/* =============================================
   OpenClaw Consulting — Style
   Based on openclaw.ai design system
   ============================================= */

:root {
    /* OpenClaw Colors */
    --bg-deep: #050810;
    --bg-surface: #0a0f1a;
    --bg-elevated: #111827;
    --coral-bright: #ff4d4d;
    --coral-mid: #e63946;
    --coral-dark: #991b1b;
    --cyan-bright: #00e5cc;
    --cyan-mid: #14b8a6;
    --cyan-glow: rgba(0, 229, 204, 0.4);
    --text-primary: #f0f4ff;
    --text-secondary: #8892b0;
    --text-muted: #5a6480;
    --border-subtle: rgba(136, 146, 176, 0.15);
    --border-accent: rgba(0, 229, 204, 0.3);
    --surface-card: rgba(10, 15, 26, 0.65);
    --surface-card-strong: rgba(10, 15, 26, 0.8);
    --surface-overlay: rgba(0, 0, 0, 0.3);
    --surface-interactive: rgba(255, 255, 255, 0.1);
    --surface-interactive-hover: rgba(255, 255, 255, 0.2);
    --surface-cyan-soft: rgba(0, 229, 204, 0.15);
    --surface-coral-soft: rgba(255, 77, 77, 0.15);

    /* Typography */
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

    /* Spacing */
    --section-pad: 120px;
    --section-pad-mobile: 64px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: var(--cyan-bright);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--cyan-mid);
}

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

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* =============================================
   Navigation
   ============================================= */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

.nav.scrolled {
    background: rgba(5, 8, 16, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

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

.logo-icon {
    font-size: 1.4rem;
}

.logo-dot {
    color: var(--cyan-bright);
}

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

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.nav-links .nav-cta {
    background: var(--cyan-bright);
    color: var(--bg-deep);
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600;
}

.nav-links .nav-cta:hover {
    background: var(--cyan-mid);
    color: var(--bg-deep);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(5, 8, 16, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    flex-direction: column;
    gap: 20px;
    z-index: 999;
    border-bottom: 1px solid var(--border-subtle);
}

.mobile-menu.open {
    display: flex;
}

.mobile-menu a {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
}

.mobile-menu .nav-cta {
    background: var(--cyan-bright);
    color: var(--bg-deep);
    padding: 12px 24px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
}

/* =============================================
   Hero
   ============================================= */

.hero {
    position: relative;
    padding: 160px 0 var(--section-pad);
    text-align: center;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse at center, rgba(0, 229, 204, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--surface-cyan-soft);
    border: 1px solid var(--border-accent);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--cyan-bright);
    margin-bottom: 32px;
    font-weight: 500;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

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

.hero-sub {
    max-width: 640px;
    margin: 0 auto 40px;
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--cyan-bright);
    color: var(--bg-deep);
}

.btn-primary:hover {
    background: var(--cyan-mid);
    color: var(--bg-deep);
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(0, 229, 204, 0.3);
}

.btn-secondary {
    background: var(--surface-interactive);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    background: var(--surface-interactive-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
}

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

.hero-trust {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.trust-icon {
    font-size: 1.1rem;
}

/* =============================================
   The Shift
   ============================================= */

.shift {
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--border-subtle);
}

.shift-content {
    max-width: 700px;
    margin: 0 auto;
}

.shift h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.shift p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.shift em {
    color: var(--text-primary);
    font-style: italic;
}

.shift-highlight {
    color: var(--cyan-bright) !important;
    font-size: 1.2rem !important;
    font-weight: 600;
    margin-top: 32px !important;
}

/* =============================================
   Features
   ============================================= */

.features {
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--border-subtle);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 32px 24px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: var(--surface-card-strong);
    border-color: var(--border-accent);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Architecture Diagram */
.architecture {
    margin-top: 80px;
}

.architecture h3 {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 40px;
}

.arch-diagram {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.arch-layer {
    width: 100%;
    padding: 24px 32px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-subtle);
}

.arch-you {
    background: var(--surface-cyan-soft);
    border-color: var(--border-accent);
}

.arch-channels {
    background: var(--surface-card);
}

.arch-core {
    background: linear-gradient(135deg, rgba(0, 229, 204, 0.1), rgba(255, 77, 77, 0.05));
    border-color: var(--border-accent);
}

.arch-integrations {
    background: var(--surface-card);
}

.arch-label {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.arch-sublabel {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

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

.arch-items span {
    padding: 4px 12px;
    background: var(--surface-interactive);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.arch-arrow {
    font-size: 1.5rem;
    color: var(--cyan-bright);
    padding: 8px 0;
    opacity: 0.6;
}

/* =============================================
   Process / How It Works
   ============================================= */

.process {
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--border-subtle);
}

.steps {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.step {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.step-number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--cyan-bright);
    opacity: 0.4;
    line-height: 1;
    min-width: 60px;
}

.step-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
}

/* =============================================
   Pricing
   ============================================= */

.pricing {
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--border-subtle);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 800px;
    margin: 0 auto 80px;
}

.price-card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 40px 32px;
    position: relative;
    transition: all 0.3s ease;
}

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

.price-card.featured {
    border-color: var(--border-accent);
    background: linear-gradient(180deg, rgba(0, 229, 204, 0.05), var(--surface-card));
}

.price-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--cyan-bright);
    color: var(--bg-deep);
    padding: 4px 16px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.price-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
}

.price-period {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 32px;
}

.price-features {
    list-style: none;
    margin-bottom: 32px;
}

.price-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
    padding-left: 24px;
}

.price-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--cyan-bright);
    font-weight: 600;
}

.price-features li:last-child {
    border-bottom: none;
}

/* Cost Transparency */
.costs {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.costs h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.costs > p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cost-table {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    overflow: hidden;
}

.cost-row {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-subtle);
    text-align: left;
    font-size: 0.95rem;
}

.cost-row:last-child {
    border-bottom: none;
}

.cost-header {
    background: var(--bg-elevated);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cost-row span:first-child {
    color: var(--text-primary);
    font-weight: 500;
}

.cost-row span:nth-child(2) {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.cost-row span:nth-child(3) {
    color: var(--text-muted);
}

.cost-free {
    color: var(--cyan-bright) !important;
}

.cost-total {
    background: var(--surface-cyan-soft);
    font-weight: 600;
}

.cost-total span {
    color: var(--text-primary) !important;
}

/* =============================================
   About
   ============================================= */

.about {
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--border-subtle);
}

.about-content {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 64px;
    align-items: start;
}

.about-text h2 {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-text em {
    color: var(--text-primary);
}

.about-signature {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.about-signature strong {
    font-size: 1.1rem;
}

.about-signature span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.about-aside {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.experience-card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 24px;
}

.experience-card h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 6px 14px;
    background: var(--surface-interactive);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.daily-list {
    list-style: none;
}

.daily-list li {
    padding: 6px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    position: relative;
    padding-left: 20px;
}

.daily-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--cyan-bright);
}

.linkedin-link {
    font-size: 0.9rem;
    color: var(--cyan-bright);
    font-weight: 500;
}

/* =============================================
   Principles
   ============================================= */

.principles {
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--border-subtle);
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.principle {
    padding: 32px;
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
}

.principle h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--cyan-bright);
}

.principle p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* =============================================
   FAQ
   ============================================= */

.faq {
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--border-subtle);
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-subtle);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.05rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-body);
    transition: color 0.2s ease;
}

.faq-question:hover {
    color: var(--cyan-bright);
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
    min-width: 24px;
    text-align: center;
}

.faq-item.open .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding-bottom: 24px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq-answer a {
    color: var(--cyan-bright);
}

/* =============================================
   Contact
   ============================================= */

.contact {
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--border-subtle);
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-content h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.contact-content > p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.contact-methods {
    display: flex;
    gap: 24px;
    justify-content: center;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 32px 48px;
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.contact-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    color: var(--text-primary);
}

.contact-icon {
    font-size: 2rem;
}

.contact-label {
    font-weight: 600;
    font-size: 1rem;
}

.contact-value {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* =============================================
   Footer
   ============================================= */

.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-subtle);
}

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

.footer-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-logo {
    font-weight: 600;
    font-size: 0.95rem;
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-right {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-right a {
    color: var(--cyan-bright);
}

/* =============================================
   Responsive
   ============================================= */

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

    .about-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

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

@media (max-width: 768px) {
    :root {
        --section-pad: var(--section-pad-mobile);
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 120px 0 var(--section-pad-mobile);
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-sub {
        font-size: 1rem;
    }

    .hero-trust {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

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

    .step {
        flex-direction: column;
        gap: 12px;
    }

    .step-number {
        font-size: 2rem;
    }

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

    .cost-row {
        grid-template-columns: 1fr 1fr;
        gap: 4px;
    }

    .cost-row span:nth-child(3) {
        grid-column: 1 / -1;
        font-size: 0.8rem;
    }

    .contact-methods {
        flex-direction: column;
    }

    .contact-card {
        padding: 24px;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

    .price {
        font-size: 2.5rem;
    }

    .about-text h2 {
        font-size: 1.5rem;
    }
}