/* ============================================
   HEADER CSS
   ============================================ */

/* Header Base */
.site-header {
    background: var(--white);
    box-shadow: var(--shadow-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-medium);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: 2rem;
}

/* Logo Section */
.logo-section {
    flex-shrink: 0;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    transition: var(--transition);
}

.logo-link:hover {
    transform: translateY(-2px);
}

.logo-wrapper {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border-radius: var(--border-radius);
    padding: 0;
    transition: var(--transition);
}

.logo-link:hover .logo-wrapper {
    transform: translateY(-2px);
}

.logo-img {
    width: 100%;
    height: auto;
    max-height: 60px;
    object-fit: contain;
    display: block;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--gray-600);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

/* Navigation Desktop */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.25rem;
    color: var(--dark-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.nav-link:hover::before {
    opacity: 0.1;
}

.nav-link:hover {
    color: var(--secondary-color);
    transform: translateY(-2px);
}

.nav-link.active {
    color: var(--secondary-color);
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    border-radius: 2px 2px 0 0;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.btn-dashboard,
.btn-login {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-dashboard {
    background: var(--light-color);
    color: var(--primary-color);
    border-color: var(--light-color);
}

.btn-dashboard:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(44, 62, 80, 0.2);
}

.btn-login {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.3);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    background: var(--light-color);
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 24px;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
.mobile-menu {
    border-left: 1px solid rgba(0,0,0,0.1);
}

.offcanvas-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-logo-img {
    width: 45px;
    height: 45px;
    object-fit: contain;
}

.mobile-logo-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.mobile-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav-item {
    margin-bottom: 0.5rem;
}

.mobile-nav-divider {
    height: 1px;
    background: rgba(0,0,0,0.1);
    margin: 1.5rem 0;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    color: var(--dark-color);
    text-decoration: none;
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.mobile-nav-link i {
    width: 20px;
    text-align: center;
    color: var(--secondary-color);
}

.mobile-nav-link:hover {
    background: var(--light-color);
    color: var(--secondary-color);
    transform: translateX(5px);
}

.mobile-nav-link.active {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1) 0%, rgba(44, 62, 80, 0.1) 100%);
    color: var(--secondary-color);
    font-weight: 600;
}

.mobile-nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    border-radius: 0 4px 4px 0;
}

.mobile-nav-link-primary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
    margin-top: 0.5rem;
}

.mobile-nav-link-primary:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
}

.mobile-nav-link-primary i {
    color: var(--white);
}

/* Responsive */
@media (max-width: 991px) {
    .header-container {
        padding: 0 1rem;
    }

    .logo-title {
        font-size: 1.1rem;
    }

    .logo-subtitle {
        font-size: 0.7rem;
    }

    .logo-wrapper {
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 767px) {
    .header-content {
        padding: 0.75rem 0;
    }

    .logo-text {
        display: none;
    }

    .btn-dashboard span,
    .btn-login span {
        display: none;
    }

    .btn-dashboard,
    .btn-login {
        padding: 0.6rem;
        min-width: 40px;
        justify-content: center;
    }
}