/* ============================================
   HEADER.CSS - DONHOSTER
   Shared header & navigation for ALL pages
   ============================================ */

/* ============= DARK MODE TOGGLE (fixed button) ============= */
.dark-mode-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 9998;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    color: var(--text-primary);
}

.dark-mode-toggle:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: scale(1.1);
}

.dark-mode-toggle .hidden {
    display: none;
}

/* ============= HEADER ============= */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
}

[data-theme="dark"] .header.scrolled {
    background: rgba(15, 20, 25, 0.97);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

/* ============= HEADER CONTAINER ============= */
.header-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

/* ============= LOGO ============= */
.header .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.header .logo img {
    height: 36px;
    width: auto;
    display: block;
}

/* Fallback text logo when image is unavailable */
.header .logo-text {
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.header .logo-text span {
    color: var(--primary);
}

/* ============= NAVIGATION ============= */
.header nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 0.25rem;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: block;
    padding: 0.5rem 0.875rem;
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-menu a:hover {
    color: var(--primary);
    background: rgba(107, 61, 187, 0.06);
}

/* Active page indicator */
.nav-menu a[aria-current="page"],
.nav-menu a.active {
    color: var(--primary);
    font-weight: 600;
    background: rgba(107, 61, 187, 0.08);
}

/* Client Area CTA button in nav */
.nav-menu .btn-nav {
    background: var(--gradient-primary);
    color: white !important;
    padding: 0.5rem 1.25rem !important;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: 0 2px 8px rgba(107, 61, 187, 0.3);
    transition: all var(--transition-base);
}

.nav-menu .btn-nav:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(107, 61, 187, 0.4);
    background: rgba(107, 61, 187, 0.08) !important;
    /* Override hover background for CTA */
    background: linear-gradient(135deg, #5B2FA6 0%, #7B28CC 100%) !important;
    color: white !important;
}

/* ============= MOBILE MENU BUTTON ============= */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--bg-secondary);
}

/* Hamburger icon */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    pointer-events: none;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    transform-origin: center;
}

/* Hamburger → X animation */
.hamburger.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* ============= RESPONSIVE - TABLET ============= */
@media (max-width: 1024px) {
    .header-container {
        padding: 0.875rem 1.5rem;
    }

    .nav-menu a {
        padding: 0.5rem 0.625rem;
        font-size: 0.875rem;
    }
}

/* ============= RESPONSIVE - MOBILE ============= */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 1001;
    }

    /* Mobile nav menu - slides down */
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        border-top: 1px solid var(--border-color);
        border-bottom: 2px solid var(--primary);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 1rem;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        
        /* Hidden by default */
        display: none;
        opacity: 0;
        transform: translateY(-8px);
        transition: opacity var(--transition-base), transform var(--transition-base);
    }

    .nav-menu.active {
        display: flex;
        opacity: 1;
        transform: translateY(0);
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: 0.875rem 1rem;
        font-size: 1rem;
        border-radius: var(--radius-md);
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu li:last-child a {
        border-bottom: none;
    }

    /* CTA button full-width on mobile */
    .nav-menu .btn-nav {
        display: block;
        text-align: center;
        margin-top: 0.5rem;
        padding: 0.875rem 1rem !important;
        font-size: 1rem;
    }

    /* Ensure header has position relative for absolute dropdown */
    .header {
        position: sticky;
        top: 0;
    }

    .header-container {
        padding: 0.875rem 1rem;
        position: relative;
    }
}

/* ============= DARK MODE ============= */
[data-theme="dark"] .header {
    background: var(--bg-primary);
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .nav-menu.active {
    background: var(--bg-primary);
    border-bottom-color: var(--primary);
}

[data-theme="dark"] .hamburger span {
    background: var(--text-primary);
}