body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #15202b, #1a2633);
    margin: 0;
    padding: 0;
    color: #ffffff;
    display: flex;
    overflow-x: hidden;
}

/* Preloader Styling */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #15202b;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.preloader-logo {
    width: 80px;
    height: 80px;
    animation: spin 2s infinite linear;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hamburger-menu {
    display: none;
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 1100;
    cursor: pointer;
    font-size: 24px;
    color: #ffffff;
    background: #1da1f2;
    padding: 10px;
    border-radius: 5px;
}

.sidebar {
    width: 280px;
    background-color: #1a2633;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    padding: 20px 0;
    color: #ffffff;
    z-index: 1000;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.sidebar-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 40px;
    width: 100%;
}

.sidebar-header img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.sidebar-header img:hover {
    transform: scale(1.1);
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar li {
    margin: 30px 0;
}

.sidebar a {
    color: #ffffff;
    text-decoration: none;
    font-size: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    padding: 14px 20px;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.sidebar a:hover, .sidebar a.active {
    background-color: #1da1f2;
    color: #ffffff;
}

.sidebar .icon {
    font-size: 28px;
    width: 50px;
    text-align: center;
    transition: transform 0.3s ease;
}

.sidebar a:hover .icon, .sidebar a.active .icon {
    transform: scale(1.2);
}

.sidebar .text {
    margin-left: 15px;
}

.main-content {
    margin-left: 280px;
    flex-grow: 1;
    padding: 20px;
    transition: margin-left 0.3s ease;
}

.header {
    position: relative;
    width: 100%;
    height: 250px;
    background-image: url('header_image.jpg');
    background-size: 100% 100%; /* Stretch to fit container for desktop */
    background-repeat: no-repeat;
    background-position: center;
    z-index: 1;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.7);
    filter: brightness(1.2);
    background-color: #253341; /* Fallback background color */
}

.header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.2));
    z-index: 2;
    animation: gradientMove 5s infinite alternate;
}

@keyframes gradientMove {
    0% { background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.2)); }
    100% { background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), transparent); }
}

.container {
    max-width: 1000px;
    margin: 20px auto;
    background-color: #192734;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
    overflow: hidden;
}

.section {
    padding: 40px;
    display: none;
}

.section.active {
    display: block;
}

h2 {
    text-align: center;
    color: #1da1f2;
    margin-bottom: 25px;
    font-size: 28px;
    font-weight: 600;
    text-transform: uppercase;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
}

label {
    font-weight: 500;
    margin-bottom: 8px;
    display: block;
    color: #ccd6dd;
}

label i {
    color: #ffffff;
    margin-right: 8px;
}

input, select {
    width: 100%;
    padding: 14px;
    margin-bottom: 20px;
    border: 2px solid #38444d;
    border-radius: 4px;
    font-size: 14px;
    background-color: #253341;
    color: #ffffff;
    box-sizing: border-box;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus, select:focus {
    border-color: #1da1f2;
    box-shadow: 0 0 8px rgba(29, 161, 242, 0.5);
    outline: none;
}

button {
    background-color: #1da1f2;
    color: #ffffff;
    padding: 14px;
    border: none;
    border-radius: 50px;
    width: 100%;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

button:hover {
    background-color: #0d8ecf;
    transform: translateY(-2px);
}

#customerList, #salesDetails {
    margin: 20px 0;
    padding: 20px;
    background-color: #253341;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

#customerList {
    display: none;
}

#filterSection {
    margin: 20px;
    text-align: center;
}

#toggleCustomers {
    background-color: #1da1f2;
    margin: 20px 0;
}

#toggleCustomers:hover {
    background-color: #0d8ecf;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    padding: 12px;
    margin-bottom: 1px solid #38444d;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

li:hover {
    background-color: #1a2633;
}

li:last-child {
    margin-bottom: none;
}

#totalAmount {
    font-weight: 600;
    color: #00ff99;
    margin-top: 15px;
}

#packageImage, #customerProfile {
    margin-top: 25px;
    text-align: center;
}

#packageImage img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
}

.home-content {
    text-align: center;
}

.home-content h1 {
    font-size: 40px;
    color: #1da1f2;
    margin: 15px 0;
    font-weight: 700;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.5);
    animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(-20px); }
    100% { opacity: 1; transform: translateY(0); }
}

.home-content h3 {
    font-size: 22px;
    color: #ccd6dd;
    font-style: italic;
    margin-bottom: 35px;
    animation: slideIn 1s ease-in-out 0.3s;
    animation-fill-mode: both;
}

@keyframes slideIn {
    0% { opacity: 0; transform: translateX(-50px); }
    100% { opacity: 1; transform: translateX(0); }
}

.home-content h4 {
    font-size: 24px;
    color: #ffffff;
    margin: 25px 0 15px;
    font-weight: 600;
}

.gradient-heading {
    background: linear-gradient(90deg, #1da1f2, #ff4d4d);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
}

.home-content p {
    font-size: 16px;
    color: #8899a6;
    line-height: 1.8;
}

.home-content .highlight {
    color: #1da1f2;
    font-weight: 600;
}

.home-content .emoji {
    font-size: 28px;
    margin-right: 12px;
}

.home-content .cta {
    display: inline-block;
    background-color: #1da1f2;
    color: #ffffff;
    padding: 14px 30px;
    border-radius: 50px;
    text-decoration: none;
    margin-top: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.home-content .cta:hover {
    background-color: #0d8ecf;
    transform: translateY(-3px);
    box-shadow: 0 0 15px rgba(29, 161, 242, 0.7);
}

.pulsating {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(29, 161, 242, 0.7); }
    70% { box-shadow: 0 0 0 20px rgba(29, 161, 242, 0); }
    100% { box-shadow: 0 0 0 0 rgba(29, 161, 242, 0); }
}

.franchise-cta {
    background-color: #ff4d4d;
}

.franchise-cta:hover {
    background-color: #cc0000;
    box-shadow: 0 0 15px rgba(255, 77, 77, 0.7);
}

.headquarters-highlight {
    font-weight: 700;
    background: linear-gradient(90deg, #1da1f2, #ff4d4d);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.franchise-link {
    color: #1da1f2;
    text-decoration: none;
    font-weight: 600;
}

.franchise-link:hover {
    text-decoration: underline;
    color: #0d8ecf;
}

.card-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
}

.card {
    background-color: #253341;
    padding: 20px;
    border-radius: 10px;
    width: 250px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.card:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(29, 161, 242, 0.5);
}

.card p {
    margin: 0;
    font-size: 16px;
    color: #ccd6dd;
}

.customer-profile {
    background-color: #253341;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.delete-btn {
    background-color: #ff4d4d;
    color: #ffffff;
    padding: 6px 10px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 10px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.delete-btn:hover {
    background-color: #cc0000;
    transform: translateY(-2px);
}

.edit-btn {
    background-color: #1da1f2;
    color: #ffffff;
    padding: 6px 10px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 10px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
    margin-right: 2px;
}

.edit-btn:hover {
    background-color: #0d8ecf;
    transform: translateY(-2px);
}

.save-btn {
    background-color: #00ff77;
    color: #ffffff;
    padding: 6px 10px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 10px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
    margin-right: 2px;
}

.save-btn:hover {
    background-color: #00cc77;
    transform: translateY(-2px);
}

.cancel-btn {
    background-color: #ff4d4d;
    color: #ffffff;
    padding: 6px 10px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 10px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.cancel-btn:hover {
    background-color: #cc0000;
    transform: translateY(-2px);
}

.edit-input {
    width: 100%;
    padding: 4px;
    border: 1px solid #38444d;
    border-radius: 4px;
    font-size: 12px;
    background-color: #253341;
    color: #ffffff;
    box-sizing: border-box;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.edit-input:focus {
    border-color: #1da1f2;
    box-shadow: 0 0 8px rgba(29,161,242,0.5);
    outline: none;
}

.sales-entry {
    background-color: #253341;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0,0.3);
}

.separator {
    border: 0;
    height: 1px;
    background: #38444d;
    margin: 15px 0;
}

.logout-btn {
    background-color: #ff4d4d;
    color: #ffffff;
    padding: 2px;
    border: none;
    border-radius: 40px;
    width: 30%;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.logout-btn:hover {
    background-color: #cc0000;
    transform: translateY(-2px);
}

.social-links {
    margin: 10px 0;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-icon {
    font-size: 50px;
    transition: transform 0.3s ease, color 0.3s ease;
}

.social-icon.instagram {
    color: #E1306C;
}

.social-icon.instagram:hover {
    color: #C13584;
    transform: scale(1.2) rotate(10deg);
    box-shadow: 0 0 15px rgba(225, 48, 108, 0.7);
}

.social-icon.youtube {
    color: #FF0000;
}

.social-icon.youtube:hover {
    color: #FF3333;
    transform: scale(1.2) rotate(10deg);
    box-shadow: 0 0 15px rgba(255,51,51,0.7);
}

.social-icon.map {
    color: #34C759;
}

.social-icon.map:hover {
    color: #28A745;
    transform: scale(1.2) rotate(10deg);
    box-shadow: 0 0 15px rgba(52, 199, 89, 0.7);
}

.social-icon.whatsapp {
    color: #25D366;
}

.social-icon.whatsapp:hover {
    color: #20B058;
    transform: scale(1.2) rotate(10deg);
    box-shadow: 0 0 15px rgba(37, 211, 102, 0.7);
}

.notification-table {
    width: 100%;
    max-width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background-color: #253341;
    border-radius: 10px;
    overflow-x: auto;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.notification-table th, .notification-table td {
    padding: 8px;
    text-align: left;
    font-size: 12px;
    border-bottom: 1px solid #38444d;
    min-width: 80px;
}

.notification-table th {
    background-color: #1da1f2;
    color: #ffffff;
    font-weight: 600;
    text-transform: uppercase;
}

.notification-table td {
    color: #ccd6dd;
}

.notification-table tr:hover {
    background-color: #1a2633;
}

.notification-table .highlight {
    color: #00ff99;
    font-weight: 600;
}

.no-bookings {
    text-align: center;
    color: #ccd6dd;
    font-size: 16px;
    margin-top: 20px;
}

.branch-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.branch-card {
    background: #253341;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: glow 3s infinite ease-in-out;
}

@keyframes glow {
    0% { box-shadow: 0 0 10px rgba(29, 161, 242, 0.3); }
    50% { box-shadow: 0 0 20px rgba(29, 161, 242, 0.7); }
    100% { box-shadow: 0 0 10px rgba(29, 161, 242, 0.3); }
}

.branch-card:hover {
    transform: translateY(-5px);
}

.branch-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    margin-bottom: 10px;
    background: linear-gradient(90deg, #1da1f2, #ff4d4d);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
}

.branch-card p {
    font-size: 1rem;
    color: #ccd6dd;
    margin-bottom: 10px;
}

.branch-card .contact-info {
    font-size: 0.9rem;
    color: #ccd6dd;
    margin: 10px 0;
}

.branch-card .contact-info a {
    color: #1da1f2;
    text-decoration: none;
}

.branch-card .contact-info a:hover {
    text-decoration: underline;
}

.branch-card .social-links {
    margin: 10px 0;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.branch-card .social-icon {
    font-size: 30px;
}

.branch-book {
    display: inline-block;
    padding: 10px 20px;
    background-color: #1da1f2;
    color: #ffffff;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.branch-book:hover {
    background-color: #0d8ecf;
    transform: translateY(-3px);
    box-shadow: 0 0 15px rgba(29, 161, 242, 0.7);
}

.branch-card canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

@media (max-width: 768px) {
    .hamburger-menu {
        display: block;
    }

    .sidebar {
        width: 70%;
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding: 10px;
    }

    .header {
    height: auto;
    padding-bottom: 33.33%; /* Aspect ratio placeholder (e.g., 150/450) */
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

    .container {
        margin: 10px;
        padding: 20px;
    }

    .home-content h1 {
        font-size: 28px;
    }

    .home-content h3 {
        font-size: 18px;
    }

    .home-content h4 {
        font-size: 20px;
    }

    .home-content p {
        font-size: 14px;
    }

    .home-content .cta {
        padding: 12px 20px;
        font-size: 14px;
    }

    .headquarters-highlight {
        font-size: 16px;
    }

    input, select {
        padding: 10px;
        font-size: 14px;
    }

    h2 {
        font-size: 24px;
    }

    .sidebar a {
        font-size: 18px;
    }

    .sidebar .icon {
        font-size: 24px;
    }

    .social-icon {
        font-size: 24px;
    }

    .card {
        width: 100%;
    }

    .branch-container {
        grid-template-columns: 1fr;
    }

    .branch-card h3 {
        font-size: 1.5rem;
    }

    .notification-table {
        display: block;
        overflow-x: auto;
    }

    .notification-table th, .notification-table td {
        padding: 6px;
        font-size: 10px;
        min-width: 60px;
    }

    .edit-input {
        padding: 4px;
        font-size: 10px;
    }

    .edit-btn, .save-btn, .cancel-btn, .delete-btn {
        padding: 4px 6px;
        font-size: 8px;
        margin-right: 2px;
    }
}

@media (min-width: 769px) {
    .hamburger-menu {
        display: none;
    }

    .notification-table th, .notification-table td {
        padding: 8px;
        min-width: 80px;
    }
}