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

/* ===== Variables ===== */
:root {
    --bg: #0a0a0a;
    --bg-card: #111111;
    --bg-card-hover: #161616;
    --text: #e8e8e8;
    --text-dim: #888888;
    --accent: #4f8cff;
    --accent-hover: #6ba0ff;
    --border: #1e1e1e;
    --radius: 12px;
}

/* ===== Base ===== */
html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Nav ===== */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-dim);
    font-size: 14px;
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--text);
    color: var(--bg);
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: opacity 0.2s;
}

.nav-cta:hover {
    opacity: 0.85;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    margin: 5px 0;
    transition: 0.3s;
}

/* ===== Hero ===== */
.hero {
    padding: 120px 0 100px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero h1 .highlight {
    color: var(--accent);
}

.hero p {
    font-size: clamp(16px, 2.5vw, 20px);
    color: var(--text-dim);
    max-width: 620px;
    margin: 0 auto 40px;
}

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

.hero-note {
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-dim);
}

/* ===== Buttons ===== */
.btn-primary {
    background: var(--accent);
    color: #fff;
    padding: 14px 32px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    transition: background 0.2s, transform 0.1s;
    display: inline-block;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    padding: 14px 32px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    border: 1px solid var(--border);
    transition: border-color 0.2s, background 0.2s;
    display: inline-block;
}

.btn-secondary:hover {
    border-color: var(--text-dim);
    background: var(--bg-card);
}

/* ===== Sections ===== */
section {
    padding: 80px 0;
}

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    letter-spacing: -1px;
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-dim);
    font-size: 18px;
    max-width: 580px;
    margin: 0 auto 60px;
}

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

.step {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: background 0.2s, border-color 0.2s;
}

.step:hover {
    background: var(--bg-card-hover);
    border-color: #2a2a2a;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.step h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step p {
    color: var(--text-dim);
    font-size: 15px;
}

/* ===== Features ===== */
.features {
    border-top: 1px solid var(--border);
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 48px 0;
    border-bottom: 1px solid var(--border);
}

.feature:last-child {
    border-bottom: none;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.feature-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-content p {
    color: var(--text-dim);
    font-size: 16px;
    max-width: 640px;
}

/* ===== Testimonials ===== */
.testimonials {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

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

.testimonial {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}

.testimonial p {
    font-size: 15px;
    color: var(--text);
    margin-bottom: 16px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    font-size: 16px;
}

.testimonial-name {
    font-size: 14px;
    font-weight: 600;
}

.testimonial-role {
    font-size: 13px;
    color: var(--text-dim);
}

/* ===== Final CTA ===== */
.final-cta {
    text-align: center;
    padding: 100px 0;
}

.final-cta h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.final-cta p {
    color: var(--text-dim);
    font-size: 18px;
    margin-bottom: 40px;
}

/* ===== Page Header (sub-pages) ===== */
.page-header {
    padding: 100px 0 60px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.page-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
}

.page-header p {
    color: var(--text-dim);
    font-size: 18px;
    max-width: 580px;
    margin: 0 auto;
}

/* ===== Contact Form ===== */
.contact-form {
    max-width: 560px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

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

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.contact-info-item {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.contact-info-item .icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.contact-info-item h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.contact-info-item p {
    color: var(--text-dim);
    font-size: 14px;
}

/* ===== About ===== */
.about-content {
    max-width: 720px;
    margin: 0 auto;
}

.about-content p {
    color: var(--text-dim);
    font-size: 17px;
    margin-bottom: 24px;
}

.about-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 40px 0 16px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.value-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}

.value-card .icon {
    font-size: 28px;
    margin-bottom: 16px;
}

.value-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.value-card p {
    color: var(--text-dim);
    font-size: 14px;
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer p {
    color: var(--text-dim);
    font-size: 14px;
}

.footer ul {
    display: flex;
    gap: 24px;
    list-style: none;
}

.footer ul a {
    color: var(--text-dim);
    font-size: 14px;
    transition: color 0.2s;
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 20px 24px;
        gap: 16px;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

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

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

    .feature {
        flex-direction: column;
        gap: 16px;
    }

    .hero {
        padding: 80px 0 60px;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

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