@charset "utf-8";
/* Navigation — charte OptikStudio 2026 */

/* ===== Desktop nav ===== */

.nav1 {
	width: 100%;
	background: transparent;
	transition: background-color 300ms ease, box-shadow 300ms ease, padding 300ms ease;
}

.nav1-inner {
	max-width: 1400px;
	margin: 0 auto;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 1.6em 3em;
}

.nav1-logo {
	display: flex;
	align-items: center;
	text-decoration: none;
}

.nav1-logo img {
	display: block;
	height: 2.8em;
	width: auto;
	border-radius: 0.25em;
}

.nav1-links {
	list-style: none;
	display: flex;
	align-items: center;
	gap: 2.4em;
	margin: 0;
	padding: 0;
}

.nav1-links a {
	font-family: var(--font-sans);
	font-size: 0.78em;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: #fff;
	text-decoration: none;
	padding-bottom: 4px;
	border-bottom: 1px solid transparent;
	transition: color 300ms ease, border-color 300ms ease;
}

.nav1-links a:hover {
	color: var(--brass);
	border-bottom-color: var(--brass);
}

.nav1-right {
	display: flex;
	align-items: center;
	gap: 1.6em;
}

.nav1-tel {
	font-family: var(--font-sans);
	font-size: 0.85em;
	letter-spacing: 0.04em;
	color: #fff;
	text-decoration: none;
}

.nav1-cta {
	font-family: var(--font-sans);
	font-size: 0.75em;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: #fff;
	border: 1px solid #fff;
	padding: 0.9em 1.6em;
	text-decoration: none;
	transition: background-color 300ms ease, color 300ms ease, border-color 300ms ease;
}

.nav1-cta:hover {
	background: var(--brass);
	border-color: var(--brass);
	color: #fff;
}

/* état "scrolled" : fond ivoire opaque, texte encre */
.nav1.is-scrolled {
	background: rgba(246, 241, 234, 0.97);
	box-shadow: 0 1px 0 rgba(38, 37, 31, 0.08);
}

.nav1.is-scrolled .nav1-inner {
	padding: 1.05em 3em;
}

.nav1.is-scrolled .nav1-links a,
.nav1.is-scrolled .nav1-tel {
	color: var(--ink);
}

.nav1.is-scrolled .nav1-cta {
	color: var(--ink);
	border-color: var(--ink);
}

.nav1.is-scrolled .nav1-cta:hover {
	background: var(--green);
	border-color: var(--green);
	color: #fff;
}

/* ===== Mobile nav ===== */

.navm1-bar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 1.1em 1.4em;
	background: rgba(246, 241, 234, 0.97);
	box-shadow: 0 1px 0 rgba(38, 37, 31, 0.08);
}

.navm1-logo {
	display: flex;
	align-items: center;
	text-decoration: none;
}

.navm1-logo img {
	display: block;
	height: 2.1em;
	width: auto;
	border-radius: 0.25em;
}

.navm1-burger {
	width: 2.4em;
	height: 2.4em;
	background: transparent;
	border: 0;
	cursor: pointer;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 5px;
	padding: 0;
}

.navm1-burger span {
	display: block;
	width: 24px;
	height: 1px;
	background: var(--ink);
	transition: transform 250ms ease, opacity 250ms ease;
}

.navm1.is-open .navm1-burger span:nth-child(1) {
	transform: translateY(6px) rotate(45deg);
}
.navm1.is-open .navm1-burger span:nth-child(2) {
	opacity: 0;
}
.navm1.is-open .navm1-burger span:nth-child(3) {
	transform: translateY(-6px) rotate(-45deg);
}

.navm1-panel {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: var(--bg);
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 2em;
	opacity: 0;
	visibility: hidden;
	transform: translateY(-8px);
	transition: opacity 280ms ease, transform 280ms ease, visibility 280ms;
}

.navm1.is-open .navm1-panel {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.navm1-links {
	list-style: none;
	margin: 0;
	padding: 0;
	text-align: center;
}

.navm1-links li {
	margin: 0 0 1.1em 0;
}

.navm1-links a {
	font-family: var(--font-display);
	font-size: 1.9em;
	color: var(--ink);
	text-decoration: none;
}

.navm1-tel {
	font-family: var(--font-sans);
	letter-spacing: 0.05em;
	color: var(--body-color);
	text-decoration: none;
}

.navm1-cta {
	font-family: var(--font-sans);
	font-size: 0.8em;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: #fff;
	background: var(--green);
	border: 1px solid var(--green);
	padding: 0.95em 2em;
	text-decoration: none;
}

/* ===== Filet bas de page ===== */

.navbas1 {
	width: 100%;
	height: 6px;
	background: linear-gradient(90deg, var(--green) 0%, var(--brass) 50%, var(--green) 100%);
	pointer-events: none;
}

@media screen and (max-width: 800px) {
	.nav1-inner {
		padding: 1.2em 1.6em;
	}
	.nav1-links {
		gap: 1.4em;
	}
}