/* ============================================
   APP HEADER
   Top navigation and branding
   ============================================ */

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10px;
    margin-bottom: 10px;
}

.header-branding {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Logo Component */
.logo-container {
    display: flex;
    align-items: center;
    font-size: 1.8em;
    /* Base size, adjustable */
    line-height: 1;
    font-family: 'Outfit', 'Inter', sans-serif;
    gap: 1px;
}

.logo-text-arcane {
    font-weight: 400;
    /* Regular weight */
    color: var(--text-color);
    letter-spacing: -0.5px;
}

.logo-text-metr,
.logo-letter-i {
    font-weight: 800;
    color: var(--text-color);
    padding-right: 0;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
}

.logo-letter-i {
    display: inline-block;
    position: relative;
}

.logo-icon-x {
    position: absolute;
    height: 1.65em;
    width: 1.65em;
    left: 50%;
    top: 55%;
    /* Visual tweak for 'i' vertical center */
    transform: translate(-19%, -50%);
    /* Align x=12 (19%) with center of i */
    filter: drop-shadow(0 0 8px var(--accent-glow));
    z-index: 10;
    pointer-events: none;
    /* Let clicks pass through to link */
}

.header-controls {
    display: flex;
    gap: 8px;
    /* Reduced from 12px */
    align-items: center;
}

.theme-selector {
    padding: 6px 12px;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 0.85em;
    cursor: pointer;
    backdrop-filter: var(--glass-blur);
}

.info-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 8px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    opacity: 0.7;
    margin-right: 4px;
}

.info-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    opacity: 1;
    color: var(--text-color);
}

.header-divider {
    width: 1px;
    height: 24px;
    background: var(--divider-border);
    margin: 0 16px;
}

/* User Menu */
.user-menu-container {
    position: relative;
    display: flex;
    align-items: center;
}

.user-menu-trigger {
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 4px;
    border-radius: 20px;
    transition: background 0.2s;
}

.user-menu-trigger:hover {
    background: var(--button-bg);
}

.user-name {
    margin-right: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1em;
    overflow: hidden;
}

/* User Dropdown */
.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--popup-bg);
    border: 1px solid var(--popup-section-border);
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--popup-shadow);
    min-width: 200px;
    z-index: 1000;
    overflow: hidden;
    animation: fadeIn 0.1s ease-out;
}

.dropdown-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--divider-border);
    background: rgba(0, 0, 0, 0.02);
}

.dropdown-email {
    display: block;
    font-size: 0.9em;
    color: var(--text-muted);
}

.dropdown-items {
    padding: 4px 0;
}

.dropdown-item {
    display: block;
    width: 100%;
    text-align: left;
    padding: 8px 16px;
    background: transparent;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    transition: background 0.2s;
}

.dropdown-item:hover {
    background: var(--accent-hover);
    color: var(--text-color);
}

.dropdown-item.logout:hover {
    background: var(--danger-bg);
    color: var(--danger-color);
}

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

.sign-in-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}

.sign-in-btn:hover {
    filter: brightness(1.1);
    box-shadow: 0 0 8px var(--accent-glow);
}

.pro-badge-small {
    background: var(--warning-color);
    color: #000;
    font-size: 0.7em;
    padding: 2px 4px;
    border-radius: 4px;
    margin-left: 8px;
    font-weight: bold;
    box-shadow: 0 0 5px var(--warning-bg);
}

.admin-btn {
    color: var(--danger-color);
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    margin-right: 0;
    /* Removed margin */
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    cursor: pointer;
}

.admin-btn:hover {
    background: var(--danger-border);
}

/* Mobile Header Overrides */
@media (max-width: 768px) {
    .app-header {
        padding: 4px 8px;
        margin-bottom: 4px;
    }

    .app-header h1 {
        display: none;
    }

    .header-branding {
        gap: 4px;
    }

    /* Smaller logo on mobile */
    .logo-container {
        font-size: 1.1em;
    }

    .logo-icon-x {
        height: 1.3em;
        width: 1.3em;
    }

    /* Compact header controls */
    .header-controls {
        gap: 2px;
    }

    .header-divider {
        display: none;
    }

    .user-name {
        display: none;
    }

    .user-avatar {
        width: 28px;
        height: 28px;
        font-size: 0.9em;
    }

    .theme-selector {
        padding: 4px 6px;
        font-size: 0.7em;
    }

    .sign-in-btn {
        padding: 6px 10px;
        font-size: 0.8em;
    }

    .info-btn {
        padding: 4px;
        min-width: 28px;
        min-height: 28px;
        margin-right: 0 !important;
    }

    .pro-badge-small {
        font-size: 0.6em;
        padding: 1px 3px;
        margin-left: 2px;
    }

    /* Compact Admin Button */
    .admin-btn span {
        display: none;
    }

    .admin-btn {
        padding: 4px !important;
        margin-right: 2px !important;
    }
}