:root {
    --primary-color: #007bff; /* A standard light blue for primary actions, subtle */
    --secondary-color: #6c757d; /* Standard muted gray for secondary text/borders */
    --light-bg: #f8f9fa; /* Very light gray background */
    --dark-bg-light: #e9ecef; /* Slightly darker light gray for sections like navbar/footer */
    --text-dark: #343a40; /* Dark gray for main text for good contrast */
    --text-light: #ffffff; /* White text for elements with dark backgrounds */
    --accent-green: #28a745; /* Green - Keep for success messages */
    --red: #dc3545; /* Standard red for alerts/cancel */
    --border-light: #dee2e6; /* Light border color */
    --input-focus-shadow: rgba(0, 123, 255, 0.25); /* Light blue shadow for focus */

    /* Card Colors - Adjusted to be very subtle, mostly relying on light background and dark text */
    --card-total-deposit-icon: #00bfff; /* Light Blue */
    --card-balance-icon: #00ff00; /* Light Green */
    --card-total-spent-icon: #e1ff00; /* Light Pink */
    --card-total-deposit-text: #0056b3; /* Darker Blue */
    --card-balance-text: rgb(0, 160, 56); /* Darker Green */
    --card-total-spent-text: #ff004c; /* Darker Red */

    /* Gradient Colors (adjusted to be very subtle or removed) */
    --gradient-create-key-start: #e0f2f7; /* Very light blue */
    --gradient-create-key-end: #cce7f2; /* Light blue */
    --gradient-extend-key-start: #e9f7ec; /* Very light green */
    --gradient-extend-key-end: #d1eddb; /* Light green */
    --gradient-key-history-start: #f0f0f0; /* Light gray */
    --gradient-key-history-end: #e0e0e0; /* Medium gray */

    /* Navbar Specific Colors */
    --navbar-bg: #ffffff; /* Pure white navbar background */
    --navbar-text: #343a40; /* Dark gray for links */
    --navbar-active-text: var(--primary-color); /* Primary color for active link */
    --navbar-hover-text: var(--primary-color); /* Primary color on hover */
    --navbar-btn-outline-border: var(--primary-color);
    --navbar-btn-outline-text: var(--primary-color);
    --navbar-btn-outline-hover-bg: var(--primary-color);
    --navbar-btn-outline-hover-text: #ffffff;
    --navbar-btn-primary-hover-bg: #0056b3; /* Darker blue for hover */
    --navbar-badge-bg: #dc3545; /* Standard red for badge */

    /* Form & Border Colors */
    --input-border: #ced4da; /* Light gray border */
    --focus-shadow-color: var(--input-focus-shadow);
    --dashed-border: #e9ecef; /* Very light gray dashed border */
    --border-color: #dee2e6; /* For deposit tabs/tables */
    --gray-light: #f8f9fa; /* For bank info block */
    --gray-dark: #343a40; /* For form labels/general text */
}

/* --- Cấu trúc Sticky Footer --- */
html {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* Đảm bảo body chiếm ít nhất toàn bộ chiều cao màn hình */
    padding-top: 70px; /* Bù cho navbar cố định */
    background-color: var(--light-bg);
    color: var(--text-dark);
    margin: 0; /* Reset margin mặc định */
}

/* QUAN TRỌNG: Bạn cần bọc nội dung chính của trang (giữa navbar và footer) 
   trong một thẻ div với class="main-content" */
.main-content {
    flex: 1 0 auto; /* Cho phép nội dung chính co giãn để đẩy footer xuống */
}

footer {
    flex-shrink: 0; /* Ngăn footer bị co lại */
    background-color: var(--dark-bg-light) !important;
    color: var(--navbar-text) !important;
    padding: 30px 0;
}

/* --- Navbar --- */
.navbar {
    background: var(--navbar-bg) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05); /* Lighter shadow */
}

.navbar-brand,
.navbar-nav .nav-link {
    color: var(--navbar-text) !important;
}

.navbar-brand i {
    color: var(--primary-color);
}

.navbar-nav .nav-link.active,
.navbar-dark .navbar-nav .nav-link.active {
    color: var(--navbar-active-text) !important;
    font-weight: bold;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:not(.active):hover {
    color: var(--navbar-hover-text) !important;
}

.navbar-dark .navbar-nav .nav-item .nav-link.active {
    background-color: rgba(0, 0, 0, 0.05); /* Very subtle background for active link */
    border-radius: 5px;
    padding: 8px 15px;
    margin: 0 5px;
}

.navbar-nav .nav-link:not(.active) {
    padding: 8px 15px;
    margin: 0 5px;
}

.navbar-nav .btn-outline-light {
    border-color: var(--navbar-btn-outline-border);
    color: var(--navbar-btn-outline-text);
}

.navbar-nav .btn-outline-light:hover {
    background-color: var(--navbar-btn-outline-hover-bg);
    color: var(--navbar-btn-outline-hover-text);
}

.navbar-nav .btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-light); /* White text on primary button */
}

.navbar-nav .btn-primary:hover {
    background-color: var(--navbar-btn-primary-hover-bg);
    border-color: var(--navbar-btn-primary-hover-bg);
}

.navbar-nav .badge {
    background-color: var(--navbar-badge-bg) !important;
    color: white !important;
}

/* --- User Dashboard Header --- */
.user-dashboard-header {
    padding: 40px 30px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05); /* Lighter shadow */
    margin: 30px auto;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    width: 95%;
    max-width: 1200px;
}

.user-dashboard-header .welcome-text {
    flex: 1 1 300px;
    padding-right: 30px;
    margin-bottom: 20px;
}

.user-dashboard-header .welcome-text h1 {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.user-dashboard-header .welcome-text h1 .username {
    color: var(--primary-color); /* Using primary color for consistency */
}

.user-dashboard-header .welcome-text p {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 0;
}

.user-dashboard-header .info-cards-wrapper {
    flex: 2 1 600px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

/* --- Info Cards --- */
.info-card {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03); /* Very light shadow */
    min-width: 180px;
    flex: 1;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    border: 1px solid var(--border-light);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08); /* Lighter hover shadow */
}

.info-card .icon-wrapper {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 15px;
    font-size: 1.8rem;
    color: var(--text-dark); /* Dark text for icons */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.info-card .icon-wrapper.deposit { background-color: var(--card-total-deposit-icon); }
.info-card .icon-wrapper.balance { background-color: var(--card-balance-icon); }
.info-card .icon-wrapper.spent { background-color: var(--card-total-spent-icon); }

.info-card h4 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.info-card .value {
    font-size: 1.5rem;
    font-weight: bold;
}

.info-card .value.deposit { color: var(--card-total-deposit-text); }
.info-card .value.balance { color: var(--card-balance-text); }
.info-card .value.spent { color: var(--card-total-spent-text); }

/* --- Notification Section --- */
.notification-section .card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05); /* Lighter shadow */
    transition: all 0.3s ease;
}

.notification-section .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08); /* Lighter hover shadow */
}

.notification-section .card-header {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    border-radius: 12px 12px 0 0;
    padding: 15px 20px;
}

.notification-item {
    border-bottom: 1px solid var(--border-light);
    padding: 18px 20px;
}

.notification-item:last-child {
    border-bottom: none;
}

.notification-item h5 {
    font-size: 1.15rem;
    color: var(--text-dark);
    font-weight: 500;
}

.notification-item small {
    color: var(--secondary-color);
    font-size: 0.85rem;
}

.notification-item .badge {
    font-size: 0.75em;
    padding: 0.4em 0.8em;
    vertical-align: middle;
    border-radius: 5px;
}

.notification-item .badge-info {
    background-color: var(--dark-bg-light) !important; /* Very light gray */
    color: var(--text-dark) !important;
}

.notification-item .badge-success {
    background-color: var(--accent-green) !important;
}

.notification-item p {
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-top: 5px;
}

.btn-outline-secondary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-secondary:hover {
    background-color: var(--primary-color);
    color: white;
}

/* --- Footer --- */
footer a {
    color: var(--navbar-active-text) !important;
}

footer a:hover {
    color: var(--navbar-hover-text) !important;
}

/* --- Login & Register Pages --- */
.login-body,
.register-body {
    background-color: var(--light-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: var(--text-dark);
    padding: 20px;
}

.login-container,
.register-container {
    background-color: #ffffff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08); /* Lighter shadow */
    padding: 40px;
    max-width: 450px;
    width: 100%;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.register-container {
    max-width: 500px;
}

.login-container::before,
.register-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--primary-color);
}

.login-container h2,
.register-container h2 {
    font-size: 2.2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 30px;
    letter-spacing: 0.5px;
}

.login-container .form-label,
.register-container .form-label {
    font-weight: 500;
    color: var(--text-dark);
    text-align: left;
    display: block;
}

.login-container .form-control,
.register-container .form-control {
    border-radius: 8px;
    padding: 12px 15px;
    font-size: 1.05rem;
    border: 1px solid var(--input-border);
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.login-container .form-control:focus,
.register-container .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem var(--focus-shadow-color);
}

.btn-login,
.btn-register {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    font-size: 1.2rem;
    padding: 12px 30px;
    border-radius: 10px;
    margin-top: 20px;
    width: 100%;
    transition: background-color 0.2s ease-in-out, border-color 0.2s ease-in-out;
}

.btn-login:hover,
.btn-register:hover {
    background-color: var(--navbar-btn-primary-hover-bg);
    border-color: var(--navbar-btn-primary-hover-bg);
}

.login-container .text-muted a,
.register-container .login-link a,
.privacy-policy-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.login-container .text-muted a:hover,
.register-container .login-link a:hover,
.privacy-policy-link a:hover {
    text-decoration: underline;
}

.login-container .forgot-password {
    font-size: 0.95rem;
    text-align: right;
    margin-top: -10px;
    margin-bottom: 20px;
}

.login-container .register-link,
.register-container .login-link {
    margin-top: 30px;
    font-size: 1rem;
}

.privacy-policy-link {
    font-size: 0.9rem;
    margin-top: 15px;
    color: var(--secondary-color);
}

/* --- Account Settings Page --- */
.profile-container {
    padding: 30px 0 50px;
}

.profile-card {
    background-color: #ffffff;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05); /* Lighter shadow */
    padding: 40px;
    margin-top: 30px;
}

.profile-header {
    text-align: center;
    margin-bottom: 30px;
}

.profile-avatar {
    width: 100px;
    height: 100px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 3.5rem;
    margin: 0 auto 20px;
    box-shadow: 0 4px 10px var(--focus-shadow-color);
}

.profile-header h2 {
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 10px;
}

.profile-header .text-muted {
    color: var(--text-dark) !important;
}

.nav-tabs {
    border-bottom: 1px solid var(--border-light);
}

.nav-tabs .nav-link {
    color: var(--text-dark);
    border: none;
    border-radius: 8px 8px 0 0;
    padding: 12px 20px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    background-color: var(--light-bg);
    border-color: var(--input-border) var(--input-border) var(--light-bg);
    border-bottom: 3px solid var(--primary-color);
}

.nav-tabs .nav-link:hover:not(.active) {
    color: var(--primary-color);
    background-color: #f0f8ff; /* Very light blue */
}

.tab-content {
    padding-top: 20px;
}

.profile-info {
    background-color: var(--light-bg);
    border-radius: 10px;
    padding: 25px;
    border: 1px solid var(--border-light);
}

.profile-info-item {
    display: flex;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px dashed var(--dashed-border);
}

.profile-info-item:last-child {
    border-bottom: none;
}

.profile-info-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-right: 15px;
    width: 25px;
    text-align: center;
}

.profile-info-item strong {
    color: var(--text-dark);
    min-width: 120px;
}

.profile-info-item span {
    color: var(--text-dark);
    flex-grow: 1;
}

/* --- Form Styling (General) --- */
.form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-control,
.form-select {
    border-radius: 8px;
    padding: 12px 15px;
    border: 1px solid var(--input-border);
    transition: all 0.3s ease;
    font-size: 0.9em;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem var(--focus-shadow-color);
}

.btn-update-profile,
.btn-change-password {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 25px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
    border: none;
}

.btn-update-profile:hover,
.btn-change-password:hover {
    background-color: var(--navbar-btn-primary-hover-bg);
    transform: translateY(-2px);
}

/* --- Alerts --- */
.alert {
    border-radius: 8px;
    font-size: 0.95rem;
    padding: 15px 20px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-color: #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
}

/* --- General Section Card Layout (Deposit, Key Management) --- */
.container {
    max-width: 95%;
}

.section-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03); /* Lighter shadow */
    overflow: hidden;
    margin-bottom: 2rem;
    font-size: 0.9em;
}

.section-card .card-header {
    border-bottom: none;
    padding: 1rem 1.5rem;
    font-size: 1.3rem;
    font-weight: bold;
    color: #fff; /* White text for gradient headers */
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-card.create-key .card-header { background: linear-gradient(135deg, var(--gradient-create-key-start), var(--gradient-create-key-end)); }
.section-card.extend-key .card-header { background: linear-gradient(135deg, var(--gradient-extend-key-start), var(--gradient-extend-key-end)); }
.section-card.key-history .card-header { background: linear-gradient(135deg, var(--gradient-key-history-start), var(--gradient-key-history-end)); }
.section-card .card-body { padding: 1.5rem; }

.info-bar {
    background-color: var(--gray-light);
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    font-size: 0.9em;
    border: 1px solid var(--border-light); /* Added border for definition */
}

.info-bar .price-badge {
    font-size: 1.0em;
    padding: 0.4em 0.8em;
}

.info-bar .balance-text {
    font-size: 1.0em;
    font-weight: bold;
}

.form-label.fw-bold {
    color: var(--gray-dark);
    font-size: 0.9em;
}

#total_payment_create,
#total_payment_extend {
    font-size: 1.5rem;
}

.btn-lg {
    font-size: 1.1rem;
    padding: 0.75rem 1.25rem;
}

/* --- Deposit Page Specific --- */
.deposit-container {
    padding: 30px 15px 50px;
}

.deposit-section {
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05); /* Lighter shadow */
    overflow: hidden;
}

.section-header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px 25px;
    font-size: 1.5rem;
    font-weight: 600;
    border-radius: 10px 10px 0 0;
}

.section-content {
    padding: 25px;
}

.deposit-tabs .nav-link {
    border: 1px solid var(--border-color);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    padding: 10px 20px;
    color: var(--primary-color);
    font-weight: 600;
    margin-right: 5px;
    background-color: var(--dark-bg-light); /* Light gray for inactive tabs */
    transition: all 0.3s ease;
}

.deposit-tabs .nav-link.active {
    background-color: white;
    color: var(--primary-color);
    border-bottom: 1px solid white;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.03);
}

.deposit-tabs .nav-link:hover:not(.active) {
    background-color: #f0f0f0; /* Slightly darker gray on hover */
}

.tab-content {
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 10px 10px;
    padding: 20px;
    background-color: white;
}

.bank-info-block,
.notes-block {
    padding: 20px;
    border-radius: 8px;
    background-color: var(--gray-light);
    border: 1px solid #e9ecef;
    height: 100%;
}

.notes-block {
    background-color: #e6f7ff; /* Very light blue for notes, subtle */
    border-color: #91d5ff; /* Lighter blue border */
    color: var(--gray-dark);
    font-size: 0.95rem;
    text-align: left;
}

.notes-block strong {
    color: var(--primary-color); /* Primary color for strong text in notes */
}

.bank-info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: 500;
}

.bank-info-item:last-child {
    margin-bottom: 0;
}

.bank-info-label {
    color: var(--gray-dark);
    flex-basis: 35%;
    text-align: left;
}

.bank-info-value {
    color: var(--primary-color);
    font-weight: 700;
    flex-basis: 60%;
    text-align: right;
    word-break: break-all;
}

.copy-icon {
    cursor: pointer;
    color: var(--primary-color);
    margin-left: 10px;
    font-size: 1.1em;
    transition: color 0.2s ease;
}

.copy-icon:hover {
    color: var(--navbar-btn-primary-hover-bg); /* Darker blue on hover */
}

.vietqr-logo {
    max-width: 150px;
    margin: 20px auto 10px;
    display: block;
}

.qr-code-img {
    max-width: 250px;
    height: auto;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 5px;
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.new-transaction-form {
    text-align: left;
    padding: 20px;
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    margin-top: 20px;
}

.new-transaction-form .form-label {
    font-weight: 600;
    color: var(--gray-dark);
    margin-bottom: 8px;
}

.new-transaction-form .form-control {
    border-radius: 8px;
    padding: 10px 15px;
}

.btn-create-transaction {
    background-color: var(--accent-green);
    color: white;
    padding: 12px 25px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: background-color 0.3s ease;
    border: none;
    width: 100%;
}

.btn-create-transaction:hover {
    background-color: #218838;
}

.transaction-actions {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px dashed var(--border-color);
}

.btn-action {
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-transferred {
    background-color: var(--primary-color);
    color: white;
    border: none;
}

.btn-transferred:hover {
    background-color: var(--navbar-btn-primary-hover-bg);
    transform: translateY(-1px);
}

.btn-cancel {
    background-color: var(--red);
    color: white;
    border: none;
}

.btn-cancel:hover {
    background-color: #c82333;
    transform: translateY(-1px);
}

/* --- Status Badges (general) --- */
.status-badge,
.badge-status {
    padding: 0.3em 0.7em;
    border-radius: 0.25rem;
    font-size: 0.8em;
    font-weight: 600;
}

.status-pending { background-color: #ffc107; color: #856404; }
.status-transferred { background-color: #17a2b8; color: #0c5460; }
.status-completed { background-color: var(--accent-green); color: #fff; }
.status-failed, .status-cancelled { background-color: var(--red); color: #fff; }

.badge-danger { background-color: var(--red) !important; }
.badge-success { background-color: var(--accent-green) !important; }

.text-muted small {
    font-size: 0.75em;
}

/* --- History Table Section --- */
.history-table-section {
    margin-top: 30px;
    text-align: center;
    overflow-x: auto;
}

.history-table-section h2 {
    color: var(--primary-color);
    margin-bottom: 25px;
}

.table th,
.table td {
    vertical-align: middle;
}

.table {
    width: 100%;
    min-width: 768px; /* Giữ để cuộn ngang trên màn hình nhỏ nếu cần */
    font-size: 0.85em;
    margin-bottom: 0;
}

.table thead th {
    background-color: var(--primary-color); /* Primary color for table header */
    color: white;
    border-color: var(--primary-color);
    font-weight: bold;
    padding: 0.75rem;
}

.table tbody tr:hover {
    background-color: #f2f2f2;
}

.table-responsive {
    border-radius: 8px;
    overflow: auto;
    border: 1px solid var(--border-color); /* Add a border to the table responsive container */
}

/* --- Toast Notifications --- */
.alert-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
    z-index: 1050; /* Above Bootstrap modals */
    min-width: 280px;
    max-width: 90%;
    box-sizing: border-box;
}

.alert-toast.show {
    opacity: 1;
    transform: translateY(0);
}

.alert-toast h5 {
    font-size: 1.1em;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-toast p {
    font-size: 0.9em;
    margin: 0;
    line-height: 1.4;
}

.alert-toast .loading-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: rgba(0, 0, 0, 0.1);
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    overflow: hidden;
}

.alert-toast .loading-fill {
    height: 100%;
    width: 0;
    background-color: rgba(255, 255, 255, 0.7);
    animation: loading-toast 4s linear forwards; /* Adjust duration as needed */
}

/* Specific toast types */
.alert-success-toast {
    background-color: var(--accent-green);
    color: #fff;
}
.alert-success-toast .loading-fill { background-color: rgba(255, 255, 255, 0.7); }

.alert-danger-toast {
    background-color: var(--red);
    color: #fff;
}
.alert-danger-toast .loading-fill { background-color: rgba(255, 255, 255, 0.7); }


.alert-info-toast {
    background-color: var(--dark-bg-light); /* Using a light gray */
    color: var(--text-dark); /* Dark gray */
}
.alert-info-toast .loading-fill { background-color: rgba(0, 0, 0, 0.2); }


@keyframes loading-toast {
    from { width: 100%; }
    to { width: 0%; }
}

/* --- Responsive Adjustments --- */
@media (max-width: 992px) {
    .user-dashboard-header .welcome-text {
        text-align: center;
        padding-right: 0;
        margin-bottom: 30px;
        flex-basis: 100%; /* Chiếm toàn bộ chiều rộng */
    }
    .user-dashboard-header .info-cards-wrapper {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 56px; /* Giảm padding cho navbar nhỏ hơn */
    }
    
    .user-dashboard-header {
        padding: 20px 15px;
    }

    .user-dashboard-header .welcome-text h1 {
        font-size: 2rem;
    }
    
    .info-card {
        min-width: 150px; /* Giảm chiều rộng tối thiểu */
    }

    .profile-card {
        padding: 20px;
    }

    .profile-avatar {
        width: 80px;
        height: 80px;
        font-size: 2.5rem;
    }

    .profile-header h2 {
        font-size: 1.8rem;
    }

    .nav-tabs .nav-link {
        padding: 10px;
        font-size: 0.9rem;
    }

    .profile-info-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 0;
    }

    .profile-info-item i {
        margin-bottom: 8px;
    }

    .profile-info-item strong {
        min-width: auto;
        margin-bottom: 5px;
    }

    .btn-update-profile,
    .btn-change-password {
        font-size: 1rem;
        padding: 10px 20px;
        width: 100%; /* Nút chiếm toàn bộ chiều rộng */
    }

    .bank-info-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    .bank-info-label, .bank-info-value {
        text-align: left;
        flex-basis: auto;
    }
    .bank-info-value {
        font-size: 1.1em;
    }
    .copy-icon {
        margin-left: 0;
        margin-top: 5px;
    }

    .transaction-actions {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }
    .btn-action {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .login-container,
    .register-container {
        padding: 25px 20px;
    }

    .login-container h2,
    .register-container h2 {
        font-size: 1.8rem;
    }

    .profile-card {
        padding: 15px;
    }

    .profile-header h2 {
        font-size: 1.5rem;
    }

    .profile-header p {
        font-size: 0.9rem;
    }

    .nav-tabs .nav-link {
        font-size: 0.85rem;
        padding: 8px;
    }

    .profile-info-item strong,
    .profile-info-item span {
        font-size: 0.9rem;
    }

    .form-control,
    .form-select {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
    
    .deposit-tabs .nav-link {
        padding: 8px 10px;
        font-size: 0.9em;
    }
    
    .section-content {
        padding: 15px;
    }
    
    .bank-info-block, .notes-block {
        padding: 15px;
    }
}
.navbar-toggler {
    background-color: white;      /* hoặc transparent */
    border-color: black;
    padding: 6px 10px;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='black' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}