/* ═══════════════════════════════════════════
   DEVETEK Landing Page — style.css
   Last Updated: 9 Feb 2026
   ═══════════════════════════════════════════ */

/* ── Variables & Reset ───────────────────── */
:root {
    --primary: #0066FF;
    --primary-dark: #0052CC;
    --primary-light: #E6F0FF;
    --accent: #00D4AA;
    --accent-dark: #00B894;
    --dark: #0A0F1C;
    --dark-2: #111827;
    --dark-3: #1F2937;
    --gray-1: #374151;
    --gray-2: #6B7280;
    --gray-3: #9CA3AF;
    --gray-4: #D1D5DB;
    --gray-5: #F3F4F6;
    --white: #FFFFFF;
    --gradient-hero: linear-gradient(135deg, #0A0F1C 0%, #1a1a3e 50%, #0A0F1C 100%);
    --gradient-accent: linear-gradient(135deg, #0066FF, #00D4AA);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--white);
    background: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ── Lucide Icons Sizing ─────────────────── */
.lucide-icon { width: 48px; height: 48px; stroke-width: 1.5; color: var(--accent); }
.lucide-card { width: 32px; height: 32px; stroke-width: 1.5; color: var(--accent); }
.lucide-check { width: 18px; height: 18px; stroke-width: 2.5; color: var(--accent); flex-shrink: 0; }
.lucide-sm { width: 16px; height: 16px; stroke-width: 2; margin-left: 4px; vertical-align: middle; }
.lucide-xs { width: 14px; height: 14px; stroke-width: 2; vertical-align: middle; }
.lucide-topo { width: 24px; height: 24px; stroke-width: 1.5; color: var(--accent); }
.lucide-cloud { width: 28px; height: 28px; stroke-width: 1.5; color: var(--primary); }
.lucide-output { width: 28px; height: 28px; stroke-width: 1.5; color: var(--accent); }
.lucide-arrow { width: 20px; height: 20px; stroke-width: 2; color: var(--primary); }
.lucide-badge { width: 14px; height: 14px; stroke-width: 2; vertical-align: middle; margin-right: 4px; }
.lucide-spec { width: 20px; height: 20px; stroke-width: 1.5; color: var(--accent); }
.lucide-faq { width: 24px; height: 24px; stroke-width: 1.5; color: var(--accent); }
.lucide-timeline { width: 32px; height: 32px; stroke-width: 1.5; color: var(--accent); }
.lucide-sla { width: 28px; height: 28px; stroke-width: 1.5; color: var(--accent); }
.lucide-solar { width: 64px; height: 64px; stroke-width: 1; color: #FFD700; }
.lucide-btn { width: 18px; height: 18px; stroke-width: 2; vertical-align: middle; margin-right: 6px; }
.lucide-contact { width: 20px; height: 20px; stroke-width: 1.5; color: var(--accent); }

/* ── Utility ─────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-dark { background: var(--dark); color: var(--white); }
.section-dark-alt { background: var(--dark-2); color: var(--white); }
.section-gray { background: var(--gray-5); }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.badge-accent {
    background: rgba(0,212,170,0.1);
    color: var(--accent);
    border: 1px solid rgba(0,212,170,0.2);
}

.badge-primary {
    background: rgba(0,102,255,0.1);
    color: var(--primary);
    border: 1px solid rgba(0,102,255,0.2);
}

.badge-light {
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.9);
    border: 1px solid rgba(255,255,255,0.15);
}

.section-label { text-align: center; margin-bottom: 16px; }

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-2);
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
    line-height: 1.7;
}

.section-dark .section-subtitle { color: var(--gray-3); }
.section-dark-alt .section-subtitle { color: var(--gray-3); }

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

/* ── Buttons ─────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0,102,255,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,102,255,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.6);
    transform: translateY(-2px);
}

.btn-dark { background: rgba(255,255,255,0.08); color: var(--white); border: 1px solid rgba(255,255,255,0.15); }
.btn-dark:hover { background: rgba(255,255,255,0.15); transform: translateY(-2px); border-color: rgba(255,255,255,0.25); }

.btn-white { background: var(--white); color: var(--dark); box-shadow: var(--shadow-md); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* ── Navbar ──────────────────────────────── */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10,15,28,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}

.navbar .container { display: flex; justify-content: space-between; align-items: center; }

.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--white); }

.logo-icon {
    width: 36px; height: 36px;
    border-radius: 8px;
    background: var(--gradient-accent);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 1.1rem; color: var(--white);
}

.logo-text { font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em; }

.nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }
.nav-links a { color: rgba(255,255,255,0.7); text-decoration: none; font-size: 0.9rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--white); }

.nav-cta {
    padding: 10px 22px !important;
    background: rgba(255,255,255,0.1) !important;
    border: 1px solid rgba(255,255,255,0.2) !important;
    border-radius: var(--radius-sm) !important;
    color: var(--white) !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
}

.nav-cta:hover { background: var(--primary) !important; border-color: var(--primary) !important; }

.mobile-toggle { display: none; background: none; border: none; color: white; font-size: 1.5rem; cursor: pointer; }

/* ── Hero ────────────────────────────────── */
.hero {
    background: var(--gradient-hero);
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative; overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute; top: -50%; right: -30%;
    width: 80%; height: 150%;
    background: radial-gradient(ellipse, rgba(0,102,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute; bottom: -30%; left: -20%;
    width: 60%; height: 100%;
    background: radial-gradient(ellipse, rgba(0,212,170,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 40%, transparent 100%);
}

.hero-content { position: relative; z-index: 2; text-align: center; max-width: 800px; margin: 0 auto; }
.hero-badge { margin-bottom: 24px; }

.hero h1 {
    font-size: 3.8rem; font-weight: 900;
    color: var(--white); line-height: 1.1;
    letter-spacing: -0.03em; margin-bottom: 24px;
}

.hero p { font-size: 1.2rem; color: var(--gray-3); max-width: 560px; margin: 0 auto 40px; line-height: 1.7; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.hero-stats {
    display: flex; gap: 48px; justify-content: center;
    margin-top: 72px; padding-top: 48px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-stat { text-align: center; }
.hero-stat-value { font-size: 2rem; font-weight: 800; color: var(--white); letter-spacing: -0.02em; }
.hero-stat-label { font-size: 0.85rem; color: var(--gray-3); margin-top: 4px; }

/* ── Products ────────────────────────────── */
.products-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }

.product-card {
    position: relative; border-radius: var(--radius-xl);
    padding: 48px; overflow: hidden; transition: transform 0.3s ease;
}

.product-card:hover { transform: translateY(-4px); }

.product-card-helios { background: linear-gradient(135deg, #0A0F1C 0%, #1a1a3e 100%); color: var(--white); }
.product-card-node { background: rgba(255,255,255,0.05); color: var(--white); border: 1px solid rgba(255,255,255,0.08); box-shadow: 0 4px 20px rgba(0,0,0,0.2); }

.product-icon {
    width: 64px; height: 64px; border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 24px;
}

.product-icon .lucide-icon { width: 32px; height: 32px; stroke-width: 1.5; }

.product-card-helios .product-icon { background: rgba(0,212,170,0.15); }
.product-card-helios .product-icon .lucide-icon { color: var(--accent); }
.product-card-node .product-icon { background: rgba(0,102,255,0.15); }
.product-card-node .product-icon .lucide-icon { color: var(--primary); }

.product-card h3 { font-size: 1.6rem; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; }
.product-card .product-tagline { font-size: 0.95rem; opacity: 0.7; margin-bottom: 24px; }

.product-features { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.product-features li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.92rem; line-height: 1.5; }

.product-features .check {
    flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin-top: 2px;
}

.product-features .check .lucide-check { width: 14px; height: 14px; stroke-width: 3; }

.product-card-helios .check { background: rgba(0,212,170,0.2); }
.product-card-helios .check .lucide-check { color: var(--accent); }
.product-card-node .check { background: rgba(0,102,255,0.15); }
.product-card-node .check .lucide-check { color: var(--primary); }

/* ── Node Types ──────────────────────────── */
.node-types { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.node-card {
    background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg); padding: 36px;
    transition: all 0.3s ease; position: relative; overflow: hidden;
}

.node-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; }
.node-card-a::before { background: var(--gradient-accent); }
.node-card-b::before { background: linear-gradient(90deg, #0066FF, #6C5CE7); }
.node-card-c::before { background: linear-gradient(90deg, #FF6B6B, #FFE66D); }

.node-card:hover { transform: translateY(-4px); box-shadow: 0 10px 40px rgba(0,0,0,0.3); border-color: rgba(255,255,255,0.15); }

.node-type-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem; font-weight: 600;
    letter-spacing: 1.5px; text-transform: uppercase;
    color: var(--gray-3); margin-bottom: 12px;
}

.node-card h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; color: var(--white); }
.node-card .node-desc { font-size: 0.9rem; color: var(--gray-3); margin-bottom: 24px; line-height: 1.6; }

.node-specs { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.node-spec { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; }

.node-spec-icon {
    width: 32px; height: 32px; border-radius: 8px;
    background: rgba(255,255,255,0.06);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}

.node-spec-icon .lucide-spec { width: 16px; height: 16px; stroke-width: 1.8; color: var(--accent); }

.node-spec-text { color: var(--gray-3); }
.node-spec-text strong { color: var(--white); }

.node-highlights {
    display: flex; flex-wrap: wrap; gap: 6px;
    margin-top: 16px; padding-top: 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.node-tag { padding: 4px 10px; border-radius: 100px; font-size: 0.75rem; font-weight: 500; }
.node-card-a .node-tag { background: rgba(0,212,170,0.1); color: var(--accent-dark); }
.node-card-b .node-tag { background: rgba(0,102,255,0.08); color: var(--primary); }
.node-card-c .node-tag { background: rgba(255,107,107,0.1); color: #E55353; }

/* ── Comparison Table (Redesigned) ────────── */
.comparison-wrapper {
    overflow-x: auto; border-radius: var(--radius-xl);
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 8px 40px rgba(0,0,0,0.2);
    backdrop-filter: blur(10px);
}

.comparison-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 0.88rem; }

/* Header */
.comparison-table thead th {
    padding: 24px 20px 20px;
    text-align: center; vertical-align: bottom;
    background: rgba(255,255,255,0.04);
    border-bottom: 2px solid rgba(255,255,255,0.08);
    position: sticky; top: 0; z-index: 2;
}

.ct-feature-col {
    text-align: left !important; width: 28%;
    font-size: 0.82rem; font-weight: 600;
    letter-spacing: 0.5px; text-transform: uppercase;
    color: var(--gray-3);
}

.ct-col-a, .ct-col-b, .ct-col-c { min-width: 180px; }

.ct-col-badge {
    width: 40px; height: 4px; border-radius: 100px;
    margin: 0 auto 12px;
}

.ct-badge-a { background: var(--gradient-accent); }
.ct-badge-b { background: linear-gradient(90deg, #0066FF, #6C5CE7); }
.ct-badge-c { background: linear-gradient(90deg, #FF6B6B, #FFE66D); }

.ct-col-type {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.88rem; font-weight: 700;
    color: var(--white); letter-spacing: 0.5px;
}

.ct-col-name {
    display: block;
    font-size: 0.72rem; font-weight: 400;
    color: var(--gray-3); margin-top: 2px;
}

/* Body rows */
.comparison-table tbody tr {
    border-bottom: 1px solid rgba(255,255,255,0.04);
    transition: background 0.2s;
}

.comparison-table tbody tr:hover { background: rgba(255,255,255,0.03); }

.comparison-table tbody td {
    padding: 14px 20px;
    vertical-align: middle;
    color: var(--gray-3);
    font-size: 0.88rem;
}

.comparison-table tbody td:first-child {
    text-align: left; font-weight: 500;
    color: rgba(255,255,255,0.8);
}

.comparison-table tbody td:not(:first-child) { text-align: center; }

/* Group rows */
.comparison-table .group-row {
    background: rgba(255,255,255,0.06) !important;
}

.comparison-table .group-row td {
    font-weight: 700; font-size: 0.78rem;
    letter-spacing: 0.8px; text-transform: uppercase;
    color: var(--white) !important;
    padding: 14px 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.group-icon {
    font-size: 0.95rem;
    margin-right: 6px;
    vertical-align: middle;
}

/* Pill badges — the core visual upgrade */
.pill {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 4px 14px; border-radius: 100px;
    font-size: 0.78rem; font-weight: 600;
    letter-spacing: 0.2px;
    white-space: nowrap;
    transition: all 0.2s ease;
}

/* Green — feature available */
.pill-yes {
    background: rgba(0,212,170,0.12);
    color: #00E4B8;
    border: 1px solid rgba(0,212,170,0.2);
}

/* Green+bold — included in package */
.pill-inc {
    background: rgba(0,212,170,0.18);
    color: #00FFD0;
    border: 1px solid rgba(0,212,170,0.3);
    font-weight: 700;
}

/* Blue — highlight/premium feature */
.pill-highlight {
    background: rgba(0,102,255,0.15);
    color: #6CB4FF;
    border: 1px solid rgba(0,102,255,0.25);
    font-weight: 700;
}

/* Yellow/amber — optional add-on */
.pill-opt {
    background: rgba(255,190,60,0.1);
    color: #FFBE3C;
    border: 1px solid rgba(255,190,60,0.2);
}

/* Gray — plain value text */
.pill-val {
    background: rgba(255,255,255,0.06);
    color: var(--gray-3);
    border: 1px solid rgba(255,255,255,0.08);
    font-weight: 500;
}

/* Red/dim — not available */
.pill-no {
    background: rgba(255,255,255,0.03);
    color: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.05);
}

/* Hover glow on pills */
.comparison-table tbody tr:hover .pill-yes { box-shadow: 0 0 12px rgba(0,212,170,0.15); }
.comparison-table tbody tr:hover .pill-inc { box-shadow: 0 0 12px rgba(0,212,170,0.2); }
.comparison-table tbody tr:hover .pill-highlight { box-shadow: 0 0 12px rgba(0,102,255,0.15); }

/* Column hover highlight */
.comparison-table tbody td:nth-child(2) { border-left: 1px solid rgba(255,255,255,0.03); }
.comparison-table tbody td:nth-child(4) { border-right: 1px solid rgba(255,255,255,0.03); }

/* Table legend */
.ct-legend {
    display: flex; gap: 20px; justify-content: center;
    flex-wrap: wrap; margin-top: 24px;
    padding: 16px;
}

.ct-legend-item {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.78rem; color: var(--gray-3);
}

/* ── Topology / Architecture Diagram ─────── */
.topology {
    position: relative;
    display: flex; flex-direction: column; align-items: center;
    gap: 0; margin-bottom: 48px;
}

/* Layer containers */
.topo-layer {
    width: 100%; max-width: 960px;
    border-radius: var(--radius-xl);
    padding: 28px 32px 24px;
    position: relative;
}

.topo-layer-label { margin-bottom: 16px; text-align: center; }

.topo-layer-tag {
    display: inline-block;
    padding: 4px 16px; border-radius: 100px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem; font-weight: 600;
    letter-spacing: 1.5px; text-transform: uppercase;
}

.topo-tag-field { background: rgba(0,102,255,0.15); color: #4d9aff; }
.topo-tag-node { background: rgba(0,212,170,0.15); color: var(--accent); }
.topo-tag-cloud { background: rgba(138,92,246,0.2); color: #b794f6; }
.topo-tag-output { background: rgba(255,107,107,0.15); color: #ff8a8a; }

.topo-layer-field { background: rgba(0,102,255,0.04); border: 1px solid rgba(0,102,255,0.12); }
.topo-layer-node { background: rgba(0,212,170,0.04); border: 1px solid rgba(0,212,170,0.12); }
.topo-layer-cloud { background: rgba(138,92,246,0.06); border: 1px solid rgba(138,92,246,0.15); }
.topo-layer-output { background: rgba(255,107,107,0.04); border: 1px solid rgba(255,107,107,0.12); }

.topo-layer-content {
    display: flex; align-items: center; justify-content: center;
    gap: 16px; flex-wrap: wrap;
}

/* Field devices (sensor blocks) */
.topo-device {
    text-align: center; padding: 14px 12px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
    min-width: 100px; transition: all 0.3s ease;
}

.topo-device:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(0,102,255,0.3);
    transform: translateY(-2px);
}

.topo-device-icon { margin-bottom: 6px; display: flex; justify-content: center; }
.topo-device-icon .lucide-topo { width: 24px; height: 24px; stroke-width: 1.5; color: var(--accent); }
.topo-device-name { font-size: 0.72rem; font-weight: 500; color: var(--gray-3); line-height: 1.3; }

/* Connectors between layers */
.topo-connector {
    display: flex; flex-direction: column; align-items: center;
    padding: 12px 0; position: relative;
}

.topo-connector-line {
    width: 2px; height: 36px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.1), rgba(255,255,255,0.25), rgba(255,255,255,0.1));
    position: relative;
}

.topo-connector-line::before {
    content: ''; position: absolute;
    bottom: -4px; left: 50%; transform: translateX(-50%);
    width: 0; height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid rgba(255,255,255,0.25);
}

.topo-connector-line-accent {
    background: linear-gradient(to bottom, rgba(0,212,170,0.15), rgba(0,212,170,0.4), rgba(0,212,170,0.15));
    box-shadow: 0 0 12px rgba(0,212,170,0.15);
}

.topo-connector-line-accent::before {
    border-top-color: rgba(0,212,170,0.4);
}

.topo-connector-labels {
    display: flex; gap: 8px; flex-wrap: wrap; justify-content: center;
    margin-top: 8px;
}

.topo-protocol {
    padding: 2px 10px; border-radius: 100px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem; font-weight: 500;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--gray-3);
}

.topo-protocol-accent {
    background: rgba(0,212,170,0.1);
    border-color: rgba(0,212,170,0.2);
    color: var(--accent);
}

.topo-protocol-warn {
    background: rgba(255,230,77,0.12);
    border-color: rgba(255,230,77,0.25);
    color: #FFE66D;
}

/* Node hardware boxes */
.topo-nodes-row { gap: 16px; }

.topo-node-box {
    flex: 1; min-width: 200px; max-width: 280px;
    padding: 20px; border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    text-align: center; position: relative;
    transition: all 0.3s ease; overflow: hidden;
}

.topo-node-box::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
}

.topo-node-a::before { background: var(--gradient-accent); }
.topo-node-b::before { background: linear-gradient(90deg, #0066FF, #6C5CE7); }
.topo-node-c::before { background: linear-gradient(90deg, #FF6B6B, #FFE66D); }

.topo-node-box:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.topo-node-type {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem; font-weight: 600;
    letter-spacing: 1px; text-transform: uppercase;
    color: var(--gray-3); margin-bottom: 4px;
}

.topo-node-name { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: 4px; }
.topo-node-detail { font-size: 0.78rem; color: var(--gray-3); margin-bottom: 10px; }

.topo-node-power {
    display: flex; gap: 10px; justify-content: center;
    font-size: 0.72rem; color: var(--gray-3);
}

.topo-node-power span {
    background: rgba(255,255,255,0.06);
    padding: 3px 8px; border-radius: 100px;
    display: flex; align-items: center; gap: 4px;
}

.topo-node-power .lucide-topo { width: 12px; height: 12px; stroke-width: 2; color: var(--accent); }

/* Cloud pipeline steps */
.topo-cloud-pipeline {
    display: flex; align-items: flex-start; justify-content: center;
    gap: 8px; flex-wrap: wrap;
}

.topo-cloud-step {
    text-align: center; padding: 16px 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(138,92,246,0.15);
    border-radius: var(--radius-md);
    min-width: 100px; position: relative;
    transition: all 0.3s ease;
}

.topo-cloud-step:hover {
    background: rgba(138,92,246,0.08);
    border-color: rgba(138,92,246,0.3);
    transform: translateY(-2px);
}

.topo-cloud-step-num {
    position: absolute; top: -8px; right: -8px;
    width: 22px; height: 22px;
    background: linear-gradient(135deg, #8A5CF6, #6C5CE7);
    border-radius: 50%; color: white;
    font-size: 0.65rem; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
}

.topo-cloud-step-icon { margin-bottom: 6px; display: flex; justify-content: center; }
.topo-cloud-step-icon .lucide-cloud { width: 24px; height: 24px; stroke-width: 1.5; color: #b794f6; }
.topo-cloud-step-name { font-size: 0.78rem; font-weight: 600; color: var(--white); margin-bottom: 2px; }
.topo-cloud-step-desc { font-size: 0.68rem; color: var(--gray-3); }

.topo-cloud-arrow { color: rgba(138,92,246,0.4); padding-top: 20px; display: flex; align-items: center; }
.topo-cloud-arrow .lucide-arrow { width: 18px; height: 18px; stroke-width: 2; color: rgba(138,92,246,0.5); }

.topo-cloud-partner {
    text-align: center; margin-top: 16px;
    font-size: 0.78rem; color: var(--gray-3);
    padding: 6px 16px; border-radius: 100px;
    background: rgba(138,92,246,0.08);
    display: inline-block;
}

.topo-cloud-partner strong { color: #b794f6; }

.topo-layer-cloud .topo-layer-content {
    flex-direction: column;
}

/* Output boxes */
.topo-output-box {
    text-align: center; padding: 16px 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,107,107,0.12);
    border-radius: var(--radius-md);
    min-width: 100px; transition: all 0.3s ease;
}

.topo-output-box:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,107,107,0.3);
    transform: translateY(-2px);
}

.topo-output-icon { margin-bottom: 6px; display: flex; justify-content: center; }
.topo-output-icon .lucide-output { width: 24px; height: 24px; stroke-width: 1.5; color: #FF6B6B; }
.topo-output-name { font-size: 0.72rem; font-weight: 500; color: var(--gray-3); line-height: 1.3; }

/* Legend */
.topo-legend {
    display: flex; gap: 24px; justify-content: center;
    flex-wrap: wrap; margin-bottom: 32px;
}

.topo-legend-item {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.78rem; color: var(--gray-3);
}

.topo-legend-dot {
    width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}

/* Metrics row */
.topo-metrics {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    max-width: 800px; margin: 0 auto;
}

.topo-metric {
    text-align: center; padding: 20px 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
}

.topo-metric-value {
    font-size: 1.1rem; font-weight: 700; color: var(--white);
    margin-bottom: 4px;
}

.topo-metric-label { font-size: 0.75rem; color: var(--gray-3); }

/* ── HELIOS Features ─────────────────────── */
.helios-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ── Product Gallery ─────────────────────── */
.gallery-showcase {
    margin-bottom: 48px;
    background: var(--dark);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.06);
}

.gallery-showcase-header {
    display: flex; align-items: center; gap: 10px;
    padding: 16px 24px;
    background: rgba(255,255,255,0.03);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.gallery-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem; font-weight: 500;
    color: var(--gray-3); letter-spacing: 0.5px;
}

.gallery-live-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent);
    animation: livePulse 2s ease-in-out infinite;
    margin-left: auto;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,212,170,0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(0,212,170,0); }
}

.gallery-live-text {
    font-size: 0.72rem; font-weight: 600;
    color: var(--accent); text-transform: uppercase;
    letter-spacing: 1px;
}

.gallery-screenshots {
    display: grid; grid-template-columns: 1.4fr 1fr;
    gap: 2px; padding: 2px;
}

.gallery-screenshot {
    position: relative; overflow: hidden;
    border-radius: var(--radius-sm);
}

.gallery-screenshot img {
    width: 100%; height: 100%;
    object-fit: cover; display: block;
    transition: transform 0.5s ease;
}

.gallery-screenshot:hover img { transform: scale(1.03); }

.gallery-screenshot-main { min-height: 360px; }
.gallery-screenshot-main img { min-height: 360px; }

.gallery-screenshot-stack {
    display: flex; flex-direction: column;
    gap: 2px;
}

.gallery-screenshot-stack .gallery-screenshot { flex: 1; }
.gallery-screenshot-stack .gallery-screenshot img { min-height: 175px; }

.gallery-screenshot-caption {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 24px 16px 12px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    font-size: 0.8rem; color: var(--white);
    font-weight: 500; opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-screenshot:hover .gallery-screenshot-caption { opacity: 1; }

/* Hardware gallery */
.gallery-hardware {
    display: grid; grid-template-columns: 1.6fr 1fr; gap: 20px;
}

.gallery-hardware-main {
    position: relative; border-radius: var(--radius-xl);
    overflow: hidden; min-height: 400px;
    border: 1px solid rgba(255,255,255,0.08);
}

.gallery-hardware-main img {
    width: 100%; height: 100%;
    object-fit: cover; display: block;
    transition: transform 0.6s ease;
}

.gallery-hardware-main:hover img { transform: scale(1.03); }

.gallery-hardware-overlay {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 40px 28px 24px;
    background: linear-gradient(to top, rgba(10,15,28,0.9) 0%, rgba(10,15,28,0.4) 60%, transparent 100%);
}

.gallery-hardware-overlay h4 {
    font-size: 1.3rem; font-weight: 700;
    color: var(--white); margin-bottom: 4px;
}

.gallery-hardware-overlay p {
    font-size: 0.88rem; color: var(--gray-3);
}

.gallery-hardware-field {
    display: flex; flex-direction: column; gap: 20px;
}

.gallery-field-card {
    flex: 1; position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden; border: 1px solid rgba(255,255,255,0.08);
}

.gallery-field-card img {
    width: 100%; height: 100%;
    object-fit: cover; display: block;
    min-height: 185px;
    transition: transform 0.5s ease;
}

.gallery-field-card:hover img { transform: scale(1.05); }

.gallery-field-overlay {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 20px 16px 12px;
    background: linear-gradient(to top, rgba(10,15,28,0.85), transparent);
}

.gallery-field-overlay span {
    font-size: 0.82rem; font-weight: 600; color: var(--white);
}

/* ── Subscription Section ────────────────── */
.subscription-flow {
    display: flex; align-items: flex-start; justify-content: center;
    gap: 12px; margin-bottom: 48px; flex-wrap: wrap;
}

.sub-step {
    background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg); padding: 28px 24px;
    text-align: center; flex: 1; min-width: 180px; max-width: 240px;
    transition: all 0.3s ease;
}

.sub-step:hover { transform: translateY(-4px); box-shadow: 0 10px 40px rgba(0,0,0,0.3); border-color: var(--primary); }

.sub-step-number {
    width: 40px; height: 40px;
    background: var(--gradient-accent); color: var(--white);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; font-weight: 700;
    margin: 0 auto 16px;
}

.sub-step-title { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--white); }
.sub-step-desc { font-size: 0.82rem; color: var(--gray-3); line-height: 1.5; }

.sub-arrow { font-size: 1.5rem; color: var(--gray-3); padding-top: 40px; opacity: 0.5; }

.subscription-includes {
    background: rgba(255,255,255,0.04); border-radius: var(--radius-xl);
    padding: 40px 48px; border: 1px solid rgba(255,255,255,0.08);
}

.subscription-includes h3 {
    font-size: 1.15rem; font-weight: 700; margin-bottom: 24px;
    color: var(--white); text-align: center;
}

.sub-features-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 14px 32px;
}

.sub-feature {
    display: flex; align-items: center; gap: 10px;
    font-size: 0.9rem; color: var(--gray-3);
}

.sub-feature .lucide-check {
    color: var(--accent-dark); flex-shrink: 0;
    width: 16px; height: 16px; stroke-width: 2.5;
}

.helios-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg); padding: 32px;
    transition: all 0.3s ease;
}

.helios-card:hover { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.15); transform: translateY(-2px); }

.helios-card-icon {
    width: 48px; height: 48px; border-radius: var(--radius-sm);
    background: rgba(0,212,170,0.1);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
}

.helios-card-icon .lucide-card { width: 24px; height: 24px; stroke-width: 1.5; color: var(--accent); }

.helios-card h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; color: var(--white); }
.helios-card p { font-size: 0.88rem; color: var(--gray-3); line-height: 1.6; }

/* ── Solar Section ───────────────────────── */
.solar-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

.solar-visual {
    background: rgba(255,255,255,0.04); border-radius: var(--radius-xl);
    padding: 48px; text-align: center; position: relative;
    border: 1px solid rgba(255,255,255,0.08);
}

.solar-icon-large { margin-bottom: 20px; display: flex; justify-content: center; }
.solar-icon-large .lucide-solar { width: 72px; height: 72px; stroke-width: 1; color: #FFD700; }

.solar-spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }

.solar-spec-item { background: rgba(255,255,255,0.06); padding: 16px; border-radius: var(--radius-md); text-align: center; border: 1px solid rgba(255,255,255,0.08); }
.solar-spec-item .value { font-size: 1.3rem; font-weight: 700; color: var(--white); }
.solar-spec-item .label { font-size: 0.78rem; color: var(--gray-3); margin-top: 2px; }

.solar-info h3 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; color: var(--white); }
.solar-info p { color: var(--gray-3); margin-bottom: 24px; line-height: 1.7; }

.solar-benefits { display: flex; flex-direction: column; gap: 14px; }
.solar-benefit { display: flex; align-items: flex-start; gap: 12px; font-size: 0.92rem; color: var(--gray-3); }

.solar-benefit .icon {
    width: 24px; height: 24px;
    background: rgba(0,212,170,0.1); color: var(--accent-dark);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.7rem; flex-shrink: 0; margin-top: 2px;
}

/* ── Use Cases ───────────────────────────── */
.usecases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.usecase-card {
    border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    transition: all 0.3s ease; background: rgba(255,255,255,0.04);
}

.usecase-card:hover { transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,0.3); }

.usecase-img { height: 200px; display: flex; align-items: center; justify-content: center; font-size: 3.5rem; overflow: hidden; }
.usecase-img-1 { background: linear-gradient(135deg, #0D2137, #1a3a5c); }
.usecase-img-2 { background: linear-gradient(135deg, #0D2517, #1a3d2a); }
.usecase-img-3 { background: linear-gradient(135deg, #2D1F0D, #3d2f1a); }

.usecase-img-real {
    height: 220px; padding: 0; position: relative;
}

.usecase-img-real img {
    width: 100%; height: 100%;
    object-fit: cover; display: block;
    transition: transform 0.5s ease;
}

.usecase-card:hover .usecase-img-real img { transform: scale(1.05); }

.usecase-body { padding: 28px; }
.usecase-body h4 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; color: var(--white); }
.usecase-body p { font-size: 0.88rem; color: var(--gray-3); line-height: 1.6; margin-bottom: 16px; }

.usecase-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.usecase-tag { padding: 4px 10px; border-radius: 100px; font-size: 0.72rem; font-weight: 500; background: rgba(255,255,255,0.06); color: var(--gray-3); }

/* ── CTA ─────────────────────────────────── */
.cta-section {
    background: var(--gradient-hero);
    padding: 100px 0; text-align: center;
    position: relative; overflow: hidden;
}

.cta-section::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 80px 80px;
}

.cta-content { position: relative; z-index: 2; }

.cta-section h2 { font-size: 2.8rem; font-weight: 800; color: var(--white); margin-bottom: 16px; letter-spacing: -0.02em; }
.cta-section p { font-size: 1.1rem; color: var(--gray-3); max-width: 520px; margin: 0 auto 36px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.cta-contacts { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; }

.cta-contact {
    display: flex; align-items: center; gap: 8px;
    color: var(--gray-3); font-size: 0.9rem;
    text-decoration: none; transition: color 0.2s;
}

.cta-contact:hover { color: var(--white); }

.cta-contact-icon {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.08); border-radius: 50%;
    display: flex; align-items: center; justify-content: center; font-size: 1rem;
}

/* ── PDAM Monitoring Locations ──────────── */
.pdam-diagram-wrapper {
    text-align: center;
    margin: 40px 0 60px;
    padding: 20px;
}

.pdam-diagram {
    width: 100%;
    max-width: 1000px;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0, 212, 170, 0.15);
    border: 1px solid var(--dark-3);
    display: block;
    margin: 0 auto;
}

.pdam-diagram-caption {
    color: var(--gray-3);
    font-size: 0.85rem;
    margin-top: 16px;
    font-style: italic;
    text-align: center;
}

.monitoring-points-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 40px;
    margin-bottom: 40px;
}

.monitoring-point {
    background: var(--dark-2);
    border-radius: var(--radius-lg);
    border: 1px solid var(--dark-3);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.monitoring-point:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 212, 170, 0.1);
}

.monitoring-header {
    background: var(--dark-3);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 70px;
}

.monitoring-icon {
    width: 28px;
    height: 28px;
    color: var(--accent);
    flex-shrink: 0;
}

.monitoring-header h3 {
    color: var(--white);
    font-size: 1.1rem;
    margin: 0;
    line-height: 1.3;
}

.monitoring-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.monitoring-sensors {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.sensor-tag {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(0, 212, 170, 0.1);
    color: var(--accent);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(0, 212, 170, 0.2);
    white-space: nowrap;
}

.monitoring-desc {
    color: var(--gray-3);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

.pdam-cta {
    text-align: center;
    padding: 60px 40px;
    margin-top: 80px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 212, 170, 0.1));
    border-radius: var(--radius-xl);
    border: 1px solid var(--dark-3);
}

.pdam-cta h3 {
    color: var(--white);
    font-size: 1.8rem;
    margin-bottom: 16px;
    line-height: 1.3;
}

.pdam-cta p {
    color: var(--gray-3);
    font-size: 1.05rem;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

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

@media (max-width: 1024px) {
    .monitoring-points-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .monitoring-points-grid {
        grid-template-columns: 1fr;
    }
    
    .pdam-cta h3 {
        font-size: 1.4rem;
    }
    
    .pdam-cta {
        padding: 40px 20px;
        margin-top: 60px;
    }
    
    .pdam-diagram-wrapper {
        margin: 30px 0 40px;
        padding: 10px;
    }
    
    .monitoring-header h3 {
        font-size: 1rem;
    }
}

/* ── Footer ──────────────────────────────── */
.footer {
    background: var(--dark);
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 48px 0 32px;
}

.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-left { display: flex; align-items: center; gap: 12px; }
.footer-text { color: var(--gray-3); font-size: 0.85rem; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--gray-3); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }

/* ── Animations ──────────────────────────── */
.fade-in {
    opacity: 0; transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Topology pulse animation for data flow */
@keyframes dataFlowPulse {
    0%, 100% { opacity: 0.3; box-shadow: none; }
    50% { opacity: 1; box-shadow: 0 0 12px rgba(0,212,170,0.3); }
}

.topo-connector-line-accent::after {
    content: ''; position: absolute;
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent); left: 50%; transform: translateX(-50%);
    animation: dataFlowDown 2s ease-in-out infinite;
}

@keyframes dataFlowDown {
    0% { top: 0; opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

/* ── Responsive ──────────────────────────── */
@media (max-width: 1024px) {
    .hero h1 { font-size: 3rem; }
    .products-grid { grid-template-columns: 1fr; }
    .node-types { grid-template-columns: 1fr; }
    .helios-features { grid-template-columns: 1fr 1fr; }
    .usecases-grid { grid-template-columns: 1fr; }
    .solar-grid { grid-template-columns: 1fr; }
    .sub-features-grid { grid-template-columns: 1fr; }
    .topo-metrics { grid-template-columns: 1fr 1fr; }
    .topo-node-box { min-width: 160px; }
    .topo-cloud-pipeline { gap: 6px; }
    .gallery-screenshots { grid-template-columns: 1fr; }
    .gallery-screenshot-main { min-height: 280px; }
    .gallery-screenshot-main img { min-height: 280px; }
    .gallery-screenshot-stack { flex-direction: row; }
    .gallery-hardware { grid-template-columns: 1fr; }
    .gallery-hardware-main { min-height: 320px; }
    .gallery-hardware-field { flex-direction: row; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.4rem; }
    .hero p { font-size: 1rem; }
    .section { padding: 60px 0; }
    .section-title { font-size: 1.8rem; }
    .hero-stats { flex-direction: column; gap: 24px; }
    .helios-features { grid-template-columns: 1fr; }
    .cta-section h2 { font-size: 2rem; }
    .comparison-wrapper { margin: 0 -24px; border-radius: 0; border-left: 0; border-right: 0; }
    .comparison-table tbody td:first-child { font-size: 0.8rem; }
    .pill { font-size: 0.7rem; padding: 3px 10px; }
    .ct-legend { gap: 10px; flex-direction: column; align-items: center; }
    .subscription-flow { flex-direction: column; align-items: center; }
    .sub-arrow { transform: rotate(90deg); padding-top: 0; }
    .sub-step { max-width: 100%; }
    .subscription-includes { padding: 28px 24px; }

    /* Gallery responsive */
    .gallery-screenshot-stack { flex-direction: column; }
    .gallery-hardware-main { min-height: 240px; }
    .gallery-hardware-field { flex-direction: column; }
    .gallery-field-card img { min-height: 160px; }

    /* Topology responsive */
    .topo-layer { padding: 20px 16px; }
    .topo-device { min-width: 80px; padding: 10px 8px; }
    .topo-device-icon .lucide-topo { width: 20px; height: 20px; }
    .topo-device-name { font-size: 0.65rem; }
    .topo-nodes-row { flex-direction: column; align-items: center; }
    .topo-node-box { min-width: 100%; max-width: 100%; }
    .topo-cloud-pipeline { flex-direction: column; align-items: center; }
    .topo-cloud-arrow { transform: rotate(90deg); padding-top: 0; }
    .topo-metrics { grid-template-columns: 1fr 1fr; gap: 10px; }
    .topo-legend { gap: 12px; }

    .nav-links {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        flex-direction: column; background: rgba(10,15,28,0.98);
        padding: 24px; gap: 16px; backdrop-filter: blur(20px);
    }
    .nav-links.active { display: flex; }
    .mobile-toggle { display: block; }
}

/* ==========================================================================
   TOPOLOGY STAGGERED ANIMATIONS
   ========================================================================== */
.topo-animate {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.topo-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Connector line with flowing dot - like data streaming */
.topo-connector-line {
    position: relative;
    overflow: visible;
}

.topo-connector-line::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent), 0 0 16px var(--accent);
    animation: dotFlowVertical 1.8s ease-in-out infinite;
}

@keyframes dotFlowVertical {
    0% { 
        top: 0%; 
        opacity: 0;
    }
    15% {
        opacity: 1;
    }
    85% {
        opacity: 1;
    }
    100% { 
        top: 100%; 
        opacity: 0;
    }
}

/* Cloud pipeline arrows - horizontal flow */
.topo-cloud-arrow {
    position: relative;
}

.topo-cloud-arrow::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -5px;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 6px var(--primary), 0 0 12px var(--primary);
    animation: dotFlowHorizontal 1.5s ease-in-out infinite;
}

@keyframes dotFlowHorizontal {
    0% { 
        left: -5px; 
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    80% {
        opacity: 1;
    }
    100% { 
        left: calc(100% + 5px); 
        opacity: 0;
    }
}

/* Stagger the cloud arrows animation */
.topo-cloud-pipeline .topo-cloud-arrow:nth-child(2)::before {
    animation-delay: 0s;
}
.topo-cloud-pipeline .topo-cloud-arrow:nth-child(4)::before {
    animation-delay: 0.3s;
}
.topo-cloud-pipeline .topo-cloud-arrow:nth-child(6)::before {
    animation-delay: 0.6s;
}
.topo-cloud-pipeline .topo-cloud-arrow:nth-child(8)::before {
    animation-delay: 0.9s;
}

/* Stagger vertical connectors */
.topo-connector:nth-of-type(1) .topo-connector-line::before {
    animation-delay: 0s;
}
.topo-connector:nth-of-type(2) .topo-connector-line::before {
    animation-delay: 0.5s;
}
.topo-connector:nth-of-type(3) .topo-connector-line::before {
    animation-delay: 1s;
}

/* Mobile: vertical arrows flow downward */
@media (max-width: 768px) {
    .topo-cloud-arrow::before {
        top: -5px;
        left: 50%;
        transform: translateX(-50%);
        animation: dotFlowVertical 1.5s ease-in-out infinite;
    }
}

/* ==========================================================================
   FAQ SECTION
   ========================================================================== */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    padding: 28px;
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(0,210,255,0.3);
    transform: translateY(-2px);
}

.faq-question {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 14px;
}

.faq-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.faq-icon .lucide-faq {
    width: 24px;
    height: 24px;
    stroke-width: 1.5;
    color: var(--accent);
}

.faq-question h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin: 0;
    line-height: 1.4;
}

.faq-answer p {
    font-size: 0.9rem;
    color: var(--gray-3);
    line-height: 1.7;
    margin: 0;
    padding-left: 38px;
}

.faq-answer strong {
    color: var(--accent);
}

@media (max-width: 768px) {
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .faq-item { padding: 20px; }
    .faq-answer p { padding-left: 0; }
}

/* ==========================================================================
   TIMELINE & SLA SECTION
   ========================================================================== */
.timeline-flow {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    margin: 48px 0;
    flex-wrap: wrap;
}

.timeline-step {
    text-align: center;
    padding: 24px 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    min-width: 180px;
    max-width: 200px;
    transition: all 0.3s ease;
}

.timeline-step:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(0,210,255,0.4);
    transform: translateY(-4px);
}

.timeline-week {
    display: inline-block;
    background: var(--accent);
    color: var(--dark);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.timeline-icon {
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
}

.timeline-icon .lucide-timeline {
    width: 32px;
    height: 32px;
    stroke-width: 1.5;
    color: var(--accent);
}

.timeline-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}

.timeline-desc {
    font-size: 0.8rem;
    color: var(--gray-3);
    line-height: 1.5;
}

.timeline-connector {
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--primary));
    margin-top: 70px;
    border-radius: 2px;
    position: relative;
}

.timeline-connector::after {
    content: '→';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
    font-size: 1rem;
    font-weight: bold;
}

/* SLA Grid */
.sla-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
}

.sla-card {
    text-align: center;
    padding: 28px 20px;
    background: linear-gradient(135deg, rgba(0,210,255,0.08), rgba(0,255,136,0.05));
    border: 1px solid rgba(0,210,255,0.2);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.sla-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0,210,255,0.4);
    box-shadow: 0 8px 32px rgba(0,210,255,0.15);
}

.sla-icon {
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
}

.sla-icon .lucide-sla {
    width: 28px;
    height: 28px;
    stroke-width: 1.5;
    color: var(--accent);
}

.sla-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 4px;
}

.sla-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 8px;
}

.sla-desc {
    font-size: 0.75rem;
    color: var(--gray-3);
    line-height: 1.4;
}

@media (max-width: 992px) {
    .timeline-flow {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
    .timeline-step {
        min-width: 280px;
        max-width: 100%;
    }
    .timeline-connector {
        width: 3px;
        height: 30px;
        margin: 0;
    }
    .timeline-connector::after {
        content: '↓';
        right: 50%;
        top: auto;
        bottom: -12px;
        transform: translateX(50%);
    }
    .sla-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .sla-grid {
        grid-template-columns: 1fr;
    }
}