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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --accent: #0ea5e9;
    --dark: #0f172a;
    --dark-2: #1e293b;
    --gray-900: #111827;
    --gray-700: #374151;
    --gray-500: #6b7280;
    --gray-300: #d1d5db;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    --shadow-lg: 0 4px 6px rgba(0,0,0,0.05), 0 10px 40px rgba(0,0,0,0.08);
    --transition: 0.2s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: box-shadow var(--transition);
    border-bottom: 1px solid transparent;
}

header.scrolled {
    box-shadow: 0 1px 12px rgba(0,0,0,0.08);
    border-bottom-color: var(--gray-100);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--white);
    font-weight: 800;
    font-size: 0.9rem;
    border-radius: 10px;
    letter-spacing: -0.02em;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 8px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--gray-500);
    font-weight: 500;
    font-size: 0.925rem;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}

.nav-menu a:hover {
    color: var(--dark);
    background: var(--gray-50);
}

.nav-cta {
    background: var(--primary) !important;
    color: var(--white) !important;
    padding: 8px 20px !important;
}

.nav-cta:hover {
    background: var(--primary-dark) !important;
    color: var(--white) !important;
}

/* Mobile toggle */
.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(--dark);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.3);
}

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

.btn-full {
    width: 100%;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    background: var(--dark);
    color: var(--white);
    padding: 160px 0 100px;
    margin-top: 72px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 0%, rgba(37, 99, 235, 0.25) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 50%, rgba(14, 165, 233, 0.15) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    background: rgba(37, 99, 235, 0.15);
    color: var(--accent);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 24px;
    border: 1px solid rgba(37, 99, 235, 0.25);
}

.hero-content h1 {
    font-size: 3.75rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.65);
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 64px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    padding-top: 48px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.45);
    font-weight: 500;
}

/* ===== Section Shared ===== */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-label {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-header h2,
.about-text h2,
.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Services ===== */
.services {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--gray-100);
    padding: 36px;
    border-radius: var(--radius);
    transition: all var(--transition);
}

.service-card:hover {
    border-color: var(--gray-300);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.service-card.featured {
    border-color: rgba(37, 99, 235, 0.2);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(14, 165, 233, 0.03) 100%);
}

.service-icon {
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
}

.service-icon svg {
    width: 24px;
    height: 24px;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.service-card p {
    color: var(--gray-500);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-features li {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary);
    background: rgba(37, 99, 235, 0.06);
    padding: 4px 12px;
    border-radius: 100px;
}

/* ===== Why Us ===== */
.why-us {
    padding: 100px 0;
    background: var(--gray-50);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.why-card {
    background: var(--white);
    padding: 36px;
    border-radius: var(--radius);
    border: 1px solid var(--gray-100);
    transition: all var(--transition);
}

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

.why-number {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 16px;
    opacity: 0.6;
}

.why-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.why-card p {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ===== About ===== */
.about {
    padding: 100px 0;
}

.about-layout {
    max-width: 720px;
}

.about-text .section-label {
    margin-bottom: 12px;
}

.about-text h2 {
    margin-bottom: 24px;
}

.about-text p {
    font-size: 1.05rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-details {
    display: flex;
    gap: 40px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-100);
}

.about-detail {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.about-detail strong {
    font-size: 0.8rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.about-detail span {
    font-size: 1rem;
    color: var(--dark);
    font-weight: 600;
}

/* ===== Contact ===== */
.contact {
    padding: 100px 0;
    background: var(--gray-50);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: start;
}

.contact-info .section-label {
    margin-bottom: 12px;
}

.contact-info h2 {
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 1.05rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 36px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-detail svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-detail strong {
    display: block;
    font-size: 0.85rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
    margin-bottom: 2px;
}

.contact-detail a,
.contact-detail span {
    color: var(--dark);
    font-weight: 500;
    text-decoration: none;
    font-size: 0.95rem;
}

.contact-detail a:hover {
    color: var(--primary);
}

/* Form */
.contact-form-wrapper {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--dark);
    transition: border-color var(--transition), box-shadow var(--transition);
    background: var(--white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
    opacity: 0.6;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-status {
    font-size: 0.9rem;
    font-weight: 500;
    padding: 12px;
    border-radius: var(--radius-sm);
    display: none;
}

.form-status.success {
    display: block;
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.form-status.error {
    display: block;
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* ===== Footer ===== */
footer {
    background: var(--dark);
    color: rgba(255,255,255,0.6);
    padding: 64px 0 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 300px;
}

.footer-brand .logo-mark {
    width: 36px;
    height: 36px;
    font-size: 0.8rem;
}

.footer-brand .logo-text {
    color: var(--white);
    font-size: 1.15rem;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-top: 4px;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.footer-col a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition);
}

.footer-col a:hover {
    color: var(--white);
}

.footer-bottom {
    padding: 24px 0;
    font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .services-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-content h1 {
        font-size: 3rem;
    }
}

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

    .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 16px 24px;
        border-top: 1px solid var(--gray-100);
        box-shadow: 0 8px 24px rgba(0,0,0,0.1);
        gap: 4px;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu a {
        display: block;
        padding: 12px 16px;
    }

    .nav-cta {
        text-align: center;
        margin-top: 8px;
    }

    .hero {
        padding: 120px 0 80px;
    }

    .hero-content h1 {
        font-size: 2.25rem;
    }

    .hero-description {
        font-size: 1.05rem;
    }

    .hero-actions {
        flex-direction: column;
        margin-bottom: 48px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .section-header h2,
    .about-text h2,
    .contact-info h2 {
        font-size: 1.85rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .about-details {
        flex-direction: column;
        gap: 20px;
    }

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        gap: 48px;
    }

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

    .services,
    .why-us,
    .about,
    .contact {
        padding: 72px 0;
    }
}