/* ==========================================================================
   Atmosphere360 — course landing page
   Port of src/lib/components/CourseLanding.svelte. Loaded by every page in
   html-version/courses/.
   ========================================================================== */

.course-page {
	padding-bottom: 0;
	background: var(--paper);
}

/* ---------- hero ---------- */
.c-hero {
	padding-block: 1.5rem 0;
}

.hero-card {
	position: relative;
	display: grid;
	overflow: hidden;
	min-height: clamp(30rem, 40vw, 38rem);
	/* three columns: the copy spans two (2/3), the image takes one (1/3) */
	grid-template-columns: repeat(3, 1fr);
	border-radius: clamp(1.5rem, 3vw, 2.5rem);
	background:
		radial-gradient(
			circle at 12% 14%,
			color-mix(in srgb, var(--c-a1) 55%, transparent),
			transparent 45%
		),
		linear-gradient(140deg, color-mix(in srgb, var(--c-a1) 30%, #081826), #081826 62%);
	color: white;
}

.hero-copy {
	position: relative;
	z-index: 2;
	grid-column: span 2;
	display: flex;
	flex-direction: column;
	justify-content: center;
	gap: 1.2rem;
	padding: clamp(1.75rem, 3.5vw, 3.25rem);
}

.hero-meta {
	margin-top: 1.7rem;
	text-align: center;
}

.hero-meta-row {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: center;
	gap: 0.55rem;
}

.hero-pill {
	padding: 0.55rem 0.95rem;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: var(--surface);
	color: var(--violet);
	font-size: 0.9rem;
	font-weight: 600;
	letter-spacing: 0.02em;
}

.course-page h1 {
	margin: 0;
	max-width: 20ch;
	font-size: clamp(2.3rem, 4.1vw, 3.9rem);
	font-weight: 400;
	line-height: 1;
}

.hero-highlight {
	background: linear-gradient(100deg, #1e8fff 0%, #4fb8ff 42%, #a9e0ff 100%);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
	filter: drop-shadow(0 0 24px rgba(54, 168, 255, 0.55));
}

.hero-sub {
	max-width: 42ch;
	color: rgba(255, 255, 255, 0.72);
	font-size: 1.02rem;
	line-height: 1.6;
}

.proof-chips {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.proof-chips li {
	padding: 0.55rem 0.9rem;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: var(--surface);
	color: var(--muted);
	font-size: 0.9rem;
}

.hero-cta {
	margin-top: 0.2rem;
}

.hero-visual {
	position: relative;
	display: flex;
	align-items: flex-end;
	padding: clamp(1.5rem, 3vw, 2.5rem);
}

.hero-bg {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: 70% center;
	opacity: 0.55;
	-webkit-mask-image: linear-gradient(90deg, transparent, #000 55%);
	mask-image: linear-gradient(90deg, transparent, #000 55%);
}

/* ---------- generic section ---------- */
.c-section {
	padding-block: clamp(4.5rem, 9vw, 8rem);
}

/* tighter joint between the problem block and the curriculum below it */
.learn {
	padding-top: 3.5rem;
}

.c-head {
	max-width: 46rem;
}

.c-head.center {
	margin-inline: auto;
	text-align: center;
}

.c-head h2 {
	margin: 0.8rem 0 0;
	font-size: clamp(2.4rem, 4.4vw, 4.4rem);
	font-weight: 400;
	line-height: 0.98;
}

.c-head > p:last-child {
	max-width: 34rem;
	margin: 1.2rem 0 0;
	color: var(--muted);
	line-height: 1.65;
}

.c-head.center > p:last-child {
	margin-inline: auto;
}

/* ---------- problem ---------- */
.problem {
	padding-block: 3.5rem;
	text-align: center;
}

.problem-inner {
	max-width: 52rem;
}

.problem h2 {
	margin: 1rem 0 0;
	font-size: clamp(2.4rem, 4.6vw, 4.6rem);
	font-weight: 400;
	line-height: 1;
}

.problem p:last-child {
	max-width: 44rem;
	margin: 1.6rem auto 0;
	color: var(--muted);
	font-size: 1.08rem;
	line-height: 1.7;
}

/* ---------- modules (bento) ---------- */
.module-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	grid-auto-rows: minmax(10rem, auto);
	gap: 0.9rem;
	margin-top: 3rem;
}

.module-grid article {
	--accent: 143, 90, 231;
	position: relative;
	display: flex;
	overflow: hidden;
	flex-direction: column;
	gap: 0.6rem;
	padding: 1.6rem;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background:
		radial-gradient(120% 130% at 85% 0%, rgba(var(--accent), 0.24), transparent 60%),
		radial-gradient(120% 130% at 0% 100%, rgba(var(--accent), 0.1), transparent 58%),
		linear-gradient(165deg, #ffffff, #eef6fc);
	transition:
		transform 250ms ease,
		box-shadow 250ms ease,
		border-color 250ms ease;
}

.module-grid article:nth-child(2) {
	--accent: 213, 68, 196;
}

.module-grid article:nth-child(3) {
	--accent: 242, 122, 61;
}

.module-grid article:nth-child(4) {
	--accent: 46, 168, 255;
}

.module-grid article:nth-child(5) {
	--accent: 20, 184, 166;
}

.module-grid article:hover {
	transform: translateY(-3px);
	border-color: rgba(var(--accent), 0.5);
	box-shadow: 0 20px 45px rgba(6, 43, 68, 0.14);
}

/* Feature module — large 2×2 card */
.module-grid article:first-child {
	grid-column: span 2;
	grid-row: span 2;
	padding: 2rem;
}

/* Wide module — 2×1 card */
.module-grid article:last-child {
	grid-column: span 2;
}

.m-num {
	color: rgb(var(--accent));
	font-family: 'Instrument Serif', serif;
	font-size: 1.1rem;
}

.module-grid article:first-child .m-num {
	font-size: 1.35rem;
}

.module-grid h3 {
	margin: auto 0 0;
	font-size: 1.12rem;
	font-weight: 600;
}

.module-grid article:first-child h3 {
	max-width: 18ch;
	font-size: clamp(1.5rem, 2.4vw, 2.1rem);
	font-weight: 400;
	line-height: 1.1;
}

.module-grid p {
	margin: 0;
	color: var(--muted);
	font-size: 0.88rem;
	line-height: 1.55;
}

.module-grid article:first-child p {
	max-width: 40ch;
}

/* ---------- tracks ---------- */
.tracks {
	background: var(--surface);
	border-block: 1px solid var(--line);
}

.track-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1rem;
	max-width: 54rem;
	margin: 3rem auto 0;
}

.track-grid article {
	display: flex;
	flex-direction: column;
	gap: 1rem;
	padding: clamp(1.6rem, 3vw, 2.4rem);
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background: var(--paper);
}

.track-grid article.featured {
	border-color: transparent;
	background:
		radial-gradient(
			circle at 100% 0,
			color-mix(in srgb, var(--c-a2) 45%, transparent),
			transparent 55%
		),
		linear-gradient(140deg, color-mix(in srgb, var(--c-a1) 55%, #081826), #081826);
	color: white;
}

.track-tag {
	color: var(--muted);
	font-size: 0.66rem;
	letter-spacing: 0.14em;
	text-transform: uppercase;
}

.featured .track-tag {
	color: rgba(255, 255, 255, 0.6);
}

.track-duration {
	font-family: 'Instrument Serif', serif;
	font-size: clamp(2rem, 3.4vw, 2.9rem);
	font-weight: 400;
}

.track-grid dl {
	display: grid;
	gap: 0.7rem;
	margin: 0 0 auto;
}

.track-grid dl div {
	display: flex;
	justify-content: space-between;
	gap: 1rem;
	padding-bottom: 0.7rem;
	border-bottom: 1px solid var(--line);
}

.featured dl div {
	border-color: rgba(255, 255, 255, 0.16);
}

.track-grid dt {
	color: var(--muted);
	font-size: 0.82rem;
}

.featured dt {
	color: rgba(255, 255, 255, 0.55);
}

.track-grid dd {
	margin: 0;
	font-size: 0.86rem;
	text-align: right;
}

.track-grid .button {
	justify-content: center;
}

.emi-note {
	max-width: 46rem;
	margin: 2rem auto 0;
	color: var(--muted);
	font-size: 0.86rem;
	line-height: 1.6;
	text-align: center;
}

/* ---------- formats ---------- */
.format-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 0.9rem;
	margin-top: 3rem;
}

.format-grid article {
	padding: 1.5rem;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background: var(--surface);
}

.format-grid h3 {
	margin: 0;
	font-size: 1rem;
}

.format-grid p {
	margin: 0.7rem 0 0;
	color: var(--muted);
	font-size: 0.84rem;
	line-height: 1.6;
}

/* ---------- audience / included ---------- */
.audience-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: clamp(2rem, 6vw, 5rem);
	align-items: start;
}

.audience h2 {
	margin: 0.8rem 0 0;
	font-size: clamp(2.2rem, 4vw, 3.6rem);
	font-weight: 400;
	line-height: 1;
}

.tag-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	margin: 1.8rem 0 0;
	padding: 0;
	list-style: none;
}

.tag-list li {
	padding: 0.6rem 0.9rem;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: var(--surface);
	font-size: 0.84rem;
}

.included {
	padding: clamp(1.6rem, 3vw, 2.4rem);
	border-radius: var(--radius);
	background:
		radial-gradient(
			circle at 100% 0,
			color-mix(in srgb, var(--c-a2) 24%, transparent),
			transparent 55%
		),
		var(--surface);
	border: 1px solid var(--line);
}

.included ul {
	display: grid;
	gap: 0.9rem;
	margin: 1.4rem 0 0;
	padding: 0;
	list-style: none;
}

.included li {
	display: flex;
	gap: 0.8rem;
	align-items: center;
	font-size: 0.95rem;
}

.included li span {
	display: grid;
	width: 1.5rem;
	height: 1.5rem;
	place-items: center;
	border-radius: 50%;
	background: color-mix(in srgb, var(--c-a1) 16%, transparent);
	color: color-mix(in srgb, var(--c-a1) 80%, var(--ink));
	font-size: 0.75rem;
}

/* ---------- instructor ---------- */
.instructor-card {
	display: grid;
	grid-template-columns: auto 1fr;
	gap: clamp(1.5rem, 4vw, 3rem);
	align-items: center;
	padding: clamp(1.8rem, 4vw, 3rem);
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background: var(--surface);
}

.instructor-photo {
	display: grid;
	overflow: hidden;
	width: clamp(6rem, 12vw, 9rem);
	aspect-ratio: 1;
	place-items: center;
	border-radius: 50%;
	background:
		radial-gradient(circle at 34% 30%, white, color-mix(in srgb, var(--c-a1) 70%, #0b3b5c) 62%),
		var(--night);
	color: white;
	font-family: 'Instrument Serif', serif;
	font-size: clamp(2.4rem, 5vw, 3.6rem);
}

.instructor-photo img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.instructor h2 {
	margin: 0.6rem 0 0;
	font-size: clamp(1.8rem, 3vw, 2.6rem);
	font-weight: 400;
}

.instructor-role {
	margin: 0.3rem 0 0;
	color: var(--muted);
	font-size: 0.9rem;
}

.instructor-points {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem 1.4rem;
	margin: 1.3rem 0 0;
	padding: 0;
	list-style: none;
}

.instructor-points li {
	position: relative;
	padding-left: 1rem;
	color: var(--muted);
	font-size: 0.88rem;
}

.instructor-points li::before {
	position: absolute;
	left: 0;
	color: var(--c-a1);
	content: '•';
}

/* ---------- proof ---------- */
.proof {
	background: var(--surface);
	border-block: 1px solid var(--line);
}

.proof-numbers {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 1.5rem;
	padding-bottom: clamp(2.5rem, 5vw, 4rem);
	border-bottom: 1px solid var(--line);
	text-align: center;
}

.proof-numbers strong {
	display: block;
	font-size: clamp(2rem, 3.6vw, 3.2rem);
	font-weight: 400;
}

.proof-numbers span {
	color: var(--muted);
	font-size: 0.8rem;
}

.case-card {
	max-width: 46rem;
	margin: clamp(2.5rem, 5vw, 4rem) auto 0;
	text-align: center;
}

.case-card h3 {
	margin: 0.8rem 0 0;
	font-size: clamp(2rem, 3.6vw, 3.2rem);
	font-weight: 400;
	line-height: 1;
}

.case-card p:last-child {
	margin: 1.2rem 0 0;
	color: var(--muted);
	line-height: 1.7;
}

.quote-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 0.9rem;
	margin-top: clamp(2.5rem, 5vw, 4rem);
}

.quote-grid blockquote {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	gap: 1.4rem;
	margin: 0;
	padding: 1.6rem;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background: var(--paper);
}

.quote-grid p {
	margin: 0;
	font-size: 0.95rem;
	line-height: 1.6;
}

.quote-grid footer {
	display: flex;
	align-items: center;
	gap: 0.7rem;
}

.quote-grid footer > div {
	display: grid;
}

.quote-avatar {
	display: grid;
	width: 2.6rem;
	height: 2.6rem;
	flex: none;
	place-items: center;
	overflow: hidden;
	border-radius: 50%;
	background: linear-gradient(135deg, var(--violet), var(--magenta));
	color: white;
	font-size: 0.9rem;
	font-weight: 600;
}

.quote-avatar img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.quote-grid strong {
	font-size: 0.86rem;
}

.quote-grid span {
	color: var(--muted);
	font-size: 0.76rem;
}

.quote-grid .quote-avatar {
	color: white;
}

.logo-strip {
	display: flex;
	align-items: center;
	justify-content: center;
	flex-wrap: wrap;
	gap: 1.5rem;
	margin-top: clamp(2.5rem, 5vw, 4rem);
	color: var(--muted);
	font-size: 0.66rem;
	letter-spacing: 0.14em;
	text-transform: uppercase;
}

.logo-boxes {
	display: flex;
	gap: 0.6rem;
}

.logo-boxes i {
	width: 4.5rem;
	height: 2.2rem;
	border: 1px solid var(--line);
	border-radius: 0.5rem;
	background: var(--paper);
}

/* ---------- FAQ ---------- */
.faq-grid {
	display: grid;
	grid-template-columns: 0.8fr 1.2fr;
	gap: clamp(2rem, 6vw, 6rem);
}

.faq h2 {
	margin: 0.8rem 0 0;
	font-size: clamp(2.2rem, 4vw, 3.6rem);
	font-weight: 400;
	line-height: 1;
}

.faq-help {
	margin: 1.2rem 0 0;
	color: var(--muted);
	font-size: 0.9rem;
	line-height: 1.6;
}

.course-page .faq-list {
	border-top: 1px solid var(--line);
}

.course-page .faq-list details {
	border-bottom: 1px solid var(--line);
}

.course-page .faq-list summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	padding: 1.4rem 0;
	font-weight: 500;
	list-style: none;
	cursor: pointer;
}

.course-page .faq-list summary::-webkit-details-marker {
	display: none;
}

.course-page .faq-list summary i {
	display: grid;
	width: 1.9rem;
	height: 1.9rem;
	flex: none;
	place-items: center;
	border: 1px solid var(--line);
	border-radius: 50%;
	font-style: normal;
	transition: transform 180ms ease;
}

.course-page .faq-list details[open] summary i {
	background: var(--night);
	color: white;
	transform: rotate(45deg);
}

.course-page .faq-list details p {
	margin: 0;
	padding: 0 2.8rem 1.4rem 0;
	color: var(--muted);
	line-height: 1.65;
}

/* ---------- final CTA ---------- */
.final-card {
	display: grid;
	justify-items: center;
	gap: 1.3rem;
	padding: clamp(2.5rem, 6vw, 5rem) clamp(1.5rem, 5vw, 4rem);
	border-radius: clamp(1.5rem, 3vw, 2.5rem);
	background:
		radial-gradient(
			circle at 20% 0,
			color-mix(in srgb, var(--c-a1) 55%, transparent),
			transparent 45%
		),
		radial-gradient(
			circle at 90% 100%,
			color-mix(in srgb, var(--c-a2) 45%, transparent),
			transparent 45%
		),
		var(--night);
	color: white;
	text-align: center;
}

.final-card h2 {
	max-width: 22ch;
	margin: 0;
	font-size: clamp(2.4rem, 4.6vw, 4.4rem);
	font-weight: 400;
	line-height: 1;
}

.final-note {
	color: rgba(255, 255, 255, 0.66);
	font-size: 0.9rem;
}

.urgency {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	color: rgba(255, 255, 255, 0.72);
	font-size: 0.78rem;
}

.urgency span {
	color: var(--c-a2);
}

/* ---------- demo modal ---------- */
.demo-dialog {
	width: min(100% - 1.2rem, 54rem);
	margin: auto;
	padding: 0;
	border: 0;
	border-radius: 1.6rem;
	background: transparent;
	box-shadow: 0 40px 120px rgba(6, 43, 68, 0.35);
}

.demo-dialog::backdrop {
	background: rgba(6, 43, 68, 0.68);
	backdrop-filter: blur(10px);
}

.demo-modal {
	position: relative;
	display: grid;
	overflow: hidden;
	grid-template-columns: 0.85fr 1fr;
	border: 1px solid rgba(255, 255, 255, 0.8);
	border-radius: inherit;
	background: var(--surface);
}

.demo-aside {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	gap: 2rem;
	padding: clamp(1.8rem, 4vw, 2.6rem);
	background:
		radial-gradient(circle at 85% 0, rgba(89, 178, 234, 0.55), transparent 55%),
		linear-gradient(160deg, #08324e, #1f7cba);
	color: white;
}

.demo-aside .eyebrow {
	color: rgba(255, 255, 255, 0.7);
}

.demo-aside h3 {
	margin: 0.8rem 0 0;
	font-size: clamp(1.6rem, 3vw, 2.1rem);
	font-weight: 400;
	line-height: 1.05;
}

.demo-aside p:last-child {
	margin: 0.8rem 0 0;
	color: rgba(255, 255, 255, 0.74);
	font-size: 0.9rem;
	line-height: 1.6;
}

.demo-body {
	position: relative;
	padding: clamp(1.8rem, 4vw, 2.8rem);
}

.demo-close {
	position: absolute;
	top: 1rem;
	right: 1rem;
	display: grid;
	width: 2.3rem;
	height: 2.3rem;
	place-items: center;
	border: 1px solid var(--line);
	border-radius: 50%;
	background: var(--paper);
	font-size: 1.2rem;
	line-height: 1;
	cursor: pointer;
}

.demo-modal h2 {
	margin: 0.5rem 0 0;
	font-size: clamp(1.7rem, 4vw, 2.3rem);
	font-weight: 400;
	line-height: 1.05;
}

.demo-lead {
	margin: 0.8rem 0 1.4rem;
	color: var(--muted);
	font-size: 0.92rem;
	line-height: 1.6;
}

.demo-modal form {
	display: grid;
	gap: 1rem;
}

.demo-modal label {
	display: grid;
	gap: 0.4rem;
	font-size: 0.8rem;
}

.demo-modal input[type='email'],
.demo-modal input[type='tel'] {
	padding: 0.8rem 0.9rem;
	border: 1px solid var(--line);
	border-radius: 0.8rem;
	background: var(--paper);
	font-size: 0.95rem;
}

.demo-modal .check {
	display: grid;
	grid-template-columns: auto 1fr;
	align-items: start;
	gap: 0.6rem;
	color: var(--muted);
	font-size: 0.78rem;
	line-height: 1.5;
}

.google-btn {
	display: flex;
	width: 100%;
	align-items: center;
	justify-content: center;
	gap: 0.7rem;
	padding: 0.85rem;
	border: 1px solid var(--line);
	border-radius: 0.9rem;
	background: white;
	font-size: 0.92rem;
	font-weight: 500;
	cursor: pointer;
}

.google-btn span {
	display: grid;
	width: 1.4rem;
	height: 1.4rem;
	place-items: center;
	border-radius: 50%;
	background: conic-gradient(#ea4335, #fbbc05, #34a853, #4285f4, #ea4335);
	color: white;
	font-size: 0.7rem;
	font-weight: 700;
}

.demo-or {
	display: flex;
	align-items: center;
	gap: 0.8rem;
	margin: 1.1rem 0;
	color: var(--muted);
	font-size: 0.72rem;
}

.demo-or::before,
.demo-or::after {
	flex: 1;
	height: 1px;
	background: var(--line);
	content: '';
}

.demo-submit {
	justify-content: center;
}

.demo-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
}

.honeypot {
	position: absolute;
	left: -9999px;
	width: 1px;
	height: 1px;
	opacity: 0;
}

.demo-note,
.demo-error {
	margin: 0.7rem 0 0;
	font-size: 0.78rem;
	line-height: 1.5;
}

.demo-note {
	color: var(--muted);
}

.demo-error {
	color: #c0392b;
}

.demo-consent {
	margin: 1rem 0 0;
	color: var(--muted);
	font-size: 0.7rem;
	line-height: 1.5;
}

.demo-consent a {
	text-decoration: underline;
}

/* ---------- responsive ---------- */
@media (max-width: 950px) {
	.module-grid,
	.format-grid {
		grid-template-columns: 1fr 1fr;
	}

	.module-grid article:first-child {
		grid-column: span 2;
		grid-row: auto;
	}

	.module-grid article:last-child {
		grid-column: auto;
	}

	.quote-grid {
		grid-template-columns: 1fr;
	}

	.proof-numbers {
		grid-template-columns: 1fr 1fr;
		gap: 2rem;
	}

	.audience-grid,
	.faq-grid {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 800px) {
	.hero-card {
		grid-template-columns: 1fr;
	}

	.hero-copy {
		grid-column: auto;
	}

	.hero-visual {
		min-height: 18rem;
	}

	.hero-bg {
		-webkit-mask-image: linear-gradient(180deg, transparent, #000 55%);
		mask-image: linear-gradient(180deg, transparent, #000 55%);
	}

	.demo-modal {
		grid-template-columns: 1fr;
	}

	.demo-aside {
		display: none;
	}
}

@media (max-width: 560px) {
	.module-grid,
	.format-grid,
	.track-grid {
		grid-template-columns: 1fr;
	}

	.module-grid article:first-child,
	.module-grid article:last-child {
		grid-column: auto;
		grid-row: auto;
	}

	.module-grid article:first-child h3 {
		font-size: 1.5rem;
	}

	.instructor-card {
		grid-template-columns: 1fr;
		justify-items: center;
		text-align: center;
	}

	.instructor-points {
		justify-content: center;
	}
}