/* =========================================
   LAYOUT.CSS - Structure & Navigation
   ========================================= */

/* =========================================
   1. Header & Navigation
   ========================================= */
.main-header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    gap: 2rem;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
    transition: var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

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

.nav-center {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    gap: 2rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    margin: 0 auto;
}

.nav-links li {
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-secondary);
    padding: 8px 0;
    letter-spacing: 0.3px;
}

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

.auth-buttons {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.auth-buttons .btn,
.auth-buttons .btn-outline {
    padding: 8px 20px;
    font-size: 0.85rem;
}

/* =========================================
   2. Navbar Icons
   ========================================= */
.navbar-icons {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
}

.navbar-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: rgba(139, 94, 60, 0.08);
    transition: var(--transition-normal);
}

.navbar-icons a:hover {
    background: var(--color-primary);
}

.navbar-icons a:hover .navbar-icon {
    fill: var(--color-white);
}

.navbar-icon {
    width: 20px;
    height: 20px;
    fill: var(--color-secondary);
    transition: var(--transition-fast);
}

/* =========================================
   3. Mobile Navigation
   ========================================= */
.nav-toggle {
    display: none;
}

.nav-toggle-label {
    display: none;
    cursor: pointer;
    padding: 10px;
}

@media (max-width: 900px) {
    .nav-toggle-label {
        display: block;
    }

    .hamburger {
        width: 28px;
        height: 3px;
        background: var(--color-secondary);
        display: block;
        position: relative;
        border-radius: 2px;
        transition: var(--transition-fast);
    }
    
    .hamburger::before,
    .hamburger::after {
        content: '';
        position: absolute;
        width: 100%;
        height: 3px;
        background: var(--color-secondary);
        border-radius: 2px;
        transition: var(--transition-normal);
    }
    
    .hamburger::before { top: -8px; }
    .hamburger::after { top: 8px; }

    .nav-toggle:checked + .nav-toggle-label .hamburger {
        background: transparent;
    }
    
    .nav-toggle:checked + .nav-toggle-label .hamburger::before {
        top: 0;
        transform: rotate(45deg);
    }
    
    .nav-toggle:checked + .nav-toggle-label .hamburger::after {
        top: 0;
        transform: rotate(-45deg);
    }

    .nav-center {
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background: var(--color-white);
        flex-direction: column;
        padding: 30px 20px;
        transform: scaleY(0);
        transform-origin: top;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
        opacity: 0;
    }
    
    .nav-toggle:checked ~ .nav-center {
        transform: scaleY(1);
        opacity: 1;
    }
    
    .nav-links {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        width: 100%;
    }
    
    .nav-links a {
        font-size: 1.1rem;
    }
    
    .auth-buttons {
        flex-direction: column;
        width: 100%;
        align-items: center;
        padding-top: 1.5rem;
        gap: 0.75rem;
    }
    
    .auth-buttons .btn,
    .auth-buttons .btn-outline {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }

    .navbar-icons {
        display: none;
    }
}

/* =========================================
   4. Footer
   ========================================= */
.main-footer {
    background: linear-gradient(180deg, var(--color-bg-dark), #111);
    color: #b0b0b0;
    padding: 70px 0 25px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand h3 {
    color: var(--color-white);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.footer-brand p {
    line-height: 1.8;
    color: #999;
}

.footer-col h4 {
    color: var(--color-white);
    margin-bottom: 25px;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--color-primary);
}

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

.footer-links-list a {
    color: #999;
    transition: var(--transition-fast);
}

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

.footer-newsletter input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    color: var(--color-white);
    margin-bottom: 12px;
    transition: var(--transition-fast);
}

.footer-newsletter input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255,255,255,0.12);
}

.footer-newsletter input::placeholder {
    color: #777;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 25px;
    text-align: center;
    font-size: 0.9rem;
    color: #777;
}

/* =========================================
   5. Social Links
   ========================================= */
.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.social-link svg {
    width: 18px;
    height: 18px;
    fill: var(--color-white);
    transition: var(--transition-fast);
}

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

.social-link:hover svg {
    fill: var(--color-white);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-col h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .social-links {
        justify-content: center;
    }
}