@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@300;400;500;600;700&display=swap');

:root {
	--nav-maroon: #800000;
	--nav-gold: #f4a000;
	--nav-white: #ffffff;
	--nav-text: #1f2937;
	--nav-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
	--top-bar-height: 48px;
	--header-height: 96px;
	--transition-fast: 0.25s ease;
	--transition-normal: 0.35s ease;
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body.hidden-scrolling {
	overflow: hidden;
	touch-action: none;
}

.navs {
	line-height: 1.5;
	font-family: 'Kanit', sans-serif;
}

.navs ul {
	list-style: none;
	margin: 0;
	padding: 0;
}

.navs a {
	text-decoration: none;
}

/* แถบด้านบนสำหรับข้อความวิ่งและไอคอนโซเชียล */
.top-bar {
	position: fixed;
	inset: 0 0 auto 0;
	z-index: 90;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	min-height: var(--top-bar-height);
	padding: 8px clamp(12px, 2vw, 24px);
	background-color: var(--nav-maroon);
	color: var(--nav-white);
	transition: transform var(--transition-normal);
}

.top-bar.topbar-scrolled {
	transform: translateY(calc(-1 * var(--top-bar-height)));
}

.typing {
	display: flex;
	align-items: center;
	gap: 12px;
	min-width: 0;
	flex: 1;
}

.typing img {
	width: 38px;
	height: 38px;
	object-fit: contain;
	flex-shrink: 0;
}

.typing-container {
	min-width: 0;
	font-size: clamp(0.9rem, 1.2vw, 1.35rem);
	font-weight: 600;
	color: var(--nav-white);
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.icon-bar {
	display: flex;
	align-items: center;
	gap: 8px;
	flex-shrink: 0;
}

.icon-bar a {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.1);
	transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.icon-bar a:hover,
.icon-bar a:focus-visible {
	background: rgba(255, 255, 255, 0.2);
	transform: translateY(-1px);
}

.icon-bar img {
	width: 20px;
	height: 20px;
	object-fit: contain;
}

/* โครงสร้าง header หลัก */
.header {
	position: fixed;
	inset: var(--top-bar-height) 0 auto 0;
	z-index: 98;
	background-color: var(--nav-white);
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
	transition: top var(--transition-normal), box-shadow var(--transition-normal);
}

.header.header-scrolled {
	top: 0;
}

.container-nav {
	width: min(1200px, calc(100% - 24px));
	margin: 0 auto;
}

.header-main {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
	min-height: var(--header-height);
	padding: 12px 0;
}

.logo {
	display: flex;
	align-items: center;
	gap: 14px;
	min-width: 0;
	flex: 1;
}

.logo img {
	width: clamp(56px, 6vw, 84px);
	height: auto;
	object-fit: contain;
	flex-shrink: 0;
}

.logo-text {
	min-width: 0;
}

.logo h2 {
	margin: 0;
	font-size: clamp(1rem, 2vw, 1.6rem);
	line-height: 1.2;
	color: var(--nav-maroon);
}

.logo p {
	margin: 4px 0 0;
	font-size: clamp(0.82rem, 1.2vw, 1rem);
	color: var(--nav-text);
}

/* ปุ่ม hamburger สำหรับมือถือและแท็บเล็ต */
.header .open-nav-menu,
.header .close-nav-menu {
	display: none;
	align-items: center;
	justify-content: center;
	border: 0;
	cursor: pointer;
}

.header .open-nav-menu {
	width: 46px;
	height: 46px;
	border-radius: 12px;
	background: transparent;
	flex-shrink: 0;
}

.header .open-nav-menu span,
.header .open-nav-menu span::before,
.header .open-nav-menu span::after {
	display: block;
	width: 24px;
	height: 2px;
	background-color: var(--nav-maroon);
	border-radius: 99px;
	transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.header .open-nav-menu span {
	position: relative;
}

.header .open-nav-menu span::before,
.header .open-nav-menu span::after {
	content: '';
	position: absolute;
	left: 0;
}

.header .open-nav-menu span::before {
	top: -7px;
}

.header .open-nav-menu span::after {
	top: 7px;
}

.header .menu-overlay {
	position: fixed;
	inset: 0;
	z-index: 97;
	background: rgba(0, 0, 0, 0.45);
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.header .menu-overlay.active {
	opacity: 1;
	visibility: visible;
}

.header .nav-menu {
	padding: 0;
}

.header .menu {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 6px 24px;
}

.header .menu > .menu-item {
	position: relative;
}

.header .menu > .menu-item > a {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 12px 0;
	font-size: 1rem;
	font-weight: 600;
	color: var(--nav-maroon);
	transition: color var(--transition-fast);
}

.header .menu > .menu-item > a:hover,
.header .menu > .menu-item > a:focus-visible {
	color: var(--nav-gold);
}

/* เครื่องหมายบวก/ลบสำหรับเมนูที่มีเมนูย่อย */
.header .menu-item-has-children > a .plus {
	position: relative;
	display: inline-block;
	width: 12px;
	height: 12px;
	flex-shrink: 0;
	pointer-events: none;
}

.header .menu-item-has-children > a .plus::before,
.header .menu-item-has-children > a .plus::after {
	content: '';
	position: absolute;
	inset: 50% auto auto 50%;
	width: 100%;
	height: 2px;
	background-color: currentColor;
	transform: translate(-50%, -50%);
	transition: transform var(--transition-fast);
}

.header .menu-item-has-children > a .plus::after {
	transform: translate(-50%, -50%) rotate(90deg);
}

.header .menu-item-has-children.active > a .plus::after,
.header .menu-item-has-children.is-open > a .plus::after {
	transform: translate(-50%, -50%) rotate(0deg);
}

/* เมนูย่อยทุกระดับ */
.header .sub-menu {
	position: absolute;
	left: 0;
	top: calc(100% + 10px);
	min-width: 240px;
	padding: 10px 0;
	background: var(--nav-white);
	border-top: 3px solid var(--nav-gold);
	border-radius: 0 0 14px 14px;
	box-shadow: var(--nav-shadow);
	opacity: 0;
	visibility: hidden;
	transform: translateY(8px);
	transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
	z-index: 20;
}

.header .sub-menu .menu-item {
	position: relative;
}

.header .sub-menu .menu-item > a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	padding: 10px 16px;
	font-size: 0.95rem;
	font-weight: 500;
	color: var(--nav-maroon);
	border-bottom: 1px solid rgba(128, 0, 0, 0.08);
	white-space: nowrap;
	transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header .sub-menu .menu-item:last-child > a {
	border-bottom: 0;
}

.header .sub-menu .menu-item > a:hover,
.header .sub-menu .menu-item > a:focus-visible {
	background: rgba(244, 160, 0, 0.08);
	color: var(--nav-gold);
}

.header .sub-menu .menu-item-has-children > a::after {
	content: '\203A';
	font-size: 1.1rem;
	font-weight: 700;
}

.header .sub-menu .sub-menu {
	top: -3px;
	left: calc(100% + 8px);
}

@media (min-width: 992px) {
	.header .menu > .menu-item:hover > .sub-menu,
	.header .menu > .menu-item:focus-within > .sub-menu,
	.header .sub-menu .menu-item:hover > .sub-menu,
	.header .sub-menu .menu-item:focus-within > .sub-menu,
	.header .menu-item-has-children.is-open > .sub-menu {
		opacity: 1;
		visibility: visible;
		transform: translateY(0);
	}
}

/* ปรับการแสดงผลสำหรับแท็บเล็ตและมือถือ */
@media (max-width: 991px) {
	:root {
		--top-bar-height: 56px;
		--header-height: 80px;
	}

	.top-bar {
		padding-inline: 12px;
	}

	.typing-container {
		font-size: 0.95rem;
	}

	.header .open-nav-menu,
	.header .close-nav-menu {
		display: inline-flex;
	}

	.header .nav-menu {
		position: fixed;
		inset: 0 0 0 auto;
		width: min(88vw, 360px);
		height: 100dvh;
		padding: 18px 0 28px;
		background: var(--nav-maroon);
		box-shadow: -12px 0 30px rgba(0, 0, 0, 0.18);
		overflow-y: auto;
		transform: translateX(100%);
		visibility: hidden;
		transition: transform var(--transition-normal), visibility var(--transition-normal);
		z-index: 99;
	}

	.header .nav-menu.open {
		transform: translateX(0);
		visibility: visible;
	}

	.header .close-nav-menu {
		width: 44px;
		height: 44px;
		margin: 0 0 12px 16px;
		border-radius: 999px;
		background: rgba(255, 255, 255, 0.12);
	}

	.header .close-nav-menu img {
		width: 16px;
		height: 16px;
		object-fit: contain;
	}

	.header .menu {
		display: block;
	}

	.header .menu > .menu-item {
		margin: 0;
	}

	.header .menu > .menu-item > a,
	.header .sub-menu .menu-item > a {
		padding: 14px 18px;
		color: var(--nav-white);
		border-bottom: 1px solid rgba(244, 160, 0, 0.45);
		white-space: normal;
	}

	.header .menu > .menu-item > a:hover,
	.header .menu > .menu-item > a:focus-visible,
	.header .sub-menu .menu-item > a:hover,
	.header .sub-menu .menu-item > a:focus-visible {
		background: rgba(255, 255, 255, 0.08);
		color: var(--nav-white);
	}

	.header .menu-item-has-children > a {
		justify-content: space-between;
	}

	.header .sub-menu,
	.header .sub-menu .sub-menu {
		position: static;
		min-width: 100%;
		padding: 0;
		background: transparent;
		border-top: 0;
		border-radius: 0;
		box-shadow: none;
		opacity: 1;
		visibility: visible;
		transform: none;
		max-height: 0;
		overflow: hidden;
		transition: max-height var(--transition-normal);
	}

	.header .menu-item-has-children.active > .sub-menu {
		max-height: 2000px;
	}

	.header .sub-menu .menu-item > a {
		padding-left: 34px;
		font-size: 0.94rem;
	}

	.header .sub-menu .sub-menu .menu-item > a {
		padding-left: 50px;
		font-size: 0.9rem;
	}

	.header .sub-menu .menu-item-has-children > a::after {
		content: '';
	}
}

/* มือถือขนาดเล็ก */
@media (max-width: 767px) {
	.top-bar {
		flex-wrap: wrap;
		justify-content: center;
		gap: 8px;
		padding-block: 8px;
	}

	.typing {
		width: 100%;
		justify-content: center;
	}

	.typing-container {
		text-align: center;
		white-space: normal;
	}

	.icon-bar {
		width: 100%;
		justify-content: center;
	}

	.logo {
		gap: 10px;
	}

	.logo h2 {
		font-size: 1rem;
	}

	.logo p {
		font-size: 0.78rem;
	}

	.container-nav {
		width: min(100% - 16px, 1200px);
	}
}

@media (max-width: 480px) {
	:root {
		--top-bar-height: 88px;
		--header-height: 72px;
	}

	.top-bar {
		padding-inline: 10px;
	}

	.typing img {
		width: 32px;
		height: 32px;
	}

	.icon-bar a {
		width: 32px;
		height: 32px;
	}

	.icon-bar img {
		width: 18px;
		height: 18px;
	}

	.logo img {
		width: 48px;
	}
}

/* ปุ่มลัดด้านล่างของหน้าจอ */
#button-top,
#messenger {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	border-radius: 999px;
	position: fixed;
	bottom: 18px;
	opacity: 0;
	visibility: hidden;
	z-index: 1000;
	transition: background-color var(--transition-fast), opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
	animation: floating-bounce 1.5s ease-in-out infinite;
}

#button-top {
	right: 12px;
	background-color: #ff9800;
}

#messenger {
	left: 12px;
	background-color: var(--nav-gold);
}

#button-top::after {
	content: '\f077';
	font-family: FontAwesome;
	font-size: 1.35rem;
	color: var(--nav-white);
}

#messenger img {
	width: 28px;
	height: 28px;
	object-fit: contain;
}

#button-top:hover,
#messenger:hover {
	background-color: var(--nav-maroon);
	transform: translateY(-2px);
}

#button-top:active,
#messenger:active {
	background-color: #555555;
}

#button-top.show,
#messenger.show {
	opacity: 1;
	visibility: visible;
}

@keyframes floating-bounce {
	0% {
		transform: translateY(0);
	}

	50% {
		transform: translateY(-8px);
	}

	100% {
		transform: translateY(0);
	}
}

@media (min-width: 500px) {
	#button-top {
		right: 24px;
	}

	#messenger {
		left: 24px;
	}
}