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

:root {
    --navy: #0f172a;
    --slate: #1e293b;
    --blue: #2563eb;
    --blue-dark: #1d4ed8;
    --blue-light: #3b82f6;
    --sky: #0ea5e9;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --white: #ffffff;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--gray-800);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

a {
    color: var(--blue);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--blue-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.75rem 0;
}

.nav-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--gray-200);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-portal {
    background: var(--blue) !important;
    color: var(--white) !important;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600 !important;
}

.nav-portal:hover {
    background: var(--blue-dark) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

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

/* === Hero === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--navy) 0%, var(--slate) 50%, #1a365d 100%);
    overflow: hidden;
    padding: 6rem 1.5rem 4rem;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(14, 165, 233, 0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 720px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--gray-400);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.2s;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--blue-dark);
    border-color: var(--blue-dark);
    color: var(--white);
}

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

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

/* === Section Common === */
.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-500);
}

/* === Services === */
.services {
    padding: 6rem 0;
    background: var(--gray-100);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* === About === */
.about {
    padding: 6rem 0;
    background: var(--white);
}

.about-text h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.25rem;
}

.about-text p {
    font-size: 1.0625rem;
    color: var(--gray-600);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.about-list {
    list-style: none;
    margin-top: 1.5rem;
}

.about-list li {
    font-size: 1rem;
    color: var(--gray-700);
    padding: 0.5rem 0;
    font-weight: 500;
}

/* === Contact === */
.contact {
    padding: 6rem 0;
    background: var(--gray-100);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 1rem;
}

.contact-item {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--gray-200);
}

.contact-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.contact-item p {
    font-size: 1rem;
    color: var(--gray-600);
}

/* === Footer === */
.footer {
    background: var(--navy);
    color: var(--gray-400);
    padding: 2.5rem 0;
    text-align: center;
}

.footer p {
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.875rem;
    border-bottom: 1px solid transparent;
}

.footer-links a:hover {
    color: var(--white);
    border-bottom-color: var(--white);
}


.hero-logo {
    display: block;
    margin: 0 auto 1.5rem;
    max-width: 200px;
    height: auto;
}

@media (max-width: 700px) {
    .hero-logo {
        max-width: 150px;
        margin-bottom: 1rem;
    }
}

.nav-logo-text {
    color: var(--gray-200);
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.nav-logo:hover .nav-logo-text {
    color: var(--white);
}
/* === Responsive === */
@media (max-width: 900px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 700px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--navy);
        padding: 1rem 1.5rem;
        gap: 0.75rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

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

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

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

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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

    .section-header h2,
    .about-text h2 {
        font-size: 1.75rem;
    }
}