/* ===== CSS Variables ===== */
:root {
    --primary: #0077cc;
    --primary-dark: #005fa3;
    --primary-light: #3399e6;
    --accent: #00a0e3;
    --gradient-start: #0066b3;
    --gradient-end: #00a0e3;
    --dark: #0f172a;
    --dark-soft: #1e293b;
    --text: #334155;
    --text-light: #64748b;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-dark: #0f172a;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Montserrat', var(--font-sans);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
    overflow-x: hidden;
}

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

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.section-desc {
    max-width: 600px;
    margin: 1rem auto 0;
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    box-shadow: 0 4px 14px rgba(0, 119, 204, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 119, 204, 0.45);
    color: white;
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.6);
}

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

.btn-large {
    padding: 1.1rem 2.25rem;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    height: 42px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--dark-soft);
    font-size: 0.95rem;
}

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

.cta-nav {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white !important;
    padding: 0.6rem 1.25rem;
    border-radius: 50px;
    font-weight: 600;
}

.cta-nav:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 119, 204, 0.3);
}

.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: 2.5px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0a1628 0%, #0f2a4a 40%, #0a3d6b 70%, #0066b3 100%);
    color: white;
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 160, 227, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 119, 204, 0.2) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
    padding: 4rem 24px;
}

.hero-text h1 {
    color: white;
    margin-bottom: 1.25rem;
}

.hero-text .highlight {
    background: linear-gradient(90deg, #66c2ff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

.hero-desc {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 520px;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

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

.large-logo {
    max-width: 420px;
    width: 100%;
    background: white;
    padding: 1.75rem 2rem;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator a {
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    animation: bounce 2s infinite;
}

.scroll-indicator a:hover {
    color: white;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-8px); }
    60% { transform: translateY(-4px); }
}

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

.about-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 3.5rem;
    align-items: start;
}

.about-content .lead {
    font-size: 1.2rem;
    color: var(--dark);
    margin-bottom: 1.25rem;
    font-weight: 500;
}

.about-content p {
    margin-bottom: 1.25rem;
    color: var(--text);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.stat-card {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.35rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
}

.service-card {
    background: white;
    border-radius: var(--radius);
    padding: 2rem;
    border: 1px solid var(--border);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.service-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, rgba(0, 119, 204, 0.1), rgba(0, 160, 227, 0.15));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: var(--primary);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card h3 {
    margin-bottom: 0.75rem;
}

.service-card > p {
    color: var(--text-light);
    margin-bottom: 1.25rem;
    font-size: 0.975rem;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-features li {
    position: relative;
    padding-left: 1.35rem;
    font-size: 0.9rem;
    color: var(--text);
}

.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 7px;
    height: 7px;
    background: var(--primary);
    border-radius: 50%;
}

/* ===== Why Us ===== */
.why-us {
    padding: 6rem 0;
    background: var(--bg);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.why-card {
    background: var(--bg-alt);
    border-radius: var(--radius);
    padding: 1.75rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.why-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
}

.why-number {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.7;
    margin-bottom: 0.75rem;
}

.why-card h3 {
    margin-bottom: 0.6rem;
    font-size: 1.15rem;
}

.why-card p {
    font-size: 0.95rem;
    color: var(--text-light);
}

/* ===== CTA Banner ===== */
.cta-banner {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    text-align: center;
}

.cta-content h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.15rem;
    max-width: 560px;
    margin: 0 auto 2rem;
    opacity: 0.95;
}

.cta-banner .btn-primary {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.cta-banner .btn-primary:hover {
    background: #f0f9ff;
    transform: translateY(-2px);
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3.5rem;
    align-items: start;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--primary);
    border: 1px solid var(--border);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-item h4 {
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.contact-item a, .contact-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

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

.contact-note {
    background: white;
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    border-left: 4px solid var(--primary);
    margin-top: 1.5rem;
}

.contact-note p {
    font-size: 0.9rem;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.contact-note p:last-child {
    margin-bottom: 0;
    color: var(--text-light);
}

/* Form */
.contact-form {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-alt);
    color: var(--dark);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(0, 119, 204, 0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
}

.form-note {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 1rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 4rem 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 1rem;
    background: white;
    padding: 0.6rem 0.9rem;
    border-radius: 8px;
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.footer-links ul,
.footer-services ul {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: white;
}

.footer-services li {
    font-size: 0.95rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    font-size: 0.875rem;
}

.footer-bottom .domain {
    color: var(--accent);
    font-weight: 500;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .large-logo {
        max-width: 320px;
        padding: 1.25rem 1.5rem;
    }

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

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

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

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

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

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

    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1.5rem;
        gap: 0;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: 0.9rem 1rem;
        border-radius: var(--radius-sm);
    }

    .nav-link:hover {
        background: var(--bg-alt);
    }

    .cta-nav {
        text-align: center;
        margin-top: 0.5rem;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: auto;
        padding-bottom: 4rem;
    }

    .hero-content {
        padding: 3rem 16px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 1.25rem;
    }
}