/* =========================================================================
   N.A. Diagnostics — main theme styles
   Patriotic navy / red / white. Mobile-first.
   ========================================================================= */

:root {
	--nad-navy: #0b2545;
	--nad-navy-2: #102a4c;
	--nad-navy-deep: #081a33;
	--nad-red: #b11226;
	--nad-red-2: #c0202e;
	--nad-white: #ffffff;
	--nad-steel: #e7ecf3;
	--nad-steel-2: #f4f7fb;
	--nad-ink: #102a4c;
	--nad-muted: #5b6b82;
	--nad-line: #d8e0ec;
	--nad-pass: #1a7f37;
	--nad-radius: 12px;
	--nad-shadow: 0 10px 30px rgba(11, 37, 69, 0.12);
	--nad-maxw: 1120px;
	--nad-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
	font-family: var(--nad-font);
	color: var(--nad-ink);
	background: var(--nad-white);
	/* Sticky footer: keep the footer at the bottom on short pages. */
	display: flex;
	flex-direction: column;
	min-height: 100vh;
}
.nad-main { flex: 1 0 auto; }
.nad-site-footer { flex-shrink: 0; }

.nad-container {
	width: 100%;
	max-width: var(--nad-maxw);
	margin: 0 auto;
	padding: 0 20px;
}

h1, h2, h3 { line-height: 1.2; color: var(--nad-navy); margin: 0 0 0.5em; }
p { margin: 0 0 1em; }

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

img { display: block; }

.screen-reader-text {
	position: absolute !important;
	width: 1px; height: 1px;
	overflow: hidden; clip: rect(1px,1px,1px,1px);
	white-space: nowrap;
}

.nad-skip-link {
	position: absolute; left: -9999px; top: 0;
	background: var(--nad-navy); color: #fff; padding: 10px 16px; z-index: 1000;
}
.nad-skip-link:focus { left: 8px; top: 8px; }

/* ---- Buttons ---- */
.nad-btn {
	display: inline-block;
	padding: 13px 24px;
	border-radius: 8px;
	font-weight: 700;
	font-size: 15px;
	line-height: 1;
	border: 2px solid transparent;
	cursor: pointer;
	transition: transform .08s ease, background .15s ease, color .15s ease;
	text-decoration: none;
}
.nad-btn:hover { text-decoration: none; transform: translateY(-1px); }
.nad-btn-red { background: var(--nad-red); color: #fff; }
.nad-btn-red:hover { background: var(--nad-red-2); color: #fff; }
.nad-btn-navy { background: var(--nad-navy); color: #fff; }
.nad-btn-navy:hover { background: var(--nad-navy-2); color: #fff; }
.nad-btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.nad-btn-ghost:hover { background: rgba(255,255,255,0.1); color: #fff; }
.nad-btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.nad-btn-outline:hover { background: #fff; color: var(--nad-navy); }

/* =========================================================================
   Header
   ========================================================================= */
.nad-site-header {
	position: sticky; top: 0; z-index: 100;
	background: var(--nad-navy);
	border-bottom: 3px solid var(--nad-red);
}
.nad-header-inner {
	display: flex; align-items: center; justify-content: space-between;
	min-height: 72px; gap: 16px;
}
.nad-branding { display: flex; align-items: center; gap: 12px; }
.nad-branding img,
.nad-branding .custom-logo { height: 48px; width: auto; }
.nad-site-name { color: #fff; font-weight: 800; letter-spacing: .02em; font-size: 18px; }
.nad-logo-text { color: #fff; font-weight: 800; letter-spacing: .02em; font-size: 18px; text-decoration: none; }
.nad-logo-text:hover { color: #fff; text-decoration: none; }
.nad-footer-brand .nad-logo-text { font-size: 20px; display: inline-block; margin-bottom: 12px; }

.nad-primary-nav { display: flex; align-items: center; gap: 22px; }
.nad-menu {
	display: flex; align-items: center; gap: 22px;
	list-style: none; margin: 0; padding: 0;
}
.nad-menu a {
	color: #dbe4f1; font-weight: 600; font-size: 15px;
}
.nad-menu a:hover { color: #fff; text-decoration: none; }
.nad-menu .current-menu-item > a { color: #fff; }
.nad-nav-cta { padding: 10px 18px; font-size: 14px; }

.nad-nav-toggle {
	display: none; width: 44px; height: 44px;
	background: transparent; border: 0; cursor: pointer; position: relative;
}
.nad-nav-toggle-bar,
.nad-nav-toggle-bar::before,
.nad-nav-toggle-bar::after {
	content: ""; position: absolute; left: 10px; right: 10px; height: 2px;
	background: #fff; transition: transform .2s ease, opacity .2s ease;
}
.nad-nav-toggle-bar { top: 21px; }
.nad-nav-toggle-bar::before { top: -7px; }
.nad-nav-toggle-bar::after { top: 7px; }
.nad-nav-toggle.is-active .nad-nav-toggle-bar { background: transparent; }
.nad-nav-toggle.is-active .nad-nav-toggle-bar::before { transform: translateY(7px) rotate(45deg); }
.nad-nav-toggle.is-active .nad-nav-toggle-bar::after { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================================
   Hero
   ========================================================================= */
.nad-hero {
	background:
		radial-gradient(1200px 500px at 80% -10%, rgba(192,32,46,0.22), transparent 60%),
		linear-gradient(180deg, var(--nad-navy) 0%, var(--nad-navy-deep) 100%);
	color: #fff;
	padding: 72px 0 80px;
	position: relative;
	overflow: hidden;
}
.nad-hero::after {
	/* subtle flag-stripe motif */
	content: ""; position: absolute; inset: 0; pointer-events: none;
	background: repeating-linear-gradient(180deg, rgba(255,255,255,0.04) 0 2px, transparent 2px 26px);
	opacity: .5;
}
.nad-hero-inner {
	position: relative; z-index: 1;
	display: grid; grid-template-columns: 1.3fr .7fr; gap: 40px; align-items: center;
}
.nad-hero-eyebrow {
	text-transform: uppercase; letter-spacing: .18em; font-size: 13px; font-weight: 700;
	color: #9fc1ff; margin-bottom: 12px;
}
.nad-hero-title { color: #fff; font-size: clamp(32px, 5vw, 52px); font-weight: 800; margin-bottom: 16px; }
.nad-hero-sub { color: #c8d6ea; font-size: 18px; max-width: 560px; margin-bottom: 28px; }
.nad-hero-art { text-align: center; }
.nad-hero-art img { margin: 0 auto; max-width: 320px; filter: drop-shadow(0 16px 40px rgba(0,0,0,.4)); }
.nad-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }

/* trust bar */
.nad-trustbar {
	position: relative; z-index: 1;
	margin-top: 56px; border-top: 1px solid rgba(255,255,255,0.12);
}
.nad-trustbar-inner {
	display: flex; flex-wrap: wrap; gap: 14px 36px; justify-content: center;
	padding: 20px 20px 0;
}
.nad-trustbar span {
	color: #9fc1ff; font-weight: 700; font-size: 14px; letter-spacing: .04em;
	text-transform: uppercase; position: relative; padding-left: 22px;
}
.nad-trustbar span::before {
	content: ""; position: absolute; left: 0; top: 50%; width: 12px; height: 12px;
	transform: translateY(-50%) rotate(45deg); background: var(--nad-red); border-radius: 2px;
}

/* =========================================================================
   Feature / about
   ========================================================================= */
.nad-feature { padding: 80px 0; background: #fff; }
.nad-feature-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.nad-feature-visual { text-align: center; }
.nad-feature-visual svg { max-width: 100%; height: auto; }
.nad-feature-copy .nad-section-eyebrow { text-align: left; }
.nad-feature-copy p { color: var(--nad-muted); font-size: 17px; }
.nad-feature-points { display: grid; gap: 22px; margin-top: 28px; }
.nad-fp { display: flex; gap: 16px; align-items: flex-start; }
.nad-fp-icon {
	flex-shrink: 0; width: 48px; height: 48px; border-radius: 10px;
	display: inline-flex; align-items: center; justify-content: center;
	background: var(--nad-steel); color: var(--nad-navy);
}
.nad-fp h3 { font-size: 18px; margin: 0 0 4px; }
.nad-fp p { margin: 0; font-size: 15px; }

/* =========================================================================
   Integrity band (dark)
   ========================================================================= */
.nad-band {
	background:
		linear-gradient(115deg, var(--nad-navy-deep) 0%, var(--nad-navy) 55%, rgba(177,18,38,0.55) 140%);
	color: #fff; padding: 84px 0; position: relative; overflow: hidden;
}
.nad-band::after {
	content: ""; position: absolute; inset: 0; pointer-events: none;
	background: repeating-linear-gradient(180deg, rgba(255,255,255,0.04) 0 2px, transparent 2px 26px);
	opacity: .5;
}
.nad-band-inner { position: relative; z-index: 1; max-width: 680px; }
.nad-on-dark-text { color: #c8d6ea; font-size: 18px; margin-bottom: 26px; }

/* =========================================================================
   Why us
   ========================================================================= */
.nad-why { padding: 80px 0; background: var(--nad-steel-2); }
.nad-why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.nad-why-card {
	background: #fff; border: 1px solid var(--nad-line); border-radius: var(--nad-radius);
	padding: 30px 24px; box-shadow: var(--nad-shadow);
}
.nad-why-icon {
	display: inline-flex; align-items: center; justify-content: center;
	width: 54px; height: 54px; border-radius: 12px; margin-bottom: 16px;
	background: var(--nad-navy); color: #fff;
}
.nad-why-card h3 { font-size: 19px; margin-bottom: 8px; }
.nad-why-card p { color: var(--nad-muted); margin: 0; font-size: 15px; }

/* =========================================================================
   Verify widget
   ========================================================================= */
.nad-verify { max-width: 640px; }
.nad-verify-form { display: flex; gap: 10px; }
.nad-verify-input {
	flex: 1; min-width: 0;
	padding: 15px 18px; font-size: 16px;
	border: 2px solid transparent; border-radius: 8px;
	background: #fff; color: var(--nad-ink);
	text-transform: uppercase;
}
.nad-verify-input:focus { outline: 3px solid var(--nad-red-2); outline-offset: 1px; }
.nad-verify-submit { white-space: nowrap; }
.nad-verify-form.is-loading .nad-verify-submit { opacity: .6; pointer-events: none; }

.nad-verify-result { margin-top: 22px; }
.nad-coa-loading {
	color: #c8d6ea; font-weight: 600; padding: 10px 0;
}

/* On the dark hero, the empty/no-match text needs light color */
.nad-hero .nad-coa-empty h3 { color: #fff; }
.nad-hero .nad-coa-empty p { color: #c8d6ea; }

/* =========================================================================
   COA card
   ========================================================================= */
.nad-coa-card {
	background: #fff; color: var(--nad-ink);
	border: 1px solid var(--nad-line);
	border-radius: var(--nad-radius);
	box-shadow: var(--nad-shadow);
	padding: 26px;
	text-align: left;
}
.nad-coa-card + .nad-coa-card { margin-top: 24px; }
.nad-coa-card-head {
	display: flex; justify-content: space-between; align-items: flex-start; gap: 16px;
	border-bottom: 1px solid var(--nad-line); padding-bottom: 16px; margin-bottom: 18px;
}
.nad-coa-eyebrow {
	text-transform: uppercase; letter-spacing: .14em; font-size: 12px; font-weight: 700;
	color: var(--nad-muted); margin: 0 0 4px;
}
.nad-coa-product { font-size: 24px; margin: 0; color: var(--nad-navy); }

.nad-badge {
	display: inline-block; padding: 8px 16px; border-radius: 999px;
	font-weight: 800; letter-spacing: .08em; font-size: 14px; color: #fff;
	flex-shrink: 0;
}
.nad-badge-pass { background: var(--nad-pass); }
.nad-badge-fail { background: var(--nad-red); }

.nad-coa-grid {
	display: grid; grid-template-columns: 1fr 1fr; gap: 14px 28px; margin: 0;
}
.nad-coa-row { margin: 0; }
.nad-coa-row dt { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--nad-muted); margin-bottom: 2px; }
.nad-coa-row dd { margin: 0; font-size: 17px; font-weight: 600; color: var(--nad-navy); }

.nad-coa-notes {
	margin: 18px 0 0; padding: 14px 16px; background: var(--nad-steel-2);
	border-left: 3px solid var(--nad-navy); border-radius: 6px; color: var(--nad-muted);
}
.nad-coa-chromatogram { margin: 18px 0 0; }
.nad-coa-chromatogram img { width: 100%; border: 1px solid var(--nad-line); border-radius: 8px; }

.nad-coa-card-foot {
	display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
	margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--nad-line);
}
.nad-coa-permalink { font-size: 14px; color: var(--nad-muted); }

.nad-coa-empty {
	background: rgba(255,255,255,0.06);
	border: 1px dashed rgba(255,255,255,0.3);
	border-radius: var(--nad-radius);
	padding: 22px 24px;
}
/* Solid version when used outside the hero (verify page) */
.nad-verify-page .nad-coa-empty,
.nad-single-coa .nad-coa-empty {
	background: var(--nad-steel-2);
	border: 1px dashed var(--nad-line);
}
.nad-verify-page .nad-coa-empty h3 { color: var(--nad-navy); }

/* =========================================================================
   Stats
   ========================================================================= */
.nad-stats { background: var(--nad-white); padding: 48px 0; border-bottom: 1px solid var(--nad-line); }
.nad-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.nad-stat-num { font-size: clamp(34px, 5vw, 52px); font-weight: 800; color: var(--nad-red); line-height: 1; }
.nad-stat-label { margin-top: 8px; color: var(--nad-muted); font-weight: 600; font-size: 14px; }

/* =========================================================================
   Steps
   ========================================================================= */
.nad-steps { padding: 72px 0; background: var(--nad-steel-2); }
.nad-section-eyebrow {
	text-align: center; text-transform: uppercase; letter-spacing: .16em;
	font-size: 13px; font-weight: 700; color: var(--nad-red); margin: 0 0 8px;
}
.nad-section-eyebrow.nad-on-dark { color: #7fb0ff; text-align: left; }
.nad-section-title { text-align: center; font-size: clamp(26px, 3.5vw, 36px); margin-bottom: 40px; }
.nad-section-title.nad-left { text-align: left; margin-bottom: 18px; }
.nad-on-dark { color: #fff !important; }
.nad-steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.nad-step {
	background: #fff; border: 1px solid var(--nad-line); border-radius: var(--nad-radius);
	padding: 32px 26px; box-shadow: var(--nad-shadow);
}
.nad-step-num {
	display: inline-flex; align-items: center; justify-content: center;
	width: 46px; height: 46px; border-radius: 10px;
	background: var(--nad-navy); color: #fff; font-weight: 800; font-size: 20px; margin-bottom: 16px;
}
.nad-step h3 { font-size: 20px; margin-bottom: 8px; }
.nad-step p { color: var(--nad-muted); margin: 0; }

/* =========================================================================
   Freeform / CTA
   ========================================================================= */
.nad-freeform { padding: 56px 0; }
.nad-cta {
	background: linear-gradient(180deg, var(--nad-navy) 0%, var(--nad-navy-deep) 100%);
	color: #fff; text-align: center; padding: 72px 0;
}
.nad-cta h2 { color: #fff; font-size: clamp(26px, 3.5vw, 38px); }
.nad-cta p { color: #c8d6ea; max-width: 600px; margin: 0 auto 28px; font-size: 18px; }

/* =========================================================================
   Pages
   ========================================================================= */
.nad-page { padding: 56px 0; }
.nad-page-header { margin-bottom: 28px; }
.nad-page-title { font-size: clamp(28px, 4vw, 42px); }
.nad-page-content { font-size: 17px; max-width: 820px; margin-left: auto; margin-right: auto; }
.nad-prose { max-width: 820px; margin-left: auto; margin-right: auto; }
.nad-page-content h2 { margin-top: 1.4em; }
.nad-page-content img { border-radius: 8px; }

.nad-verify-page { padding: 56px 0 72px; }
.nad-verify-head { text-align: center; margin-bottom: 32px; }
.nad-verify-intro { color: var(--nad-muted); max-width: 620px; margin: 0 auto; font-size: 18px; }
.nad-verify-page .nad-verify { margin: 0 auto; }
.nad-verify-page .nad-verify-input { border-color: var(--nad-line); }
.nad-verify-extra { margin: 40px auto 0; }

.nad-single-coa { padding: 48px 0 72px; }
.nad-single-coa-inner { max-width: 760px; margin: 0 auto; }
.nad-breadcrumb { margin-bottom: 18px; }

.nad-404 { text-align: center; padding: 80px 0; }

/* =========================================================================
   Forms (contact)
   ========================================================================= */
.nad-contact-form { max-width: 620px; }
.nad-field { margin-bottom: 18px; }
.nad-field label { display: block; font-weight: 600; margin-bottom: 6px; }
.nad-field input[type=text],
.nad-field input[type=email],
.nad-field textarea {
	width: 100%; padding: 12px 14px; font-size: 16px;
	border: 1px solid var(--nad-line); border-radius: 8px; font-family: inherit;
}
.nad-field input:focus,
.nad-field textarea:focus { outline: 2px solid var(--nad-navy); border-color: var(--nad-navy); }
.nad-hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }

.nad-form-notice { padding: 14px 16px; border-radius: 8px; margin-bottom: 20px; font-weight: 600; }
.nad-form-ok { background: #e6f4ea; color: var(--nad-pass); border: 1px solid #b6e0c2; }
.nad-form-err { background: #fdecee; color: var(--nad-red); border: 1px solid #f3c2c8; }

/* =========================================================================
   Footer
   ========================================================================= */
.nad-site-footer { background: var(--nad-navy-deep); color: #c8d6ea; }
.nad-footer-inner {
	display: grid; grid-template-columns: 1.5fr 1fr 1.6fr; gap: 40px;
	padding: 56px 20px;
}
.nad-footer-brand img { height: 56px; width: auto; margin-bottom: 14px; }
.nad-footer-tag { color: #98abc6; max-width: 340px; margin: 0 0 14px; }
.nad-footer-email { margin: 0; color: #98abc6; }
.nad-footer-email strong { color: #c8d6ea; }
.nad-footer-email a { color: #fff; font-weight: 600; }
.nad-footer-heading {
	color: #fff; font-size: 16px; text-transform: uppercase; letter-spacing: .08em;
	margin: 0 0 16px;
}
.nad-footer-menu { list-style: none; margin: 0; padding: 0; }
.nad-footer-menu li { margin-bottom: 10px; }
.nad-footer-menu a { color: #c8d6ea; }
.nad-footer-menu a:hover { color: #fff; }
.nad-footer-info p { color: #98abc6; font-size: 14px; line-height: 1.6; margin: 0 0 14px; }
.nad-footer-info strong { color: #c8d6ea; }
.nad-footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); }
.nad-footer-bottom p { margin: 0; padding: 18px 0; font-size: 14px; color: #8aa0bd; }

/* =========================================================================
   Blog list (fallback)
   ========================================================================= */
.nad-post-list { display: grid; gap: 22px; max-width: 760px; }
.nad-post-card { border-bottom: 1px solid var(--nad-line); padding-bottom: 20px; }
.nad-post-title { font-size: 22px; margin: 0 0 8px; }

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 860px) {
	.nad-nav-toggle { display: block; }
	.nad-primary-nav {
		position: absolute; top: 100%; left: 0; right: 0;
		flex-direction: column; align-items: stretch; gap: 0;
		background: var(--nad-navy); border-bottom: 3px solid var(--nad-red);
		padding: 8px 20px 20px;
		display: none;
	}
	.nad-primary-nav.is-open { display: flex; }
	.nad-menu { flex-direction: column; align-items: stretch; gap: 0; width: 100%; }
	.nad-menu li { border-bottom: 1px solid rgba(255,255,255,0.08); }
	.nad-menu a { display: block; padding: 14px 0; }
	.nad-nav-cta { margin-top: 14px; text-align: center; }

	.nad-hero-inner { grid-template-columns: 1fr; }
	.nad-hero-art { display: none; }

	.nad-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
	.nad-steps-grid { grid-template-columns: 1fr; }

	.nad-feature-inner { grid-template-columns: 1fr; gap: 32px; }
	.nad-feature-visual { order: 2; }
	.nad-feature-visual svg { max-width: 320px; }
	.nad-why-grid { grid-template-columns: repeat(2, 1fr); }

	.nad-footer-inner { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 560px) {
	.nad-verify-form { flex-direction: column; }
	.nad-verify-submit { width: 100%; }
	.nad-coa-grid { grid-template-columns: 1fr; }
	.nad-coa-card-head { flex-direction: column; }
	.nad-why-grid { grid-template-columns: 1fr; }
	.nad-trustbar-inner { gap: 12px 24px; }
}