/* ==========================================================================
   NAVIGATION STYLES - EXTRACTED FROM MAIN.CSS
   Modern responsive navigation with improved spacing and design
   ========================================================================== */

/* ==========================================================================
   NAVIGATION TABS - IMPROVED SPACING AND MODERN DESIGN
   ========================================================================== */

.nav-tabs {
    display: flex;
    gap: 3px;
    background: rgba(30, 41, 59, 0.9);
    padding: 4px;
    border-radius: 50px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(59, 130, 246, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.nav-tabs::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    z-index: -1;
}

.nav-tab {
    background: transparent;
    color: #94a3b8;
    border: none;
    padding: 14px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.3px;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    min-width: fit-content;
    flex-shrink: 0;
}

.nav-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.nav-tab:hover::before {
    opacity: 1;
}

.nav-tab:hover {
    color: #e2e8f0;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.2);
}

.nav-tab.active {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4), 0 0 20px rgba(59, 130, 246, 0.2);
    transform: translateY(-1px);
}

.nav-tab.active::before {
    opacity: 0;
}

/* Focus accessibility */
.nav-tab:focus {
    outline: 3px solid #60a5fa;
    outline-offset: 2px;
}

/* ==========================================================================
   RESPONSIVE NAVIGATION
   ========================================================================== */

/* Mobile responsive navigation */
@media (max-width: 768px) {
    .nav-tabs {
        flex-direction: column;
        gap: 2px;
        padding: 6px;
        border-radius: 20px;
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    .nav-tab {
        text-align: center;
        border-radius: 16px;
        padding: 16px 20px;
        font-size: 0.9rem;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .nav-tabs {
        gap: 1px;
        padding: 4px;
    }

    .nav-tab {
        padding: 14px 16px;
        font-size: 0.85rem;
        border-radius: 12px;
    }
}

/* Alternative Layout for Very Wide Screens */
@media (min-width: 1200px) {
    .nav-tabs {
        gap: 4px;
        padding: 5px;
    }

    .nav-tab {
        padding: 16px 28px;
        font-size: 0.9rem;
        letter-spacing: 0.4px;
    }
}

/* ==========================================================================
   ACCESSIBILITY FEATURES
   ========================================================================== */

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .nav-tab {
        transition: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .nav-tabs {
        background: #000000;
        border: 2px solid #ffffff;
    }

    .nav-tab {
        color: #ffffff;
    }

    .nav-tab.active {
        background: #ffffff;
        color: #000000;
    }
}