/* Header Component Styles */
header {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1200px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    color: var(--text-primary);
    box-shadow: var(--shadow-header);
    backdrop-filter: blur(10px);
}

[data-theme="dark"] header {
    background: rgba(48, 49, 56, 0.95);
    color: white;
}

.logo {
    font-family: var(--font-heading);
    font-weight: bold;
    font-size: 24px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-links a {
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

[data-theme="dark"] .nav-links a {
    color: #E8E8E8;
}

.auth-utils {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.auth-utils a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.auth-utils a:hover {
    color: var(--action-primary);
}

header .auth-utils a.btn-primary {
    color: white !important;
}

header .auth-utils a.btn-primary:hover {
    color: white !important;
}

header .auth-utils a.btn-primary:focus {
    color: white !important;
}

header .auth-utils a.btn-primary:active {
    color: white !important;
}

[data-theme="dark"] .auth-utils a {
    color: #E8E8E8;
}

[data-theme="dark"] header .auth-utils a.btn-primary {
    color: white !important;
}

[data-theme="dark"] header .auth-utils a.btn-primary:hover {
    color: white !important;
}

.auth-utils span {
    color: var(--text-primary);
}

[data-theme="dark"] .auth-utils span {
    color: #E8E8E8;
}

.theme-toggle {
    cursor: pointer;
    user-select: none;
    transition: transform 0.2s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: background-color 0.2s ease;
}

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

.btn-primary:hover {
    background-color: var(--action-primary-hover);
    color: white;
}