/* Layout Structure */

/* Sidebar Navigation */
.sidebar {
    width: 220px;
    min-height: 100vh;
    background: linear-gradient(180deg, var(--dark-light), var(--dark));
    padding: 20px 14px;
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    border-right: 3px solid var(--primary);
}

.nav-header {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--primary);
}

.nav-header .logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: #FFD700 !important;
    font-family: Georgia, serif;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.nav-header .user-info {
    font-size: 0.9rem;
    color: #FFD700 !important;
    font-weight: 600;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.nav-header .header-actions {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border-radius: var(--radius);
    color: var(--white) !important;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    transition: all 0.3s ease;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: linear-gradient(90deg, rgba(255, 215, 0, 0.15), transparent);
    color: var(--primary) !important;
    border-left-color: var(--primary);
    transform: translateX(4px);
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(255, 215, 0, 0.25), rgba(255, 215, 0, 0.1));
    color: var(--primary) !important;
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.2);
    border-left-color: var(--primary);
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.nav-item .icon {
    font-size: 1.2rem;
}

.nav-item.logout {
    margin-top: auto;
    color: #FF6B6B !important;
}

.nav-item.logout:hover {
    background: rgba(255, 107, 107, 0.1);
    border-left-color: #FF6B6B;
}

/* Main Content Area */
main.content {
    flex: 1;
    padding: 32px 40px;
    margin-left: 220px;
    min-height: 100vh;
}

/* Page Management */
.page {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.page.active {
    display: block;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h1 {
    color: var(--secondary) !important;
    font-size: 2.2rem;
    font-weight: 800;
    font-family: Georgia, serif;
    text-shadow: 0 2px 8px rgba(255, 215, 0, 0.2);
}

/* Mobile Navigation */
.mobile-nav {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 1280px) {
    main.content {
        padding: 24px 20px;
    }
}

@media (max-width: 1024px) {
    main.content {
        padding: 20px 16px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none !important;
        width: 0;
    }

    #dashboard-screen {
        overflow-x: hidden;
    }

    main.content {
        margin-left: 0;
        padding: 12px;
        padding-bottom: 80px;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .date-selector {
        flex-direction: column;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .login-container {
        padding: 32px 24px;
    }

    /* Mobile Bottom Navigation */
    .mobile-nav {
        display: flex !important;
        justify-content: space-around;
        align-items: center;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 70px;
        background: rgba(26, 26, 26, 0.95);
        backdrop-filter: blur(10px);
        z-index: 1001;
        box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.2);
    }

    .mobile-nav .nav-item {
        flex-direction: column;
        padding: 8px 12px;
        font-size: 0.65rem;
        gap: 4px;
        border-left: none;
        color: var(--gray-400);
    }

    .mobile-nav .nav-item.active {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: var(--dark) !important;
        box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
        border-radius: var(--radius);
    }

    .mobile-nav .nav-item .icon {
        font-size: 1.4rem;
    }
}