:root {
    --primary: #ff6b35;
    --secondary: #00d4aa;
    --accent: #ffd23f;
    --danger: #ff3366;
    --dark: #1a1a2e;
    --black: #000000;
    --white: #ffffff;
    --gray: #4a4a4a;
    --light: #f0f0f0;
    --pink: #ff90b3;
    --blue: #4dabf7;
    --purple: #9775fa;
    --border: 3px solid #000;
    --shadow: 5px 5px 0px #000;
    --shadow-sm: 3px 3px 0px #000;
    --shadow-lg: 8px 8px 0px #000;
}

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

body {
    font-family: 'Space Mono', 'Courier New', monospace;
    background-color: #fef3c7;
    background-image:
        radial-gradient(circle at 20% 50%, #fde68a 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, #fca5a5 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, #a5f3fc 0%, transparent 40%);
    min-height: 100vh;
    color: var(--black);
}

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

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 30px;
}

.logo {
    font-size: 28px;
    font-weight: 900;
    color: var(--black);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: -1px;
    background: var(--accent);
    padding: 10px 20px;
    border: var(--border);
    box-shadow: var(--shadow);
}

.logo:hover {
    transform: translate(2px, 2px);
    box-shadow: 3px 3px 0px #000;
}

.nav-links {
    display: flex;
    gap: 15px;
}

.nav-links a {
    color: var(--black);
    text-decoration: none;
    padding: 10px 20px;
    background: var(--white);
    border: var(--border);
    box-shadow: var(--shadow-sm);
    font-weight: 700;
    text-transform: uppercase;
    transition: all 0.1s ease;
}

.nav-links a:hover {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0px #000;
    background: var(--danger);
    color: var(--white);
}

/* Cards */
.card {
    background: var(--white);
    border: var(--border);
    box-shadow: var(--shadow-lg);
    padding: 24px;
    margin-bottom: 24px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 3px dashed var(--black);
}

.card-title {
    font-size: 18px;
    font-weight: 900;
    color: var(--black);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-badge {
    background: var(--primary);
    color: var(--white);
    padding: 6px 14px;
    border: 2px solid var(--black);
    font-size: 14px;
    font-weight: 900;
    box-shadow: var(--shadow-sm);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.tab {
    padding: 14px 24px;
    background: var(--white);
    color: var(--black);
    border: var(--border);
    cursor: pointer;
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    box-shadow: var(--shadow);
    transition: all 0.1s ease;
    font-family: inherit;
}

.tab:hover {
    transform: translate(2px, 2px);
    box-shadow: 3px 3px 0px #000;
}

.tab.active {
    background: var(--accent);
    transform: translate(5px, 5px);
    box-shadow: none;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: var(--border);
    font-size: 14px;
    font-weight: 900;
    cursor: pointer;
    transition: all 0.1s ease;
    text-decoration: none;
    text-transform: uppercase;
    font-family: inherit;
    box-shadow: var(--shadow);
}

.btn:hover {
    transform: translate(3px, 3px);
    box-shadow: 2px 2px 0px #000;
}

.btn:active {
    transform: translate(5px, 5px);
    box-shadow: none;
}

.btn-primary {
    background: var(--blue);
    color: var(--black);
}

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

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

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

.btn-sm {
    padding: 8px 14px;
    font-size: 12px;
    box-shadow: var(--shadow-sm);
}

.btn-sm:hover {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0px #000;
}

.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 900;
    color: var(--black);
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 1px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: var(--border);
    font-size: 14px;
    font-family: inherit;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: all 0.1s ease;
}

.form-input:focus {
    outline: none;
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0px #000;
    background: var(--accent);
}

.form-textarea {
    width: 100%;
    padding: 14px 16px;
    border: var(--border);
    font-size: 14px;
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: all 0.1s ease;
}

.form-textarea:focus {
    outline: none;
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0px #000;
    background: #fffbeb;
}

/* Lists */
.list {
    list-style: none;
}

.list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    background: var(--light);
    border: 2px solid var(--black);
    margin-bottom: 8px;
    gap: 10px;
}

.list-item:nth-child(odd) {
    background: var(--white);
}

.list-item:nth-child(even) {
    background: #e0f2fe;
}

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

.list-item-content {
    flex: 1;
    min-width: 0;
}

.list-item-title {
    font-weight: 900;
    color: var(--black);
    word-break: break-all;
    font-size: 14px;
}

.list-item-subtitle {
    font-size: 12px;
    color: var(--gray);
    margin-top: 4px;
    word-break: break-all;
}

.list-scrollable {
    max-height: 250px;
    overflow-y: auto;
    border: var(--border);
    padding: 10px;
    background: #fafafa;
}

/* URL Table */
.url-table {
    width: 100%;
    border-collapse: collapse;
    border: var(--border);
}

.url-table th,
.url-table td {
    padding: 14px;
    text-align: left;
    border: 2px solid var(--black);
}

.url-table th {
    font-weight: 900;
    color: var(--black);
    font-size: 12px;
    text-transform: uppercase;
    background: var(--accent);
    letter-spacing: 1px;
}

.url-table tr:nth-child(odd) td {
    background: var(--white);
}

.url-table tr:nth-child(even) td {
    background: #ecfdf5;
}

.url-table td {
    font-size: 14px;
}

.url-link {
    color: var(--black);
    text-decoration: none;
    word-break: break-all;
    font-weight: 700;
    background: var(--pink);
    padding: 2px 6px;
    border: 1px solid var(--black);
}

.url-link:hover {
    background: var(--primary);
}

/* Result Box */
.result-box {
    background: var(--light);
    padding: 16px;
    border: var(--border);
    margin-top: 16px;
    word-break: break-all;
    box-shadow: var(--shadow-sm);
}

.result-box.success {
    background: #bbf7d0;
    border-color: var(--black);
}

.result-box.error {
    background: #fecaca;
    border-color: var(--black);
}

/* Alert */
.alert {
    padding: 16px;
    border: var(--border);
    margin-bottom: 20px;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: #bbf7d0;
    color: var(--black);
}

.alert-error {
    background: #fecaca;
    color: var(--black);
}

/* Grid */
.grid {
    display: grid;
    gap: 24px;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--white);
    padding: 24px;
    border: var(--border);
    text-align: center;
    box-shadow: var(--shadow);
}

.stat-card:nth-child(1) {
    background: var(--accent);
}

.stat-card:nth-child(2) {
    background: var(--secondary);
}

.stat-card:nth-child(3) {
    background: var(--pink);
}

.stat-value {
    font-size: 42px;
    font-weight: 900;
    color: var(--black);
    line-height: 1;
}

.stat-label {
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    margin-top: 8px;
    letter-spacing: 1px;
    color: var(--black);
}

/* Login Page */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: var(--white);
    padding: 40px;
    border: var(--border);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
}

.login-title {
    text-align: center;
    font-size: 28px;
    font-weight: 900;
    margin-bottom: 30px;
    color: var(--black);
    text-transform: uppercase;
    letter-spacing: 2px;
    background: var(--accent);
    padding: 15px;
    border: var(--border);
    box-shadow: var(--shadow-sm);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--gray);
    font-weight: 700;
    text-transform: uppercase;
    border: 2px dashed var(--black);
    background: #fafafa;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--black);
    color: var(--white);
    padding: 16px 24px;
    border: 3px solid var(--accent);
    box-shadow: var(--shadow);
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.2s ease;
    font-weight: 700;
    text-transform: uppercase;
}

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

.toast.success {
    background: var(--secondary);
    color: var(--black);
    border-color: var(--black);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--light);
    border: 2px solid var(--black);
}

::-webkit-scrollbar-thumb {
    background: var(--black);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray);
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 15px;
    }

    .logo {
        font-size: 22px;
    }

    .tabs {
        justify-content: center;
    }

    .tab {
        padding: 10px 16px;
        font-size: 12px;
    }

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

    .list-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .list-item .btn-group {
        margin-top: 10px;
        width: 100%;
    }

    .stat-value {
        font-size: 32px;
    }
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--black);
}

/* Focus visible */
:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}