:root {
    --bg-color: #000000;
    --surface: #0a0a0a;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.06);
    --text-primary: #e8e8e8;
    --text-secondary: #6b6b6b;
    --accent: #00d4ff;
    --accent-dim: rgba(0, 212, 255, 0.15);
    --accent-glow: rgba(0, 212, 255, 0.25);
    --success: #34d399;
    --danger: #f87171;
    --warning: #fbbf24;
    --font-main: 'Outfit', sans-serif;
    --font-mono: 'Space Grotesk', sans-serif;
    --max: 860px;
}

/* Reset & layout */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 4rem;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-mono);
    color: var(--text-primary);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #fff;
}

/* Background decorations */
.background-decor {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.06;
}

.orb-1 {
    top: -10%;
    right: -10%;
    width: 40vw;
    height: 40vw;
    background: var(--accent);
}

.orb-2 {
    bottom: -15%;
    left: -10%;
    width: 45vw;
    height: 45vw;
    background: var(--accent);
}

/* Scroll progress bar */
.progress,
#progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), #00a3cc);
    width: 0%;
    z-index: 1000;
    transition: width .1s linear;
}

/* Navigation Header */
header.nav {
    position: sticky;
    top: 0;
    z-index: 900;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
}

.nav-inner {
    max-width: 1040px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    text-decoration: none;
}

.logo span {
    color: var(--accent);
}

.bars {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 16px;
}

.bars span {
    width: 3px;
    background: var(--accent);
    border-radius: 1px;
    display: block;
    animation: pulse 1.6s ease-in-out infinite;
}

.bars span:nth-child(1) {
    height: 5px;
    animation-delay: 0s;
}

.bars span:nth-child(2) {
    height: 9px;
    animation-delay: .15s;
}

.bars span:nth-child(3) {
    height: 13px;
    animation-delay: .3s;
}

.bars span:nth-child(4) {
    height: 16px;
    animation-delay: .45s;
}

@keyframes pulse {

    0%,
    100% {
        opacity: .35;
    }

    50% {
        opacity: 1;
    }
}

nav.links {
    display: flex;
    gap: 28px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
}

nav.links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    font-family: var(--font-mono);
}

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

.cta-btn {
    background: var(--accent);
    color: #000 !important;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.3px;
    font-family: var(--font-mono);
    box-shadow: 0 4px 12px var(--accent-dim);
    transition: all 0.2s ease;
}

.cta-btn:hover {
    opacity: 0.85;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--accent-glow);
}

@media (max-width: 720px) {
    nav.links {
        display: none;
    }
}

/* Page Intro Header */
.tools-header {
    text-align: center;
    padding: 4rem 1.5rem 2.5rem;
    max-width: 680px;
    margin: 0 auto;
}

.tools-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 0.8rem;
    background: linear-gradient(135deg, #fff 40%, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Main Dashboard Layout */
.dashboard-container {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 24px 3rem;
}

/* Tab Navigation buttons */
.tabs-nav {
    display: flex;
    align-items: center;
    background: #060709;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 9999px;
    padding: 5px;
    gap: 4px;
    margin: 0 auto 2.5rem;
    max-width: 680px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8), inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

.tab-link {
    flex: 1;
    background: transparent;
    border: none;
    color: #828e9a;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 11px 24px;
    border-radius: 9999px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    white-space: nowrap;
    letter-spacing: -0.01em;
}

.tab-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.04);
}

.tab-link.active {
    background: #00d4ff;
    color: #000000;
    font-weight: 700;
    box-shadow: 0 0 24px rgba(0, 212, 255, 0.45);
}

@media (max-width: 560px) {
    .tabs-nav {
        flex-direction: column;
        border-radius: 12px;
    }

    .tab-link {
        border-radius: 8px;
    }
}

/* Tab Panels */
.tool-panel {
    display: none;
    background: var(--surface);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.2rem;
    animation: fadeIn 0.4s ease-out;
}

.tool-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- What's My IP View --- */
.ip-hero-card {
    text-align: center;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 2rem;
    margin-bottom: 2.2rem;
}

.ip-hero-card h3 {
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 0.6rem;
}

.ip-display-value {
    font-family: var(--font-mono);
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: 700;
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-dim);
    letter-spacing: -0.5px;
    transition: filter 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.ip-display-value.blurred {
    filter: blur(10px);
    user-select: none;
    pointer-events: auto;
}

.geo-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.geo-block {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 1rem 1.25rem;
}

.geo-block.span-2 {
    grid-column: 1 / -1;
}

.geo-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.geo-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: filter 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.geo-value.blurred {
    filter: blur(6px);
    user-select: none;
    cursor: pointer;
}

@media (max-width: 560px) {
    .geo-info-grid {
        grid-template-columns: 1fr;
    }
}

/* --- Forms & Inputs --- */
.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

.form-row .btn-primary {
    margin-bottom: 0;
}

.form-label {
    display: block;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.input-control {
    width: 100%;
    background: #000;
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 0.85rem 1.1rem;
    font-family: var(--font-main);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s ease;
}

.input-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.15);
}

select.input-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b6b6b' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1.1rem center;
    padding-right: 2.5rem;
}

/* Quick Select Presets */
.presets-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.6rem;
}

.preset-badge {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.2s ease;
}

.preset-badge:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-dim);
}

/* Custom Buttons */
.btn-primary {
    background: var(--accent);
    color: #000;
    border: none;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.85rem 1.8rem;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 4px 12px var(--accent-dim);
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary:hover {
    opacity: 0.85;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--accent-glow);
}

.btn-primary:disabled {
    opacity: 0.5;
    pointer-events: none;
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

/* Spinner anim */
.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-top: 2px solid #000;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Output status blocks */
.result-status-card {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 1.5rem;
    margin-top: 1.8rem;
    display: none;
    text-align: center;
}

.result-status-card.visible {
    display: block;
}

.status-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
    font-family: var(--font-mono);
}

.status-badge.open {
    background: rgba(52, 211, 153, 0.15);
    color: var(--success);
    border: 1px solid rgba(52, 211, 153, 0.25);
}

.status-badge.closed {
    background: rgba(248, 113, 113, 0.15);
    color: var(--danger);
    border: 1px solid rgba(248, 113, 113, 0.25);
}

.status-badge.timeout {
    background: rgba(251, 191, 36, 0.15);
    color: var(--warning);
    border: 1px solid rgba(251, 191, 36, 0.25);
}

.result-message {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.result-message span {
    color: #fff;
    font-weight: 600;
}

/* DNS lookup display */
.dns-output-box {
    margin-top: 1.8rem;
    display: none;
}

.dns-output-box.visible {
    display: block;
}

.dns-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    background: #000;
}

.dns-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.dns-table th,
.dns-table td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--card-border);
}

.dns-table th {
    background: rgba(255, 255, 255, 0.01);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.dns-table tr:last-child td {
    border-bottom: none;
}

.dns-table td {
    color: var(--text-primary);
}

.dns-record-type-badge {
    background: var(--accent-dim);
    color: var(--accent);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.dns-table td.value-cell {
    font-family: monospace;
    font-size: 0.88rem;
    word-break: break-all;
    color: #c4c4c4;
}

/* Error message block */
.error-msg-box {
    background: rgba(248, 113, 113, 0.08);
    border: 1px solid rgba(248, 113, 113, 0.15);
    color: var(--danger);
    border-radius: 8px;
    padding: 1rem;
    font-size: 0.9rem;
    margin-top: 1.5rem;
    display: none;
    text-align: center;
}

.error-msg-box.visible {
    display: block;
}

/* Footer Section */
.footer-cta {
    max-width: var(--max);
    margin: 2rem auto 4rem;
    padding: 0 24px;
}

.cta-box {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(255, 255, 255, 0.01) 100%);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 120%, rgba(0, 212, 255, 0.05), transparent 60%);
    pointer-events: none;
}

.cta-box h2 {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: #fff;
}

.cta-box p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.8rem;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.cta-box a.run {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #000;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 12px 28px;
    border-radius: 100px;
    text-decoration: none;
    box-shadow: 0 4px 15px var(--accent-dim);
    transition: all 0.25s ease;
}

.cta-box a.run:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
    background: #fff;
    color: #000;
}

/* Site Footer */
footer.site {
    border-top: 1px solid var(--card-border);
    padding: 2rem 24px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    background-color: var(--bg-color);
}