/* Variables & Design Tokens */
:root {
    --text-main: #111827;           /* Black/Dark Grey */
    --text-muted: #6b7280;
    --bg-main: #ffffff;             /* White */
    --bg-light: #f8fafc;
    --bg-dark: #0f172a;             /* Deep Dark Blue/Black */
    --primary-blue: #0ea5e9;        /* Bright Accent Blue */
    --primary-blue-hover: #0284c7;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Roboto', sans-serif;
    
    --transition-speed: 0.3s;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

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

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

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.text-blue { color: var(--primary-blue); }
.text-white { color: #ffffff; }
.bg-light { background-color: var(--bg-light); }
.bg-dark { background-color: var(--bg-dark); }

.section-padding { padding: 5rem 0; }
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}
.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}
.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: #ffffff;
}
.btn-primary:hover {
    background-color: var(--primary-blue-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--bg-main);
    border-color: var(--bg-main);
}
.btn-outline:hover {
    background-color: var(--bg-main);
    color: var(--bg-dark);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-speed);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

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

nav ul {
    display: flex;
    gap: 2rem;
}

nav a {
    font-weight: 500;
    color: var(--text-main);
}
nav a:hover {
    color: var(--primary-blue);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-main);
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--bg-dark);
    padding: 6rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(14,165,233,0.15) 0%, rgba(15,23,42,0) 70%);
    z-index: 0;
}

.hero-content {
    flex: 1;
    z-index: 1;
    color: var(--bg-main);
    max-width: 600px;
}

.hero h1 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.125rem;
    color: #e2e8f0;
    margin-bottom: 2rem;
}

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

.hero-image-wrapper {
    flex: 1;
    z-index: 1;
    display: flex;
    justify-content: flex-end;
}

.hero-image {
    max-width: 100%;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(14, 165, 233, 0.25);
    animation: floating 6s ease-in-out infinite;
}

@keyframes floating {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

/* Services Grid */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--bg-main);
    padding: 2.5rem 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    border-top: 4px solid transparent;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--primary-blue);
}

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

.card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

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

/* Process Timeline (Flex Alternative) */
.timeline {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}

.timeline-item {
    flex: 1;
    min-width: 250px;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    text-align: center;
}

.timeline-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.25rem;
    margin: 0 auto 1.5rem;
}

.timeline-item h3 {
    margin-bottom: 0.75rem;
}

.timeline-item p {
    color: #cbd5e1;
    font-size: 0.95rem;
}

/* Contact Section */
.flex-contact {
    display: flex;
    gap: 4rem;
    align-items: flex-start;
}

.contact-info {
    flex: 1;
}

.contact-list {
    margin-top: 1.5rem;
}

.contact-list li {
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.contact-list a {
    color: var(--primary-blue);
    font-weight: 500;
}

.contact-form-wrapper {
    flex: 1;
    background-color: var(--bg-main);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    width: 100%;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-speed);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

/* Footer */
footer {
    background-color: var(--bg-dark);
    color: var(--bg-light);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    padding: 4rem 2rem;
}

.footer-brand p {
    margin-top: 1rem;
    color: #94a3b8;
}

.footer-links h3, .footer-social h3 {
    color: white;
    margin-bottom: 1.25rem;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #94a3b8;
}

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

.social-icons a {
    font-size: 1.5rem;
    margin-right: 1rem;
    color: #94a3b8;
}

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

.footer-bottom {
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #64748b;
    font-size: 0.9rem;
}


/* Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}


/* Media Queries */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 8rem;
    }
    
    .hero-content {
        margin-bottom: 3rem;
    }

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

    .flex-contact {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        padding: 2rem 0;
        transform: translateY(-150%);
        transition: transform var(--transition-speed);
        box-shadow: var(--shadow-md);
        z-index: -1;
    }
    
    nav.active {
        transform: translateY(0);
    }
    
    nav ul {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .mobile-menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    .mobile-menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .section-padding {
        padding: 3.5rem 0;
    }
}