/* ===================================
   MOBILE-SPECIFIC CSS FOR CHALLAN SYSTEM
   Link this file AFTER your main CSS
   =================================== */

/* Only apply these styles on mobile devices */
@media only screen and (max-width: 768px) {
    
    /* ===== CRITICAL FIXES ===== */
    * {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
    
    html, body {
        overflow-x: hidden !important;
        width: 100% !important;
        margin: 0 !important;
    }
    
    body {
        padding: 0 !important;
        background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%) !important;
    }
    
    /* ===== FIX NAVBAR LAYOUT ===== */
    .advanced-navbar {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        background: rgba(255, 255, 255, 0.98) !important;
        backdrop-filter: blur(20px) !important;
        border-radius: 0 !important;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15) !important;
        z-index: 9999 !important;
        border-bottom: 3px solid #FFD700 !important;
    }
    
    .navbar-container {
        height: 65px !important;
        padding: 0 15px !important;
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 !important;
    }
    
    /* Logo Section - Left Side */
    .navbar-logo {
        display: flex !important;
        align-items: center !important;
        gap: 10px !important;
        flex-shrink: 0 !important;
        z-index: 10001 !important;
    }
    
    .logo-icon {
        width: 42px !important;
        height: 42px !important;
        font-size: 20px !important;
        border-radius: 10px !important;
        flex-shrink: 0 !important;
    }
    
    .logo-text {
        font-size: 18px !important;
        font-weight: 800 !important;
        white-space: nowrap !important;
    }
    
    .logo-subtitle {
        font-size: 10px !important;
        margin-top: -3px !important;
    }
    
    /* Hide Desktop User Menu */
    .user-menu {
        display: none !important;
    }
    
    /* Mobile Menu Toggle - Right Side */
    .mobile-toggle {
        display: flex !important;
        flex-direction: column !important;
        justify-content: space-around !important;
        width: 32px !important;
        height: 32px !important;
        cursor: pointer !important;
        padding: 4px !important;
        z-index: 10001 !important;
        position: relative !important;
        background: transparent !important;
    }
    
    .mobile-toggle span {
        display: block !important;
        width: 100% !important;
        height: 3px !important;
        background: #2c2c2c !important;
        border-radius: 3px !important;
        transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
        transform-origin: center !important;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px) !important;
        background: #FFD700 !important;
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0 !important;
        transform: translateX(20px) !important;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px) !important;
        background: #FFD700 !important;
    }
    
    /* Mobile Navigation Menu - Full Screen Sidebar */
    .navbar-nav {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 85% !important;
        max-width: 320px !important;
        height: 100vh !important;
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 248, 248, 0.98) 100%) !important;
        backdrop-filter: blur(25px) !important;
        display: flex !important;
        flex-direction: column !important;
        gap: 0 !important;
        padding: 80px 20px 20px 20px !important;
        transform: translateX(-100%) !important;
        opacity: 0 !important;
        visibility: hidden !important;
        transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
        box-shadow: 4px 0 30px rgba(0, 0, 0, 0.3) !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
        z-index: 10000 !important;
    }
    
    .navbar-nav.active {
        transform: translateX(0) !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    /* Dark Overlay When Menu Opens */
    .navbar-nav.active::before {
        content: '' !important;
        position: fixed !important;
        top: 0 !important;
        left: 85% !important;
        width: 100vw !important;
        height: 100vh !important;
        background: rgba(0, 0, 0, 0.5) !important;
        z-index: -1 !important;
    }
    
    /* Navigation Items */
    .nav-item {
        width: 100% !important;
        margin-bottom: 10px !important;
        list-style: none !important;
    }
    
    .nav-link {
        display: flex !important;
        align-items: center !important;
        gap: 15px !important;
        width: 100% !important;
        padding: 16px 18px !important;
        font-size: 15px !important;
        border-radius: 12px !important;
        margin-bottom: 0 !important;
        background: white !important;
        color: #555 !important;
        text-decoration: none !important;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
        border-left: 4px solid transparent !important;
        transition: all 0.3s ease !important;
        font-weight: 600 !important;
    }
    
    .nav-link:active {
        transform: scale(0.98) !important;
    }
    
    .nav-link.active {
        background: linear-gradient(135deg, #2c2c2c, #1a1a1a) !important;
        color: #FFD700 !important;
        border-left: 4px solid #FFD700 !important;
        box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3) !important;
    }
    
    .nav-link i {
        font-size: 18px !important;
        min-width: 22px !important;
        text-align: center !important;
    }
    
    /* Logout Button in Mobile Menu */
    .logout-btn {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 10px !important;
        width: 100% !important;
        margin-top: 20px !important;
        padding: 16px 20px !important;
        font-size: 15px !important;
        border-radius: 12px !important;
        box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3) !important;
        background: linear-gradient(135deg, #e74c3c, #c0392b) !important;
        color: white !important;
        border: none !important;
        font-weight: 600 !important;
        cursor: pointer !important;
    }
    
    .logout-btn:active {
        transform: scale(0.98) !important;
    }
    
    /* ===== MAIN CONTAINER ===== */
    .container {
        margin-top: 65px !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        margin-bottom: 0 !important;
        border-radius: 0 !important;
        max-width: 100% !important;
        width: 100% !important;
        box-shadow: none !important;
    }
    
    /* ===== HEADER ===== */
    .header {
        padding: 20px 15px !important;
    }
    
    .header h1 {
        font-size: 22px !important;
        letter-spacing: 1px !important;
        margin-bottom: 8px !important;
    }
    
    .header .subtitle {
        font-size: 13px !important;
    }
    
    /* ===== COMPANY SECTION ===== */
    .company-section {
        padding: 20px 15px !important;
    }
    
    .company-input {
        font-size: 18px !important;
        padding: 14px !important;
        border-radius: 10px !important;
    }
    
    /* ===== INFO GRID ===== */
    .info-grid {
        display: flex !important;
        flex-direction: column !important;
        gap: 12px !important;
        padding: 20px 15px !important;
        grid-template-columns: 1fr !important;
    }
    
    .info-group {
        display: flex !important;
        flex-direction: row !important;
        align-items: stretch !important;
        background: white !important;
        border-radius: 10px !important;
        overflow: hidden !important;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
        border: 1px solid #e0e0e0 !important;
    }
    
    .info-label {
        flex: 0 0 115px !important;
        font-size: 11px !important;
        padding: 12px 12px !important;
        background: linear-gradient(135deg, #f8f9fa, #e9ecef) !important;
        border-right: 2px solid #FFD700 !important;
        font-weight: 700 !important;
        display: flex !important;
        align-items: center !important;
    }
    
    .info-input {
        flex: 1 !important;
        padding: 12px 12px !important;
        font-size: 14px !important;
        border: none !important;
        background: white !important;
    }
    
    /* ===== DATA ENTRY SECTION ===== */
    .data-entry-section {
        padding: 20px 15px !important;
    }
    
    .section-title {
        font-size: 17px !important;
        margin-bottom: 15px !important;
    }
    
    /* ===== TABLES - HORIZONTAL SCROLL ===== */
    .data-table,
    .bill-table {
        display: block !important;
        width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        border-radius: 10px !important;
    }
    
    .data-table table,
    .bill-table table {
        min-width: 100% !important;
    }
    
    .data-table th,
    .bill-table th {
        font-size: 11px !important;
        padding: 12px 8px !important;
        white-space: nowrap !important;
    }
    
    .data-table td,
    .bill-table td {
        font-size: 12px !important;
        padding: 10px 8px !important;
        white-space: nowrap !important;
    }
    
    .data-table select,
    .data-table input {
        font-size: 13px !important;
        padding: 8px !important;
        min-width: 80px !important;
    }
    
    /* ===== BUTTONS ===== */
    .btn-container {
        display: flex !important;
        flex-direction: column !important;
        gap: 12px !important;
        margin-top: 20px !important;
    }
    
    .btn {
        width: 100% !important;
        padding: 16px 20px !important;
        font-size: 15px !important;
        border-radius: 10px !important;
        font-weight: 700 !important;
    }
    
    .btn:active {
        transform: scale(0.97) !important;
    }
    
    /* ===== NOTIFICATIONS ===== */
    .notification {
        top: 75px !important;
        right: 10px !important;
        left: 10px !important;
        padding: 14px 18px !important;
        font-size: 14px !important;
        border-radius: 10px !important;
    }
    
    /* ===== PREVENT ZOOM ON INPUT ===== */
    input, select, textarea {
        font-size: 16px !important;
    }
    
    /* ===== BOTTOM SECTION ===== */
    .container > div:last-child {
        padding: 20px 15px !important;
    }
}

/* ===== VERY SMALL DEVICES ===== */
@media only screen and (max-width: 375px) {
    .logo-text {
        font-size: 16px !important;
    }
    
    .info-label {
        flex: 0 0 100px !important;
        font-size: 10px !important;
    }
}