/* --- Variables & Presets --- */
:root {
    --bg-dark: #ffffff;
    --bg-darker: #f8fafc;
    --card-bg: #ffffff;
    --border-color: rgba(0, 0, 0, 0.08);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    
    --accent-blue: #3b82f6;
    --accent-cyan: #0ea5e9;
    --accent-purple: #f43f5e; /* using a vibrant rose/pink instead of purple for brightness */
    --gradient-primary: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    --gradient-purple: linear-gradient(135deg, var(--accent-purple), #ec4899);
    
    --font-sans: 'Inter', sans-serif;
    --font-display: 'Outfit', sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, .logo {
    font-family: var(--font-display);
    font-weight: 800;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 5%;
}

.text-center { text-align: center; }
.mt-2 { margin-top: 1.5rem; }
.mt-4 { margin-top: 3rem; }

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 0.8em 1.8em;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.5);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
}

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

/* --- Navbar --- */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 0;
    transition: var(--transition-smooth);
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.04);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-cyan);
    font-weight: 400;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links li a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.nav-links li a.nav-btn {
    color: #fff;
    padding: 0.6em 1.5em;
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 8rem 5% 4rem;
}

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

.badge {
    display: inline-block;
    padding: 0.4em 1em;
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-cyan);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Sections Common --- */
section {
    padding: 8rem 0;
}

.subtitle {
    font-size: 1rem;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.layout-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

/* --- Services Section --- */
.services {
    background-color: var(--bg-darker);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    transition: var(--transition-smooth);
    box-shadow: var(--card-shadow);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 20px 40px rgba(14, 165, 233, 0.1);
    background: #ffffff;
}

.icon-box {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(6, 182, 212, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.8rem;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
}

.service-card h4 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

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

/* --- Portfolio --- */
.portfolio p {
    color: var(--text-secondary);
    margin: 0 auto 2rem;
    font-size: 1.1rem;
    max-width: 600px;
}

.feature-list-center {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.feature-list-center span {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.feature-list-center i {
    color: var(--accent-purple);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
    background: rgba(6, 182, 212, 0.1);
}

/* --- Why Us Section --- */
.advantage-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.adv-card {
    text-align: left;
    padding: 2rem;
    border-top: 3px solid rgba(0,0,0,0.05);
    transition: var(--transition-fast);
    background: var(--bg-dark);
    box-shadow: var(--card-shadow);
    border-radius: 12px;
}

.adv-card:hover { border-top-color: var(--accent-purple); }

.adv-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    color: rgba(0,0,0,0.06);
    line-height: 1;
    margin-bottom: 1rem;
    transition: var(--transition-fast);
}

.adv-card:hover .adv-number { color: var(--accent-purple); }

.adv-card h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.adv-card p {
    color: var(--text-secondary);
}

/* --- CTA Section --- */
.cta-section {
    padding: 5rem 0 8rem;
}

.cta-box {
    background: var(--gradient-primary);
    border: none;
    border-radius: 30px;
    padding: 6rem 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    color: #fff;
    box-shadow: 0 20px 40px rgba(14, 165, 233, 0.2);
}

.cta-box h2, .cta-box p {
    color: #fff;
}

.input-group {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    background: #ffffff;
    border-radius: 50px;
    border: 2px solid #fff;
    padding: 0.5rem;
    position: relative;
    z-index: 2;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.input-group input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 0 1.5rem;
    font-size: 1rem;
    font-family: var(--font-sans);
    outline: none;
}

.input-group input::placeholder {
    color: #94a3b8;
}

.submit-btn {
    padding: 0.8em 2em;
}

/* --- Footer --- */
footer {
    border-top: 1px solid var(--border-color);
    padding: 5rem 0 2rem;
    background: var(--bg-darker);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    color: var(--text-secondary);
    margin: 1rem 0 2rem;
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0,0,0,0.05);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-secondary);
}

.social-links a:hover {
    background: var(--accent-cyan);
    color: #fff;
    transform: translateY(-3px);
}

.footer-links h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--accent-cyan);
}

.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 2rem;
    font-size: 0.9rem;
}

/* --- Animations & Responsive --- */
@keyframes pulse-glow {
    0% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(6, 182, 212, 0); }
    100% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0); }
}

.pulse {
    animation: pulse-glow 2s infinite;
}

/* Scroll Revealing */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Base fadeins for load */
.fade-in-up {
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.fade-in-right {
    opacity: 0;
    animation: fadeInRight 1s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.3s;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Media Queries */
@media (max-width: 992px) {
    .hero h1 { font-size: 3.5rem; }
    
    .cta-box { padding: 4rem 2rem; }
    .cta-box h2 { font-size: 2.5rem; }
    
    .footer-content { grid-template-columns: 1fr; gap: 2rem; text-align: center;}
    .footer-brand p { margin: 1rem auto; }
    .social-links { justify-content: center; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100vh;
        width: 70%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(15px);
        flex-direction: column;
        justify-content: center;
        transition: 0.4s ease-in-out;
        box-shadow: -10px 0 30px rgba(0,0,0,0.05);
    }
    
    .nav-links.active { right: 0; }
    .hamburger { display: block; z-index: 101; }
    .hamburger.active i::before { content: "\f00d"; } /* FontAwesome 'times' icon */
    
    .input-group { flex-direction: column; border: none; background: transparent; padding: 0; gap: 1rem; box-shadow: none; }
    .input-group input { border-radius: 50px; padding: 1rem; border: 1px solid var(--border-color); background: #ffffff; }
}