:root {
	--noir: #0b0c0d;
	--anthracite: #16181a;
	--ligne: #2a2d30;
	--clair: #ece8e1;
	--attenue: #999c9e;
	--bronze: #b3835a;
	--bronze-clair: #d1a37a;
	--or-clair: #f0ddbb;
	--acier: #7c93a8;
	--acier-clair: #a9bccb;
	--argent-1: #c9ced2;
	--argent-2: #6f757a;
	--argent-3: #f2f4f5;

	--degrade-titre: linear-gradient(100deg, var(--bronze) 0%, var(--bronze-clair) 40%, var(--or-clair) 58%, var(--bronze-clair) 78%, var(--bronze) 100%);

	--police-titre: 'Bodoni Moda', serif;
	--police-texte: 'Work Sans', sans-serif;
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--noir);
	color: var(--clair);
	font-family: var(--police-texte);
	font-size: 16px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

h1, h2 {
	font-family: var(--police-titre);
	font-weight: 700;
	margin: 0;
	letter-spacing: 0.01em;
	background: var(--degrade-titre);
	background-size: 180% auto;
	-webkit-background-clip: text;
	background-clip: text;
	color: var(--bronze-clair);
	-webkit-text-fill-color: transparent;
}

h3 {
	font-family: var(--police-titre);
	font-weight: 600;
	margin: 0;
	color: var(--bronze-clair);
}

a {
	color: inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
	outline: 2px solid var(--bronze-clair);
	outline-offset: 3px;
}

/* ---------- Barre supérieure ---------- */

.topbar {
	position: sticky;
	top: 0;
	z-index: 10;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	padding: 0.85rem clamp(1.25rem, 5vw, 3.5rem);
	background: rgba(11, 12, 13, 0.94);
	backdrop-filter: blur(6px);
	border-bottom: 1px solid var(--ligne);
}

/* Cadre argent animé autour du logo */
.topbar__brand {
	display: inline-flex;
	flex-shrink: 0;
	line-height: 0;
	position: relative;
	padding: 7px 11px;
	isolation: isolate;
}

.topbar__brand::before {
	content: "";
	position: absolute;
	inset: 0;
	padding: 1.5px;
	background: conic-gradient(from 0deg, var(--argent-2), var(--argent-3), var(--argent-1), var(--argent-2));
	-webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
	-webkit-mask-composite: xor;
	mask-composite: exclude;
	z-index: -1;
	pointer-events: none;
}

/* Taille et inversion fixées aussi en dur dans le HTML (attribut style) :
   si cette feuille de style met du temps à charger, ou échoue, le logo
   ne prendra jamais sa taille naturelle et ne cassera pas la mise en page. */
.topbar__logo {
	display: block;
	height: 34px;
	width: auto;
	filter: invert(1) brightness(0.92);
}

.topbar__cta {
	flex-shrink: 0;
	white-space: nowrap;
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	text-decoration: none;
	font-size: 0.9rem;
	color: var(--clair);
	border: 1px solid var(--ligne);
	padding: 0.5rem 1.1rem;
	transition: border-color 0.2s ease, color 0.2s ease;
}

.topbar__cta svg {
	width: 14px;
	height: 14px;
	fill: none;
	stroke: currentColor;
	stroke-width: 1.6;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.topbar__cta:hover {
	border-color: var(--bronze);
	color: var(--bronze-clair);
}

/* ---------- Hero ---------- */

.hero {
	padding: clamp(3.5rem, 12vh, 7rem) clamp(1.25rem, 5vw, 3.5rem) clamp(2.5rem, 8vh, 4rem);
	border-bottom: 1px solid var(--ligne);
}

.hero__visual-frame {
	display: block;
	position: relative;
	width: clamp(160px, 45vw, 280px);
	margin: 2.5rem auto 0;
	padding: 10px;
	isolation: isolate;
}

.hero__visual-frame::before {
	content: "";
	position: absolute;
	inset: 0;
	padding: 1.5px;
	background: conic-gradient(from 0deg, var(--argent-2), var(--argent-3), var(--argent-1), var(--argent-2));
	-webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
	-webkit-mask-composite: xor;
	mask-composite: exclude;
	z-index: -1;
	pointer-events: none;
}

.hero__visual {
	opacity: 0.9;
}

@media (min-width: 960px) {
	.hero {
		display: flex;
		align-items: center;
		justify-content: space-between;
		gap: clamp(2rem, 6vw, 5rem);
	}

	.hero__visual-frame {
		flex: 0 1 auto;
		width: clamp(200px, 24vw, 340px);
		margin: 0;
	}
}

.hero__inner {
	max-width: 640px;
}

.hero__kicker {
	margin: 0 0 0.75rem;
	color: var(--bronze-clair);
	font-size: 0.95rem;
}

.hero__title {
	font-size: clamp(2.6rem, 8vw, 5rem);
	line-height: 1.08;
}

.hero__lead {
	max-width: 46ch;
	margin: 1.5rem 0 0;
	color: var(--attenue);
	font-size: 1.05rem;
}

.hero__stats {
	display: flex;
	gap: clamp(1.5rem, 5vw, 3rem);
	margin-top: 2.75rem;
	padding-top: 1.75rem;
	border-top: 1px solid var(--ligne);
}

.hero__stat {
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
}

.hero__stat-num {
	font-family: var(--police-titre);
	font-size: 1.9rem;
	font-weight: 600;
	background: var(--degrade-titre);
	background-size: 220% auto;
	-webkit-background-clip: text;
	background-clip: text;
	color: var(--bronze-clair);
	-webkit-text-fill-color: transparent;
	animation: reflet 6s linear infinite;
}

.hero__stat-label {
	font-size: 0.85rem;
	color: var(--attenue);
}

/* ---------- Entrée du hero au chargement ---------- */

@keyframes entree {
	from { opacity: 0; transform: translateY(16px); }
	to { opacity: 1; transform: none; }
}

@keyframes reflet {
	0% { background-position: 0% 50%; }
	100% { background-position: 220% 50%; }
}

.hero__kicker,
.hero__title,
.hero__lead,
.hero__stats,
.hero__visual-frame {
	animation: entree 0.8s ease both;
}

.hero__kicker { animation-delay: 0s; }
.hero__title { animation-delay: 0.1s; }
.hero__lead { animation-delay: 0.25s; }
.hero__stats { animation-delay: 0.4s; }
.hero__visual-frame { animation-delay: 0.5s; }

/* ---------- Sections ---------- */

.bloc {
	display: grid;
	grid-template-columns: 3.25rem 1fr;
	gap: clamp(1rem, 4vw, 2.5rem);
	padding: clamp(2.5rem, 7vh, 4rem) clamp(1.25rem, 5vw, 3.5rem);
	border-bottom: 1px solid var(--ligne);
}

.bloc__icon {
	padding-top: 0.2rem;
}

.bloc__icon svg {
	width: 30px;
	height: 30px;
	fill: none;
	stroke: var(--bronze-clair);
	stroke-width: 1.4;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.bloc__icon--acier svg {
	stroke: var(--acier-clair);
}

.bloc__content {
	max-width: 640px;
}

.bloc__content h2 {
	position: relative;
	display: inline-block;
	font-size: clamp(1.8rem, 4vw, 2.4rem);
	padding-bottom: 0.6rem;
	margin-bottom: 1rem;
}

.bloc__content h2::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	height: 2px;
	width: 56px;
	background: var(--degrade-titre);
	background-size: 180% auto;
}

.js .reveal h2::after {
	width: 0;
	transition: width 0.7s ease 0.15s;
}

.js .reveal.in-view h2::after {
	width: 56px;
}

.bloc__content p {
	color: var(--attenue);
	margin: 0 0 0.5rem;
}

.inline-link {
	color: var(--bronze-clair);
	text-decoration: underline;
	text-underline-offset: 3px;
	text-decoration-color: var(--ligne);
}

.inline-link:hover {
	text-decoration-color: var(--bronze-clair);
}

/* Révélation douce au défilement (activée en JS uniquement, voir <html class="js">) */

.js .reveal {
	opacity: 0;
	transform: translateY(16px);
	transition: opacity 0.7s ease, transform 0.7s ease;
}

.js .reveal.in-view {
	opacity: 1;
	transform: none;
}

/* ---------- Prestations ---------- */

.prestations {
	margin-top: 1.5rem;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
	gap: 1.5rem 2rem;
}

.prestations__item {
	border-left: 2px solid var(--bronze);
	padding-left: 1rem;
	transition: border-color 0.25s ease, transform 0.25s ease;
}

.prestations__item:nth-child(even) {
	border-left-color: var(--acier);
}

.prestations__item:hover {
	border-left-color: var(--or-clair);
	transform: translateX(4px);
}

.prestations__item h3 {
	font-size: 1.15rem;
	margin-bottom: 0.4rem;
}

.prestations__item p {
	margin: 0;
	color: var(--attenue);
	font-size: 0.92rem;
}

/* ---------- Calculateur ---------- */

.calc {
	margin-top: 1.75rem;
	background: var(--anthracite);
	border: 8px solid transparent;
	border-image: repeating-linear-gradient(45deg, #caa14b 0 14px, #1c1d1f 14px 28px) 8;
	padding: clamp(1.25rem, 4vw, 2rem);
}

.calc__row {
	display: flex;
	flex-wrap: wrap;
	gap: 1.25rem;
	margin-bottom: 1.25rem;
}

.calc__toggle {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-size: 0.95rem;
	color: var(--clair);
	cursor: pointer;
}

.calc__toggle input {
	accent-color: var(--bronze);
	width: 1rem;
	height: 1rem;
}

.calc__addresses {
	display: flex;
	flex-direction: column;
	gap: 1rem;
	margin-bottom: 1.25rem;
}

.calc__field {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
}

.calc__field label {
	font-size: 0.85rem;
	color: var(--attenue);
}

.calc__field input {
	background: var(--noir);
	border: 1px solid var(--ligne);
	color: var(--clair);
	font-family: var(--police-texte);
	font-size: 0.95rem;
	padding: 0.7rem 0.9rem;
	transition: border-color 0.2s ease;
}

.calc__field input:focus {
	border-color: var(--bronze);
	outline: none;
}

.calc__submit,
.contact-form__submit {
	position: relative;
	overflow: hidden;
}

.calc__submit::after,
.contact-form__submit::after {
	content: "";
	position: absolute;
	top: 0;
	left: -60%;
	width: 40%;
	height: 100%;
	background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.35), transparent);
	transform: skewX(-20deg);
	transition: left 0.6s ease;
}

.calc__submit:hover::after,
.contact-form__submit:hover::after {
	left: 130%;
}

.calc__submit {
	background: transparent;
	border: 1px solid var(--bronze);
	color: var(--bronze-clair);
	font-family: var(--police-texte);
	font-weight: 600;
	font-size: 0.9rem;
	padding: 0.7rem 1.5rem;
	cursor: pointer;
	transition: background 0.2s ease, color 0.2s ease;
}

.calc__submit:hover {
	background: var(--bronze);
	color: var(--noir);
}

.calc__submit:disabled {
	opacity: 0.6;
	cursor: wait;
}

.calc__status {
	min-height: 1.2em;
	margin: 0.9rem 0 0;
	font-size: 0.85rem;
	color: var(--attenue);
}

.calc__result {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	padding-top: 1.25rem;
	border-top: 1px solid var(--ligne);
}

.calc__result-label {
	font-size: 0.9rem;
	color: var(--attenue);
}

.calc__result-price {
	font-family: var(--police-titre);
	font-size: 2.4rem;
	font-weight: 600;
	color: var(--bronze-clair);
	display: inline-block;
}

@keyframes apparition-prix {
	from { opacity: 0.3; transform: scale(0.92); }
	to { opacity: 1; transform: scale(1); }
}

.calc__result-price--pulse {
	animation: apparition-prix 0.5s ease;
}

.calc__note {
	margin: 1.25rem 0 0;
	font-size: 0.8rem;
	color: var(--attenue);
	opacity: 0.8;
}

/* ---------- Formulaire de contact ---------- */

.contact-form {
	margin-top: 1.75rem;
	display: flex;
	flex-direction: column;
	gap: 1.25rem;
	max-width: 480px;
}

.contact-form__field {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
}

.contact-form__field label {
	font-size: 0.85rem;
	color: var(--attenue);
}

.contact-form__field input,
.contact-form__field textarea {
	background: var(--anthracite);
	border: 1px solid var(--ligne);
	color: var(--clair);
	font-family: var(--police-texte);
	font-size: 0.95rem;
	padding: 0.75rem 0.9rem;
	resize: vertical;
	transition: border-color 0.2s ease;
}

.contact-form__field input:focus,
.contact-form__field textarea:focus {
	border-color: var(--bronze);
	outline: none;
}

.contact-form__submit {
	align-self: flex-start;
	background: var(--bronze);
	color: var(--noir);
	border: none;
	font-family: var(--police-titre);
	font-weight: 600;
	font-size: 1.05rem;
	letter-spacing: 0.01em;
	padding: 0.85rem 2rem;
	cursor: pointer;
	transition: background 0.2s ease;
}

.contact-form__submit:hover {
	background: var(--bronze-clair);
}

/* ---------- Pied de page ---------- */

.footer {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem 1.5rem;
	justify-content: space-between;
	padding: 2rem clamp(1.25rem, 5vw, 3.5rem) 2.5rem;
	color: var(--attenue);
	font-size: 0.85rem;
}

/* ---------- Réduction de mouvement ---------- */

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
	*,
	.hero__kicker,
	.hero__title,
	.hero__lead,
	.hero__stats,
	.hero__visual-frame,
	.hero__stat-num,
	.reveal,
	.js .reveal {
		transition: none !important;
		animation: none !important;
		opacity: 1 !important;
		transform: none !important;
	}
	.js .reveal h2::after,
	.bloc__content h2::after {
		width: 56px !important;
	}
}

/* ---------- Mobile ---------- */

@media (max-width: 640px) {
	.bloc {
		grid-template-columns: 1fr;
	}
	.bloc__icon {
		padding-top: 0;
		margin-bottom: 0.4rem;
	}
	.hero__stats {
		flex-direction: column;
		gap: 1.25rem;
	}
	.topbar {
		padding: 0.75rem 1.25rem;
	}
	.topbar__logo {
		height: 28px;
	}
	.contact-form__submit,
	.topbar__cta {
		min-height: 44px;
		display: inline-flex;
		align-items: center;
	}
	.calc__toggle input {
		width: 1.2rem;
		height: 1.2rem;
	}
	.calc__result-price {
		font-size: 1.9rem;
	}
	.calc {
		border-width: 5px;
		border-image: repeating-linear-gradient(45deg, #caa14b 0 9px, #1c1d1f 9px 18px) 5;
	}
}