:root {
    --color-bg: #0A1A1A;
    --color-surface: rgba(0, 206, 201, 0.05);
    --color-surface-solid: #0D2626;
    --color-glass: rgba(129, 236, 236, 0.04);
    --color-border: rgba(0, 206, 201, 0.15);
    --color-border-focus: #00CEC9;
    --color-text: #E0F0EF;
    --color-text-secondary: #8BBFBD;
    --color-text-muted: #4D7A78;
    --color-primary: #00CEC9;
    --color-primary-hover: #00B5B1;
    --color-primary-glow: rgba(0, 206, 201, 0.25);
    --color-secondary: #81ECEC;
    --color-accent: #FDCB6E;
    --color-danger: #FF7675;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
}

.app-header {
    background: var(--color-surface-solid);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-primary);
}

.logo h1 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text);
}

.app-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.87rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary {
    background: var(--color-primary);
    color: #0A1A1A;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    box-shadow: 0 4px 16px var(--color-primary-glow);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border: none;
    cursor: pointer;
    font-size: 0.78rem;
    padding: 4px 8px;
}

.btn-ghost:hover {
    color: var(--color-text);
}

.search-section {
    background: var(--color-surface-solid);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
}

.search-section input {
    width: 100%;
    padding: 12px 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text);
    transition: border-color var(--transition);
}

.search-section input:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(0, 206, 201, 0.1);
}

.category-chips {
    display: flex;
    gap: 6px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.chip {
    padding: 5px 14px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    background: transparent;
    cursor: pointer;
    transition: all var(--transition);
}

.chip:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.chip.active {
    background: var(--color-primary);
    color: #0A1A1A;
    border-color: var(--color-primary);
}

.stats-bar {
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.table-section {
    background: var(--color-surface-solid);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.table-wrap {
    overflow-x: auto;
}

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

.port-table th,
.port-table td {
    padding: 10px 16px;
    text-align: left;
    border-bottom: 1px solid rgba(0, 206, 201, 0.06);
    font-size: 0.85rem;
}

.port-table th {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(0, 0, 0, 0.15);
    position: sticky;
    top: 0;
}

.port-table td:first-child {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--color-primary);
}

.port-table td:nth-child(2) {
    font-weight: 600;
}

.port-table tr:hover {
    background: rgba(0, 206, 201, 0.03);
}

.badge-proto {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-tcp {
    background: rgba(0, 206, 201, 0.15);
    color: #00CEC9;
}

.badge-udp {
    background: rgba(253, 203, 110, 0.15);
    color: #FDCB6E;
}

.badge-both {
    background: rgba(129, 236, 236, 0.15);
    color: #81ECEC;
}

.badge-security {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 700;
}

.security-encrypted {
    background: rgba(0, 206, 201, 0.15);
    color: #00CEC9;
}

.security-unencrypted {
    background: rgba(255, 118, 117, 0.15);
    color: #FF7675;
}

.security-mixed {
    background: rgba(253, 203, 110, 0.15);
    color: #FDCB6E;
}

/* Checker */
.checker-section,
.bookmarks-section {
    background: var(--color-surface-solid);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
}

.checker-section h2,
.bookmarks-section h2 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.checker-row {
    display: flex;
    gap: 10px;
}

.checker-row input {
    padding: 10px 14px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text);
    width: 200px;
}

.checker-row input:focus {
    outline: none;
    border-color: var(--color-border-focus);
}

.check-result {
    margin-top: 12px;
    font-size: 0.87rem;
}

.check-result .cr-found {
    color: var(--color-accent);
}

.check-result .cr-free {
    color: var(--color-primary);
}

.bookmarks-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.bm-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    cursor: pointer;
    transition: all var(--transition);
}

.bm-chip:hover {
    border-color: var(--color-primary);
}

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 24px;
    background: var(--color-primary);
    color: #0A1A1A;
    border-radius: var(--radius-sm);
    font-size: 0.87rem;
    font-weight: 600;
    box-shadow: 0 4px 24px var(--color-primary-glow);
    z-index: 200;
    animation: toastSlide 0.3s ease;
}

@keyframes toastSlide {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@media (max-width: 700px) {
    .app-main {
        padding: 16px;
    }

    .checker-row {
        flex-direction: column;
    }

    .checker-row input {
        width: 100%;
    }
}