/* ============================================================
   MEGA LAB PEPTIDES - PEPTIDE CALCULATOR (megalab-peptides-calculator.php)
   Extracted from the template in Phase 4a (Ticket 7); rebuilt in Phase 4
   (SEO layer): H2 sections, presets, no inline styles. One block, tokens only.
   Sections alternate white / --c-off in document order: header (white),
   how-to (off), calculator (white), reference (off), presets (white),
   protocol (off), disclaimer (white).
   ============================================================ */

/* ---- Blocksy flush fix ---- */
.page-template-megalab-peptides-calculator .ct-main,
.page-template-megalab-peptides-calculator .entry-content,
.page-template-megalab-peptides-calculator-php .ct-main,
.page-template-megalab-peptides-calculator-php .entry-content {
	padding-top: 0 !important;
	margin-top: 0 !important;
}

/* Page-scoped token overrides (kept from 4a so the header, nav and push cart
   keep the global chrome while the instrument panels keep their own palette). */
.xlml-calc-page {
	--c-dark-3:    #112240;
	--c-border-dk: #1e3a5f;
	--c-text-dim:  #64748b;
	--btn-radius:  0px;
	--card-radius: 0px;
}

/* ---- Page wrapper ---- */
.xlml-calc-page {
	background: #fff;
	min-height: 100vh;
	font-family: var(--f-display);
	color: var(--c-text);
	padding: 0;
}
.xlml-calc-page *, .xlml-calc-page *::before, .xlml-calc-page *::after { box-sizing: border-box; }
.xlml-calc-page .xlml-page-header { background: #fff; }

/* ---- Shared section headings ---- */
.xlml-calc-h2 {
	font-family: var(--f-display);
	font-size: var(--t-h3);
	line-height: var(--lh-h3);
	font-weight: 600;
	color: var(--c-dark);
	margin: 0 0 var(--sp-3);
}
.xlml-calc-lead {
	font-size: var(--t-body);
	line-height: 1.6;
	color: var(--c-text-2);
	margin: 0 0 var(--sp-4);
}
.xlml-calc-lead--wide { max-width: 760px; }

/* ---- How to use (off-white) ---- */
.xlml-how-to {
	background: var(--c-off);
	border-bottom: 1px solid var(--c-border);
	padding-block: var(--sp-6);
}
.xlml-how-to-heading {
	font-family: var(--f-display);
	font-weight: 600;
	font-size: var(--t-h3);
	line-height: var(--lh-h3);
	color: var(--c-dark);
	text-align: center;
	margin: 0 0 var(--sp-4);
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 16px;
}
.xlml-how-to-heading::before, .xlml-how-to-heading::after {
	content: '';
	flex: 1;
	max-width: 120px;
	height: 1px;
	background: var(--c-border);
}
.xlml-how-to-inner {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0;
	flex-wrap: wrap;
}
.xlml-how-step {
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	padding: 0 32px;
	gap: 10px;
	flex: 1;
	min-width: 160px;
}
.xlml-how-icon {
	width: 64px; height: 64px;
	border: 1px solid var(--c-border);
	background: var(--c-light);
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--c-primary);
}
.xlml-how-num {
	font-family: var(--f-mono);
	font-size: var(--t-label);
	color: var(--c-primary);
}
.xlml-how-title {
	font-family: var(--f-display);
	font-weight: 600;
	font-size: var(--t-body);
	line-height: 1.3;
	color: var(--c-dark);
	margin: 0;
}
.xlml-how-desc {
	font-size: var(--t-small);
	line-height: var(--lh-small);
	color: var(--c-text-2);
	max-width: 200px;
	margin: 0;
}
.xlml-how-arrow {
	color: var(--c-border);
	flex-shrink: 0;
	padding-bottom: 24px;
}
@media (max-width: 600px) {
	.xlml-how-arrow { display: none; }
	.xlml-how-step { min-width: 100%; border-bottom: 1px solid var(--c-border); padding: 16px 0; }
	.xlml-how-step:last-child { border-bottom: none; }
	.xlml-how-to-heading::before, .xlml-how-to-heading::after { display: none; }
}

/* ---- Calculator (white) ---- */
.xlml-calc-container { background: #fff; padding-block: var(--sp-8); }
.xlml-calc-preset-note {
	font-family: var(--f-mono);
	font-size: var(--t-small);
	color: var(--n-700);
	border: 1px solid var(--c-border);
	border-left: 3px solid var(--c-primary);
	background: var(--c-off);
	padding: 12px 16px;
	margin: 0 0 var(--sp-4);
}
.xlml-calc-preset-note strong { color: var(--c-dark); font-weight: 600; }
.xlml-calc-preset-note a { color: var(--c-link); text-decoration: none; font-weight: 600; }
.xlml-calc-preset-note a:hover { text-decoration: underline; }
.xlml-calc-grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
	gap: 24px;
	align-items: start;
}
@media (max-width: 900px) { .xlml-calc-grid { grid-template-columns: 1fr; } }
@media (max-width: 768px) {
	.xlml-calc-container { padding-block: var(--sp-6); }
}

/* ---- Panels — white cards ---- */
.xlml-panel {
	background: #ffffff;
	border: 1px solid var(--c-border);
	padding: 28px;
	position: relative;
}
.xlml-panel-label {
	font-family: var(--f-mono);
	font-size: var(--t-label);
	color: var(--n-800);
	margin-bottom: 20px;
	display: flex;
	align-items: center;
	gap: 10px;
	font-weight: 600;
}
.xlml-panel-label::after {
	content: '';
	flex: 1;
	height: 1px;
	background: var(--c-border);
}
.xlml-panel-label--tight { margin-bottom: 0; }

/* ---- Form inputs ---- */
.xlml-field { margin-bottom: 20px; }
.xlml-field:last-child { margin-bottom: 0; }
.xlml-field label {
	display: flex;
	align-items: center;
	justify-content: space-between;
	font-family: var(--f-mono);
	font-size: var(--t-label);
	color: var(--n-800);
	margin-bottom: 8px;
	font-weight: 600;
}
.xlml-field label .unit-tag {
	background: var(--c-light);
	border: 1px solid var(--c-border);
	color: var(--n-800);
	padding: 2px 8px;
	font-size: var(--t-label);
	font-weight: 600;
}
.xlml-field input[type="number"],
.xlml-field select {
	width: 100%;
	background: var(--c-off);
	border: 1px solid var(--c-border);
	color: var(--c-dark);
	font-family: var(--f-mono);
	font-size: var(--t-body) !important;
	line-height: 1.4 !important;
	padding: 12px 16px;
	border-radius: 0;
	outline: none;
	transition: border-color 0.2s;
	appearance: none;
	-webkit-appearance: none;
	height: auto !important;
	min-height: 0 !important;
	box-shadow: none !important;
}
.xlml-field select { padding-right: 36px; }
.xlml-field input[type="number"]:focus,
.xlml-field select:focus {
	border-color: var(--c-primary);
	box-shadow: 0 0 0 3px var(--c-light) !important;
}
.xlml-field input[type="number"]::-webkit-outer-spin-button,
.xlml-field input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }
.xlml-select-wrap { position: relative; }
.xlml-select-wrap::after {
	content: '\25BE';
	position: absolute;
	right: 14px; top: 50%;
	transform: translateY(-50%);
	color: var(--c-primary);
	font-size: var(--t-label);
	pointer-events: none;
}

/* ---- Reset button ---- */
.xlml-reset-btn {
	display: flex; align-items: center; gap: 8px;
	background: transparent; border: 1px solid var(--c-border); color: var(--c-text-dim);
	padding: 10px 20px; font-family: var(--f-mono); font-size: var(--t-body);
	cursor: pointer; width: 100%; justify-content: center; margin-top: 12px;
	transition: border-color 0.2s, color 0.2s;
}
.xlml-reset-btn:hover, .xlml-reset-btn:focus-visible { border-color: var(--c-primary); color: var(--c-primary); }

/* ---- Output panel ---- */
.xlml-output-panel { display: flex; flex-direction: column; gap: 16px; }
.xlml-status-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.xlml-status-online { font-family: var(--f-mono); font-size: var(--t-label); color: var(--c-accent); display: flex; align-items: center; gap: 6px; }
.xlml-status-online::before { content: ''; width: 6px; height: 6px; background: var(--c-accent); border-radius: 50%; animation: xlml-pulse 2s ease-in-out infinite; }
@keyframes xlml-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
@media (prefers-reduced-motion: reduce) { .xlml-status-online::before { animation: none; } }

.xlml-empty-state {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding: 48px 24px;
	text-align: center;
	gap: 12px;
}
.xlml-empty-icon {
	width: 56px; height: 56px;
	border: 2px dashed var(--c-border);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--c-border);
}
.xlml-empty-state p {
	font-family: var(--f-mono);
	font-size: var(--t-small);
	color: var(--c-text-dim);
	margin: 0;
}
.xlml-empty-sub { opacity: 0.6; }

/* ---- Readout cards ---- */
.xlml-readout-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; margin-top: 8px; }
.xlml-readout-card {
	min-width: 0;
	background: var(--c-off);
	border: 1px solid var(--c-border);
	padding: 16px;
	position: relative;
}
.xlml-readout-card.highlight { border-color: var(--c-primary); }
.xlml-readout-card.highlight::before {
	content: '';
	position: absolute;
	top: 0; left: 0;
	width: 3px; height: 100%;
	background: var(--c-primary);
}
.xlml-readout-card .rc-label { font-family: var(--f-mono); font-size: var(--t-label); overflow-wrap: anywhere; color: var(--n-800); margin-bottom: 6px; font-weight: 600; }
.xlml-readout-card .rc-value { font-family: var(--f-mono); font-size: var(--t-h3); font-weight: 700; color: var(--c-dark); line-height: 1; }
.xlml-readout-card .rc-unit { font-family: var(--f-mono); font-size: var(--t-label); color: var(--n-500); margin-top: 4px; }

/* ---- Syringe visual ---- */
.xlml-syringe-wrap { background: var(--c-off); border: 1px solid var(--c-border); padding: 20px; margin-top: 16px; }
.xlml-syringe-label { font-family: var(--f-mono); font-size: var(--t-label); color: var(--n-800); margin-bottom: 14px; font-weight: 600; }
.xlml-syringe-row { display: flex; align-items: center; gap: 0; }
.xlml-syringe-body { position: relative; flex: 1; height: 36px; background: var(--c-light); border: 1px solid var(--c-border); overflow: hidden; }
.xlml-syringe-fill { position: absolute; top: 0; left: 0; height: 100%; background: var(--c-primary); opacity: 0.7; transition: width 0.4s cubic-bezier(0.4,0,0.2,1), background 0.3s; }
.xlml-syringe-fill.warning { background: var(--c-warn); opacity: 0.8; }
.xlml-syringe-ticks { position: absolute; inset: 0; display: flex; align-items: stretch; pointer-events: none; }
.xlml-tick { flex: 1; border-right: 1px solid var(--c-border); opacity: 0.5; }
.xlml-tick:nth-child(5n) { opacity: 1; }
.xlml-syringe-plunger { width: 20px; height: 36px; background: var(--c-light); border: 1px solid var(--c-border); border-left: none; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.xlml-syringe-needle { width: 40px; height: 2px; background: var(--c-border); flex-shrink: 0; }
.xlml-bar-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; }
.xlml-bar-meta span { font-family: var(--f-mono); font-size: var(--t-label); color: var(--n-500); }
.xlml-bar-meta .fill-pct { font-size: var(--t-label); font-weight: 700; }
.xlml-bar-meta .fill-pct.ok { color: var(--c-primary); }
.xlml-bar-meta .fill-pct.warn { color: var(--c-warn); }
.xlml-capacity-bar-wrap { margin-top: 10px; }
.xlml-capacity-track { height: 4px; background: var(--c-border); position: relative; overflow: hidden; }
.xlml-capacity-fill { position: absolute; top: 0; left: 0; height: 100%; background: var(--c-primary); transition: width 0.4s cubic-bezier(0.4,0,0.2,1), background 0.3s; }
.xlml-capacity-fill.warning { background: var(--c-warn); }

/* ---- Warning banner (amber is reserved for research-use / warning notices) ---- */
.xlml-warning-banner { background: var(--s-warn-bg); border: 1px solid var(--c-warn); padding: 14px 16px; display: flex; gap: 12px; align-items: flex-start; margin-top: 16px; }
.xlml-warning-banner svg { flex-shrink: 0; color: var(--c-warn); margin-top: 2px; }
.xlml-warning-banner .wb-title { font-family: var(--f-mono); font-size: var(--t-label); font-weight: 700; color: var(--s-warn-text); margin-bottom: 4px; }
.xlml-warning-banner p { font-size: var(--t-small); color: var(--s-warn-text); margin: 0; line-height: var(--lh-small); }

/* ---- Summary ---- */
.xlml-summary { background: var(--c-off); border: 1px solid var(--c-border); padding: 18px; position: relative; margin-top: 16px; }
.xlml-summary-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.xlml-summary-header span { font-family: var(--f-mono); font-size: var(--t-label); color: var(--c-text-dim); }
.xlml-copy-btn { background: transparent; border: 1px solid var(--c-border); color: var(--c-text-dim); padding: 4px 10px; font-family: var(--f-mono); font-size: var(--t-label); cursor: pointer; transition: border-color 0.2s, color 0.2s; }
.xlml-copy-btn:hover, .xlml-copy-btn:focus-visible { border-color: var(--c-primary); color: var(--c-primary); }
.xlml-copy-btn.is-done { border-color: var(--c-accent); color: var(--c-accent); }
.xlml-summary-text { font-size: var(--t-small); line-height: 1.7; color: var(--n-700); margin: 0; }
.xlml-summary-text .hi { color: var(--c-primary); font-weight: 700; }
.xlml-summary-warn { color: var(--s-warn-text); font-weight: 600; }

/* ---- Precision note ---- */
.xlml-precision-note { display: flex; justify-content: space-between; padding: 0 2px; }
.xlml-precision-note span {
	font-family: var(--f-mono);
	font-size: var(--t-small);
	color: var(--c-text-dim);
}

/* ---- Reconstitution reference (off-white) ---- */
.xlml-calc-ref { background: var(--c-off); border-top: 1px solid var(--c-border); padding-block: var(--sp-8); }
.xlml-ref-table { border: 1px solid var(--c-border); background: #fff; overflow-x: auto; }
.xlml-ref-table table { width: 100%; border-collapse: collapse; font-family: var(--f-mono); font-size: var(--t-small); }
.xlml-ref-table th {
	background: var(--c-dark);
	color: #fff;
	font-size: var(--t-label);
	padding: 10px 12px;
	text-align: left;
	border-bottom: 1px solid var(--c-border-dk);
	font-weight: 600;
}
.xlml-ref-table td { padding: 10px 12px; border-bottom: 1px solid var(--c-border); color: var(--n-700); }
.xlml-ref-table tr:last-child td { border-bottom: none; }
.xlml-ref-table td:last-child { color: var(--c-primary); font-weight: 700; }
.xlml-constants { list-style: none; display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0 0; padding: 0; }
.xlml-constant {
	font-family: var(--f-mono);
	font-size: var(--t-label);
	padding: 4px 10px;
	border: 1px solid var(--c-border);
	background: #fff;
	color: var(--n-700);
}

/* ---- Per-peptide presets (white) ---- */
.xlml-calc-presets { background: #fff; padding-block: var(--sp-8); }
.xlml-preset-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
.xlml-preset { display: flex; flex-direction: column; border: 1px solid var(--c-border); background: #fff; transition: border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
.xlml-preset:hover, .xlml-preset:focus-within { border-color: var(--c-primary); }
.xlml-preset.is-active { border-color: var(--c-primary); box-shadow: inset 3px 0 0 var(--c-primary); }
.xlml-preset__use {
	display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
	width: 100%; padding: 14px 16px 10px; border: 0; background: transparent;
	text-align: left; cursor: pointer; color: var(--c-dark);
}
.xlml-preset__use:focus-visible { outline: 2px solid var(--c-primary); outline-offset: -2px; }
.xlml-preset__name { font-family: var(--f-display); font-size: var(--t-body); font-weight: 600; line-height: 1.3; }
.xlml-preset__meta { font-family: var(--f-mono); font-size: var(--t-label); color: var(--n-700); }
.xlml-preset__link {
	display: block; padding: 8px 16px 12px;
	font-family: var(--f-mono); font-size: var(--t-label); font-weight: 600;
	color: var(--c-link); text-decoration: none;
}
.xlml-preset__link:hover { text-decoration: underline; }
@media (min-width: 560px) { .xlml-preset-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 900px) { .xlml-preset-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1200px) { .xlml-preset-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; } }

/* ---- Protocol notes (off-white) ---- */
.xlml-protocol { background: var(--c-off); border-top: 1px solid var(--c-border); padding-block: var(--sp-8); }
.xlml-protocol-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.xlml-protocol-block { background: #fff; border: 1px solid var(--c-border); padding: 20px; }
.xlml-protocol-block h3 { font-family: var(--f-mono); font-size: var(--t-label); font-weight: 600; color: var(--c-primary); margin: 0 0 8px; }
.xlml-protocol-block p { font-size: var(--t-small); line-height: var(--lh-small); color: var(--c-text-2); margin: 0; }
.xlml-protocol-link { margin: var(--sp-4) 0 0; font-family: var(--f-mono); font-size: var(--t-small); }
.xlml-protocol-link a { color: var(--c-link); text-decoration: none; font-weight: 600; }
.xlml-protocol-link a:hover { text-decoration: underline; }

/* ---- Disclaimer (white) ---- */
.xlml-disclaimer { background: #fff; text-align: center; padding-block: var(--sp-6) var(--sp-10); }
.xlml-disclaimer p {
	font-family: var(--f-mono);
	font-size: var(--t-small);
	color: var(--n-500);
	border-top: 1px solid var(--c-border);
	padding-top: 16px;
	margin: 0;
}
.xlml-disclaimer .warn-dot { color: var(--c-warn); }

/* ---- Utility ---- */
.xlml-hidden { display: none !important; }