/**
 * Global Frontend Stylesheet (Header & Footer)
 * 100% Responsive & Modern UI
 */

:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --dark: #0f172a;
    --text-main: #334155;
    --text-muted: #64748b;
    --bg-light: #f8fafc;
    --transition: 0.3s ease;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ========================================================
   Header & Navigation
   ======================================================== */
.main-header {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.brand-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    text-decoration: none;
    letter-spacing: -0.5px;
}

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

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-login, .btn-register, .btn-dashboard {
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.btn-login {
    color: var(--text-main);
}

.btn-login:hover {
    color: var(--primary);
}

.btn-register, .btn-dashboard {
    background: var(--primary);
    color: #fff;
}

.btn-register:hover, .btn-dashboard:hover {
    background: var(--primary-hover);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--dark);
    cursor: pointer;
}

/* ========================================================
   Footer
   ======================================================== */
.main-footer {
    background: var(--dark);
    color: #e2e8f0;
    padding-top: 60px;
    margin-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-about h3 {
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 15px;
}

.footer-about span {
    color: var(--primary);
}

.footer-about p {
    color: #94a3b8;
    font-size: 0.95rem;
}

.footer-links h4 {
    color: #fff;
    font-size: 1.1rem;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding: 25px 0;
    text-align: center;
    color: #64748b;
    font-size: 0.9rem;
}

/* ========================================================
   Mobile Responsiveness
   ======================================================== */
@media screen and (max-width: 992px) {
    .nav-menu {
        position: absolute;
        top: 80px;
        left: -100%;
        width: 100%;
        background: #fff;
        box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
        transition: var(--transition);
        border-top: 1px solid #f1f5f9;
    }

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

    .nav-list {
        flex-direction: column;
        gap: 0;
        padding: 10px 0;
    }

    .nav-list li {
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: 15px 25px;
        border-bottom: 1px solid #f1f5f9;
    }

    .mobile-toggle {
        display: block;
    }

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

@media screen and (max-width: 600px) {
    .btn-login {
        display: none; /* Hide simple login text on very small phones to save space */
    }
}