/* Header-specific CSS Variables */
.header {
    --header-bg: rgba(255, 255, 255, 0.95);
    --header-border: rgba(0, 0, 0, 0.1);
    --header-text-primary: #2d3748;
    --header-text-secondary: #4a5568;
    --header-accent: #3182ce;
    --header-accent-hover: #2c5282;
    --header-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --header-transition: all 0.3s ease;
}

/* Clean Light Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--header-shadow);
    transition: var(--header-transition);
}

.header .nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

/* Logo Styling */
.header .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--header-text-primary);
    font-weight: 700;
    font-size: 1.4rem;
    transition: var(--header-transition);
}

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

.header .logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--header-accent), var(--header-accent-hover));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    transition: var(--header-transition);
}

.header .logo:hover .logo-icon {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(49, 130, 206, 0.3);
}

.header .logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.header .logo-main {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--header-text-primary);
}

.header .logo-sub {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--header-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Header Navigation */
.header .nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.header .nav-item {
    position: relative;
}

.header .nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    color: var(--header-text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: 8px;
    transition: var(--header-transition);
    position: relative;
    background: transparent;
    border: 1px solid transparent;
}

.header .nav-link:hover {
    color: var(--header-accent);
    background: rgba(49, 130, 206, 0.08);
    border-color: rgba(49, 130, 206, 0.2);
    transform: translateY(-1px);
}

.header .nav-icon {
    font-size: 1rem;
}

/* Header Home button special styling */
.header .nav-link.home-btn {
    background: var(--header-accent);
    color: white;
    font-weight: 600;
    border: 1px solid var(--header-accent);
}

.header .nav-link.home-btn:hover {
    background: var(--header-accent-hover);
    border-color: var(--header-accent-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(49, 130, 206, 0.3);
}

/* Header Mobile Menu Toggle */
.header .mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: var(--header-transition);
}

.header .mobile-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
}

.header .toggle-line {
    width: 24px;
    height: 2px;
    background: var(--header-text-primary);
    border-radius: 2px;
    transition: var(--header-transition);
}

.header .mobile-toggle.active .toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header .mobile-toggle.active .toggle-line:nth-child(2) {
    opacity: 0;
}

.header .mobile-toggle.active .toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Header Mobile Responsive */
@media (max-width: 768px) {
    .header .nav-container {
        padding: 0 1rem;
        height: 60px;
    }

    .header .logo-text {
        display: none;
    }

    .header .logo-icon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }

    .header .logo-main {
        font-size: 1.2rem;
    }

    .header .mobile-toggle {
        display: flex;
    }

    .header .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--header-bg);
        border-top: 1px solid var(--header-border);
        border-bottom: 1px solid var(--header-border);
        flex-direction: column;
        gap: 0;
        padding: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--header-transition);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }

    .header .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .header .nav-link {
        width: 100%;
        justify-content: center;
        padding: 0.8rem 1rem;
        margin-bottom: 0.5rem;
        border-radius: 8px;
        color: var(--header-text-primary);
    }

    .header .nav-link:last-child {
        margin-bottom: 0;
    }

    .header .nav-link:hover {
        background: rgba(49, 130, 206, 0.1);
        transform: none;
    }

    .header .nav-link.home-btn:hover {
        background: var(--header-accent-hover);
        color: white;
        transform: none;
    }
}

/* Add this to prevent content from being hidden behind fixed header */
body {
    padding-top: 70px; /* Same as header height */
}

/* On mobile */
@media (max-width: 768px) {
    body {
        padding-top: 60px; /* Same as mobile header height */
    }
}