:root {
    --primary-dark: #2A2E4E;
    --accent: #5C6DB8;
    --accent-hover: #4A5AA0;
    --accent-muted: #8B7BAF;
    --accent-tint: rgba(92, 109, 184, 0.09);
    --bg-page: #F4F4FA;
    --bg-white: #FFFFFF;
    --text-dark: #1A1B2E;
    --text-muted: #5A5A72;
    --border-color: #DDDDE8;
    --shadow-sm: 0 1px 3px 0 rgba(42, 46, 78, 0.07);
    --shadow-md: 0 4px 16px 0 rgba(42, 46, 78, 0.10);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-dark);
    line-height: 1.75;
    background-color: var(--bg-page);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ─── Typography ──────────────────────────────────────── */
h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.04em;
    color: var(--text-dark);
}

h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.025em;
    color: var(--text-dark);
}

h3 {
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dark);
}

p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 24px;
    line-height: 1.75;
}

/* ─── Buttons ─────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 26px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.18s ease;
    cursor: pointer;
    border: none;
    letter-spacing: -0.01em;
}

.btn-primary {
    background-color: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background-color: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary.btn-light {
    color: var(--text-dark);
    border: 1px solid var(--border-color);
}

.btn-secondary.btn-light:hover {
    background-color: var(--bg-page);
}

.btn-block {
    width: 100%;
    padding: 15px;
    font-size: 1rem;
}

/* ─── Header ──────────────────────────────────────────── */
.header {
    padding: 20px 0;
    background-color: var(--primary-dark);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.03em;
    text-decoration: none;
}

/* ─── Hero ────────────────────────────────────────────── */
.hero {
    padding: 120px 0 110px;
    text-align: center;
    background-color: var(--primary-dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.hero-container {
    max-width: 820px;
}

/* Eyebrow label */
.hero-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-muted);
    margin-bottom: 24px;
}

/* Split headline */
.hero h1 {
    color: #fff;
    font-size: 3.75rem;
}

.hero-title-light {
    font-weight: 300;
    color: rgba(255, 255, 255, 0.75);
}

.hero-title-bold {
    font-weight: 800;
    color: #fff;
}

.hero p {
    font-size: 1.15rem;
    max-width: 580px;
    margin: 28px auto 40px auto;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.7;
}

/* ─── Section shared ──────────────────────────────────── */
.section {
    padding: 96px 0;
    background-color: var(--bg-white);
}

.section-alt {
    background-color: var(--bg-page);
}

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

.section-title p {
    margin-top: 12px;
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

/* ─── Problem Cards ───────────────────────────────────── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.feature-card {
    padding: 40px 36px;
    background-color: var(--bg-white);
    border: none;
    transition: background-color 0.2s ease;
}

.feature-card:hover {
    background-color: var(--bg-page);
}

.section-alt .features-grid {
    border-color: #CFCFDF;
}

.section-alt .feature-card {
    background-color: var(--bg-page);
}

.section-alt .feature-card:hover {
    background-color: #EAEAF2;
}

.feature-icon {
    font-size: 1.5rem;
    margin-bottom: 20px;
    display: block;
}

/* ─── Numbered Services Grid ──────────────────────────── */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.service-item {
    padding: 48px 44px;
    background-color: var(--bg-white);
    transition: background-color 0.2s ease;
    position: relative;
}

.service-item:hover {
    background-color: var(--bg-page);
}

.service-numeral {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    color: var(--accent-muted);
    opacity: 0.35;
    margin-bottom: 20px;
    letter-spacing: -0.04em;
}

.service-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    letter-spacing: -0.015em;
    text-transform: none;
}

.service-desc {
    font-size: 0.975rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ─── Differentiators Section ─────────────────────────── */
.diff-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.diff-item {
    border-top: 2px solid var(--accent);
    padding-top: 28px;
}

.diff-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
    text-transform: none;
}

.diff-desc {
    font-size: 0.975rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ─── Process Steps ───────────────────────────────────── */
.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.process-step {
    padding: 40px 36px;
    text-align: center;
    background-color: var(--bg-page);
    transition: background-color 0.2s ease;
}

.process-step:hover {
    background-color: #EAEAF2;
}

.process-step-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    text-transform: none;
    letter-spacing: -0.01em;
}

.process-step-desc {
    font-size: 0.975rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ─── CTA Band ────────────────────────────────────────── */
.cta-band {
    padding: 96px 0;
    background-color: var(--primary-dark);
    text-align: center;
}

.cta-band h2 {
    color: #fff;
    font-size: 2.75rem;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.cta-band p {
    color: rgba(255, 255, 255, 0.55);
    font-size: 1.15rem;
    max-width: 480px;
    margin: 0 auto;
}

/* ─── Lead Capture ────────────────────────────────────── */
.lead-capture {
    padding: 96px 0;
    background-color: var(--bg-page);
}

.form-container {
    display: flex;
    justify-content: center;
}

.form-wrapper {
    background-color: var(--bg-white);
    padding: 52px 48px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 520px;
    text-align: center;
}

.form-wrapper h2 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.form-wrapper > p {
    margin-bottom: 36px;
    font-size: 0.975rem;
    color: var(--text-muted);
}

.lead-form {
    text-align: left;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 7px;
    color: var(--text-dark);
    font-size: 0.875rem;
    letter-spacing: -0.005em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.975rem;
    color: var(--text-dark);
    transition: border-color 0.15s, box-shadow 0.15s;
    background-color: var(--bg-white);
    resize: vertical;
    line-height: 1.5;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-tint);
}

.form-submit-btn {
    background-color: var(--accent);
    color: #fff;
}

.form-submit-btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.form-submit-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

/* ─── Footer ──────────────────────────────────────────── */
.footer {
    padding: 48px 0 40px;
    text-align: center;
    background-color: var(--primary-dark);
}

.footer-brand {
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.025em;
    margin-bottom: 6px;
}

.footer-tagline {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.05em;
    margin-bottom: 24px;
}

.footer-meta {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.35);
    margin-bottom: 4px;
}

/* ─── Language Toggle ─────────────────────────────────── */
.lang-toggle-container {
    display: flex;
    align-items: center;
    gap: 4px;
}

.lang-btn {
    background: none;
    border: none;
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    letter-spacing: 0.04em;
    transition: color 0.15s, background-color 0.15s;
}

.lang-btn:hover {
    color: rgba(255, 255, 255, 0.85);
}

.lang-btn.active {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.1);
}

.lang-divider {
    color: rgba(255, 255, 255, 0.2);
    font-size: 0.8rem;
    user-select: none;
}

/* ─── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
    h1 {
        font-size: 2.4rem;
    }

    h2 {
        font-size: 1.85rem;
    }

    .hero {
        padding: 80px 0 64px;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    .section {
        padding: 72px 0;
    }

    .lead-capture {
        padding: 72px 0;
    }

    .cta-band {
        padding: 72px 0;
    }

    .cta-band h2 {
        font-size: 2rem;
    }

    .form-wrapper {
        padding: 40px 24px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 0;
        border-radius: 8px;
    }

    .feature-card {
        padding: 32px 24px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 0;
        border-radius: 8px;
    }

    .service-item {
        padding: 36px 28px;
    }

    .service-numeral {
        font-size: 2.5rem;
    }

    .diff-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .process-grid {
        grid-template-columns: 1fr;
        gap: 0;
        border-radius: 8px;
    }

    .process-step {
        padding: 32px 24px;
    }
}