/* Mobile Header & Nav Improvements (Blue Gradient & Stacked Nav) */

@media (max-width: 768px) {

    /* Header Container - Blue Gradient */
    .header {
        margin-bottom: 15px;
        position: sticky;
        top: 0;
        z-index: 1000;
        background: linear-gradient(to right, #4facfe 0%, #00f2fe 100%) !important;
        padding: 15px 10px;
        border-bottom: none;
        display: flex;
        flex-direction: column !important;
        gap: 10px;
        align-items: center;
        width: 100%;
    }

    /* Row 1: Title Only (Centered) */
    .header-title-row {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .main-title {
        display: block !important;
        font-size: 1.1rem !important;
        /* Minimalist size */
        font-weight: 700;
        color: white !important;
        margin: 0;
        text-align: center;
        white-space: nowrap !important;
        /* Force single line */
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    }

    /* Row 2: Nav Row (Logo Hidden + Tabs) */
    .header-nav-row {
        width: 100%;
        display: block;
        overflow: visible;
    }

    /* Hide Logo on Mobile */
    .header-logo {
        display: none !important;
    }

    /* Navigation Tabs - Horizontal Carousel (Center aligned if fit, scroll if not) */
    .header .tabs {
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        white-space: nowrap !important;
        width: 100% !important;
        padding: 5px 0 !important;
        /* No side padding to maximize space */
        gap: 2px !important;
        /* Minimal gap */
        justify-content: flex-start !important;
        /* FIXES SCROLL BUG */
        margin: 0 !important;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    /* Remove extra centering */
    .header .tabs {
        justify-content: flex-start !important;
    }

    .header .tabs::-webkit-scrollbar {
        display: none;
    }

    .header .tab {
        flex: 0 0 auto !important;
        display: inline-flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        padding: 5px 8px !important;
        /* Minimal padding */
        min-width: auto !important;
        /* Allow shrinking */
        width: auto !important;
        background: transparent !important;
        border: none !important;
        color: rgba(255, 255, 255, 0.95) !important;
        text-decoration: none !important;
        font-size: 0.75rem !important;
        font-weight: 500 !important;
        border-radius: 10px;
        line-height: 1.1 !important;
        transition: transform 0.2s ease;
        margin: 0 2px !important;
        /* Tiny margin */
    }

    .header .tab i {
        font-size: 1.3rem !important;
        /* Good size icon */
        margin-bottom: 4px !important;
        display: block !important;
        filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
    }

    .header .tab i {
        font-size: 1.4rem !important;
        /* Larger icon */
        margin-bottom: 6px !important;
        display: block !important;
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    }

    .header .tab.active {
        background: rgba(255, 255, 255, 0.25) !important;
        color: white !important;
        transform: translateY(-2px);
    }

    html.dark-mode .header .tab.active {
        background: rgba(255, 255, 255, 0.2) !important;
        color: white !important;
    }

    /* Row 3: Auth Button - Big Pill Style */
    .auth-buttons {
        display: block !important;
        width: 100%;
        text-align: center;
        margin-top: 15px;
        margin-bottom: 10px;
    }

    .auth-buttons a {
        color: white !important;
        text-decoration: none;
        font-weight: 700;
        background: rgba(255, 255, 255, 0.25);
        /* Lighter transparent bg */
        padding: 12px 40px;
        border-radius: 30px;
        display: inline-block;
        font-size: 1.1rem;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        backdrop-filter: blur(5px);
        border: 1px solid rgba(255, 255, 255, 0.3);
        width: 80%;
        /* Make it wide */
        max-width: 300px;
    }

    body {
        padding-bottom: 0;
    }

    .container {
        padding-top: 0;
    }
}

/* Desktop Styles */
@media (min-width: 769px) {
    .header {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        /* Center content vertically */
        padding: 20px 40px;
        height: auto;
        min-height: 160px;
        /* Ensure height for absolute logo */
        gap: 5px;
        /* Minimal gap between Title and Tabs */
        background: #4facfe !important;
        background: linear-gradient(to right, #4facfe 0%, #00f2fe 100%) !important;
        position: relative !important;
        /* For absolute logo */
    }

    /* Row 1: Title (Centered) */
    .header-title-row {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 0 !important;
        /* No bottom margin */
        z-index: 2;
    }

    .main-title {
        display: block !important;
        font-size: 2.8rem;
        /* Slightly larger */
        font-weight: 700;
        color: white !important;
        margin: 0;
        text-align: center;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }

    /* Row 2: Nav Row (Tabs Only - Logo Absolute) */
    .header-nav-row {
        width: 100%;
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: center !important;
        /* Force Center Tabs */
        padding: 0;
        gap: 0;
        z-index: 2;
    }

    /* Logo Absolute Left - CORRECTED */
    .header-logo {
        display: block !important;
        position: absolute !important;
        left: 40px !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        height: 140px !important;
        width: auto !important;
        margin: 0 !important;
        z-index: 1;
        /* No mix-blend-mode for transparent logo */
    }

    .header .tabs {
        width: auto !important;
        display: flex !important;
        justify-content: center !important;
        padding: 0 !important;
        flex-wrap: wrap;
        margin-top: 5px !important;
        /* Slight spacing from title */
    }

    .header .tab {
        flex: 0 1 auto !important;
        padding: 10px 25px !important;
        font-size: 1.1rem !important;
        margin: 0 5px;
    }

    /* Row 3: Auth Button - Centered (Below Tabs) */
    .auth-buttons {
        display: flex !important;
        justify-content: center;
        align-items: center;
        width: 100%;
        margin-top: 15px;
        /* Space from tabs */
        padding-bottom: 10px;
        z-index: 2;
    }

    .auth-buttons a {
        color: white !important;
        text-decoration: none;
        font-weight: 600;
        background: rgba(255, 255, 255, 0.2);
        padding: 10px 30px;
        border-radius: 25px;
        transition: background 0.3s ease;
        font-size: 1rem;
    }

    .auth-buttons a:hover {
        background: rgba(255, 255, 255, 0.3);
    }
}

/* ========================================
   DARK MODE OVERRIDES (Unified Colors)
   ======================================== */
html.dark-mode .header {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #4c1d95 100%) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* Fix Logo Visibility in Dark Mode */
html.dark-mode .header-logo {
    filter: brightness(0) invert(1);
}

/* Fix "Container" Separation Issue - Ensure container is transparent */
html.dark-mode .level-actions {
    background: transparent !important;
    box-shadow: none !important;
    border: none !important;
}

/* Fix Button Styles - Ensure no dark background behind button and correct color */
html.dark-mode .level-actions .btn {
    background: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%) !important;
    border-color: #4A90E2 !important;
    color: white !important;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3) !important;
    margin: 0 !important;
    /* Reset margins just in case */
}

html.dark-mode .level-actions .btn:hover {
    background: linear-gradient(135deg, #357ABD 0%, #2968A3 100%) !important;
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4) !important;
}