/* CSS Variables */
:root {
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --primary: #00D4FF;
    --primary-dark: #0055FF;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-dark {
    background-color: var(--bg-darker);
}

.center {
    text-align: center;
}

.text-gradient {
    background: linear-gradient(to right, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 14px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
}

.w-100 {
    width: 100%;
}

.section-header {
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 20px 0;
    transition: padding 0.3s;
}

.navbar.scrolled {
    padding: 15px 0;
    background: rgba(15, 23, 42, 0.95);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    /* Ensure no underline */
}

.logo-img {
    height: 32px;
    width: auto;
    vertical-align: middle;
    margin-right: 8px;
    margin-bottom: 4px;
    /* subtle adjustment to align with baseline */
}

.logo .dot {
    color: var(--primary);
}

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

.nav-link {
    color: var(--text-muted);
    font-size: 0.95rem;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: white;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s;
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-cta {
    display: inline-block;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
}

/* Hero */
.hero {
    padding: 160px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-svg {
    width: 100%;
    max-width: 500px;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(0, 212, 255, 0.1));
}

.glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: var(--primary);
    filter: blur(100px);
    opacity: 0.2;
    z-index: -1;
}

/* Animations - SVG */
.spin-slow {
    transform-origin: center;
    animation: spin 20s linear infinite;
}

.pulse {
    transform-origin: center;
    animation: pulse 3s ease-in-out infinite;
}

.float {
    animation: float 6s ease-in-out infinite;
}

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* Stats Strip */
.stats {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 40px 0;
    background: rgba(30, 41, 59, 0.3);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
    gap: 20px;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-item p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Services */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 32px;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 24px;
}

.service-card h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.check-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* Products */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    position: relative;
    padding: 24px;
}

.badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary);
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.product-card h4 {
    margin-top: 12px;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.product-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.text-link {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 500;
}

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

/* Why Us */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.why-us-grid {
    max-width: 900px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.icon-box {
    background: var(--bg-card);
    padding: 12px;
    border-radius: 8px;
    color: var(--primary);
    border: 1px solid var(--border);
}

.feature-item h4 {
    margin-bottom: 4px;
    font-size: 1.1rem;
}

.feature-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* About */
.about-container {
    text-align: center;
    max-width: 800px;
}

.about-content h2 {
    font-size: 2rem;
    margin-bottom: 24px;
}

.about-content p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

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

.tag {
    background: rgba(255, 255, 255, 0.05);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--border);
}

/* Testimonials */
.testimonial-card .quote {
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 1rem;
}

.client-info strong {
    display: block;
    color: var(--text-main);
}

.client-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* FAQ */
.faq-container {
    max-width: 800px;
}

.accordion-item {
    border-bottom: 1px solid var(--border);
}

.accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
}

.accordion-header .chevron {
    transition: transform 0.3s;
}

.accordion-header[aria-expanded="true"] .chevron {
    transform: rotate(180deg);
}

.accordion-header[aria-expanded="true"] {
    color: var(--primary);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.accordion-content p {
    padding-bottom: 24px;
    color: var(--text-muted);
}

/* Footer (Contact) */
.footer {
    padding-top: 80px;
    background: var(--bg-darker);
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.footer-cta p {
    font-size: 1.1rem;
    color: var(--text-muted);
}

.contact-form {
    background: var(--bg-card);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
}

.form-text {
    display: block;
    margin-top: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: white;
    font-family: inherit;
    transition: border 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.footer-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 8px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    color: var(--text-muted);
    transition: 0.3s;
}

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

.copyright {
    text-align: center;
    padding: 24px 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    background: #000;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #10b981;
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transform: translateY(100px);
    opacity: 0;
    transition: 0.3s;
    z-index: 2000;
}

.form-group input.error,
.form-group textarea.error {
    border-color: #ef4444;
    /* Red color */
    animation: shake 0.5s;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.error {
    background: #ef4444;
    /* Red color for error */
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-4px);
    }

    20%,
    40%,
    60%,
    80% {
        transform: translateX(4px);
    }
}

/* Animation Classes (JS Triggered) */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}

/* Responsive */
@media (max-width: 900px) {

    .nav-links,
    .nav-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 40px;
    }

    .hero-content p {
        margin: 0 auto 32px;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3,
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 600px) {
    .section-header h2 {
        font-size: 2rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .grid-3,
    .product-grid,
    .grid-2 {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 24px;
    }

    /* Mobile Menu Overlay when active - simplified for this demo */
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-card);
        padding: 20px;
        border-bottom: 1px solid var(--border);
        animation: slideDown 0.3s ease-out;
    }

    .nav-link.mobile-only {
        display: block;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}