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

:root {
    --color-bg: #ffffff;
    --color-surface: #f8fafc;
    --color-border: #e2e8f0;
    --color-text: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #94a3b8;
    --color-accent: #0ea5e9;
    --color-accent-dark: #0284c7;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --transition: 0.2s ease-out;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    font-size: 16px;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: var(--color-text);
    color: white;
}
.btn-primary:hover {
    background: var(--color-text-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}
.btn-secondary:hover {
    background: var(--color-surface);
    border-color: var(--color-text-muted);
}

.btn-full { width: 100%; }

/* ===== Navigation ===== */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    color: var(--color-text);
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
}

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

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-text); }

.nav-cta {
    background: var(--color-text) !important;
    color: white !important;
    padding: 8px 18px !important;
    border-radius: var(--radius-sm) !important;
}
.nav-cta:hover { background: var(--color-text-secondary) !important; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ===== Hero ===== */
.hero {
    max-width: 1100px;
    margin: 0 auto;
    padding: 64px 24px 48px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 14px;
    background: color-mix(in srgb, var(--color-accent) 10%, transparent);
    color: var(--color-accent-dark);
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 20px;
    letter-spacing: 0.3px;
}

.hero h1 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.hero p {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 28px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-illustration {
    width: 100%;
    max-width: 380px;
    height: auto;
}

/* ===== Stats ===== */
.stats {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 40px 24px;
}

.stats-grid {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--color-text);
    line-height: 1.1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* ===== Services ===== */
.services {
    max-width: 1100px;
    margin: 0 auto;
    padding: 80px 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.section-header p {
    font-size: 17px;
    color: var(--color-text-secondary);
    max-width: 520px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.service-card {
    padding: 28px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    transition: all var(--transition);
}

.service-card:hover {
    border-color: var(--color-text-muted);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.service-icon {
    width: 40px;
    height: 40px;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
}

.service-card p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===== About ===== */
.about {
    max-width: 1100px;
    margin: 0 auto;
    padding: 80px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    border-top: 1px solid var(--color-border);
}

.about-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.3px;
    line-height: 1.2;
}

.about-content p {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.about-list {
    margin-top: 24px;
}

.about-list li {
    padding: 8px 0;
    padding-left: 28px;
    position: relative;
    font-size: 15px;
    color: var(--color-text-secondary);
}

.about-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 14px;
    width: 16px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
}

.about-visual {
    display: flex;
    justify-content: center;
}
.about-visual svg {
    width: 100%;
    max-width: 320px;
    height: auto;
}

/* ===== Contact ===== */
.contact {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 80px 24px;
}

.contact-wrapper {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}

.contact-info > p {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--color-text-secondary);
}

.contact-item svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}

/* Form */
.contact-form {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    background: var(--color-bg);
    color: var(--color-text);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 15%, transparent);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    font-size: 12px;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 12px;
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 32px 24px;
    text-align: center;
}

.footer-content {
    max-width: 1100px;
    margin: 0 auto;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 15px;
    color: var(--color-text);
    margin-bottom: 8px;
}

.footer-logo {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.footer-copy {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ===== Form Success/Error States ===== */
.form-success {
    text-align: center;
    padding: 40px 20px;
}
.form-success svg {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    margin-bottom: 16px;
}
.form-success h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}
.form-success p {
    color: var(--color-text-secondary);
    font-size: 15px;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 48px;
    }
    .hero p { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-visual { order: -1; }
    .hero-illustration { max-width: 280px; }

    .about { grid-template-columns: 1fr; gap: 40px; }
    .about-visual { order: -1; }

    .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
    .contact-info { text-align: center; }
    .contact-details { align-items: center; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: white;
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition);
    }
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    .nav-toggle { display: flex; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
    .services-grid { grid-template-columns: 1fr; }

    .hero h1 { font-size: 32px; }
    .section-header h2, .about-content h2, .contact-info h2 { font-size: 26px; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 28px; }
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .contact-form { padding: 24px; }
}