/* ===== VMIOT Website - Main Stylesheet ===== */
/* Design: Dark-tech hero + clean content, navy/teal gradient accent */

:root {
    --c-primary: #0f766e;
    --c-primary-light: #14b8a6;
    --c-primary-glow: rgba(20, 184, 166, 0.3);
    --c-navy: #0a0f1e;
    --c-navy-light: #111827;
    --c-dark: #0d1117;
    --c-dark-card: #161b22;
    --c-dark-border: #21262d;
    --c-text: #e6edf3;
    --c-text-muted: #8b949e;
    --c-text-dim: #6e7681;
    --c-white: #ffffff;
    --c-bg: #f8fafc;
    --c-bg-alt: #f1f5f9;
    --c-bg-dark: #0d1117;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --max-width: 1200px;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-sans);
    color: var(--c-dark);
    background: var(--c-white);
    line-height: 1.7;
    overflow-x: hidden;
}

a { color: var(--c-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-primary-light); }

img { max-width: 100%; display: block; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.bg-dark {
    background: var(--c-bg-dark);
    color: var(--c-text);
}

.bg-dark .section-title { color: var(--c-white); }
.bg-dark .section-subtitle { color: var(--c-text-muted); }

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    color: var(--c-dark);
}

.section-subtitle {
    text-align: center;
    color: var(--c-text-muted);
    font-size: 1.125rem;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
    color: var(--c-white);
    border-color: transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--c-primary-glow);
    color: var(--c-white);
}

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

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    color: var(--c-white);
}

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

.btn-block { width: 100%; }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 15, 30, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: all var(--transition);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

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

.navbar-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.navbar-title {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--c-primary-light), #5eead4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-sub {
    font-size: 0.7rem;
    color: var(--c-text-muted);
    letter-spacing: 0.1em;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.navbar-nav a {
    color: var(--c-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition);
}

.navbar-nav a:hover {
    color: var(--c-white);
}

.lang-toggle {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--c-text-muted);
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all var(--transition);
    text-decoration: none;
    display: inline-block;
    line-height: 1.5;
}

.lang-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--c-white);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--c-text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0f1e 0%, #0d1f2d 50%, #0a1a1f 100%);
    overflow: hidden;
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.hero-content {
    position: relative;
    text-align: center;
    z-index: 2;
    padding: 120px 24px 80px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.25);
    border-radius: 24px;
    color: var(--c-primary-light);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    margin-bottom: 32px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    color: var(--c-white);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--c-text-muted);
    max-width: 640px;
    margin: 0 auto 48px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Stats Bar ===== */
.stats-bar {
    background: var(--c-dark-card);
    border-top: 1px solid var(--c-dark-border);
    border-bottom: 1px solid var(--c-dark-border);
    padding: 40px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat-item { display: flex; flex-direction: column; align-items: center; gap: 4px; }

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--c-primary-light), #5eead4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-unit {
    font-size: 1.2rem;
    color: var(--c-text-muted);
    font-weight: 600;
}

.stat-label {
    color: var(--c-text-dim);
    font-size: 0.85rem;
    margin-top: 4px;
}

/* ===== Feature Cards ===== */
.features-section {
    background: var(--c-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--c-white);
    border-radius: var(--radius);
    padding: 36px 28px;
    border: 1px solid #e2e8f0;
    transition: all var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--c-primary-glow);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.1), rgba(20, 184, 166, 0.05));
    border-radius: var(--radius-sm);
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--c-dark);
}

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

/* ===== Platform Grid ===== */
.platform-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 16px;
}

.platform-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 28px 16px;
    background: var(--c-white);
    border-radius: var(--radius);
    border: 1px solid #e2e8f0;
    transition: all var(--transition);
    text-align: center;
}

.platform-card:hover {
    border-color: var(--c-primary-light);
    box-shadow: 0 4px 16px var(--c-primary-glow);
}

.platform-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
    border-radius: 10px;
    color: var(--c-white);
    font-weight: 800;
    font-size: 0.75rem;
    letter-spacing: 0.02em;
}

.platform-card span:last-child {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--c-dark);
}

/* ===== Code Showcase ===== */
.code-section {
    background: var(--c-bg-alt);
}

.code-showcase {
    max-width: 700px;
    margin: 0 auto;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: #1a1f2e;
    color: var(--c-text-muted);
    font-size: 0.85rem;
}

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

.code-dots i {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.code-dots i:nth-child(1) { background: #ff5f57; }
.code-dots i:nth-child(2) { background: #febc2e; }
.code-dots i:nth-child(3) { background: #28c840; }

.code-block {
    background: #0d1117;
    color: #c9d1d9;
    padding: 24px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
    margin: 0;
}

.code-block code {
    font-family: inherit;
}

/* ===== CTA Section ===== */
.cta-section {
    background: linear-gradient(135deg, #0a0f1e, #0d1f2d);
    text-align: center;
    padding: 100px 0;
}

.cta-content h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--c-white);
    margin-bottom: 16px;
}

.cta-content p {
    color: var(--c-text-muted);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

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

/* ===== Page Hero (sub-pages) ===== */
.page-hero {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, #0a0f1e, #0d1f2d);
    text-align: center;
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 900;
    color: var(--c-white);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.page-hero-sub {
    font-size: 1.15rem;
    color: var(--c-text-muted);
}

/* ===== Product Page ===== */
.product-overview-text h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.product-overview-text p {
    font-size: 1.05rem;
    color: var(--c-text-muted);
    margin-bottom: 16px;
    line-height: 1.8;
}

/* Architecture Diagram */
.arch-diagram {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.arch-layer {
    text-align: center;
    padding: 24px 20px;
    border-radius: var(--radius);
    border: 1px solid var(--c-dark-border);
}

.arch-layer h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.arch-app { background: rgba(20, 184, 166, 0.15); border-color: rgba(20, 184, 166, 0.3); }
.arch-runtime { background: rgba(59, 130, 246, 0.12); border-color: rgba(59, 130, 246, 0.25); }
.arch-middleware { background: rgba(168, 85, 247, 0.12); border-color: rgba(168, 85, 247, 0.25); }
.arch-hal { background: rgba(251, 146, 60, 0.12); border-color: rgba(251, 146, 60, 0.25); }
.arch-hardware { background: rgba(239, 68, 68, 0.12); border-color: rgba(239, 68, 68, 0.25); }

.arch-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.arch-tag {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--c-text);
}

.arch-arrow {
    text-align: center;
    color: var(--c-text-dim);
    font-size: 1.2rem;
    padding: 8px 0;
}

/* Capability Grid */
.capability-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.capability-card {
    background: var(--c-white);
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
    padding: 32px 24px;
    transition: all var(--transition);
}

.capability-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.capability-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--c-dark);
}

.capability-card ul {
    list-style: none;
    padding: 0;
}

.capability-card li {
    padding: 6px 0;
    font-size: 0.88rem;
    color: var(--c-text-muted);
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.capability-card li::before {
    content: "\2713";
    color: var(--c-primary);
    font-weight: 700;
    flex-shrink: 0;
}

/* Toolchain */
.toolchain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.toolchain-card {
    background: var(--c-dark-card);
    border: 1px solid var(--c-dark-border);
    border-radius: var(--radius);
    padding: 32px 24px;
}

.toolchain-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--c-primary-light);
    margin-bottom: 12px;
}

.toolchain-card p {
    color: var(--c-text-muted);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.code-mini {
    background: rgba(0, 0, 0, 0.3);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--c-text-dim);
}

/* ===== Advantages Page ===== */
.advantage-list {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.advantage-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 32px;
    align-items: start;
}

.advantage-num {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.advantage-content h2 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--c-dark);
}

.advantage-content p {
    font-size: 1.05rem;
    color: var(--c-text-muted);
    line-height: 1.8;
    margin-bottom: 20px;
}

/* Code Compare */
.code-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 20px;
}

.code-panel {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.code-panel h4 {
    padding: 10px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    background: #f1f5f9;
    border-bottom: 1px solid #e2e8f0;
    color: var(--c-text-muted);
}

.code-panel-vmiot h4 {
    background: rgba(20, 184, 166, 0.1);
    border-color: rgba(20, 184, 166, 0.2);
    color: var(--c-primary);
}

.code-panel pre {
    margin: 0;
    padding: 16px;
    background: #0d1117;
    color: #c9d1d9;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.7;
    overflow-x: auto;
}

.code-panel code {
    font-family: inherit;
}

/* Compare */
.advantage-compare {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.compare-item {
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    background: var(--c-bg);
    border: 1px solid #e2e8f0;
}

.compare-item.highlight {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.08), rgba(20, 184, 166, 0.03));
    border-color: rgba(20, 184, 166, 0.25);
}

.compare-label {
    display: block;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--c-primary);
    margin-bottom: 4px;
}

.compare-value {
    font-weight: 600;
    font-size: 1rem;
    color: var(--c-dark);
}

/* Protocol Tags */
.protocol-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.proto-tag {
    padding: 8px 18px;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.08), rgba(20, 184, 166, 0.03));
    border: 1px solid rgba(20, 184, 166, 0.2);
    border-radius: 24px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--c-primary);
}

/* ===== Solutions Page ===== */
.solution-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.solution-card {
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}

.solution-card:hover {
    box-shadow: var(--shadow-lg);
}

.solution-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px 32px;
    background: linear-gradient(135deg, rgba(10, 15, 30, 0.03), rgba(20, 184, 166, 0.03));
    border-bottom: 1px solid #e2e8f0;
}

.solution-icon-wrap {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.solution-icon-text {
    color: var(--c-white);
    font-weight: 800;
    font-size: 0.85rem;
}

.solution-header h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--c-dark);
    margin-bottom: 4px;
}

.solution-tagline {
    color: var(--c-text-muted);
    font-size: 0.9rem;
}

.solution-body {
    padding: 32px;
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 40px;
}

.solution-desc h4 {
    font-weight: 700;
    font-size: 0.95rem;
    margin: 20px 0 12px;
    color: var(--c-dark);
}

.solution-desc p {
    color: var(--c-text-muted);
    line-height: 1.8;
    font-size: 0.95rem;
}

.solution-desc ul {
    list-style: none;
    padding: 0;
}

.solution-desc li {
    padding: 6px 0;
    font-size: 0.88rem;
    color: var(--c-text-muted);
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.solution-desc li::before {
    content: "\2713";
    color: var(--c-primary);
    font-weight: 700;
    flex-shrink: 0;
}

.solution-tech h4 {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 16px;
    color: var(--c-dark);
}

/* Mini Architecture */
.mini-arch {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.mini-arch-layer {
    text-align: center;
    padding: 14px 16px;
    background: var(--c-bg);
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--c-dark);
}

.mini-arch-layer small {
    display: block;
    font-weight: 400;
    color: var(--c-text-muted);
    margin-top: 2px;
}

.mini-arch-arrow {
    text-align: center;
    color: var(--c-text-dim);
    padding: 4px 0;
}

/* ===== Contact Page ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 48px;
}

.contact-form-wrap h2 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.contact-form-wrap > p {
    color: var(--c-text-muted);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--c-dark);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: var(--font-sans);
    transition: border-color var(--transition);
    background: var(--c-white);
}

.form-input:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px var(--c-primary-glow);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-success {
    margin-top: 20px;
    padding: 16px 20px;
    background: rgba(20, 184, 166, 0.08);
    border: 1px solid rgba(20, 184, 166, 0.25);
    border-radius: var(--radius-sm);
    color: var(--c-primary);
    font-weight: 500;
}

/* Contact Info */
.contact-info-wrap {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-info-card {
    padding: 24px;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
}

.contact-info-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--c-dark);
}

.info-item {
    margin-bottom: 14px;
}

.info-item strong {
    display: block;
    font-size: 0.8rem;
    color: var(--c-text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-item p {
    font-size: 0.9rem;
    color: var(--c-dark);
}

/* Stats Mini */
.stats-mini {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.stats-mini-item {
    text-align: center;
    padding: 12px;
    background: var(--c-bg);
    border-radius: var(--radius-sm);
}

.stats-mini-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--c-primary);
}

.stats-mini-label {
    font-size: 0.7rem;
    color: var(--c-text-muted);
}

/* ===== Footer ===== */
.footer {
    background: var(--c-navy);
    color: var(--c-text);
    padding: 60px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    width: 48px;
    margin-bottom: 12px;
    border-radius: 8px;
}

.footer-company {
    font-size: 0.9rem;
    color: var(--c-text-muted);
    margin-bottom: 8px;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--c-text-dim);
}

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--c-text);
}

.footer-links a {
    display: block;
    color: var(--c-text-muted);
    font-size: 0.85rem;
    padding: 4px 0;
    text-decoration: none;
    transition: color var(--transition);
}

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

/* ===== Blazor Error UI ===== */
#blazor-error-ui {
    background: #1a1f2e;
    color: var(--c-text);
    bottom: 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.5);
    display: none;
    left: 0;
    padding: 1rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    font-size: 0.9rem;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

#blazor-error-ui .reload {
    color: var(--c-primary-light);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.feature-card,
.platform-card,
.capability-card,
.toolchain-card,
.solution-card,
.advantage-item {
    animation: fadeInUp 0.6s ease-out both;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .capability-grid { grid-template-columns: repeat(2, 1fr); }
    .toolchain-grid { grid-template-columns: repeat(2, 1fr); }
    .platform-grid { grid-template-columns: repeat(4, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .solution-body { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .code-compare { grid-template-columns: 1fr; }
}

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

    .navbar-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 15, 30, 0.98);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--transition);
        pointer-events: none;
    }

    .navbar-nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1rem; }
    .section { padding: 60px 0; }
    .section-title { font-size: 1.75rem; }

    .features-grid,
    .capability-grid,
    .toolchain-grid { grid-template-columns: 1fr; }

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

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }

    .advantage-item { grid-template-columns: 1fr; }
    .advantage-num { font-size: 2.5rem; }

    .footer-grid { grid-template-columns: 1fr; gap: 24px; }

    .page-hero { padding: 120px 0 40px; }
    .page-hero h1 { font-size: 2rem; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2rem; }
    .platform-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn-lg { width: 100%; }
}