* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --black: #000000;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-800: #000000;
    --gray-900: #000000;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--white);
    color: var(--black);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--black);
    text-decoration: none;
    transition: color 0.15s;
}

a:hover {
    color: var(--gray-800);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

nav {
    border-bottom: 1px solid var(--gray-200);
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--gray-800);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.15s;
    padding: 4px 0;
}

.nav-links a:hover {
    color: var(--black);
}

.nav-links a.active {
    color: var(--black);
    font-weight: 600;
}

.burger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.burger span {
    width: 24px;
    height: 2px;
    background: var(--black);
    transition: 0.3s;
}

@media (max-width: 1024px) {
    nav .container {
        flex-wrap: wrap;
    }

    .burger {
        display: flex;
        margin-left: auto;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        display: none;
        z-index: 99;
        border-top: 1px solid var(--gray-200);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 16px;
        padding: 12px 0;
        border-bottom: 1px solid var(--gray-200);
        display: block;
        width: 100%;
    }

    .nav-links a:last-child {
        border-bottom: none;
    }
}

.hero {
    padding: 120px 0;
    text-align: center;
    background: var(--white);
}

.hero h1 {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1.5px;
}

.highlight {
    background: var(--black);
    color: var(--white);
    padding: 0 8px;
}

.hero p {
    font-size: 18px;
    color: var(--gray-800);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons use Bootstrap */

.btn-full {
    width: 100%;
}

.features {
    padding: 80px 0;
    background: var(--gray-50);
}

.features h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 40px;
    letter-spacing: -0.5px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.card p {
    font-size: 14px;
    color: var(--gray-800);
}

.features h2 {
    text-align: center;
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 50px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: var(--white);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--gray-200);
    transition: border-color 0.2s;
}

.card:hover {
    border-color: var(--gray-300);
}

.stat-card {
    text-align: left;
    padding: 24px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    background: var(--white);
}

.stat-card h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    font-size: 40px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -1px;
    color: var(--black);
}

.card {
    background: var(--white);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--gray-100);
}

.neo-brutalism:hover {
    border-color: var(--black);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.card h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 10px;
}

.auth-page {
    background: var(--gray-50);
}

.auth-container {
    min-height: calc(100vh - 60px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--white);
}

.auth-card h1 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    font-size: 14px;
    font-family: inherit;
    background: var(--white);
    transition: border-color 0.15s;
    border-radius: 6px;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--black);
}

.dashboard {
    padding: 48px 0;
    min-height: calc(100vh - 60px);
    background: var(--gray-50);
}

.welcome {
    font-size: 16px;
    color: var(--gray-800);
    margin-bottom: 32px;
    font-weight: 500;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    text-align: left;
    padding: 24px;
    border: 1px solid var(--gray-200);
}

.stat-card h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -1px;
}

.active-card {
    background: var(--gray-50);
}

.inactive-card {
    background: var(--gray-50);
}

.action-bar {
    margin-bottom: 24px;
}

.table-card {
    padding: 24px;
    background: var(--white);
    overflow-x: auto;
    width: 100%;
}

@media (max-width: 1400px) {
    .table-card {
        padding: 16px;
    }
    
    table {
        min-width: 700px;
    }
}

@media (min-width: 1401px) {
    .table-card {
        overflow-x: visible;
    }
    
    table {
        min-width: unset;
        width: 100%;
    }
}

.table-card h2 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
    font-size: 14px;
}

th {
    font-weight: 600;
    color: var(--gray-800);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--gray-50);
}

code {
    background: var(--gray-50);
    padding: 2px 6px;
    font-size: 12px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

.badge {
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge.active {
    background: var(--black);
    color: var(--white);
}

.badge.inactive {
    background: var(--gray-200);
    color: var(--black);
}

@media (max-width: 768px) {
    table {
        font-size: 12px;
        min-width: 700px;
    }
    
    th, td {
        padding: 8px 10px;
    }
    
    .table-card {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: 8px;
    }
    
    .table-card h2 {
        font-size: 16px;
    }
    
    td .btn-sm {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    td .btn-sm i {
        font-size: 12px;
    }
}

.table-card h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
    font-size: 14px;
}

th {
    font-weight: 600;
    color: var(--gray-800);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

code {
    background: var(--gray-100);
    padding: 2px 6px;
    font-size: 13px;
    border-radius: 4px;
}

.badge {
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    display: inline-block;
}

.badge.active {
    background: var(--black);
    color: var(--white);
}

.badge.inactive {
    background: var(--gray-200);
    color: var(--black);
}

.alert {
    padding: 12px 16px;
    border: 1px solid var(--gray-200);
    margin-bottom: 20px;
    font-size: 14px;
    border-radius: 6px;
}

.alert-success {
    background: #f0f9f0;
    border-color: #c3e6c3;
}

.alert-error {
    background: #fdf0f0;
    border-color: #f5c6c6;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--gray-800);
}

.empty-state a {
    color: var(--black);
    font-weight: 700;
}

.auth-hint {
    margin-top: 20px;
    font-size: 14px;
    color: var(--gray-800);
    text-align: center;
}

footer {
    border-top: 1px solid var(--gray-200);
    padding: 24px 0;
    text-align: center;
    font-size: 14px;
    color: var(--gray-800);
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 48px;
    }
    
    .nav-links {
        gap: 15px;
        font-size: 14px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    /* Admin page responsive */
    .dashboard h1[style*="2.5em"] {
        font-size: 1.8em !important;
    }
    
    .grid[style*="grid-template-columns: 1fr 2fr"] {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }
    
    .dashboard .card {
        padding: 16px;
    }
    
    .dashboard .card table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        font-size: 13px;
    }
    
    .dashboard .card table th,
    .dashboard .card table td {
        padding: 8px 10px;
        white-space: nowrap;
    }
    
    .form-group input {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .grid[style*="grid-template-columns: 1fr 2fr"] {
        grid-template-columns: 1fr 1.5fr !important;
    }
}

@media (max-width: 480px) {
    .dashboard h1[style*="2.5em"] {
        font-size: 1.5em !important;
    }
    
    .dashboard .card {
        padding: 12px;
    }
    
    .btn-full {
        padding: 12px 16px !important;
        font-size: 14px !important;
    }
}

/* Custom button styles - black bg, blue on hover */
.btn {
    padding: 10px 20px !important;
    font-size: 15px !important;
    transition: all 0.3s ease !important;
}

.btn-sm {
    padding: 5px 10px !important;
    font-size: 13px !important;
}

.btn-primary, .btn-secondary {
    background-color: #000 !important;
    border-color: #000 !important;
    color: #fff !important;
}

.btn-primary:hover, .btn-primary:focus, .btn-primary:active,
.btn-secondary:hover, .btn-secondary:focus, .btn-secondary:active {
    background-color: #0d6efd !important;
    border-color: #0d6efd !important;
    color: #fff !important;
}

/* Rainbow button */
.btn.btn-rainbow {
    background-color: #0d6efd !important;
    border-color: #0d6efd !important;
    color: #fff !important;
    font-weight: 700 !important;
}

.btn.btn-rainbow:hover,
.btn.btn-rainbow:focus,
.btn.btn-rainbow:active {
    background-color: #000 !important;
    border-color: #000 !important;
    color: #fff !important;
    box-shadow: none !important;
    outline: none !important;
}

/* Outline buttons */
.btn-outline-info, .btn-outline-warning, .btn-outline-danger {
    background-color: #000 !important;
    border-color: #000 !important;
    color: #fff !important;
}

.btn-outline-info:hover, .btn-outline-info:focus, .btn-outline-info:active,
.btn-outline-warning:hover, .btn-outline-warning:focus, .btn-outline-warning:active,
.btn-outline-danger:hover, .btn-outline-danger:focus, .btn-outline-danger:active {
    background-color: #0d6efd !important;
    border-color: #0d6efd !important;
    color: #fff !important;
}

/* CS Widget */
.cs-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.cs-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #000;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transition: all 0.3s;
    font-size: 24px;
}

.cs-icon:hover {
    background: #0d6efd;
    transform: scale(1.1);
}

.cs-modal {
    display: none;
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 400px;
    max-width: 90vw;
    max-height: 600px;
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    z-index: 1001;
    overflow: hidden;
}

.cs-modal.active {
    display: block;
}

.cs-modal-header {
    background: #000;
    color: #fff;
    padding: 16px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cs-modal-close {
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.cs-modal-body {
    padding: 20px;
}

.cs-chat-area {
    height: 350px;
    overflow-y: auto;
    padding: 10px;
    background: #f5f5f5;
    border-radius: 8px;
    margin-bottom: 10px;
}

.cs-message {
    margin-bottom: 10px;
    padding: 8px 12px;
    border-radius: 12px;
    max-width: 80%;
    word-wrap: break-word;
}

.cs-message.user {
    background: #000;
    color: #fff;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

.cs-message.cs {
    background: #e5e5e5;
    color: #000;
    margin-right: auto;
    border-bottom-left-radius: 4px;
}

.cs-input-area {
    display: flex;
    gap: 8px;
}

.cs-input-area input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #d4d4d4;
    border-radius: 20px;
    font-size: 14px;
}

.cs-input-area button {
    padding: 8px 16px;
    background: #000;
    color: #fff;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: background 0.3s;
}

.cs-input-area button:hover {
    background: #0d6efd;
}

/* Admin Chat */
.admin-chat-list {
    max-height: 400px;
    overflow-y: auto;
}

.admin-chat-item {
    padding: 12px;
    border-bottom: 1px solid #e5e5e5;
    cursor: pointer;
    transition: background 0.2s;
}

.admin-chat-item:hover {
    background: #f5f5f5;
}

.admin-chat-item.active {
    background: #e5e5e5;
}

.admin-chat-area {
    height: 400px;
    overflow-y: auto;
    padding: 15px;
    background: #f5f5f5;
    border-radius: 8px;
    margin-bottom: 15px;
}

.admin-message {
    margin-bottom: 10px;
    padding: 8px 12px;
    border-radius: 12px;
    max-width: 80%;
}

.admin-message.user {
    background: #e5e5e5;
    color: #000;
    margin-right: auto;
}

.admin-message.cs {
    background: #000;
    color: #fff;
    margin-left: auto;
}

.admin-chat-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 20px;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .cs-modal {
        bottom: 80px;
        right: 10px;
        width: calc(100vw - 20px);
    }
    
    .admin-chat-container {
        grid-template-columns: 1fr;
    }
}