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

:root {
    --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Noto Sans SC', 'Noto Sans JP', 'Noto Sans KR', sans-serif;
    --font-mono: ui-monospace, 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
    --c-green: oklch(0.72 0.19 155);
    --c-red: oklch(0.55 0.15 25);
    --c-gray: oklch(0.65 0.02 260);
    --c-bg: oklch(0.985 0.005 260);
    --c-surface: oklch(1 0 0);
    --c-text: oklch(0.2 0.02 260);
    --c-text2: oklch(0.5 0.02 260);
    --c-border: oklch(0.9 0.01 260);
    --c-accent: oklch(0.55 0.18 245);
    --c-accent-soft: oklch(0.95 0.04 245);
    --c-green-soft: oklch(0.72 0.19 155 / 0.1);
    --tag-avail-fg: oklch(0.3 0.08 155);
    --tag-avail-bg: oklch(0.92 0.08 155);
    --c-recent-bg: oklch(0.97 0.03 80);
    --c-recent-dot: oklch(0.65 0.18 80);
    --c-orange: oklch(0.7 0.16 55);
    --tag-reserved-fg: oklch(0.35 0.08 55);
    --tag-reserved-bg: oklch(0.93 0.06 55);
    --panel-w: 520px;
    --radius: 0;
}

@media (prefers-color-scheme: dark) {
    html:not([data-theme="light"]) {
        --c-green: oklch(0.78 0.18 155);
        --c-red: oklch(0.72 0.14 25);
        --c-gray: oklch(0.6 0.02 260);
        --c-bg: oklch(0.13 0.02 260);
        --c-surface: oklch(0.18 0.02 260);
        --c-text: oklch(0.92 0.01 260);
        --c-text2: oklch(0.6 0.02 260);
        --c-border: oklch(0.25 0.02 260);
        --c-accent: oklch(0.7 0.15 245);
        --c-accent-soft: oklch(0.22 0.04 245);
        --c-green-soft: oklch(0.78 0.18 155 / 0.12);
        --tag-avail-fg: oklch(0.88 0.12 155);
        --tag-avail-bg: oklch(0.25 0.05 155);
        --c-recent-bg: oklch(0.22 0.03 80);
        --c-recent-dot: oklch(0.75 0.15 80);
        --c-orange: oklch(0.78 0.14 55);
        --tag-reserved-fg: oklch(0.85 0.1 55);
        --tag-reserved-bg: oklch(0.25 0.05 55);
    }
}
html[data-theme="dark"] {
    --c-green: oklch(0.78 0.18 155);
    --c-red: oklch(0.72 0.14 25);
    --c-gray: oklch(0.6 0.02 260);
    --c-bg: oklch(0.13 0.02 260);
    --c-surface: oklch(0.18 0.02 260);
    --c-text: oklch(0.92 0.01 260);
    --c-text2: oklch(0.6 0.02 260);
    --tag-avail-fg: oklch(0.88 0.12 155);
    --tag-avail-bg: oklch(0.25 0.05 155);
    --c-recent-bg: oklch(0.22 0.03 80);
    --c-recent-dot: oklch(0.75 0.15 80);
    --c-orange: oklch(0.78 0.14 55);
    --tag-reserved-fg: oklch(0.85 0.1 55);
    --tag-reserved-bg: oklch(0.25 0.05 55);
    --c-border: oklch(0.25 0.02 260);
    --c-accent: oklch(0.7 0.15 245);
    --c-accent-soft: oklch(0.22 0.04 245);
    --c-green-soft: oklch(0.78 0.18 155 / 0.12);
}

html { font-size: 16px; -webkit-font-smoothing: antialiased }
@media (min-width: 769px) { html { font-size: 18px } }
body {
    font-family: var(--font-sans);
    background: var(--c-bg);
    color: var(--c-text);
    min-height: 100dvh;
}

/* Layout */
main {
    min-height: 100dvh;
    max-width: 720px;
    width: 100%;
    margin: 0 auto;
    padding: 0.75rem clamp(1rem, 4vw, 2rem) clamp(1rem, 4vw, 2rem);
    display: flex;
    flex-direction: column;
}

/* Brand */
.brand {
    padding: 0 0 0.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand-logo {
    height: 1.75rem;
    width: auto;
}

/* Hero */
.hero {
    padding: 0.5rem 0 1rem;
}
.hero h1 {
    font-size: clamp(1.4rem, 3.5vw, 1.8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.3;
}
.hero h2 {
    font-size: clamp(0.85rem, 2vw, 1rem);
    font-weight: 400;
    color: var(--c-text2);
    margin-top: 0.35rem;
    line-height: 1.5;
}
.header-controls {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.lang-switch {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    height: 2rem;
    padding: 0 0.4rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    background: var(--c-surface);
    color: var(--c-text2);
    cursor: pointer;
    outline: none;
}
.lang-switch:focus { border-color: var(--c-accent) }
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    background: var(--c-surface);
    color: var(--c-text2);
    cursor: pointer;
    transition: border-color 0.15s;
}
.theme-toggle:hover { border-color: var(--c-accent) }
.theme-icon { pointer-events: none }

/* Idle */
main.idle .results-section { display: none }
main:not(.idle) .brand { margin-bottom: 1.5rem }

/* Search */
.search-section { position: relative }
.search-box {
    display: flex;
    gap: 0.5rem;
}
.input-wrap {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
}
.input-wrap input {
    width: 100%;
    padding: 0.7rem 2rem 0.7rem 1rem;
    font: inherit;
    font-size: 1rem;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius);
    background: var(--c-surface);
    color: var(--c-text);
    outline: none;
    transition: border-color 0.15s;
}
.input-wrap input::placeholder { color: var(--c-text2); opacity: 0.7 }
.input-wrap input:focus { border-color: var(--c-accent) }
.clear-btn {
    position: absolute;
    right: 0.25rem;
    background: none;
    border: none;
    font-size: 0.75rem;
    line-height: 1;
    color: var(--c-red);
    cursor: pointer;
    padding: 0.5rem;
    opacity: 0;
    transition: opacity 0.15s;
    pointer-events: none;
}
.input-wrap:hover .clear-btn:not([hidden]),
.input-wrap input:focus ~ .clear-btn:not([hidden]) {
    opacity: 1;
    pointer-events: auto;
}
.clear-btn[hidden] { display: none }

.search-box > button[type="submit"] {
    padding: 0.7rem 1.25rem;
    font: inherit;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    background: var(--c-accent);
    color: var(--c-bg);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: opacity 0.15s;
    white-space: nowrap;
}
.search-box > button[type="submit"]:hover:not(:disabled) { opacity: 0.85 }
.search-box > button[type="submit"]:disabled { opacity: 0.5; cursor: not-allowed }

.btn-spinner {
    width: 1rem; height: 1rem;
    animation: spin 0.8s linear infinite;
}
.btn-spinner[hidden] { display: none }
@keyframes spin { to { transform: rotate(360deg) } }

/* TLD toggle */
.tld-toggle {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0;
    font: inherit;
    font-size: 0.875rem;
    color: var(--c-text2);
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.15s;
}
.tld-toggle:hover { color: var(--c-accent) }

/* TLD editor */
.tld-editor {
    margin-top: 0.5rem;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius);
    background: var(--c-surface);
    overflow: hidden;
}
.tld-editor[hidden] { display: none }
.tld-editor textarea {
    display: block;
    width: 100%;
    padding: 0.625rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--c-text);
    background: transparent;
    border: none;
    outline: none;
    resize: none;
    overflow: hidden;
    field-sizing: content;
}
.tld-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.375rem 0.75rem;
    border-top: 1px solid var(--c-border);
}
.tld-hint { font-size: 0.8125rem; color: var(--c-text2) }
.tld-footer-actions { display: flex; gap: 0.75rem; align-items: center }
#tldReset, #tldSave {
    font: inherit;
    font-size: 0.8125rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.125rem 0;
}
#tldReset { color: var(--c-text2) }
#tldReset:hover { color: var(--c-accent) }
#tldSave { color: var(--c-accent); font-weight: 600 }
#tldSave:hover { opacity: 0.8 }

/* Results */
.results-section { margin-top: 1.5rem }
.results-section[hidden] { display: none }

.stats-line {
    font-size: 0.875rem;
    color: var(--c-text2);
    margin-bottom: 0.75rem;
}
.stats-brand {
    margin-right: 0.5em;
}
.stats-brand::after {
    content: '—';
    margin-left: 0.5em;
    font-weight: 400;
    color: var(--c-text2);
}

.results-list {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--c-border);
}

.result-group-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--c-text2);
    padding: 0.75rem 0.75rem 0.3rem;
    letter-spacing: 0.03em;
}
.result-group-label:first-child { padding-top: 0.25rem }

.result-item + .result-item { border-top: 1px solid var(--c-border) }

.result-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.75rem;
    border-left: 3px solid transparent;
    transition: background 0.12s;
}
.result-row.clickable { cursor: pointer }
.result-row.clickable:hover {
    background: var(--c-accent-soft);
    border-left-color: var(--c-border);
}
.result-row.active { background: var(--c-accent-soft) }

/* Hover on colored rows keeps their own color */
.result-row.row-available.clickable:hover { border-left-color: var(--c-green) }
.result-row.row-recent.clickable:hover { border-left-color: var(--c-recent-dot) }
.result-row.row-reserved.clickable:hover { border-left-color: var(--c-orange) }

.result-domain {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    font-weight: 500;
    white-space: nowrap;
}

/* Available: green left bar */
.result-row.row-available { border-left-color: var(--c-green) }
.result-row.row-available .result-domain { color: var(--c-green); font-weight: 600 }

/* Recent: warm left bar + dot */
.result-row.row-recent { border-left-color: var(--c-recent-dot) }
.result-row.row-recent .result-domain { color: var(--c-text) }
.result-row.row-recent::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--c-recent-dot);
    flex-shrink: 0;
}

/* Old registered: no bar, subdued */
.result-row.row-registered .result-domain { color: var(--c-text2) }

/* Reserved: amber left bar */
.result-row.row-reserved { border-left-color: var(--c-orange) }
.result-row.row-reserved .result-domain { color: var(--c-text2) }

/* Unknown: no bar, most subdued */
.result-row.row-unknown .result-domain { color: var(--c-gray) }

.result-meta {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--c-text2);
    white-space: nowrap;
}
.result-row.row-recent .result-meta {
    color: var(--c-recent-dot);
    font-weight: 500;
}

.result-tag {
    font-size: 0.6875rem;
    font-weight: 500;
    padding: 0.1rem 0.4rem;
    white-space: nowrap;
    letter-spacing: 0.02em;
    background: none;
}
.result-tag.available {
    color: var(--c-green);
    border: 1px solid var(--c-green);
}
.result-tag.reserved {
    color: var(--c-orange);
    border: 1px solid var(--c-orange);
}

.copy-btn {
    margin-left: auto;
    font: inherit;
    font-size: 0.6875rem;
    color: var(--c-text2);
    background: none;
    border: 1px solid var(--c-border);
    border-radius: 0;
    padding: 0.125rem 0.4rem;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.12s, border-color 0.12s;
    margin-left: auto;
}
.copy-btn:hover { color: var(--c-accent); border-color: var(--c-accent) }
.copy-btn.copied { color: var(--c-green); border-color: var(--c-green) }

/* Loading */
.loading-section {
    text-align: center;
    padding: 2rem 0;
}
.loading-section[hidden] { display: none }
.loading-bar {
    height: 3px;
    background: var(--c-border);
    overflow: hidden;
    max-width: 280px;
    margin: 0 auto 0.75rem;
}
.loading-fill {
    height: 100%;
    width: 35%;
    background: var(--c-accent);
    animation: slide 1.2s ease-in-out infinite;
}
@keyframes slide {
    0% { transform: translateX(-100%) }
    100% { transform: translateX(380%) }
}
.loading-text { font-size: 0.875rem; color: var(--c-text2) }

/* Error */
.error-section {
    text-align: center;
    padding: 2.5rem 0;
}
.error-section[hidden] { display: none }
.error-msg {
    color: var(--c-red);
    font-size: 1rem;
    margin-bottom: 0.75rem;
}
#errorDismiss {
    font: inherit;
    font-size: 0.875rem;
    padding: 0.4rem 1.25rem;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius);
    background: var(--c-surface);
    color: var(--c-text);
    cursor: pointer;
}

/* FAQ */
.faq-section {
    margin-top: auto;
    padding-top: 2rem;
    border-top: 1px solid var(--c-border);
}
.faq-heading {
    font-size: 1rem;
    font-weight: 600;
    color: var(--c-text2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}
.faq-item {
    border-bottom: 1px solid var(--c-border);
}
.faq-item:last-child { border-bottom: none }
.faq-item summary {
    padding: 0.75rem 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--c-text);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none }
.faq-item summary::after {
    content: '+';
    font-size: 1.125rem;
    font-weight: 300;
    color: var(--c-text2);
    flex-shrink: 0;
    transition: transform 0.2s;
}
.faq-item[open] summary::after {
    content: '\2212';
}
.faq-item p {
    padding: 0 0 0.75rem;
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--c-text2);
}

/* Footer */
.footer {
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid var(--c-border);
    font-size: 0.8125rem;
    color: var(--c-text2);
    text-align: center;
}
.footer-slogan { margin-bottom: 0.375rem }
.footer-links a {
    color: var(--c-text2);
    text-decoration: none;
}
.footer-links a:hover { color: var(--c-text); text-decoration: underline }
.footer-sep { margin: 0 0.375rem }

/* Detail panel */
.detail-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 0;
    height: 100dvh;
    background: var(--c-surface);
    border-left: 1px solid var(--c-border);
    overflow: hidden;
    transition: width 0.25s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 100;
    display: flex;
    flex-direction: column;
}
.detail-panel.open { width: var(--panel-w) }

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--c-border);
    flex-shrink: 0;
}
.panel-title {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}
.panel-close {
    font-size: 1.5rem;
    line-height: 1;
    background: none;
    border: none;
    color: var(--c-text2);
    cursor: pointer;
    padding: 0 0 0 0.75rem;
    flex-shrink: 0;
    transition: color 0.12s;
}
.panel-close:hover { color: var(--c-text) }

.panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    scrollbar-width: none;
}
.panel-body::-webkit-scrollbar { display: none }

.panel-status-hint {
    font-size: 0.9375rem;
    color: var(--c-text2);
    padding: 1rem 0;
}

/* Panel: site screenshot */
.preview-shot-wrap {
    display: block;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--c-bg);
}
.preview-shot {
    display: block;
    width: 100%;
    height: auto;
}
.preview-site-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.625rem 0 1rem;
}
.preview-favicon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}
.preview-site-link a {
    color: var(--c-text);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}
.preview-site-link a:hover { color: var(--c-accent) }

/* Panel: info grid */
.info-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem 1rem;
    align-items: baseline;
    font-size: 0.8125rem;
}
.info-label {
    color: var(--c-text2);
    white-space: nowrap;
}
.info-value {
    word-break: break-all;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

/* Status codes */
.status-code {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    padding: 0.2rem 0;
    font-size: 0.8rem;
}
.status-code code {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.1rem 0.35rem;
    background: var(--c-accent-soft);
}
.status-code-desc { color: var(--c-text2); font-size: 0.75rem }

.panel-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--c-text2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 1.25rem 0 0.5rem;
}
.panel-section-title:first-child { margin-top: 0 }

/* Raw WHOIS */
.raw-whois-pre {
    margin-top: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    line-height: 1.5;
    color: var(--c-text2);
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 0.75rem;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Panel overlay — desktop: hidden, mobile: visible */
.panel-overlay {
    display: none;
}

/* Responsive */
@media (max-width: 768px) {
    .detail-panel {
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100% !important;
        height: 0;
        border-left: none;
        border-top: 1px solid var(--c-border);
        border-radius: 12px 12px 0 0;
        transition: height 0.25s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .detail-panel.open { height: 65dvh }

    .panel-close { font-size: 1.75rem; padding: 0.25rem 0 0.25rem 1rem }

    .panel-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: oklch(0 0 0 / 0.4);
        z-index: 99;
        opacity: 0;
        transition: opacity 0.25s;
        pointer-events: none;
    }
    .panel-overlay.visible {
        opacity: 1;
        pointer-events: auto;
    }
    .panel-overlay[hidden] { display: none }
}