/* Covera Tech - Common Styles */

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

:root {
    --primary: #0066ff;
    --primary-dark: #0052cc;
    --secondary: #7c3aed;
    --accent: #06b6d4;
    --text-primary: #0a0a0a;
    --text-secondary: #737373;
    --bg-light: #ffffff;
    --bg-dark: #0a0a0a;
    --border-light: #e5e5e5;
    --success: #10b981;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -1px;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

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

.nav-links {
    display: flex;
    gap: 50px;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    position: relative;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.nav-links a.active {
    opacity: 1;
    color: var(--primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}

.nav-links a:hover {
    opacity: 1;
}

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

.nav-cta {
    background: var(--text-primary);
    color: white !important;
    padding: 10px 24px;
    border-radius: 50px;
    opacity: 1 !important;
    transition: all 0.4s ease;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    width: 28px;
    height: 2.5px;
    background: var(--text-primary);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

/* Footer */
footer {
    background: var(--bg-dark);
    color: white;
    padding: 80px 40px 40px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    margin-bottom: 16px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 12px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

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

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 14px;
}

/* Animation utilities */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        padding: 40px 0;
        gap: 0;
        z-index: 999;
    }

    .nav-links li {
        width: 100%;
        padding: 20px 0;
    }

    .nav-links.active {
        left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }

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

    .nav-container {
        padding: 0 20px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 22px;
    }
}