/* Savvy Tech Sphere - Shared CSS */

:root {
    /* Primary Colors */
    --primary-blue: #548AAF;
    --primary-dark: #3d6489;
    --primary-light: #7aa3c7;

    /* Secondary Colors */
    --secondary-green: #00cc88;
    --secondary-purple: #6633ff;

    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #f8f9fa;
    --light-gray: #e9ecef;
    --gray: #6c757d;
    --dark-gray: #343a40;
    --black: #000000;

    /* Gradient Colors */
    --gradient-start: #548AAF;
    --gradient-end: #00cc88;

    /* Shadow Colors */
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-dark: rgba(0, 0, 0, 0.25);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px var(--shadow-light);
    z-index: 1000;
    transition: all 0.3s ease;
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.98);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Section Title */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-gray);
}

/* CTA Button */
.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow-light);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-medium);
    background: var(--primary-dark);
}

/* Footer */
footer {
    background: var(--dark-gray);
    color: var(--white);
    text-align: center;
    padding: 2rem;
}

footer p {
    opacity: 0.8;
}

footer a {
    color: var(--white);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Highlight */
.highlight {
    color: var(--primary-blue);
    font-weight: 600;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading Animation */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

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

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .section-title {
        font-size: 2rem;
    }
}