/* ═══════════════════════════════════════════════════════════════════════════
   NorthArc — Premium Design System
   Theme: Pure black (#000) + Deep navy-to-electric blue gradient
   Matching brand logo color palette exactly
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ─── Design Tokens ──────────────────────────────────────────────────────── */
:root {
    /* Backgrounds - from logo's black canvas */
    --bg-void: #000000;
    --bg-deep: #030810;
    --bg-primary: #050A15;
    --bg-card: rgba(8, 18, 38, 0.65);
    --bg-card-solid: #081226;
    --bg-elevated: rgba(12, 24, 50, 0.8);

    /* Blues - sampled directly from logo gradient */
    --blue-900: #0A1628;
    --blue-800: #0E2040;
    --blue-700: #132E5C;
    --blue-600: #1654A8;
    --blue-500: #1D75FF;
    --blue-400: #4DA6FF;
    --blue-300: #64B5F6;
    --blue-200: #90CAF9;
    --blue-glow: rgba(29, 117, 255, 0.5);

    /* Text */
    --text-white: #FFFFFF;
    --text-primary: #E8ECF1;
    --text-secondary: #8A9AB5;
    --text-muted: #566580;

    /* Borders & Effects */
    --border-subtle: rgba(29, 117, 255, 0.1);
    --border-medium: rgba(29, 117, 255, 0.2);
    --border-active: rgba(77, 166, 255, 0.5);
    --shadow-blue: 0 4px 30px rgba(29, 117, 255, 0.15);
    --shadow-glow: 0 0 30px rgba(29, 117, 255, 0.25);
    --shadow-card: 0 8px 40px rgba(0, 0, 0, 0.4);

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;

    /* Motion */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-smooth: cubic-bezier(0.25, 0.8, 0.25, 1);
    --duration-fast: 0.2s;
    --duration-normal: 0.35s;
    --duration-slow: 0.6s;

    /* Layout */
    --max-width: 1280px;
    --section-padding: clamp(4rem, 8vh, 8rem);
    --side-padding: clamp(1.5rem, 5vw, 5%);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: var(--bg-void);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    overflow-x: hidden;
}

::selection {
    background: var(--blue-500);
    color: var(--text-white);
}

/* ─── Scrollbar ──────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-void); }
::-webkit-scrollbar-thumb { background: var(--blue-900); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue-600); }

/* ─── Canvas Background ─────────────────────────────────────────────────── */
#neural-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: auto;
}

.app-wrapper {
    position: relative;
    z-index: 1;
}

/* ─── Loading Screen ─────────────────────────────────────────────────────── */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-void);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.6s var(--ease-out), visibility 0.6s;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 2rem;
    animation: pulseGlow 2s ease-in-out infinite;
}

.loader-bar {
    width: 200px;
    height: 2px;
    background: var(--blue-900);
    border-radius: 1px;
    overflow: hidden;
}

.loader-bar-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
    border-radius: 1px;
    animation: loadFill 1.8s var(--ease-out) forwards;
}

/* ─── Typography ─────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-body);
    font-weight: 700;
    color: var(--text-white);
    letter-spacing: -0.02em;
    line-height: 1.15;
}

p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.75;
}

a {
    color: inherit;
    text-decoration: none;
}

.gradient-text {
    background: linear-gradient(135deg, var(--text-white) 0%, var(--blue-400) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blue-gradient-text {
    background: linear-gradient(135deg, var(--blue-500) 0%, var(--blue-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-label {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--blue-400);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.section-label::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--blue-500);
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 4rem;
}

.section-header .section-label {
    justify-content: center;
}

.section-header .section-label::before { display: none; }

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1.2rem;
}

.section-header p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ─── Glass Panel ────────────────────────────────────────────────────────── */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    transition: border-color var(--duration-normal) var(--ease-smooth),
                box-shadow var(--duration-normal) var(--ease-smooth),
                transform var(--duration-normal) var(--ease-smooth);
}

.glass:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-blue);
}

.glass-active {
    border-color: var(--border-active);
    box-shadow: var(--shadow-glow);
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 2rem;
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-smooth);
    border: none;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue-500) 0%, var(--blue-600) 100%);
    color: var(--text-white);
    box-shadow: 0 4px 20px rgba(29, 117, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(29, 117, 255, 0.45);
    background: linear-gradient(135deg, var(--blue-400) 0%, var(--blue-500) 100%);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    transform: translateY(-2px);
    border-color: var(--blue-400);
    color: var(--blue-400);
    box-shadow: 0 4px 20px rgba(29, 117, 255, 0.15);
}

/* ─── Header & Navigation ────────────────────────────────────────────────── */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.2rem var(--side-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.site-header.scrolled {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.8rem var(--side-padding);
}

/* Logo */
.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 44px;
    object-fit: contain;
    border-radius: 4px;
    transition: transform var(--duration-fast) var(--ease-smooth);
}

.logo-img:hover {
    transform: scale(1.02);
}

/* Nav */
.main-nav {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.3rem;
}

.nav-menu a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 8px;
    transition: all var(--duration-fast) var(--ease-smooth);
}

.nav-menu a:hover {
    color: var(--text-white);
    background: rgba(29, 117, 255, 0.08);
}

.nav-menu a.active {
    color: var(--blue-400);
}

.nav-cta-btn {
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
    color: var(--text-white);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 8px;
    text-decoration: none;
    transition: all var(--duration-normal) var(--ease-smooth);
    box-shadow: 0 2px 15px rgba(29, 117, 255, 0.25);
}

.nav-cta-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 25px rgba(29, 117, 255, 0.4);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-white);
    border-radius: 1px;
    transition: all var(--duration-normal) var(--ease-smooth);
    transform-origin: center;
}

.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ─── Sections ───────────────────────────────────────────────────────────── */
.section {
    padding: var(--section-padding) var(--side-padding);
    max-width: var(--max-width);
    margin: 0 auto;
    position: relative;
}

.section-full {
    padding: var(--section-padding) var(--side-padding);
    position: relative;
}

.section-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
    margin: 0 auto;
    max-width: var(--max-width);
}

/* ─── Scroll Reveal Animation ────────────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ─── Hero Section ───────────────────────────────────────────────────────── */
#home {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

.hero-content {
    max-width: 640px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 1rem 0.4rem 0.5rem;
    background: rgba(29, 117, 255, 0.08);
    border: 1px solid var(--border-subtle);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--blue-400);
    margin-bottom: 2rem;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--blue-500);
    border-radius: 50%;
    animation: pulseGlow 2s ease-in-out infinite;
    box-shadow: 0 0 8px var(--blue-500);
}

.hero-title {
    font-size: clamp(2.8rem, 5vw, 4.2rem);
    font-weight: 800;
    line-height: 1.08;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero-title .highlight {
    position: relative;
    white-space: nowrap;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 0.05em;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--blue-500), var(--blue-300));
    border-radius: 2px;
    opacity: 0.6;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 520px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border-subtle);
}

.hero-stat-item {
    display: flex;
    flex-direction: column;
}

.hero-stat-num {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--blue-400);
}

.hero-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    width: 100%;
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-orb {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle at 40% 40%, var(--blue-600), var(--blue-900) 60%, transparent 70%);
    position: relative;
    box-shadow: 0 0 60px rgba(29, 117, 255, 0.15), inset 0 0 40px rgba(29, 117, 255, 0.1);
    animation: orbFloat 8s ease-in-out infinite;
}

.hero-orb::before {
    content: '';
    position: absolute;
    top: -30px;
    left: -30px;
    right: -30px;
    bottom: -30px;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    animation: rotateOrbit 25s linear infinite;
}

.hero-orb::after {
    content: '';
    position: absolute;
    top: -60px;
    left: -60px;
    right: -60px;
    bottom: -60px;
    border-radius: 50%;
    border: 1px dashed rgba(29, 117, 255, 0.08);
    animation: rotateOrbit 40s linear infinite reverse;
}

.orb-core {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: var(--blue-400);
    box-shadow: 0 0 30px var(--blue-400), 0 0 60px rgba(77, 166, 255, 0.3);
    animation: coreGlow 3s ease-in-out infinite alternate;
}

.orbit-node {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--blue-500);
    box-shadow: 0 0 15px var(--blue-500);
}

.orbit-node:nth-child(2) { top: -10px; left: 50%; animation: orbFloat 6s ease-in-out infinite 0.5s; }
.orbit-node:nth-child(3) { top: 50%; right: -10px; animation: orbFloat 7s ease-in-out infinite 1s; }
.orbit-node:nth-child(4) { bottom: -10px; left: 50%; animation: orbFloat 5s ease-in-out infinite 1.5s; }
.orbit-node:nth-child(5) { top: 50%; left: -10px; animation: orbFloat 8s ease-in-out infinite 2s; }

/* Floating decorative nodes around hero visual */
.float-node {
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--blue-500);
    opacity: 0.4;
    box-shadow: 0 0 10px rgba(29, 117, 255, 0.3);
}

.float-node:nth-child(6) { top: 10%; left: 20%; animation: drift 12s linear infinite; }
.float-node:nth-child(7) { top: 30%; right: 10%; animation: drift 15s linear infinite 2s; width: 5px; height: 5px; }
.float-node:nth-child(8) { bottom: 15%; left: 10%; animation: drift 10s linear infinite 4s; width: 6px; height: 6px; }
.float-node:nth-child(9) { bottom: 30%; right: 20%; animation: drift 14s linear infinite 1s; }

/* ─── About Section ──────────────────────────────────────────────────────── */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-content h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 1.5rem;
}

.about-content p {
    margin-bottom: 1.2rem;
}

.about-content p:last-of-type {
    margin-bottom: 2rem;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-top: 1.5rem;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.2rem;
    border-radius: 12px;
    background: rgba(29, 117, 255, 0.03);
    border: 1px solid transparent;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.value-item:hover {
    border-color: var(--border-subtle);
    background: rgba(29, 117, 255, 0.06);
}

.value-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(29, 117, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-400);
    flex-shrink: 0;
    font-size: 1rem;
}

.value-text h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.value-text p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.metric-card {
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--blue-500), transparent);
    opacity: 0;
    transition: opacity var(--duration-normal);
}

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

.metric-value {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--blue-400);
    margin-bottom: 0.4rem;
    line-height: 1;
}

.metric-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 0.4rem;
}

.metric-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ─── Services Section ───────────────────────────────────────────────────── */
.services-filter {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.2rem;
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-smooth);
    letter-spacing: 0.02em;
}

.filter-btn:hover {
    border-color: var(--border-medium);
    color: var(--text-white);
}

.filter-btn.active {
    background: var(--blue-500);
    border-color: var(--blue-500);
    color: var(--text-white);
    box-shadow: 0 2px 12px rgba(29, 117, 255, 0.3);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.service-card {
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
    transition: width 0.5s var(--ease-out);
}

.service-card:hover::after {
    width: 100%;
}

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

.service-icon-wrap {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(29, 117, 255, 0.1), rgba(29, 117, 255, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--blue-400);
    transition: all var(--duration-normal) var(--ease-smooth);
}

.service-card:hover .service-icon-wrap {
    background: linear-gradient(135deg, rgba(29, 117, 255, 0.2), rgba(29, 117, 255, 0.1));
    box-shadow: 0 0 20px rgba(29, 117, 255, 0.15);
}

.service-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ─── Solutions Section ──────────────────────────────────────────────────── */
.solutions-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 2rem;
    min-height: 520px;
}

.solutions-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sol-nav-btn {
    padding: 1rem 1.2rem;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-smooth);
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.sol-nav-btn:hover {
    border-color: var(--border-medium);
    color: var(--text-white);
}

.sol-nav-btn.active {
    background: rgba(29, 117, 255, 0.08);
    border-color: var(--blue-500);
    color: var(--blue-400);
}

.sol-nav-btn small {
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sol-panel {
    display: none;
    animation: fadeSlideUp 0.5s var(--ease-out);
}

.sol-panel.active {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.sol-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.sol-info p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.sol-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.sol-features li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sol-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--blue-500);
    flex-shrink: 0;
    box-shadow: 0 0 6px var(--blue-500);
}

/* Demo Windows */
.demo-window {
    background: var(--bg-deep);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.demo-titlebar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.7rem 1rem;
    background: rgba(5, 10, 21, 0.8);
    border-bottom: 1px solid var(--border-subtle);
}

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

.demo-dots-row span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.demo-dots-row span:nth-child(1) { background: #ff5f57; }
.demo-dots-row span:nth-child(2) { background: #ffbd2e; }
.demo-dots-row span:nth-child(3) { background: #28c840; }

.demo-titlebar-text {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.demo-content {
    padding: 1.5rem;
    min-height: 320px;
    display: flex;
    flex-direction: column;
}

/* Agent Simulation */
.agent-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    flex-grow: 1;
}

.agent-steps::before {
    content: '';
    position: absolute;
    left: 19px;
    top: 20px;
    bottom: 60px;
    width: 2px;
    background: var(--border-subtle);
}

.agent-step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    opacity: 0.35;
    transition: all var(--duration-normal) var(--ease-smooth);
    position: relative;
    z-index: 1;
}

.agent-step.running { opacity: 1; }
.agent-step.done { opacity: 0.75; }

.agent-step-dot {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card-solid);
    border: 2px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.agent-step.running .agent-step-dot {
    border-color: var(--blue-400);
    color: var(--blue-400);
    box-shadow: 0 0 15px rgba(29, 117, 255, 0.3);
}

.agent-step.done .agent-step-dot {
    background: var(--blue-500);
    border-color: var(--blue-400);
    color: var(--text-white);
}

.agent-step-info h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
}

.agent-step-info p {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0;
}

.agent-step-status {
    font-family: var(--font-display);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    margin-top: 0.3rem;
    display: inline-block;
}

.st-idle { background: rgba(255,255,255,0.03); color: var(--text-muted); }
.st-run { background: rgba(29, 117, 255, 0.15); color: var(--blue-400); animation: blink 1.2s infinite alternate; }
.st-ok { background: rgba(40, 200, 64, 0.15); color: #28c840; }

.run-agent-btn {
    margin-top: 1rem;
    width: 100%;
    padding: 0.7rem;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.run-agent-btn:hover {
    border-color: var(--blue-400);
    color: var(--blue-400);
    box-shadow: 0 0 15px rgba(29, 117, 255, 0.15);
}

/* Chat Demo */
.chat-messages {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    overflow-y: auto;
    margin-bottom: 1rem;
    max-height: 240px;
    padding-right: 0.3rem;
}

.chat-msg {
    max-width: 80%;
    padding: 0.7rem 1rem;
    border-radius: 10px;
    font-size: 0.85rem;
    line-height: 1.5;
}

.chat-msg.bot {
    background: rgba(29, 117, 255, 0.06);
    border: 1px solid var(--border-subtle);
    align-self: flex-start;
    color: var(--text-secondary);
}

.chat-msg.user {
    background: var(--blue-900);
    border: 1px solid var(--border-medium);
    align-self: flex-end;
    color: var(--text-primary);
}

.chat-input-row {
    display: flex;
    gap: 0.5rem;
}

.chat-input-row input {
    flex: 1;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 0.6rem 1rem;
    color: var(--text-white);
    font-size: 0.85rem;
    font-family: var(--font-body);
    outline: none;
    transition: border-color var(--duration-fast);
}

.chat-input-row input:focus {
    border-color: var(--blue-500);
}

.chat-input-row input::placeholder {
    color: var(--text-muted);
}

.chat-send-btn {
    width: 40px;
    height: 40px;
    background: var(--blue-500);
    border: none;
    border-radius: 8px;
    color: var(--text-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-fast);
    flex-shrink: 0;
}

.chat-send-btn:hover {
    background: var(--blue-400);
}

/* ROI Calculator */
.roi-calc {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.roi-slider-group label {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

.roi-slider-group label span:first-child { color: var(--text-secondary); }
.roi-slider-group label span:last-child { color: var(--blue-400); font-family: var(--font-display); font-weight: 600; }

.roi-slider-group input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--blue-900);
    outline: none;
}

.roi-slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--blue-400);
    cursor: pointer;
    box-shadow: 0 0 8px var(--blue-glow);
}

.roi-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.roi-result-card {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-subtle);
    padding: 1.2rem;
    border-radius: 10px;
    text-align: center;
}

.roi-result-val {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--blue-400);
}

.roi-result-lbl {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.3rem;
}

/* OCR Demo */
.ocr-demo {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
}

.ocr-doc-area {
    border: 1px dashed var(--border-medium);
    border-radius: 8px;
    padding: 1.5rem;
    background: rgba(255,255,255,0.01);
    position: relative;
    overflow: hidden;
    font-family: var(--font-display);
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--text-muted);
}

.scan-line {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 2px;
    background: var(--blue-400);
    box-shadow: 0 0 8px var(--blue-400);
    animation: scanMove 3.5s ease-in-out infinite;
}

.ocr-output {
    border: 1px solid var(--border-subtle);
    background: var(--bg-card-solid);
    border-radius: 8px;
    padding: 1rem;
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--blue-400);
    white-space: pre-wrap;
    min-height: 100px;
    flex-grow: 1;
}

/* ─── Industries Section ─────────────────────────────────────────────────── */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.industry-card {
    padding: 2rem;
    text-align: center;
    position: relative;
}

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

.industry-emoji {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: block;
}

.industry-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.6rem;
    font-weight: 600;
}

.industry-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.2rem;
    line-height: 1.6;
}

.industry-metric {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--blue-400);
    padding-top: 1rem;
    border-top: 1px solid var(--border-subtle);
}

/* ─── Tech Stack Section ─────────────────────────────────────────────────── */
.tech-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: start;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

.tech-item {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    cursor: pointer;
    padding: 0.8rem;
    border-radius: 12px;
    background: rgba(8, 18, 38, 0.4);
    border: 1px solid var(--border-subtle);
    transition: all var(--duration-normal) var(--ease-smooth);
}

.tech-item:hover {
    border-color: var(--border-medium);
    transform: translateY(-2px);
}

.tech-item.active {
    border-color: var(--blue-500);
    box-shadow: 0 0 20px rgba(29, 117, 255, 0.15);
    background: rgba(29, 117, 255, 0.06);
}

.tech-item img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    opacity: 0.6;
    transition: opacity var(--duration-fast);
}

.tech-item:hover img,
.tech-item.active img {
    opacity: 1;
}

.tech-item span {
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
    transition: color var(--duration-fast);
}

.tech-item.active span {
    color: var(--blue-400);
}

.tech-detail {
    padding: 2rem;
    min-height: 200px;
    transition: opacity 0.3s, transform 0.3s;
}

.tech-detail h3 {
    font-size: 1.5rem;
    color: var(--blue-400);
    margin-bottom: 0.3rem;
}

.tech-detail .tech-cat {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.2rem;
}

.tech-detail p {
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ─── Process Section ────────────────────────────────────────────────────── */
.process-track {
    position: relative;
    display: flex;
    justify-content: space-between;
    max-width: 1000px;
    margin: 4rem auto 0;
}

.process-track::before {
    content: '';
    position: absolute;
    top: 35px;
    left: 5%;
    width: 90%;
    height: 2px;
    background: var(--border-subtle);
}

.process-line {
    position: absolute;
    top: 35px;
    left: 5%;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
    box-shadow: 0 0 10px rgba(29, 117, 255, 0.3);
    transition: width 1s var(--ease-out);
}

.process-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
    width: 16%;
    cursor: pointer;
}

.process-circle {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: var(--bg-deep);
    border: 2px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 1.2rem;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.process-node:hover .process-circle {
    border-color: var(--blue-500);
    color: var(--blue-500);
}

.process-node.lit .process-circle {
    border-color: var(--blue-400);
    color: var(--blue-400);
    box-shadow: 0 0 20px rgba(29, 117, 255, 0.25);
    background: var(--bg-primary);
}

.process-node h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    text-align: center;
}

.process-node p {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    max-width: 140px;
}

/* ─── Contact Section ────────────────────────────────────────────────────── */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    margin-bottom: 1rem;
}

.contact-info > p {
    margin-bottom: 2.5rem;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(29, 117, 255, 0.08);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-400);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-card-text h4 {
    font-size: 0.75rem;
    font-family: var(--font-display);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.15rem;
    font-weight: 500;
}

.contact-card-text p {
    font-size: 0.95rem;
    color: var(--text-white);
    margin: 0;
}

/* Contact Form */
.contact-form-panel {
    padding: 2.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
    margin-bottom: 1.2rem;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-field.full {
    grid-column: span 2;
}

.form-field label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.form-field input,
.form-field textarea,
.form-field select {
    background: rgba(5, 10, 21, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 0.8rem 1rem;
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--duration-fast) var(--ease-smooth), box-shadow var(--duration-fast);
    -webkit-appearance: none;
}

.form-field select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A9AB5' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-field select option {
    background: var(--bg-deep);
    color: var(--text-white);
}

.form-field textarea {
    min-height: 110px;
    resize: vertical;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
    color: var(--text-muted);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    border-color: var(--blue-500);
    box-shadow: 0 0 12px rgba(29, 117, 255, 0.1);
}

.submit-btn {
    width: 100%;
    padding: 0.9rem;
    background: linear-gradient(135deg, var(--blue-500) 0%, var(--blue-600) 100%);
    border: none;
    border-radius: 10px;
    color: var(--text-white);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-smooth);
    box-shadow: 0 4px 20px rgba(29, 117, 255, 0.25);
    margin-top: 0.5rem;
}

.submit-btn:hover {
    box-shadow: 0 6px 30px rgba(29, 117, 255, 0.4);
    transform: translateY(-1px);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.form-status-msg {
    margin-top: 1rem;
    font-family: var(--font-display);
    font-size: 0.85rem;
    text-align: center;
    min-height: 24px;
    transition: color var(--duration-fast);
}

/* ─── Footer ─────────────────────────────────────────────────────────────── */
.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--border-subtle);
    padding: 4rem var(--side-padding) 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    max-width: var(--max-width);
    margin: 0 auto 3rem;
}

.footer-brand-col p {
    font-size: 0.9rem;
    margin-top: 1rem;
    max-width: 280px;
}

.footer-col h4 {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--blue-400);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1.2rem;
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer-col a {
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: color var(--duration-fast);
}

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

.footer-bottom-bar {
    max-width: var(--max-width);
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(29, 117, 255, 0.06);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom-bar p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-social {
    display: flex;
    gap: 1.5rem;
}

.footer-social a {
    color: var(--text-muted);
    font-size: 1.1rem;
    transition: color var(--duration-fast);
}

.footer-social a:hover {
    color: var(--blue-400);
}

/* ─── Scroll-to-top button ───────────────────────────────────────────────── */
.scroll-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-subtle);
    color: var(--blue-400);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-smooth);
    transform: translateY(10px);
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    border-color: var(--blue-500);
    box-shadow: 0 0 15px rgba(29, 117, 255, 0.2);
}

/* ─── Animations ─────────────────────────────────────────────────────────── */
@keyframes pulseGlow {
    0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--blue-500); }
    50% { opacity: 0.6; box-shadow: 0 0 20px var(--blue-500); }
}

@keyframes loadFill {
    0% { width: 0%; }
    50% { width: 60%; }
    100% { width: 100%; }
}

@keyframes orbFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

@keyframes rotateOrbit {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes coreGlow {
    0% { box-shadow: 0 0 20px var(--blue-400), 0 0 40px rgba(77, 166, 255, 0.2); }
    100% { box-shadow: 0 0 35px var(--blue-400), 0 0 70px rgba(77, 166, 255, 0.35); }
}

@keyframes drift {
    0% { transform: translate(0, 0); opacity: 0.3; }
    25% { transform: translate(10px, -10px); opacity: 0.5; }
    50% { transform: translate(-5px, -20px); opacity: 0.2; }
    75% { transform: translate(-15px, -5px); opacity: 0.4; }
    100% { transform: translate(0, 0); opacity: 0.3; }
}

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes blink {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

@keyframes scanMove {
    0% { top: 0; }
    50% { top: calc(100% - 2px); }
    100% { top: 0; }
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-content { max-width: 100%; margin: 0 auto; }
    .hero-desc { margin: 0 auto 2.5rem; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { height: 350px; }

    .about-layout { grid-template-columns: 1fr; gap: 3rem; }
    .tech-layout { grid-template-columns: 1fr; gap: 2rem; }
    .contact-layout { grid-template-columns: 1fr; }

    .solutions-layout { grid-template-columns: 1fr; }
    .solutions-nav { flex-direction: row; overflow-x: auto; padding-bottom: 0.5rem; }
    .sol-nav-btn { white-space: nowrap; min-width: 150px; }

    .process-track {
        flex-direction: column;
        gap: 2rem;
        align-items: flex-start;
        padding-left: 3rem;
    }

    .process-track::before {
        left: 35px;
        top: 0;
        width: 2px;
        height: 100%;
    }

    .process-line {
        left: 35px;
        top: 0;
        width: 2px !important;
        transition: height 1s var(--ease-out);
    }

    .process-node {
        flex-direction: row;
        gap: 1.5rem;
        width: 100%;
    }

    .process-circle {
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .process-node p { text-align: left; }
    .process-node h3 { text-align: left; }

    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .mobile-toggle { display: flex; }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: rgba(3, 8, 16, 0.98);
        backdrop-filter: blur(20px);
        border-left: 1px solid var(--border-subtle);
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem 2rem 2rem;
        gap: 2rem;
        transition: right var(--duration-normal) var(--ease-smooth);
        z-index: 999;
    }

    .main-nav.open { right: 0; }

    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }

    .nav-menu a {
        font-size: 1rem;
        padding: 0.8rem 1rem;
        width: 100%;
    }

    .nav-cta-btn {
        width: 100%;
        text-align: center;
        padding: 0.8rem;
    }

    .hero-title { font-size: 2.4rem; }
    .hero-actions { flex-direction: column; }
    .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
    .hero-visual { height: 280px; }
    .hero-orb { width: 140px; height: 140px; }
    .orb-core { width: 28px; height: 28px; }

    .services-grid { grid-template-columns: 1fr; }
    .sol-panel.active { grid-template-columns: 1fr; }

    .form-row { grid-template-columns: 1fr; }
    .form-field.full { grid-column: span 1; }
    .contact-form-panel { padding: 1.5rem; }

    .tech-grid { grid-template-columns: repeat(3, 1fr); }

    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom-bar { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2rem; }
    .metrics-grid { grid-template-columns: 1fr; }
    .roi-results { grid-template-columns: 1fr; }
    .services-filter { gap: 0.3rem; }
    .filter-btn { padding: 0.4rem 0.8rem; font-size: 0.75rem; }
}