/* ============================================================
   Variables
   ============================================================ */
:root {
	--accent:       #3b9eff;
	--accent-dim:   #1a3a5a;
	--mono:         'JetBrains Mono', 'Fira Mono', 'Cascadia Code', monospace;
	--radius:       7px;
	--tr:           0.15s ease;
	--max-w:        1200px;
	--bg-hover:     #0c2240;
}

[data-theme="dark"] {
	--bg:           #0b0f1a;
	--bg-card:      #111827;
	--bg-input:     #0e1520;
	--border:       #1e2a3d;
	--border-inner: #1a2636;
	--text:         #c8d8e8;
	--text-dim:     #6a8aaa;
	--text-strong:  #e2eaf4;
	--text-code:    #4d9eff;
	--text-cmt:     #3a5f7a;
	--tab-active-bg:#0e1520;
}

[data-theme="light"] {
	--bg:           #f4f6f9;
	--bg-card:      #ffffff;
	--bg-input:     #f8f9fb;
	--border:       #dde3ec;
	--border-inner: #e8edf4;
	--text:         #2a3a4e;
	--text-dim:     #19212d;
	--text-strong:  #0f1923;
	--text-code:    #0060cc;
	--text-cmt:     #9aabb8;
	--tab-active-bg:#ffffff;
	--bg-hover:     #c8d8f0;
}

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

/* ============================================================
   Base — 19px = 15px × 1.25
   ============================================================ */
html { font-size: 19px; }

body {
	font-family: var(--mono);
	background: var(--bg);
	color: var(--text);
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	transition: background var(--tr), color var(--tr);
	-webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 18px 40px;
	border-bottom: 0.5px solid var(--border);
}

.brand {
	font-size: 20px;
	font-weight: 500;
	color: var(--text-strong);
	letter-spacing: -0.3px;
	text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-dot { color: var(--accent); }

.header-right { display: flex; align-items: center; gap: 10px; }

.hdr-btn {
	font-family: var(--mono);
	font-size: 13px;
	padding: 7px 16px;
	border: 1.5px solid var(--border);
	border-radius: 20px;
	color: var(--text-dim);
	background: var(--bg-card);
	cursor: pointer;
	text-decoration: none;
	display: inline-flex;
	align-items: center;
	gap: 6px;
	transition: border-color var(--tr), color var(--tr);
}
.hdr-btn:hover { border-color: var(--accent); border-width: 1.5px; color: var(--accent); text-decoration: none; }

.theme-btn { padding: 7px 11px; }
.theme-icon { width: 17px; height: 17px; display: block; }

/* ============================================================
   Tabs bar — constrained to content column
   ============================================================ */
.tabs-wrap { border-bottom: 0.5px solid var(--border); }

.tabs-bar {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 0 40px;
	display: flex;
}

.tab {
	flex: 1;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 9px;
	padding: 14px 10px;
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: var(--text-dim);
	background: none;
	border: none;
	border-bottom: 2px solid transparent;
	cursor: pointer;
	transition: color var(--tr), border-color var(--tr), background var(--tr);
}
.tab:hover { color: var(--accent); }
.tab.active {
	color: var(--accent);
	border-bottom-color: var(--accent);
	background: var(--tab-active-bg);
}
.tab[aria-disabled="true"] { color: var(--text-dim); opacity: 0.4; cursor: default; }
.tab[aria-disabled="true"]:hover { color: var(--text-dim); }

.tab-badge {
	display: inline-block;
	font-size: 10px;
	padding: 2px 8px;
	border-radius: 4px;
	background: var(--bg-input);
	border: 1.5px solid var(--border-inner);
	color: var(--text-dim);
	max-width: 150px;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	letter-spacing: 0;
	text-transform: none;
}
.tab.active .tab-badge {
	background: rgba(59, 158, 255, 0.15);
	border-color: var(--accent);
	color: var(--accent);
}

/* ============================================================
   Panels
   ============================================================ */
.tab-panels {
	flex: 1;
	max-width: var(--max-w);
	width: 100%;
	margin: 0 auto;
	padding: 26px 40px 0;
}

.panel { display: none; flex-direction: column; gap: 18px; }
.panel.active { display: flex; }

/* ============================================================
   Cards
   ============================================================ */
.card {
	background: var(--bg-card);
	border: 0.5px solid var(--border);
	border-radius: var(--radius);
	overflow: hidden;
}

.card-label {
	font-size: 11px;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--accent);
	padding: 12px 22px;
	border-bottom: 0.5px solid var(--border-inner);
}

/* IP hero */
.ip-hero { padding: 24px 22px 15px; }
.ip-address {
	font-size: 42px;
	color: var(--text-strong);
	letter-spacing: -0.8px;
	font-weight: 400;
	line-height: 1.15;
	cursor: pointer;
	display: inline-block;
	border-radius: 5px;
	padding: 2px 6px;
	margin: -2px -6px;
	transition: background var(--tr);
}
.ip-address:hover { background: var(--bg-hover); }
.ip-address:hover::after { content: ' ⎘'; font-size: 26px; color: var(--accent); }
.ip-meta { font-size: 12px; color: var(--text-dim); margin-top: 7px; letter-spacing: 0.04em; }

/* Card rows */
.card-rows { border-top: 0.5px solid var(--border-inner); }
.card-row {
	display: flex;
	align-items: baseline;
	padding: 12px 22px;
	border-bottom: 0.5px solid var(--bg);
}
.card-row:last-child { border-bottom: none; }
.row-key {
	font-size: 11px;
	color: var(--text-dim);
	letter-spacing: 0.06em;
	text-transform: uppercase;
	width: 52px;
	flex-shrink: 0;
}
.row-sep { color: var(--border); margin: 0 16px; }
.row-val {
	font-size: 15px;
	color: var(--text);
	word-break: break-all;
	cursor: pointer;
	border-radius: 3px;
	padding: 1px 4px;
	margin: -1px -4px;
	transition: background var(--tr), color var(--tr);
}
.row-val:hover { background: var(--bg-hover); color: var(--accent); }
.row-val:hover::after { content: ' ⎘'; font-size: 11px; }
.row-val .dim { color: var(--text-dim); }

/* Code card */
.code-card { padding: 18px 22px; display: flex; flex-direction: column; gap: 7px; }
.code-section-label {
	font-size: 11px;
	color: var(--text-dim);
	letter-spacing: 0.06em;
	text-transform: uppercase;
	margin-bottom: 6px;
	margin-top: 12px;
}
.code-section-label:first-child { margin-top: 0; }

.code-row {
	display: grid;
	grid-template-columns: 520px 1fr;
	align-items: baseline;
	font-size: 15px;
}
.cmd {
	color: var(--text-code);
	cursor: pointer;
	border-radius: 4px;
	padding: 3px 6px;
	margin: -3px -6px;
	white-space: nowrap;
	display: inline-block;
	transition: background var(--tr);
}
.cmd:hover { background: var(--bg-hover); }
.cmd:hover::after { content: ' ⎘'; font-size: 11px; color: var(--accent); }
.cmt {
	color: var(--text-cmt);
	font-size: 13px;
	text-align: right;
	justify-self: end;
	white-space: nowrap;
}

.badge-new {
	font-size: 10px;
	background: var(--accent-dim);
	color: var(--accent);
	border: 0.5px solid var(--accent);
	border-radius: 3px;
	padding: 1px 5px;
	margin-left: 5px;
}

/* No IPv6 notice */
.no-v6-notice { display: flex; align-items: center; justify-content: center; padding: 36px 22px; }
.notice-text { font-size: 14px; color: var(--text-dim); text-align: center; }

/* ============================================================
   Section divider
   ============================================================ */
.section-divider {
	font-size: 11px;
	color: var(--text-dim);
	letter-spacing: 0.08em;
	text-transform: uppercase;
	display: flex;
	align-items: center;
	gap: 12px;
}
.section-divider::after { content: ''; flex: 1; height: 0.5px; background: var(--border); }

/* ============================================================
   GeoIP panel
   ============================================================ */
.ip-version-toggle { display: flex; gap: 8px; }
.ver-btn {
	font-family: var(--mono);
	font-size: 12px;
	padding: 6px 18px;
	border: 1.5px solid var(--border);
	border-radius: 20px;
	color: var(--text-dim);
	background: var(--bg-card);
	cursor: pointer;
	transition: all var(--tr);
}
.ver-btn.active { background: var(--accent-dim); border: 1.5px solid var(--accent); color: var(--accent); }

.geo-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; }
.geo-cell {
	padding: 14px 22px;
	border-right: 0.5px solid var(--border-inner);
	border-bottom: 0.5px solid var(--border-inner);
}
.geo-cell:nth-child(3n) { border-right: none; }
.geo-cell.geo-last-row { border-bottom: none; }
.geo-cell-label {
	font-size: 11px;
	color: var(--text-dim);
	letter-spacing: 0.06em;
	text-transform: uppercase;
	margin-bottom: 5px;
}
.geo-cell-val {
	font-size: 15px;
	color: var(--text);
	display: flex;
	align-items: center;
	gap: 9px;
	word-break: break-word;
}
.flag-icon { width: 26px; height: 19px; border-radius: 2px; object-fit: cover; flex-shrink: 0; }

/* ============================================================
   Status blocks
   ============================================================ */
.status-block {
	display: flex;
	align-items: center;
	gap: 14px;
	padding: 24px 22px;
	font-size: 14px;
	color: var(--text-dim);
	background: var(--bg-card);
	border: 0.5px solid var(--border);
	border-radius: var(--radius);
}
.status-warn { font-size: 20px; color: #c88a20; flex-shrink: 0; }
.spinner {
	width: 16px; height: 16px;
	border: 2px solid var(--border);
	border-top-color: var(--accent);
	border-radius: 50%;
	flex-shrink: 0;
	animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.retry-btn {
	font-family: var(--mono);
	font-size: 12px;
	padding: 6px 16px;
	border: 1.5px solid var(--border);
	border-radius: 20px;
	color: var(--accent);
	background: none;
	cursor: pointer;
	margin-left: auto;
	transition: border-color var(--tr);
}
.retry-btn:hover { border-color: var(--accent); }

.loading-dots { color: var(--text-dim); font-size: 28px; }

/* ============================================================
   API table (modal)
   ============================================================ */
.api-table {
	border: 0.5px solid var(--border);
	border-radius: var(--radius);
	overflow: hidden;
	margin: 16px 0;
}
.api-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	padding: 9px 16px;
	border-bottom: 0.5px solid var(--border-inner);
	font-size: 13px;
	gap: 12px;
}
.api-row:last-child { border-bottom: none; }
.api-row-hdr {
	font-size: 11px;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--text-dim);
	background: var(--bg);
}
.api-row-new { background: color-mix(in srgb, var(--accent) 6%, var(--bg-card)); }
.api-ep { color: var(--text-code); }
.api-note { font-size: 12px; color: var(--text-dim); margin-top: 10px; }
.api-note code { color: var(--text-code); background: var(--bg); padding: 1px 5px; border-radius: 3px; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
	max-width: var(--max-w);
	width: 100%;
	margin: 28px auto 0;
	padding: 16px 40px 24px;
	font-size: 13px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 10px;
}

.footer-credit { color: var(--text-dim); }
.footer-credit a {
	color: var(--accent);
	text-decoration: none;
	border-bottom: 1px solid transparent;
	transition: border-color var(--tr);
}
.footer-credit a:hover { border-bottom-color: var(--accent); text-decoration: none; }

/* Heart — fa-regular fa-heart, red, pulsing */
.heart-beat {
	color: #e03535;
	display: inline-block;
	animation: heartbeat 1.4s ease-in-out infinite;
}
@keyframes heartbeat {
	0%, 100% { transform: scale(1); }
	14%       { transform: scale(1.28); }
	28%       { transform: scale(1); }
	42%       { transform: scale(1.18); }
	56%       { transform: scale(1); }
}

.footer-links { display: flex; gap: 14px; align-items: center; }
.footer-link-btn {
	font-family: var(--mono);
	font-size: 13px;
	color: var(--accent);
	background: none;
	border: none;
	border-bottom: 1px solid transparent;
	cursor: pointer;
	padding: 0;
	transition: border-color var(--tr);
}
.footer-link-btn:hover { border-bottom-color: var(--accent); }

/* ============================================================
   Modals
   ============================================================ */
.modal-overlay {
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, 0.65);
	display: none;
	align-items: center;
	justify-content: center;
	z-index: 1000;
	padding: 24px;
}
.modal-overlay.open { display: flex; }

.modal-box {
	background: var(--bg-card);
	border: 0.5px solid var(--border);
	border-radius: var(--radius);
	width: 100%;
	max-width: 520px;
	overflow: hidden;
}
.modal-box-wide { max-width: 660px; }

.modal-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 16px 22px;
	border-bottom: 0.5px solid var(--border-inner);
}
.modal-title { font-size: 15px; font-weight: 500; color: var(--text-strong); }
.modal-close {
	font-size: 22px;
	color: var(--text-dim);
	background: none;
	border: none;
	cursor: pointer;
	line-height: 1;
	transition: color var(--tr);
}
.modal-close:hover { color: var(--text-strong); }

.modal-body {
	padding: 22px;
	font-size: 14px;
	color: var(--text);
	line-height: 1.7;
	display: flex;
	flex-direction: column;
	gap: 12px;
}
.modal-body strong { color: var(--text-strong); }
.modal-body a { color: var(--accent); }

/* ============================================================
   Copy toast
   ============================================================ */
.copy-toast {
	position: fixed;
	bottom: 32px;
	left: 50%;
	transform: translateX(-50%) translateY(12px);
	background: var(--bg-card);
	border: 1.5px solid var(--border);
	color: var(--accent);
	font-family: var(--mono);
	font-size: 13px;
	padding: 8px 20px;
	border-radius: 20px;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.2s ease, transform 0.2s ease;
	z-index: 2000;
}
.copy-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============================================================
   Copyable
   ============================================================ */
.copyable { cursor: pointer; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 680px) {
	html { font-size: 15px; }
	.site-header { padding: 14px 18px; }
	.tabs-bar { padding: 0 18px; }
	.tab { font-size: 10px; padding: 11px 4px; }
	.tab-badge { display: none; }
	.tab-panels { padding: 16px 18px 0; }
	.ip-address { font-size: 28px; }
	.code-row { grid-template-columns: 1fr; }
	.cmt { text-align: left; justify-self: start; }
	.geo-grid { grid-template-columns: 1fr 1fr; }
	.geo-cell:nth-child(3n) { border-right: 0.5px solid var(--border-inner); }
	.geo-cell:nth-child(2n) { border-right: none; }
	.site-footer { padding: 14px 18px 20px; }
}