:root {
	--brand-deep: #1a0303e8;
	--brand-sea: #6f270f;
	--brand-gold: #d4aa47;
	--brand-ink: #1a0303e8;
	--brand-soft: #f4f8fa;
	--brand-sand: #f2e5c7;
	--surface: #ffffff;
	--text-main: #1a0303e8;
	--text-muted: #75584e;
	--shadow-soft: 0 18px 45px rgba(17, 54, 74, 0.14);
	--radius-lg: 1.25rem;
	--radius-xl: 1.8rem;
}

* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	min-height: 100%;
}

body {
	font-family: "Work Sans", sans-serif;
	color: var(--text-main);
	background: radial-gradient(circle at 8% 8%, #f6efe0 0, #f7fafb 38%, #eef5f8 100%);
}

h1,
h2,
h3,
h4,
h5,
h6 {
	font-family: "Merriweather", serif;
	color: var(--brand-deep);
}

a {
	color: var(--brand-sea);
}

a:hover {
	color: var(--brand-deep);
}

.background-atmosphere {
	position: fixed;
	inset: 0;
	overflow: hidden;
	z-index: -1;
	pointer-events: none;
}

.orb {
	position: absolute;
	border-radius: 50%;
	filter: blur(0.5px);
	opacity: 0.65;
}

.orb-a {
	width: 320px;
	height: 320px;
	background: radial-gradient(circle, #f5d986 0, rgba(245, 217, 134, 0) 68%);
	top: -80px;
	left: -90px;
}

.orb-b {
	width: 380px;
	height: 380px;
	background: radial-gradient(circle, #8ac4cf 0, rgba(138, 196, 207, 0) 65%);
	right: -120px;
	top: 18%;
}

.orb-c {
	width: 420px;
	height: 420px;
	background: radial-gradient(circle, #bddae2 0, rgba(189, 218, 226, 0) 70%);
	bottom: -180px;
	left: 35%;
}

.site-main {
	padding-top: 100px;
	position: relative;
	z-index: 1;
}

.navbar-seminario {
	background: rgba(255, 255, 255, 0.9);
	border-bottom: 1px solid rgba(15, 93, 117, 0.1);
	backdrop-filter: blur(12px);
	transition: all 0.3s ease;
}

.navbar-seminario.navbar-scrolled {
	box-shadow: 0 10px 30px rgba(12, 58, 80, 0.13);
	background: rgba(255, 255, 255, 0.97);
}

.navbar-brand {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	color: var(--brand-deep);
}

.navbar-brand:hover {
	color: var(--brand-deep);
}

.brand-mark {
	width: 40px;
	height: 40px;
	border-radius: 11px;
	display: grid;
	place-items: center;
	color: #fff;
	font-weight: 700;
	background: linear-gradient(135deg, var(--brand-deep), var(--brand-sea));
}

.brand-copy {
	display: flex;
	flex-direction: column;
	line-height: 1.1;
}

.brand-copy small {
	color: var(--text-muted);
	font-size: 0.74rem;
}

.nav-link {
	font-weight: 600;
	color: var(--brand-ink);
	transition: color 0.25s ease;
}

.nav-link:hover,
.nav-link:focus {
	color: var(--brand-sea);
}

.btn-brand {
	border: 0;
	font-weight: 600;
	color: #fff;
	background: linear-gradient(135deg, var(--brand-deep), var(--brand-sea));
	box-shadow: 0 10px 24px rgba(15, 93, 117, 0.25);
}

.btn-brand:hover,
.btn-brand:focus {
	color: #fff;
	background: linear-gradient(135deg, #0a2937, #0f5266);
}

.btn-outline-brand {
	border: 1px solid rgba(11, 49, 66, 0.4);
	color: var(--brand-deep);
}

.btn-outline-brand:hover,
.btn-outline-brand:focus {
	border-color: transparent;
	color: #fff;
	background: linear-gradient(135deg, var(--brand-deep), var(--brand-sea));
}

.soft-badge {
	border-radius: 999px;
	color: var(--brand-deep);
	background: linear-gradient(90deg, rgba(212, 170, 71, 0.25), rgba(138, 196, 207, 0.24));
	padding: 0.55rem 1rem;
	font-weight: 600;
	letter-spacing: 0.02em;
}

.section-kicker {
	text-transform: uppercase;
	letter-spacing: 0.1em;
	font-weight: 700;
	color: var(--brand-sea);
	font-size: 0.78rem;
}

.speaker-image-placeholder {
	border: 2px dashed rgba(15, 93, 117, 0.28);
	border-radius: var(--radius-lg);
	min-height: 300px;
	display: grid;
	place-items: center;
	text-align: center;
	color: var(--text-muted);
	background:
		linear-gradient(165deg, rgba(212, 170, 71, 0.13), rgba(255, 255, 255, 0.95));
	padding: 1.2rem;
	font-weight: 600;
}

.site-footer {
	margin-top: 3rem;
	border-top: 1px solid rgba(15, 93, 117, 0.15);
	background: rgba(255, 255, 255, 0.68);
	backdrop-filter: blur(6px);
}

.footer-title {
	letter-spacing: 0.08em;
	font-weight: 700;
	color: var(--brand-ink);
}

.reveal {
	opacity: 0;
	transform: translateY(24px);
	transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
	opacity: 1;
	transform: translateY(0);
}

@media (max-width: 991.98px) {
	.site-main {
		padding-top: 88px;
	}

	.navbar-seminario {
		background: rgba(255, 255, 255, 0.96);
	}

	.navbar-nav {
		gap: 0.35rem;
		margin-top: 0.5rem;
	}
}

@media (max-width: 575.98px) {
	.orb-a,
	.orb-b,
	.orb-c {
		transform: scale(0.75);
	}

	.brand-copy strong {
		font-size: 0.95rem;
	}
}