/* ==========================================================================
   TDL — Tile Design Lab
   Core styling. Dark navy configurator UI (per Process_1-3 + Home mockups)
   with white commerce sections (Our Collections, footer) and a blue accent.
   ========================================================================== */

:root {
	--tdl-navy-900: #0a1628;
	--tdl-navy-800: #0f1f38;
	--tdl-navy-700: #16294a;
	--tdl-navy-600: #1d3358;
	--tdl-blue-500: #2f6fed;
	--tdl-blue-400: #4c8bff;
	--tdl-blue-100: #e7effe;
	--tdl-white: #ffffff;
	--tdl-off-white: #f6f8fc;
	--tdl-grey-300: #9aa7c2;
	--tdl-grey-500: #6b7891;
	--tdl-success: #2ecc71;
	--tdl-radius: 14px;
	--tdl-radius-sm: 8px;
	--tdl-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	--tdl-max-width: 1280px;
}

* { box-sizing: border-box; }

body {
	font-family: var(--tdl-font);
	background: var(--tdl-off-white);
	color: var(--tdl-navy-900);
	margin: 0;
	line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.tdl-accent { color: var(--tdl-blue-500); }

/* ---------------------------------------------------------------- */
/* Announcement bar + header                                        */
/* ---------------------------------------------------------------- */
.tdl-announcement-bar {
	background: var(--tdl-blue-500);
	color: var(--tdl-white);
	text-align: center;
	font-size: 0.8rem;
	padding: 6px;
	letter-spacing: 0.02em;
}

.tdl-header {
	background: var(--tdl-navy-900);
	position: sticky;
	top: 0;
	z-index: 100;
}
.tdl-header__inner {
	max-width: var(--tdl-max-width);
	margin: 0 auto;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 14px 24px;
}
.tdl-logo { display: flex; gap: 2px; font-weight: 800; font-size: 1.1rem; color: var(--tdl-white); }
.tdl-logo span { border: 1px solid var(--tdl-grey-300); padding: 2px 6px; border-radius: 4px; }
.tdl-primary-nav ul { display: flex; gap: 22px; list-style: none; margin: 0; padding: 0; }
.tdl-primary-nav a { color: var(--tdl-grey-300); font-size: 0.9rem; text-transform: capitalize; }
.tdl-primary-nav a:hover { color: var(--tdl-white); }
.tdl-header__actions { display: flex; align-items: center; gap: 16px; }
.tdl-icon-link { color: var(--tdl-white); position: relative; }
.tdl-cart-count { position: absolute; top: -8px; right: -10px; background: var(--tdl-blue-500); border-radius: 50%; font-size: 0.65rem; padding: 1px 5px; }

/* ---------------------------------------------------------------- */
/* Buttons                                                           */
/* ---------------------------------------------------------------- */
.tdl-btn {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 12px 22px;
	border-radius: 999px;
	font-weight: 600;
	font-size: 0.95rem;
	border: none;
	cursor: pointer;
	transition: transform 0.15s ease, background 0.15s ease;
}
.tdl-btn:hover { transform: translateY(-1px); }
.tdl-btn--primary { background: var(--tdl-blue-500); color: var(--tdl-white); }
.tdl-btn--primary:hover { background: var(--tdl-blue-400); }
.tdl-btn--outline { background: transparent; color: var(--tdl-white); border: 1px solid var(--tdl-grey-300); }
.tdl-btn--small { padding: 8px 16px; font-size: 0.82rem; }
.tdl-btn--large { padding: 16px 32px; font-size: 1.05rem; }
.tdl-btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ---------------------------------------------------------------- */
/* Homepage hero + journeys                                          */
/* ---------------------------------------------------------------- */
.tdl-hero {
	background: linear-gradient(180deg, var(--tdl-navy-900), var(--tdl-navy-800));
	color: var(--tdl-white);
	padding: 90px 24px;
	text-align: center;
}
.tdl-hero__engine-tag {
	display: inline-block;
	background: rgba(255,255,255,0.08);
	border: 1px solid rgba(255,255,255,0.2);
	border-radius: 999px;
	padding: 4px 14px;
	font-size: 0.75rem;
	margin-bottom: 18px;
	color: var(--tdl-grey-300);
}
.tdl-hero h1 { font-size: 2.6rem; max-width: 780px; margin: 0 auto 14px; }
.tdl-hero p { color: var(--tdl-grey-300); margin-bottom: 28px; }
.tdl-hero__ctas { display: flex; gap: 16px; justify-content: center; }

.tdl-journeys { max-width: var(--tdl-max-width); margin: 0 auto; padding: 70px 24px; text-align: center; }
.tdl-journeys h2 { font-size: 2rem; margin-bottom: 6px; }
.tdl-journeys__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 40px 0; }
.tdl-journey-card {
	border-radius: var(--tdl-radius);
	overflow: hidden;
	position: relative;
	aspect-ratio: 4/3;
	background: var(--tdl-navy-700);
	color: var(--tdl-white);
}
.tdl-journey-card img { width: 100%; height: 100%; object-fit: cover; }
.tdl-journey-card h3 {
	position: absolute; bottom: 16px; left: 16px; margin: 0;
	background: rgba(10,22,40,0.65); padding: 6px 14px; border-radius: 8px;
}
.tdl-trust-strip { display: flex; justify-content: center; gap: 32px; list-style: none; padding: 0; color: var(--tdl-grey-500); font-size: 0.85rem; }

.tdl-featured-patterns { max-width: var(--tdl-max-width); margin: 0 auto 60px; padding: 0 24px; }
.tdl-featured-patterns__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tdl-featured-card { border-radius: var(--tdl-radius-sm); overflow: hidden; text-align: center; }
.tdl-featured-card span { display: block; margin-top: 8px; font-weight: 600; }
.tdl-featured-card em { color: var(--tdl-blue-500); font-style: normal; font-size: 0.85rem; }

.tdl-style-ticker { background: var(--tdl-navy-900); overflow: hidden; padding: 14px 0; }
.tdl-style-ticker__track { display: flex; gap: 40px; white-space: nowrap; color: var(--tdl-grey-300); font-size: 0.85rem; padding: 0 24px; }

.tdl-trade { background: var(--tdl-navy-800); color: var(--tdl-white); padding: 70px 24px; }
.tdl-trade__copy { max-width: 640px; margin: 0 auto; text-align: center; }
.tdl-checklist { list-style: none; padding: 0; text-align: left; display: inline-block; margin: 20px auto; }
.tdl-checklist li::before { content: "✓ "; color: var(--tdl-success); }

.tdl-cta-banner { text-align: center; padding: 80px 24px; background: var(--tdl-navy-900); color: var(--tdl-white); }
.tdl-cta-banner h2 { font-size: 1.9rem; max-width: 760px; margin: 0 auto 12px; }
.tdl-cta-banner p { color: var(--tdl-grey-300); margin-bottom: 24px; }

/* ---------------------------------------------------------------- */
/* Our Collections (white commerce section)                          */
/* ---------------------------------------------------------------- */
.tdl-collections { max-width: var(--tdl-max-width); margin: 0 auto; padding: 70px 24px; text-align: center; }
.tdl-collections__intro { color: var(--tdl-grey-500); margin-bottom: 40px; }
.tdl-collections__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; text-align: left; }
.tdl-collection-card { background: var(--tdl-white); border: 1px solid #e6eaf2; border-radius: var(--tdl-radius-sm); padding: 14px; }
.tdl-collection-card img { border-radius: var(--tdl-radius-sm); aspect-ratio: 1; object-fit: cover; }
.tdl-collection-card h3 { font-size: 1rem; margin: 10px 0 4px; }
.tdl-price { color: var(--tdl-blue-500); font-weight: 700; }
.tdl-collection-card__actions { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.tdl-collection-card .tdl-btn--outline { color: var(--tdl-blue-500); border-color: var(--tdl-blue-500); }
.tdl-shop-all { display: inline-block; margin-top: 30px; color: var(--tdl-blue-500); font-weight: 600; }

/* ---------------------------------------------------------------- */
/* Configurator (Process 1/2/3)                                      */
/* ---------------------------------------------------------------- */
.tdl-configurator { background: var(--tdl-navy-900); color: var(--tdl-white); padding: 30px 24px 80px; }
.tdl-stepper { max-width: var(--tdl-max-width); margin: 0 auto 24px; }
.tdl-back-home { color: var(--tdl-grey-300); font-size: 0.85rem; }
.tdl-stepper__list { display: flex; gap: 40px; list-style: none; padding: 0; margin: 16px 0 0; justify-content: center; color: var(--tdl-grey-500); }
.tdl-stepper__list li span { display: inline-flex; width: 22px; height: 22px; border-radius: 50%; background: var(--tdl-navy-700); align-items: center; justify-content: center; margin-right: 8px; font-size: 0.75rem; }
.tdl-stepper__list li.is-active { color: var(--tdl-white); font-weight: 600; }
.tdl-stepper__list li.is-active span, .tdl-stepper__list li.is-done span { background: var(--tdl-blue-500); }

.tdl-configurator__intro { max-width: var(--tdl-max-width); margin: 0 auto 30px; text-align: center; }
.tdl-configurator__intro h1 { font-size: 2rem; margin-bottom: 6px; }
.tdl-configurator__intro p { color: var(--tdl-grey-300); }

.tdl-step-grid { max-width: var(--tdl-max-width); margin: 0 auto 24px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tdl-step-grid--design { grid-template-columns: 1fr 1.4fr 1fr; }
.tdl-step-card { background: var(--tdl-navy-800); border: 1px solid var(--tdl-navy-600); border-radius: var(--tdl-radius); padding: 20px; }
.tdl-step-card h4 { margin: 0 0 4px; }
.tdl-step-card__hint { color: var(--tdl-grey-500); font-size: 0.82rem; margin: 0 0 14px; }
.tdl-step-card label { display: block; font-size: 0.82rem; color: var(--tdl-grey-300); margin-bottom: 12px; }
.tdl-input-unit { display: flex; align-items: center; background: var(--tdl-navy-700); border-radius: var(--tdl-radius-sm); margin-top: 4px; padding: 8px 12px; }
.tdl-input-unit input { background: transparent; border: none; color: var(--tdl-white); flex: 1; font-size: 1rem; }
.tdl-input-unit input:focus { outline: none; }
.tdl-input-unit span { color: var(--tdl-grey-500); }
.tdl-tile-count { background: var(--tdl-navy-700); border-radius: var(--tdl-radius-sm); padding: 10px 14px; display: flex; justify-content: space-between; font-size: 0.85rem; }

.tdl-radio-cards, .tdl-toggle-cards { display: flex; flex-direction: column; gap: 10px; }
.tdl-toggle-cards { flex-direction: row; }
.tdl-radio-card, .tdl-toggle-card, .tdl-pill {
	background: var(--tdl-navy-700);
	border: 1px solid var(--tdl-navy-600);
	border-radius: var(--tdl-radius-sm);
	padding: 10px 14px;
	cursor: pointer;
	flex: 1;
	text-align: center;
}
.tdl-radio-card input, .tdl-toggle-card input, .tdl-pill input { display: none; }
.tdl-radio-card:has(input:checked), .tdl-toggle-card:has(input:checked), .tdl-pill:has(input:checked) {
	border-color: var(--tdl-blue-500);
	background: rgba(47,111,237,0.15);
}
.tdl-pill-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tdl-pill { flex: none; padding: 8px 16px; }
.tdl-tooltip { font-size: 0.78rem; color: var(--tdl-grey-500); margin-top: 12px; }
.tdl-shape-guide-link { font-size: 0.8rem; color: var(--tdl-blue-400); }

.tdl-upload-prompt-panel { max-width: var(--tdl-max-width); margin: 0 auto 24px; display: grid; grid-template-columns: 1fr 2fr; gap: 18px; }
.tdl-upload-box, .tdl-prompt-box { background: var(--tdl-navy-800); border: 1px solid var(--tdl-navy-600); border-radius: var(--tdl-radius); padding: 20px; }
.tdl-dropzone {
	display: flex; flex-direction: column; align-items: center; justify-content: center;
	border: 1px dashed var(--tdl-grey-500); border-radius: var(--tdl-radius-sm);
	padding: 30px; cursor: pointer; text-align: center; color: var(--tdl-grey-300); gap: 6px;
}
.tdl-ip-declaration { display: flex; gap: 8px; font-size: 0.75rem; color: var(--tdl-grey-500); margin-top: 12px; align-items: flex-start; }
.tdl-prompt-box { position: relative; }
.tdl-prompt-box textarea {
	width: 100%; min-height: 110px; background: var(--tdl-navy-700); border: 1px solid var(--tdl-navy-600);
	border-radius: var(--tdl-radius-sm); color: var(--tdl-white); padding: 14px; font-family: inherit; resize: vertical;
}
.tdl-prompt-examples { display: flex; gap: 8px; margin-top: 10px; }
.tdl-chip { background: var(--tdl-navy-700); border: 1px solid var(--tdl-navy-600); color: var(--tdl-grey-300); border-radius: 999px; padding: 6px 14px; font-size: 0.78rem; cursor: pointer; }
.tdl-engine-tag { position: absolute; bottom: 16px; right: 20px; font-size: 0.7rem; color: var(--tdl-grey-500); }

.tdl-generate-row { max-width: var(--tdl-max-width); margin: 0 auto 30px; text-align: center; }
.tdl-generate-hint { color: var(--tdl-grey-500); font-size: 0.8rem; margin-top: 10px; }

.tdl-draft-grid { max-width: var(--tdl-max-width); margin: 0 auto 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.tdl-draft-thumb { border: 2px solid transparent; border-radius: var(--tdl-radius-sm); padding: 0; overflow: hidden; cursor: pointer; background: var(--tdl-navy-800); }
.tdl-draft-thumb.is-selected { border-color: var(--tdl-blue-500); }

.tdl-preview-window { max-width: var(--tdl-max-width); margin: 0 auto 24px; background: var(--tdl-navy-800); border: 1px solid var(--tdl-navy-600); border-radius: var(--tdl-radius); padding: 24px; text-align: center; }
.tdl-preview-canvas { background: var(--tdl-navy-700); border-radius: var(--tdl-radius-sm); min-height: 340px; display: flex; align-items: center; justify-content: center; margin: 16px 0; overflow: hidden; }
.tdl-preview-canvas.is-3d { transform: perspective(900px) rotateX(8deg); }
.tdl-preview-canvas img { max-height: 400px; }
.tdl-preview-placeholder { color: var(--tdl-grey-500); }
.tdl-preview-controls { display: flex; align-items: center; justify-content: center; gap: 24px; color: var(--tdl-grey-300); font-size: 0.85rem; }
.tdl-icon-btn { background: transparent; border: none; color: inherit; cursor: pointer; font-size: 0.85rem; }
.tdl-credits-bar { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--tdl-navy-600); font-size: 0.85rem; color: var(--tdl-grey-300); }
.tdl-buy-credits { color: var(--tdl-blue-400); margin-left: 10px; text-decoration: underline; }

.tdl-swatch-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; min-height: 120px; }
.tdl-swatch-dot { width: 32px; height: 32px; border-radius: 50%; border: 2px solid transparent; background-size: cover; cursor: pointer; }
.tdl-swatch-dot.is-selected { border-color: var(--tdl-white); }
.tdl-design-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.tdl-design-thumb { border: 2px solid transparent; border-radius: var(--tdl-radius-sm); padding: 0; overflow: hidden; cursor: pointer; }
.tdl-design-thumb.is-selected { border-color: var(--tdl-blue-500); }
.tdl-load-more { background: none; border: none; color: var(--tdl-blue-400); cursor: pointer; margin-top: 12px; font-size: 0.82rem; }

.tdl-struggling-banner { max-width: var(--tdl-max-width); margin: 0 auto 30px; background: var(--tdl-navy-800); border: 1px solid var(--tdl-blue-500); border-radius: var(--tdl-radius); padding: 18px 24px; }
.tdl-struggling-banner p { color: var(--tdl-grey-300); margin: 6px 0 14px; }

.tdl-prior-generations { max-width: var(--tdl-max-width); margin: 0 auto 30px; }
.tdl-prior-generations__grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-top: 12px; }
.tdl-prior-generations__grid img { border-radius: var(--tdl-radius-sm); cursor: pointer; }

.tdl-configurator__footer { max-width: var(--tdl-max-width); margin: 0 auto 50px; display: flex; align-items: center; justify-content: space-between; }
.tdl-step-progress { flex: 1; margin-right: 30px; height: 6px; background: var(--tdl-navy-700); border-radius: 999px; position: relative; color: transparent; }
.tdl-step-progress__bar { position: absolute; left: 0; top: 0; height: 100%; background: var(--tdl-blue-500); border-radius: 999px; }
.tdl-step-progress::after { content: attr(data-label); }

/* Preview in Room / Review & Purchase */
.tdl-room-source-tabs { max-width: var(--tdl-max-width); margin: 0 auto 20px; display: flex; gap: 10px; justify-content: center; }
.tdl-tab { background: var(--tdl-navy-800); border: 1px solid var(--tdl-navy-600); color: var(--tdl-grey-300); padding: 10px 20px; border-radius: 999px; cursor: pointer; }
.tdl-tab.is-active { background: var(--tdl-blue-500); color: var(--tdl-white); border-color: var(--tdl-blue-500); }
.tdl-room-source-panel { max-width: var(--tdl-max-width); margin: 0 auto 24px; }
.tdl-room-scene-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.tdl-room-scene-thumb { border-radius: var(--tdl-radius-sm); overflow: hidden; border: 2px solid transparent; cursor: pointer; }
.tdl-room-scene-thumb.is-selected { border-color: var(--tdl-blue-500); }
.tdl-composite-preview { max-width: var(--tdl-max-width); margin: 0 auto; text-align: center; }
.tdl-composite-canvas { background: var(--tdl-navy-700); min-height: 380px; border-radius: var(--tdl-radius); margin-top: 16px; display: flex; align-items: center; justify-content: center; }
.tdl-switch { display: inline-flex; align-items: center; gap: 10px; color: var(--tdl-grey-300); font-size: 0.85rem; }

.tdl-review-summary { max-width: 720px; margin: 0 auto 30px; background: var(--tdl-navy-800); border: 1px solid var(--tdl-navy-600); border-radius: var(--tdl-radius); padding: 26px; }
.tdl-review-summary__facts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px; margin: 20px 0; }
.tdl-review-summary__facts dt { color: var(--tdl-grey-500); font-size: 0.8rem; }
.tdl-review-summary__facts dd { margin: 0; font-weight: 600; }
.tdl-review-summary__price { display: flex; justify-content: space-between; align-items: baseline; border-top: 1px solid var(--tdl-navy-600); padding-top: 16px; font-size: 1.4rem; }

/* ---------------------------------------------------------------- */
/* Footer                                                             */
/* ---------------------------------------------------------------- */
.tdl-footer { background: var(--tdl-navy-900); color: var(--tdl-grey-300); padding: 60px 24px 20px; }
.tdl-footer__brand { text-align: center; margin-bottom: 40px; }
.tdl-logo--footer { justify-content: center; margin-bottom: 10px; }
.tdl-footer__cols { max-width: var(--tdl-max-width); margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.tdl-footer__col h4 { color: var(--tdl-white); font-size: 0.9rem; margin-bottom: 14px; }
.tdl-footer__col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; font-size: 0.85rem; }
.tdl-footer__col address { font-style: normal; font-size: 0.85rem; line-height: 1.7; }
.tdl-footer__bottom { max-width: var(--tdl-max-width); margin: 40px auto 0; display: flex; justify-content: space-between; font-size: 0.75rem; border-top: 1px solid var(--tdl-navy-700); padding-top: 20px; }

/* ---------------------------------------------------------------- */
/* Responsive — mobile mockups reflow to single column                */
/* ---------------------------------------------------------------- */
@media (max-width: 900px) {
	.tdl-journeys__grid,
	.tdl-featured-patterns__grid,
	.tdl-collections__grid,
	.tdl-step-grid,
	.tdl-step-grid--design,
	.tdl-upload-prompt-panel,
	.tdl-draft-grid,
	.tdl-room-scene-grid,
	.tdl-footer__cols {
		grid-template-columns: 1fr;
	}
	.tdl-header__inner { flex-wrap: wrap; gap: 10px; }
	.tdl-primary-nav ul { flex-wrap: wrap; justify-content: center; gap: 12px; }
	.tdl-hero h1 { font-size: 1.9rem; }
	.tdl-toggle-cards { flex-direction: column; }
}