/* ===== CSS Variables ===== */
:root {
    --primary: #0066cc;
    --primary-dark: #004d99;
    --primary-light: #e6f0ff;
    --accent: #ff9500;
    --accent-light: #fff4e6;
    --text-primary: #1a1a2e;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --transition: all 0.2s ease;
    --header-height: 70px;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding-top: var(--header-height);
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-white);
    z-index: 1000;
    box-shadow: 0 1px 0 var(--border-color);
}

.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.header-container {
    max-width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

/* ===== Logo ===== */
.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    padding: 8px 14px;
    background: linear-gradient(135deg, #1e4a6d 0%, #2d5a7b 100%);
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(30, 74, 109, 0.25);
    transition: var(--transition);
}

.logo:hover {
    box-shadow: 0 4px 10px rgba(30, 74, 109, 0.35);
}

.logo img {
    height: 26px;
    width: auto;
}

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

.nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list li a {
    display: block;
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.nav-list li a:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-list li.active a {
    color: var(--primary);
    background: var(--primary-light);
    font-weight: 600;
}

/* ===== Header Actions ===== */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* ===== Icon Button ===== */
.btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border: none;
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--primary-light);
    color: var(--primary);
}

/* ===== Auth Section ===== */
.auth-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ===== Buttons ===== */
.btn-ghost,
.btn-primary {
    display: inline-block;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    text-align: center;
    line-height: normal;
    box-sizing: border-box;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-ghost {
    color: #0066cc;
    border: 2px solid #0066cc;
    background-color: #ffffff;
}

.btn-ghost:hover {
    background-color: #e6f0ff;
    color: #0066cc;
}

.btn-primary {
    color: #ffffff !important;
    background-color: #0066cc !important;
    border: 2px solid #0066cc !important;
}

.btn-primary:hover {
    background-color: #004d99 !important;
    border-color: #004d99 !important;
    color: #ffffff !important;
}

/* smaller candidate desktop register button */
.btn-primary-sm {
    padding: 6px 14px !important;
    font-size: 13px !important;
}

.btn-primary-sm i {
    margin-right: 6px;
    font-size: 12px;
}

/* ===== User Dropdown ===== */
.user-dropdown,
.employer-dropdown {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px 6px 6px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
}

.user-btn:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.user-btn img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-btn .fa-chevron-down {
    font-size: 10px;
    color: var(--text-muted);
    transition: var(--transition);
}

.user-btn:hover .fa-chevron-down {
    color: var(--primary);
}

/* ===== Employer Dropdown Button ===== */
.btn-employer {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    margin-left: 16px;
    padding-left: 16px;
    border-left: 1px solid var(--border-color);
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-employer .fa-building {
    display: none;
}

.btn-employer .fa-chevron-down {
    font-size: 10px;
    transition: transform 0.2s ease;
}

/* Hover expand for employer dropdown */
.employer-dropdown:hover .dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

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

.employer-dropdown:hover .btn-employer .fa-chevron-down {
    transform: rotate(180deg);
}

/* ===== Dropdown Panel ===== */
.dropdown-panel {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 240px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
    overflow: hidden;
}

.dropdown-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: 12px 16px;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
}

.dropdown-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dropdown-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

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

.dropdown-link i {
    width: 18px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

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

.dropdown-link.logout {
    color: #dc2626;
}

.dropdown-link.logout:hover {
    background: #fef2f2;
    color: #dc2626;
}

.dropdown-link.logout i {
    color: #dc2626;
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* ===== Search Modal ===== */
.search-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 100px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.search-modal.active {
    opacity: 1;
    visibility: visible;
}

.search-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.search-modal-content {
    position: relative;
    width: 90%;
    max-width: 700px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.search-modal.active .search-modal-content {
    transform: translateY(0);
}

.search-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.search-modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.btn-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-close:hover {
    background: #fef2f2;
    color: #dc2626;
}

.search-modal-body {
    padding: 24px;
}

/* ===== Mobile Toggle ===== */
.mobile-toggle {
    display: none;
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.mobile-menu-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 320px;
    max-width: 85%;
    height: 100%;
    background: var(--bg-white);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.mobile-menu.active .mobile-menu-panel {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-white);
    position: sticky;
    top: 0;
    z-index: 10;
}

.mobile-menu-header .logo img {
    height: 32px;
}

.mobile-menu-body {
    padding: 20px;
}

/* ===== Mobile User Card ===== */
.mobile-user-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    background: var(--primary-light);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
}

.mobile-user-card img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--bg-white);
}

.mobile-user-info {
    display: flex;
    flex-direction: column;
}

.mobile-user-info strong {
    font-size: 15px;
    color: var(--text-primary);
}

.mobile-user-info span {
    font-size: 13px;
    color: var(--primary);
}

/* ===== Mobile Navigation ===== */
.mobile-nav {
    margin-bottom: 20px;
}

.mobile-nav-label {
    display: block;
    padding: 0 12px 10px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
    margin-bottom: 2px;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background: var(--primary-light);
    color: var(--primary);
}

.mobile-nav-link i {
    width: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 15px;
}

.mobile-nav-link:hover i,
.mobile-nav-link.active i {
    color: var(--primary);
}

.mobile-nav-link.highlight {
    background: var(--primary);
    color: var(--bg-white);
}

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

.mobile-nav-link.highlight:hover {
    background: var(--primary-dark);
}

.mobile-nav-link.logout {
    color: #dc2626;
}

.mobile-nav-link.logout:hover {
    background: #fef2f2;
}

.mobile-nav-link.logout i {
    color: #dc2626;
}

/* ===== Mobile Employer Section ===== */
.mobile-nav-employer {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.mobile-nav-employer .mobile-nav-label {
    color: var(--accent);
}

.mobile-nav-employer .mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
}

.mobile-nav-employer .mobile-nav-link i {
    color: var(--accent);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.mobile-nav-employer .mobile-nav-link span {
    flex: 1;
}

.mobile-nav-employer .mobile-nav-link:hover {
    background: var(--accent-light);
    color: var(--accent);
}

.mobile-nav-employer .mobile-nav-link:hover i {
    color: var(--accent);
}

/* ===== Mobile Auth ===== */
.mobile-auth {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 10px;
}

.btn-ghost-mobile,
.btn-primary-mobile {
    display: block;
    padding: 14px 20px;
    text-align: center;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.btn-ghost-mobile {
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-ghost-mobile:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-primary-mobile {
    background: var(--primary);
    color: var(--bg-white);
}

.btn-primary-mobile:hover {
    background: var(--primary-dark);
}

/* ===== Responsive ===== */
@media (max-width: 991px) {
    :root {
        --header-height: 64px;
    }

    .header-container {
        padding: 0 16px;
    }

    .nav-desktop {
        display: none;
    }

    .auth-section {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }
}

@media (max-width: 576px) {
    .logo img {
        height: 30px;
    }

    .mobile-menu-panel {
        width: 100%;
        max-width: 100%;
    }

    .search-modal-content {
        width: 95%;
        margin: 0 10px;
    }

    .search-modal-header {
        padding: 16px 20px;
    }

    .search-modal-body {
        padding: 20px;
    }
}

/* ===== Focus States ===== */
button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ===== Print ===== */
@media print {
    .header {
        position: static;
        box-shadow: none;
    }

    body {
        padding-top: 0;
    }

    .mobile-toggle,
    .btn-icon,
    .search-modal,
    .mobile-menu {
        display: none !important;
    }
}