/* SPIB SimpleSAMLphp Theme — New Design
 *
 * Full-viewport login experience with photo slideshow,
 * glassmorphism card, and responsive layout.
 *
 * Overrides the default SimpleSAMLphp stylesheet.css loaded first.
 */

:root {
	--spib-green: #1f5733;
	--spib-green-deep: #143924;
	--spib-green-soft: rgba(31, 87, 51, 0.18);
	--cool-gray-900: #192028;
	--cool-gray-700: #4b5865;
	--cool-gray-500: #83909d;
	--cool-gray-200: #d7dde3;
	--surface: rgba(239, 244, 247, 0.7);
	--surface-strong: rgba(248, 251, 252, 0.86);
	--surface-border: rgba(255, 255, 255, 0.42);
	--shadow-strong: 0 32px 80px rgba(10, 23, 20, 0.24);
	--shadow-soft: 0 18px 48px rgba(10, 23, 20, 0.16);
	--radius-xl: 32px;
	--radius-lg: 24px;
}

html,
body {
	min-height: 100%;
}

body {
	font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
	color: var(--cool-gray-900);
	margin: 0;
	background:
		radial-gradient(circle at top left, rgba(255, 255, 255, 0.7), transparent 34%),
		linear-gradient(145deg, #dbe2e8 0%, #c9d3db 48%, #edf2f5 100%);
}

a {
	color: var(--spib-green);
	text-decoration: none;
	transition: color 0.25s ease, opacity 0.25s ease;
}

a:hover,
a:focus {
	color: var(--spib-green-deep);
	background: transparent;
	padding: 0;
}

/* ── Layout shells ── */

#layout,
main,
#content,
#portalmenu,
#portalcontent {
	background: transparent;
}

#layout {
	min-height: 100vh;
	padding: 28px;
	box-sizing: border-box;
}

/* ── Header ── */

#header {
	height: auto;
	background: transparent;
	position: relative;
	z-index: 3;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
}

#header #logo {
	display: inline-flex;
	align-items: center;
	padding: 14px 18px;
	border-radius: 999px;
	background: rgba(20, 57, 36, 0.88);
	box-shadow: 0 18px 40px rgba(20, 57, 36, 0.24);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
}

#header #logo img {
	display: block;
	height: 34px;
	width: auto;
}

/* Hide SSP default header chrome */
#header #languagebar,
#header .langbar,
#header .mobile-menu,
#header .language-menu {
	display: none;
}

#header .logospace,
#header .v-center,
#header .logo-header {
	padding: 0;
	margin: 0;
	display: inline;
}

.return-home-link,
.return-home-link:visited {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 14px 20px;
	border-radius: 999px;
	background: rgba(248, 251, 252, 0.84);
	border: 1px solid rgba(255, 255, 255, 0.48);
	box-shadow: 0 18px 40px rgba(10, 23, 20, 0.14);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	color: var(--spib-green-deep);
	font-size: 0.92rem;
	font-weight: 700;
	letter-spacing: 0.01em;
	white-space: nowrap;
}

.return-home-link:hover,
.return-home-link:focus,
.return-home-link:visited:hover,
.return-home-link:visited:focus {
	color: var(--spib-green-deep);
	background: rgba(255, 255, 255, 0.96);
	padding: 14px 20px;
	transform: translateY(-1px);
}

/* ── Content area ── */

.wrap {
	width: min(1440px, 100%);
	max-width: none;
	margin: 0 auto;
}

#content {
	padding: 24px 0 0;
}

#portalmenu,
#portalcontent {
	border: none;
	margin: 0;
	padding: 0;
}

/* ── Login experience grid ── */

.login-experience {
	display: grid;
	grid-template-columns: minmax(0, 1.7fr) minmax(340px, 0.72fr);
	align-items: stretch;
	min-height: calc(100vh - 132px);
	border-radius: 40px;
	overflow: hidden;
	position: relative;
	box-shadow: var(--shadow-strong);
	background: rgba(20, 57, 36, 0.1);
}

.login-showcase,
.login-panel-shell {
	position: relative;
	min-height: 640px;
}

.login-showcase {
	background: linear-gradient(135deg, rgba(20, 57, 36, 0.14), rgba(25, 32, 40, 0.12));
}

/* ── Slideshow ── */

.showcase-slides {
	position: absolute;
	inset: 0;
	overflow: hidden;
}

.showcase-slide,
.showcase-overlay,
.showcase-frame {
	position: absolute;
	inset: 0;
}

.showcase-slide {
	opacity: 0;
	animation: none;
	transform: scale(1.04);
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0;
	box-sizing: border-box;
	overflow: hidden;
}

.showcase-slide.is-active {
	opacity: 1;
	transform: scale(1);
	transition: opacity 1.2s ease, transform 8s ease;
}

.showcase-slide img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center center;
	display: block;
}

.showcase-overlay {
	background: transparent;
}

.showcase-frame {
	border-right: 1px solid rgba(255, 255, 255, 0.18);
	background:
		linear-gradient(135deg, rgba(255, 255, 255, 0.16), transparent 28%) top left / 100% 100% no-repeat;
	pointer-events: none;
}

/* Slideshow navigation buttons */
.showcase-nav {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	z-index: 2;
	background: rgba(255, 255, 255, 0.7);
	border: none;
	border-radius: 50%;
	width: 44px;
	height: 44px;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	backdrop-filter: blur(6px);
	-webkit-backdrop-filter: blur(6px);
	transition: background 0.2s, transform 0.2s;
}

.showcase-nav:hover {
	background: rgba(255, 255, 255, 0.92);
	transform: translateY(-50%) scale(1.06);
}

.showcase-nav:focus-visible {
	outline: 2px solid white;
	outline-offset: 2px;
	background: rgba(255, 255, 255, 0.92);
}

.showcase-nav-prev {
	left: 16px;
}

.showcase-nav-next {
	right: 16px;
}

.showcase-nav-icon {
	width: 20px;
	height: 20px;
	fill: none;
	stroke: var(--cool-gray-700);
	stroke-width: 2;
	stroke-linecap: round;
	stroke-linejoin: round;
}

/* ── Login panel ── */

.login-panel-shell {
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 40px 36px;
	background:
		radial-gradient(circle at top right, rgba(255, 255, 255, 0.62), transparent 34%),
		linear-gradient(180deg, rgba(225, 232, 238, 0.86), rgba(211, 220, 228, 0.7));
}

.login-form-container {
	width: min(100%, 430px);
	padding: 34px 34px 30px;
	border-radius: var(--radius-xl);
	background: linear-gradient(180deg, var(--surface-strong), var(--surface));
	border: 1px solid var(--surface-border);
	box-shadow: var(--shadow-soft);
	backdrop-filter: blur(18px) saturate(125%);
	-webkit-backdrop-filter: blur(18px) saturate(125%);
}

.login-form-container h1 {
	margin: 0;
	font-size: clamp(2rem, 4vw, 2.75rem);
	line-height: 1;
	font-weight: 700;
	letter-spacing: -0.04em;
	color: var(--spib-green-deep);
}

.login-form-container p.subtitle {
	margin: 12px 0 30px;
	padding: 0;
	font-size: 0.98rem;
	line-height: 1.55;
	color: var(--cool-gray-700);
}

/* ── Form elements ── */

.login-form-container .form-group {
	margin-bottom: 16px;
}

.login-form-container label {
	display: block;
	margin: 0 0 8px;
	font-size: 0.88rem;
	font-weight: 600;
	letter-spacing: 0.02em;
	color: var(--cool-gray-700);
}

.login-form-container input[type="text"],
.login-form-container input[type="password"] {
	width: 100%;
	height: 54px;
	padding: 0 16px;
	border-radius: 16px;
	border: 1px solid rgba(131, 144, 157, 0.28);
	background: rgba(255, 255, 255, 0.78);
	box-sizing: border-box;
	font-size: 1rem;
	color: var(--cool-gray-900);
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
	transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, transform 0.25s ease;
}

.login-form-container input[type="text"]:focus,
.login-form-container input[type="password"]:focus {
	outline: none;
	border-color: rgba(31, 87, 51, 0.58);
	background: rgba(255, 255, 255, 0.92);
	box-shadow: 0 0 0 4px var(--spib-green-soft);
	transform: translateY(-1px);
}

/* ── Primary button ── */

.login-form-container .btn-primary,
.login-form-container .btn-primary:hover,
.login-form-container .btn-primary:focus {
	width: 100%;
	margin-top: 14px;
	padding: 16px 22px;
	border: none;
	border-radius: 999px;
	background: linear-gradient(135deg, var(--spib-green) 0%, #295f3b 100%);
	color: #fff;
	font-size: 0.98rem;
	font-weight: 700;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	cursor: pointer;
	box-shadow: 0 18px 30px rgba(31, 87, 51, 0.25);
	transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.login-form-container .btn-primary:hover,
.login-form-container .btn-primary:focus {
	transform: translateY(-1px);
	box-shadow: 0 22px 34px rgba(31, 87, 51, 0.28);
	filter: brightness(1.02);
}

.login-form-container .btn-primary:disabled {
	opacity: 0.78;
	cursor: progress;
	transform: none;
	box-shadow: 0 14px 24px rgba(31, 87, 51, 0.18);
}

/* ── Auth links ── */

.login-form-container .auth-links {
	margin-top: 22px;
	text-align: center;
	font-size: 0.9rem;
	color: var(--cool-gray-500);
}

.login-form-container .auth-links a {
	color: var(--spib-green);
}

.login-form-container .auth-links a:hover,
.login-form-container .auth-links a:focus {
	opacity: 0.8;
}

.login-form-container .auth-links .separator {
	margin: 0 10px;
	color: var(--cool-gray-500);
}

/* ── Flash / error messages ── */

.flash-error {
	background: rgba(193, 64, 29, 0.92);
	color: #fff;
	padding: 12px 20px;
	margin: 0 0 16px;
	border-radius: 18px;
	text-align: center;
	box-shadow: var(--shadow-soft);
}

.flash-error p {
	margin: 0;
}

.message-box {
	max-width: 430px;
	margin: 0 auto 20px;
	border: 0;
	border-radius: 18px;
	box-shadow: var(--shadow-soft);
}

.message-box.error {
	background: rgba(193, 64, 29, 0.92);
	color: #fff;
}

.message-box.warning {
	background: rgba(255, 248, 220, 0.92);
	color: var(--cool-gray-900);
}

/* Override SSP default button styles */
.pure-button-red {
	background-color: var(--spib-green);
}

.pure-button-red:hover {
	background-color: var(--spib-green-deep);
}

/* ── Footer ── */

#footer,
#foot {
	background: none;
	border: none;
	padding: 18px 0 0;
	color: var(--cool-gray-700);
}

#footer {
	height: auto;
	padding-top: 0;
	text-align: center;
}

#footer .footer-inner {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 8px 18px;
	padding: 0 12px 18px;
	font-size: 1rem;
	letter-spacing: 0.01em;
	line-height: 1.45;
}

#footer p {
	margin: 0;
	padding: 0;
}

#footer a,
#footer a:visited {
	color: var(--spib-green);
}

#footer a:hover,
#footer a:focus,
#footer a:visited:hover,
#footer a:visited:focus {
	color: var(--spib-green-deep);
	background: transparent;
	padding: 0;
}

/* Footer social links */
.footer-social-links {
	display: flex;
	justify-content: center;
	gap: 12px;
	margin-top: 6px;
}

.footer-social-link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	border-radius: 50%;
	background: var(--spib-green-soft);
	transition: background 0.2s, transform 0.2s;
}

.footer-social-link:hover {
	background: rgba(31, 87, 51, 0.3);
	transform: translateY(-1px);
}

.footer-social-mark {
	font-weight: 700;
	font-size: 0.85rem;
	color: var(--spib-green);
	line-height: 1;
}

.footer-social-svg {
	width: 18px;
	height: 18px;
	fill: var(--spib-green);
}

/* ── Accessibility ── */

.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* ── Animations ── */

@keyframes showcase-fade {
	0% { opacity: 0; transform: scale(1.04); }
	0.6% { opacity: 1; }
	5.2% { opacity: 1; transform: scale(1.08); }
	5.88% { opacity: 0; transform: scale(1.1); }
	100% { opacity: 0; transform: scale(1.1); }
}

/* ── Responsive ── */

@media (max-width: 1080px) {
	#layout {
	padding: 0;
	}

	.login-experience {
		grid-template-columns: 1fr;
		min-height: auto;
	}

	.login-showcase {
		min-height: 320px;
	}

	.showcase-frame {
		border-right: none;
		border-bottom: 1px solid rgba(255, 255, 255, 0.18);
	}

	.login-panel-shell {
		padding: 28px 24px 32px;
	}
}

@media (max-width: 640px) {
	#layout {
		padding: 14px;
	}

	#content {
		padding-top: 16px;
	}

	#header #logo {
		padding: 12px 14px;
	}

	#header #logo img {
		height: 28px;
	}

	#header {
		flex-wrap: wrap;
	}

	.return-home-link,
	.return-home-link:visited {
		width: 100%;
		padding: 12px 16px;
	}

	.return-home-link:hover,
	.return-home-link:focus,
	.return-home-link:visited:hover,
	.return-home-link:visited:focus {
		padding: 12px 16px;
	}

	.login-experience {
		border-radius: 28px;
	}

	.login-showcase {
		min-height: 220px;
	}

	.login-panel-shell {
		padding: 18px;
	}

	.login-form-container {
		padding: 26px 22px 24px;
		border-radius: 24px;
	}

	.login-form-container h1 {
		font-size: 1.85rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.showcase-slide,
	.login-form-container input[type="text"],
	.login-form-container input[type="password"],
	.login-form-container .btn-primary {
		animation: none;
		transition: none;
	}

	.showcase-slide:first-child {
		opacity: 1;
		transform: none;
	}
}