/* assets/css/style.css */
/* Premium Theme & Styling for Transfer Confirmation & Receipt App */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #5f3dc4;       /* Deep Violet */
    --primary-light: #7048e8;
    --primary-dark: #512da8;
    --secondary: #0ca678;     /* Emerald green */
    --secondary-light: #12b886;
    --danger: #fa5252;        /* Vibrant red */
    --danger-light: #ff6b6b;
    --warning: #fcc419;       /* Amber/Yellow */
    --warning-light: #ffd43b;
    --text-main: #212529;
    --text-muted: #868e96;
    --bg-main: #f8f9fa;       /* Very light grey */
    --bg-card: #ffffff;
    --border-color: #e9ecef;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(95, 61, 196, 0.05), 0 4px 6px -2px rgba(95, 61, 196, 0.03);
    --shadow-lg: 0 20px 25px -5px rgba(95, 61, 196, 0.08), 0 10px 10px -5px rgba(95, 61, 196, 0.04);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation bar */
.navbar {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand span {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
}

.btn-nav-admin {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white !important;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.btn-nav-admin:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Main Container */
.container {
    max-width: 1200px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 1.5rem;
    flex-grow: 1;
}

/* Page Headers */
.page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Card Design */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    padding: 2.5rem;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

/* Form Styles */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group.full-width {
    grid-column: span 2;
}

@media (max-width: 768px) {
    .form-group.full-width {
        grid-column: span 1;
    }
}

label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: #495057;
}

.form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
    background-color: #f8f9fa;
}

.form-control:focus {
    border-color: var(--primary-light);
    background-color: #ffffff;
    box-shadow: 0 0 0 4px rgba(95, 61, 196, 0.1);
}

/* Custom Upload Area (Drag & Drop) */
.upload-container {
    border: 2px dashed #ced4da;
    border-radius: var(--radius-sm);
    padding: 2rem;
    text-align: center;
    background: #f8f9fa;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.upload-container:hover {
    border-color: var(--primary);
    background-color: rgba(95, 61, 196, 0.02);
}

.upload-container.dragover {
    border-color: var(--secondary);
    background-color: rgba(12, 166, 120, 0.05);
}

.upload-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.upload-text {
    font-size: 1rem;
    color: #495057;
    margin-bottom: 0.5rem;
}

.upload-subtext {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* Image Preview */
.preview-container {
    margin-top: 1.5rem;
    display: none;
    text-align: center;
}

.preview-image {
    max-width: 100%;
    max-height: 250px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    object-fit: contain;
}

.btn-remove-preview {
    margin-top: 0.5rem;
    background-color: var(--danger);
    color: white;
    border: none;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.btn-remove-preview:hover {
    background-color: var(--danger-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    gap: 0.5rem;
    text-decoration: none;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    box-shadow: 0 4px 10px rgba(95, 61, 196, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(95, 61, 196, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-success {
    background-color: var(--secondary);
    color: white;
}

.btn-success:hover {
    background-color: var(--secondary-light);
}

.btn-danger {
    background-color: var(--danger);
    color: white;
}

.btn-danger:hover {
    background-color: var(--danger-light);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--text-muted);
    background-color: #f1f3f5;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background-color: #d3f9d8;
    color: #2b8a3e;
    border: 1px solid #b2f2bb;
}

.alert-danger {
    background-color: #ffe3e3;
    color: #c92a2a;
    border: 1px solid #ffc9c9;
}

/* Admin Login Page */
.login-wrapper {
    max-width: 450px;
    width: 100%;
    margin: auto;
    padding: 2rem 1.5rem;
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

/* Admin Dashboard Layout */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background: white;
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.stat-info h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.stat-info p {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-main);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.pending {
    background-color: rgba(252, 196, 25, 0.15);
    color: #e67e22;
}

.stat-icon.confirmed {
    background-color: rgba(12, 166, 120, 0.15);
    color: var(--secondary);
}

.stat-icon.total {
    background-color: rgba(95, 61, 196, 0.15);
    color: var(--primary);
}

/* Filter Bar */
.filter-bar {
    background: white;
    padding: 1.2rem 1.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.filter-form {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
    width: 100%;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-control {
    padding: 0.5rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    outline: none;
    font-size: 0.9rem;
}

/* Custom Table Layout */
.table-responsive {
    width: 100%;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    background: white;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table th, .table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #495057;
    font-size: 0.9rem;
}

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

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
}

.badge-pending {
    background-color: #fff3bf;
    color: #e67e22;
}

.badge-confirmed {
    background-color: #d3f9d8;
    color: #2b8a3e;
}

.badge-rejected {
    background-color: #ffe3e3;
    color: #c92a2a;
}

/* Action Buttons inside Table */
.btn-action-group {
    display: flex;
    gap: 0.4rem;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    border-radius: 6px;
    font-weight: 500;
}

/* Thumbnail preview in table */
.proof-thumbnail {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.proof-thumbnail:hover {
    transform: scale(1.1);
}

/* Modal Popup for Proof View */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    max-width: 600px;
    width: 90%;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1.2rem;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-close:hover {
    color: var(--text-main);
}

.modal-image {
    width: 100%;
    max-height: 450px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    margin-top: 1rem;
}

/* Footer styling */
.footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: auto;
    background-color: white;
}

/* ---------------------------------------------------- */
/* PRINT LAYOUT SPECIFICS (kwitansi)                    */
/* ---------------------------------------------------- */

.receipt-container {
    background: white;
    max-width: 800px;
    margin: 2rem auto;
    padding: 3rem;
    border: 2px solid #212529;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.receipt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 3px double #212529;
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

.receipt-title {
    text-align: right;
}

.receipt-title h1 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: 0.1rem;
    color: #000;
}

.receipt-title p {
    font-size: 1rem;
    color: #495057;
    margin-top: 0.2rem;
}

.receipt-logo {
    display: flex;
    flex-direction: column;
}

.receipt-logo .logo-main {
    font-size: 2rem;
    font-weight: 800;
    color: #000;
}

.receipt-logo .logo-sub {
    font-size: 0.85rem;
    color: #495057;
    text-transform: uppercase;
}

.receipt-body {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.receipt-row {
    display: flex;
    border-bottom: 1px dashed #dee2e6;
    padding-bottom: 0.4rem;
}

.receipt-label {
    width: 220px;
    font-weight: 600;
    color: #495057;
    position: relative;
}

.receipt-label::after {
    content: ":";
    position: absolute;
    right: 1rem;
}

.receipt-value {
    flex-grow: 1;
    color: #000;
}

.receipt-value.terbilang {
    font-style: italic;
    background-color: #f8f9fa;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    border: 1px solid #e9ecef;
}

.receipt-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-top: 2rem;
}

.receipt-amount-box {
    border: 3px double #212529;
    background-color: #f8f9fa;
    padding: 0.8rem 2rem;
    font-size: 1.6rem;
    font-weight: 800;
    color: #000;
    display: inline-block;
}

.receipt-signature {
    text-align: center;
    width: 250px;
}

.receipt-signature .sig-date {
    margin-bottom: 5rem;
    font-size: 1rem;
}

.receipt-signature .sig-name {
    font-weight: 700;
    text-decoration: underline;
    font-size: 1.1rem;
}

.receipt-signature .sig-title {
    font-size: 0.9rem;
    color: #495057;
}

.print-actions {
    max-width: 800px;
    margin: 1rem auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* CSS Print Media Queries */
@media print {
    body {
        background-color: white;
        color: black;
    }
    
    .navbar, 
    .print-actions, 
    .footer {
        display: none !important;
    }
    
    .receipt-container {
        border: none;
        box-shadow: none;
        margin: 0;
        padding: 0;
        max-width: 100%;
        width: 100%;
    }
    
    .receipt-value.terbilang {
        background-color: transparent;
        border: none;
        padding: 0;
    }
    
    .receipt-amount-box {
        background-color: transparent;
    }
}

/* Autocomplete CSS styling */
.autocomplete-items {
    position: absolute;
    border: 1px solid var(--border-color);
    border-top: none;
    z-index: 99;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    box-shadow: var(--shadow-md);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    max-height: 200px;
    overflow-y: auto;
}

.autocomplete-item {
    padding: 0.8rem 1rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: left;
}

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

.autocomplete-item:hover {
    background-color: #f1f3f5;
    color: var(--primary);
}

.autocomplete-item strong {
    color: var(--text-main);
    font-weight: 600;
}

.autocomplete-item span {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: block;
    margin-top: 0.2rem;
}

/* ---------------------------------------------------- */
/* RESPONSIVE DESIGN UPDATES                            */
/* ---------------------------------------------------- */

/* Students Database Grid Layout */
.students-grid {
    display: grid;
    grid-template-columns: 1fr 2.2fr;
    gap: 1.5rem;
    align-items: start;
}

.students-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-width: 0; /* Prevents column from stretching on mobile */
}

.students-content {
    display: flex;
    flex-direction: column;
    min-width: 0; /* Prevents column from stretching on mobile */
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
    .students-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    /* Navbar Responsiveness */
    .navbar {
        padding: 0.8rem 1rem;
        flex-direction: column;
        gap: 0.8rem;
        align-items: center;
        position: relative; /* Avoid sticky behavior issues on small screens */
    }

    .navbar-brand {
        font-size: 1.3rem;
        white-space: nowrap;
    }

    .navbar-nav {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        padding-left: 0;
    }

    .nav-link {
        font-size: 0.9rem;
        white-space: nowrap;
        display: inline-flex;
        align-items: center;
    }

    .btn-nav-admin {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
        white-space: nowrap;
    }

    /* Page Header Responsiveness */
    .page-header {
        margin-bottom: 2rem;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }

    .page-header p {
        font-size: 0.95rem;
    }

    /* Card Padding on Mobile */
    .card {
        padding: 1.5rem;
    }

    /* Admin Dashboard Filter Bar Mobile */
    .filter-bar {
        padding: 1rem;
    }

    .filter-form {
        flex-direction: column;
        align-items: stretch;
        gap: 0.8rem;
    }

    .filter-group {
        width: 100%;
    }

    .filter-control {
        width: 100% !important;
        max-width: none !important;
    }

    .filter-form button, 
    .filter-form a {
        width: 100%;
        text-align: center;
        justify-content: center;
    }

    /* Table Padding adjustments on mobile */
    .table th, .table td {
        padding: 0.6rem 0.8rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .navbar-nav {
        gap: 0.6rem;
    }

    .nav-link {
        font-size: 0.8rem;
    }

    .btn-nav-admin {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }

    /* Further adjust card padding for very small screens */
    .card {
        padding: 1rem;
    }
}

/* ---------------------------------------------------- */
/* SIDEBAR PANEL LAYOUT                                 */
/* ---------------------------------------------------- */

.sidebar {
    width: 260px;
    height: 100vh;
    background: linear-gradient(180deg, var(--primary-dark), var(--primary));
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    box-shadow: 4px 0 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.sidebar-brand {
    padding: 1.8rem 1.5rem;
    font-size: 1.25rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    white-space: nowrap;
}

.sidebar-brand span {
    color: white;
}

.sidebar-brand span span {
    font-weight: 400;
    font-size: 0.85em;
    opacity: 0.8;
}

.sidebar-brand i {
    font-size: 1.4rem;
    color: var(--warning);
}

.sidebar-nav {
    list-style: none;
    padding: 1.5rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    flex-grow: 1;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.8rem 1rem;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    white-space: nowrap;
}

.sidebar-link i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.sidebar-link:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.08);
}

.sidebar-link.active {
    color: white;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    box-shadow: 0 4px 10px rgba(12, 166, 120, 0.2);
    font-weight: 600;
}

.sidebar-footer {
    padding: 1rem 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-link.btn-logout {
    color: #ffc9c9;
}

.sidebar-link.btn-logout:hover {
    color: white;
    background: linear-gradient(135deg, var(--danger), var(--danger-light));
    box-shadow: 0 4px 10px rgba(250, 82, 82, 0.2);
}

/* Main Content Wrapper */
.main-content {
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.main-content .container {
    margin: 2rem 0;
    max-width: 100%;
    width: 100%;
    padding: 0 2rem;
}

/* Mobile Header (Hidden by default) */
.mobile-header {
    display: none;
}

/* Overlay for Mobile */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(3px);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* Mobile Responsiveness for Sidebar */
@media (max-width: 992px) {
    .sidebar {
        left: -260px; /* Off screen */
        z-index: 1002;
        position: fixed;
    }
    
    .sidebar.active {
        left: 0;
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
    }
    
    .main-content .container {
        padding: 0 1rem;
        margin: 1.5rem 0;
    }
    
    .mobile-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: white;
        padding: 0.8rem 1.2rem;
        border-bottom: 1px solid var(--border-color);
        position: sticky;
        top: 0;
        z-index: 999;
        box-shadow: var(--shadow-sm);
    }
    
    .mobile-brand {
        font-size: 1.15rem;
        font-weight: 700;
        color: var(--primary);
        text-decoration: none;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        white-space: nowrap;
    }
    
    .mobile-brand span {
        background: linear-gradient(135deg, var(--primary), var(--primary-light));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    
    .mobile-toggle {
        background: transparent;
        border: none;
        color: var(--primary);
        font-size: 1.4rem;
        cursor: pointer;
        padding: 0.2rem 0.5rem;
        border-radius: var(--radius-sm);
        transition: var(--transition);
        outline: none;
    }
    
    .mobile-toggle:hover {
        background-color: var(--border-color);
    }
}