:root {
	--bg: #0a0a0f;
	--surface: #111118;
	--surface2: #1a1a24;
	--border: #2a2a3a;
	--accent: #00e5a0;
	--accent2: #7c3aed;
	--accent3: #f59e0b;
	--text: #e8e8f0;
	--muted: #6b6b8a;
	--danger: #f43f5e;
	--mono: 'DM Mono', monospace;
	--sans: 'Syne', sans-serif;
}

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

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

body::before {
	content: '';
	position: fixed;
	inset: 0;
	background-image:
		linear-gradient(rgba(0,229,160,0.03) 1px, transparent 1px),
		linear-gradient(90deg, rgba(0,229,160,0.03) 1px, transparent 1px);
	background-size: 40px 40px;
	pointer-events: none;
	z-index: 0;
}

.container {
	max-width: 1100px;
	margin: 0 auto;
	padding: 0 24px 80px;
	position: relative;
	z-index: 1;
}

header {
	padding: 48px 0 40px;
	border-bottom: 1px solid var(--border);
	margin-bottom: 40px;
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 16px;
}

.logo {
	display: flex;
	align-items: center;
	gap: 12px;
}

.logo-icon {
	width: 40px; height: 40px;
	background: linear-gradient(135deg, var(--accent), var(--accent2));
	border-radius: 10px;
	display: flex; align-items: center; justify-content: center;
	font-size: 18px;
}

h1 {
	font-size: clamp(22px, 4vw, 32px);
	font-weight: 800;
	letter-spacing: -0.5px;
	color: var(--text);
}

h1 span { color: var(--accent); }

.tagline {
	font-family: var(--mono);
	font-size: 12px;
	color: var(--muted);
	letter-spacing: 0.5px;
}

.formula-bar {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 20px 24px;
	margin-bottom: 32px;
	display: flex;
	align-items: center;
	gap: 8px;
	flex-wrap: wrap;
	font-family: var(--mono);
	font-size: 13px;
}

.formula-label {
	color: var(--muted);
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 1px;
	margin-right: 4px;
}

.formula-piece {
	background: var(--surface2);
	border: 1px solid var(--border);
	border-radius: 6px;
	padding: 4px 10px;
	color: var(--accent);
}

.formula-op { color: var(--muted); padding: 0 4px; }

.grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
}

@media (max-width: 700px) { .grid { grid-template-columns: 1fr; } }

.card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 16px;
	padding: 24px;
	transition: border-color 0.2s;
}

.card:hover { border-color: #3a3a50; }

.card-title {
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 1.5px;
	color: var(--muted);
	margin-bottom: 20px;
	display: flex;
	align-items: center;
	gap: 8px;
}

.card-title::before {
	content: '';
	width: 6px; height: 6px;
	border-radius: 50%;
	background: var(--accent);
	display: inline-block;
}

.model-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
	gap: 10px;
	margin-bottom: 24px;
}

.model-chip {
	background: var(--surface2);
	border: 1.5px solid var(--border);
	border-radius: 10px;
	padding: 10px 14px;
	cursor: pointer;
	transition: all 0.2s;
	font-family: var(--mono);
	font-size: 11px;
}

.model-chip:hover { border-color: var(--accent); }
.model-chip.active { border-color: var(--accent); background: rgba(0,229,160,0.08); }

.model-chip .name { font-weight: 500; color: var(--text); margin-bottom: 4px; }
.model-chip .price { color: var(--muted); font-size: 10px; }
.model-chip .price span { color: var(--accent3); }

.field { margin-bottom: 18px; }

label {
	display: block;
	font-family: var(--mono);
	font-size: 11px;
	color: var(--muted);
	text-transform: uppercase;
	letter-spacing: 0.5px;
	margin-bottom: 8px;
}

label em { color: var(--accent3); font-style: normal; }

.input-row {
	display: flex;
	align-items: center;
	gap: 0;
	background: var(--surface2);
	border: 1.5px solid var(--border);
	border-radius: 10px;
	overflow: hidden;
	transition: border-color 0.2s;
}

.input-row:focus-within { border-color: var(--accent); }

.input-row input {
	flex: 1;
	background: transparent;
	border: none;
	outline: none;
	padding: 12px 14px;
	font-family: var(--mono);
	font-size: 14px;
	color: var(--text);
}

.input-row .unit {
	padding: 0 14px;
	font-family: var(--mono);
	font-size: 11px;
	color: var(--muted);
	background: var(--bg);
	height: 100%;
	display: flex;
	align-items: center;
	border-left: 1px solid var(--border);
	white-space: nowrap;
}

input[type=range] {
	width: 100%;
	-webkit-appearance: none;
	height: 4px;
	background: var(--surface2);
	border-radius: 2px;
	outline: none;
	cursor: pointer;
}

input[type=range]::-webkit-slider-thumb {
	-webkit-appearance: none;
	width: 16px; height: 16px;
	border-radius: 50%;
	background: var(--accent);
	cursor: pointer;
	box-shadow: 0 0 0 3px rgba(0,229,160,0.2);
}

.range-labels {
	display: flex;
	justify-content: space-between;
	font-family: var(--mono);
	font-size: 10px;
	color: var(--muted);
	margin-top: 6px;
}

.results-card {
	background: linear-gradient(135deg, #0f1a14, #0f0f1a);
	border: 1.5px solid rgba(0,229,160,0.3);
	border-radius: 16px;
	padding: 28px;
	grid-column: 1 / -1;
}

.cost-display {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
	gap: 16px;
	margin-bottom: 24px;
}

.rate-row {
	display: flex;
	gap: 16px;
	align-items: center;
	justify-content: space-between;
	background: var(--bg);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 14px;
	margin-bottom: 20px;
}

.rate-row .field {
	flex: 1;
}

.rate-hint {
	font-family: var(--mono);
	font-size: 10px;
	color: var(--muted);
	white-space: nowrap;
}

@media (max-width: 700px) {
	.rate-row { flex-direction: column; align-items: stretch; }
	.rate-hint { white-space: normal; }
}

.cost-item {
	background: var(--bg);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 18px;
}

.cost-item .cost-label {
	font-family: var(--mono);
	font-size: 10px;
	text-transform: uppercase;
	letter-spacing: 1px;
	color: var(--muted);
	margin-bottom: 8px;
}

.cost-item .cost-value {
	font-family: var(--mono);
	font-size: 22px;
	font-weight: 500;
	color: var(--accent);
}

.cost-item .cost-sub {
	font-family: var(--mono);
	font-size: 10px;
	color: var(--muted);
	margin-top: 4px;
}

.cost-item.total { border-color: var(--accent); background: rgba(0,229,160,0.05); }
.cost-item.total .cost-value { font-size: 30px; }

.breakdown {
	background: var(--bg);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 16px;
	font-family: var(--mono);
	font-size: 12px;
	line-height: 2;
}

.breakdown-row {
	display: flex;
	justify-content: space-between;
	align-items: center;
	border-bottom: 1px solid var(--border);
	padding: 4px 0;
}

.breakdown-row:last-child { border-bottom: none; }
.breakdown-row .bl { color: var(--muted); }
.breakdown-row .bv { color: var(--text); }
.breakdown-row.highlight .bv { color: var(--accent); font-weight: 500; }

.projections {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
	gap: 10px;
	margin-top: 20px;
}

.proj-item {
	background: var(--bg);
	border: 1px solid var(--border);
	border-radius: 10px;
	padding: 14px;
	text-align: center;
}

.proj-count {
	font-family: var(--mono);
	font-size: 11px;
	color: var(--muted);
	text-transform: uppercase;
	letter-spacing: 0.5px;
	margin-bottom: 6px;
}

.proj-cost {
	font-family: var(--mono);
	font-size: 16px;
	color: var(--accent3);
}

.divider {
	border: none;
	border-top: 1px solid var(--border);
	margin: 24px 0;
}

.section-title {
	font-size: 13px;
	font-weight: 700;
	color: var(--text);
	margin-bottom: 16px;
	display: flex;
	align-items: center;
	gap: 8px;
}

.badge {
	background: rgba(124,58,237,0.2);
	border: 1px solid rgba(124,58,237,0.4);
	color: #a78bfa;
	font-family: var(--mono);
	font-size: 10px;
	padding: 2px 8px;
	border-radius: 4px;
}

.tabs {
	display: flex;
	gap: 4px;
	background: var(--surface2);
	border-radius: 10px;
	padding: 4px;
	margin-bottom: 20px;
	width: fit-content;
}

.tab {
	padding: 8px 18px;
	border-radius: 7px;
	font-family: var(--mono);
	font-size: 12px;
	cursor: pointer;
	color: var(--muted);
	border: none;
	background: transparent;
	transition: all 0.2s;
}

.tab.active {
	background: var(--surface);
	color: var(--accent);
	border: 1px solid var(--border);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.token-helper {
	background: var(--surface2);
	border: 1px dashed var(--border);
	border-radius: 10px;
	padding: 14px;
	margin-top: 8px;
}

.token-helper textarea {
	width: 100%;
	background: transparent;
	border: none;
	outline: none;
	font-family: var(--mono);
	font-size: 12px;
	color: var(--text);
	resize: vertical;
	min-height: 80px;
}

.token-count-display {
	font-family: var(--mono);
	font-size: 11px;
	color: var(--muted);
	margin-top: 8px;
	padding-top: 8px;
	border-top: 1px solid var(--border);
}

.token-count-display span { color: var(--accent3); }

.compare-table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; }
.compare-table th {
	text-align: left;
	padding: 10px 12px;
	color: var(--muted);
	font-size: 10px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	border-bottom: 1px solid var(--border);
}
.compare-table td {
	padding: 12px 12px;
	border-bottom: 1px solid rgba(42,42,58,0.5);
	color: var(--text);
	vertical-align: middle;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:hover td { background: rgba(0,229,160,0.03); }
.compare-table .cheapest td { background: rgba(0,229,160,0.05); }
.compare-table .cheapest td:first-child { border-left: 2px solid var(--accent); }
.pill { display: inline-block; background: rgba(0,229,160,0.15); color: var(--accent); border-radius: 4px; padding: 2px 7px; font-size: 10px; }
.pill.red { background: rgba(244,63,94,0.15); color: #fb7185; }
.pill.yellow { background: rgba(245,158,11,0.15); color: var(--accent3); }

footer {
	text-align: center;
	padding: 24px;
	font-family: var(--mono);
	font-size: 11px;
	color: var(--muted);
	border-top: 1px solid var(--border);
	margin-top: 40px;
}

.glow { animation: glow 2s ease-in-out infinite alternate; }
@keyframes glow {
	from { text-shadow: 0 0 10px rgba(0,229,160,0.4); }
	to { text-shadow: 0 0 20px rgba(0,229,160,0.8), 0 0 40px rgba(0,229,160,0.3); }
}

select {
	background: var(--surface2);
	border: 1.5px solid var(--border);
	border-radius: 10px;
	padding: 10px 14px;
	font-family: var(--mono);
	font-size: 13px;
	color: var(--text);
	outline: none;
	width: 100%;
	cursor: pointer;
}

select:focus { border-color: var(--accent); }

.info-box {
	background: rgba(245,158,11,0.08);
	border: 1px solid rgba(245,158,11,0.2);
	border-radius: 8px;
	padding: 12px 14px;
	font-family: var(--mono);
	font-size: 11px;
	color: #d4a017;
	line-height: 1.6;
	margin-top: 12px;
}