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

:root {
    --primary: #1a56db;
    --primary-dark: #1342a8;
    --primary-light: #e8effc;
    --dark: #111827;
    --gray-700: #374151;
    --gray-500: #6b7280;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --white: #ffffff;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.05);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.1);
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--primary);
    text-decoration: none;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    border-bottom: 1px solid var(--gray-200);
    backdrop-filter: blur(8px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-img {
    height: 44px;
    width: auto;
    flex-shrink: 0;
    border-radius: 6px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav a {
    color: var(--gray-700);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--primary);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600;
    transition: background 0.2s;
}

.nav-cta:hover {
    background: var(--primary-dark);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: 0.3s;
}

/* Hero */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--white) 100%);
    text-align: center;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.15rem;
    color: var(--gray-500);
    max-width: 560px;
    margin: 0 auto 32px;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-full {
    width: 100%;
}

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

.section-alt {
    background: var(--gray-100);
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
    text-align: center;
    margin-bottom: 48px;
}

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

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

/* Cards */
.card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 32px 24px;
    transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

.card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.card p {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* About */
.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    margin-bottom: 16px;
    font-size: 1.05rem;
}

/* Features */
.feature {
    padding: 24px;
}

.feature-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-light);
    line-height: 1;
    margin-bottom: 12px;
}

.feature h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.feature p {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* Contact */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
    justify-content: center;
}

.contact-item strong {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.contact-item a,
.contact-item p {
    font-size: 1.1rem;
    color: var(--dark);
    font-weight: 600;
}

/* Contact Center */
.contact-center {
    max-width: 400px;
    margin: 0 auto;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--gray-500);
    padding: 32px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37,211,102,0.4);
    transition: transform 0.2s;
    z-index: 999;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        border-bottom: 1px solid var(--gray-200);
        box-shadow: var(--shadow);
    }

    .nav.open {
        display: flex;
    }

    .hero {
        padding: 110px 0 60px;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .section {
        padding: 56px 0;
    }

    .section-title {
        font-size: 1.6rem;
        margin-bottom: 32px;
    }

    .grid-3 {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .grid-2 {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .hero-actions {
        flex-direction: column;
        padding: 0 20px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.7rem;
    }

    .card {
        padding: 24px 20px;
    }
}