
    font-size: 1.35rem;
    margin-bottom: 12px;
}

.pillar-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 20px;
}

.pillar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pillar-tag {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 3px 9px;
    border-radius: 6px;
}

/* ── Architecture Section ── */
.arch-section {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(13, 11, 24, 0.5) 50%, transparent 100%);
}

.arch-visual-box {
    background: var(--void-card);
    border: 1px solid var(--void-border);
    border-radius: var(--radius-xl);
    padding: 44px;
    backdrop-filter: blur(20px);
}

.arch-layer-stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.arch-layer {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 22px 28px;
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 24px;
    align-items: center;
    transition: all var(--transition-normal);
}

.arch-layer:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(124, 58, 237, 0.3);
    transform: translateX(6px);
}

.arch-layer-head {
    display: flex;
    align-items: center;
    gap: 12px;
}

.arch-layer-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot-cyan { background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.dot-purple { background: var(--nebula); box-shadow: 0 0 10px var(--nebula); }
.dot-pink { background: var(--symbio); box-shadow: 0 0 10px var(--symbio); }
.dot-amber { background: var(--ember); box-shadow: 0 0 10px var(--ember); }

.arch-layer-title {
    font-size: 1.05rem;
    font-weight: 600;
}

.arch-layer-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.arch-pill {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
}

/* ── Ecosystem Matrix ── */
.ecosystem-section {
    padding: 100px 0;
}

.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.eco-card {
    background: var(--void-card);
    border: 1px solid var(--void-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all var(--transition-normal);
}

.eco-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
    background: var(--void-card-hover);
}

.eco-card-top {
    margin-bottom: 28px;
}

.eco-card-badge {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--cyan-light);
    margin-bottom: 16px;
    display: inline-block;
}

.eco-card-title {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.eco-card-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.eco-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--nebula-light);
    font-size: 0.92rem;
    font-weight: 600;
    text-decoration: none;
    transition: gap var(--transition-fast);
}

.eco-card-link:hover {
    gap: 12px;
    color: #ffffff;
}

/* ── Bottom CTA Banner ── */
.cta-section {
    padding: 100px 0 140px 0;
    position: relative;
}

.cta-box {
    background: radial-gradient(ellipse at center, rgba(124, 58, 237, 0.25) 0%, rgba(13, 11, 24, 0.95) 75%);
    border: 1px solid rgba(124, 58, 237, 0.4);
    border-radius: var(--radius-xl);
    padding: 72px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.8), 0 0 60px rgba(124, 58, 237, 0.2);
}

.cta-title {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    margin-bottom: 18px;
}

.cta-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto 36px auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

/* ── Footer ── */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(7, 6, 13, 0.95);
    padding: 80px 0 40px 0;
    position: relative;
    z-index: 10;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 320px;
}

.footer-col-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    text-transform: uppercase;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.footer-bottom-links a {
    color: var(--text-muted);
    text-decoration: none;
}

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

/* ── Responsive Queries ── */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .flagship-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .pillars-grid {
        grid-template-columns: 1fr;
    }
    .ecosystem-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .navbar .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(7, 6, 13, 0.96);
        backdrop-filter: blur(20px);
        padding: 30px 24px;
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        transform: translateY(-150%);
        transition: transform var(--transition-normal);
        display: flex;
    }
    .navbar .nav-menu.open {
        transform: translateY(0);
    }
    .hamburger {
        display: block;
    }
    .nav-actions {
        display: none;
    }
    .flagship-card {
        padding: 32px 24px;
    }
    .flagship-highlights {
        grid-template-columns: 1fr;
    }
    .arch-layer {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}