/*
 * Student Hub — full-bleed portal, dynamic tracker.
 * Builds on the variables defined in uacrm-public.css.
 */

.uacrm-hub {
	/* Contained by default. The full-bleed offset is measured in JS and applied
	   as inline styles, because 100vw includes the scrollbar and overflows. */
	width: 100%;
	max-width: 100%;
	margin: 0 auto;
	padding: 0 clamp(16px, 4vw, 56px) 72px;
	min-height: 100vh;
	background:
		radial-gradient(1200px 420px at 12% -8%, rgba(18, 38, 63, 0.06), transparent 60%),
		var(--uacrm-paper);
	box-sizing: border-box;
}

/* Inner content stays readable on very wide screens. */
.uacrm-hub > * {
	max-width: 1440px;
	margin-left: auto;
	margin-right: auto;
}

/* Nothing inside the hub may push the page sideways. */
.uacrm-hub,
.uacrm-hub * {
	min-width: 0;
}

.uacrm-hub-auth { padding-bottom: 60px; }

/* ---------- Top bar ---------- */

.uacrm-hub-bar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
	flex-wrap: wrap;
	padding: 26px 0 20px;
	border-bottom: 1px solid var(--uacrm-line);
	margin-bottom: 26px;
}

.uacrm-hub-name {
	font-family: var(--uacrm-serif);
	font-size: clamp(26px, 3.4vw, 38px);
	line-height: 1.1;
	margin: 4px 0 0;
	font-weight: 600;
	color: var(--uacrm-ink);
}

.uacrm-hub-user { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.uacrm-hub-hello { font-size: 13px; color: var(--uacrm-muted); }

/* ---------- Application switcher ---------- */

.uacrm-hub-switcher { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }

.uacrm-hub-switcher a {
	display: block;
	padding: 10px 16px;
	border: 1px solid var(--uacrm-line);
	border-radius: var(--uacrm-radius);
	background: var(--uacrm-white);
	text-decoration: none;
	color: var(--uacrm-ink-soft);
	min-width: 200px;
}

.uacrm-hub-switcher a.is-current { border-color: var(--uacrm-ink); border-left: 3px solid var(--uacrm-brass); color: var(--uacrm-ink); }
.uacrm-hub-switcher strong { display: block; font-size: 14px; }
.uacrm-hub-switcher span { font-family: var(--uacrm-mono); font-size: 12px; color: var(--uacrm-muted); }

/* ---------- Tracker ---------- */

.uacrm-tracker {
	background: var(--uacrm-white);
	border: 1px solid var(--uacrm-line);
	border-top: 3px solid var(--uacrm-brass);
	border-radius: var(--uacrm-radius);
	padding: clamp(22px, 3vw, 34px);
	margin-bottom: 22px;
}

.uacrm-tracker-top {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	gap: 22px;
	flex-wrap: wrap;
	margin-bottom: 26px;
}

.uacrm-tracker-label { font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--uacrm-brass); font-weight: 700; }
.uacrm-tracker-course { font-family: var(--uacrm-serif); font-size: clamp(20px, 2.4vw, 27px); margin: 6px 0 8px; font-weight: 600; }
.uacrm-tracker-meta { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; margin: 0; font-size: 13px; color: var(--uacrm-muted); }
.uacrm-tracker-meta code { font-family: var(--uacrm-mono); background: var(--uacrm-paper); border: 1px dashed var(--uacrm-brass); padding: 3px 9px; border-radius: 3px; color: var(--uacrm-ink); }
.uacrm-tracker-status { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* Gauge */

.uacrm-tracker-gauge { display: flex; align-items: center; gap: 20px; margin-bottom: 30px; flex-wrap: wrap; }
.uacrm-gauge-track { flex: 1 1 260px; height: 10px; background: var(--uacrm-line); border-radius: 999px; overflow: hidden; }
.uacrm-gauge-fill { display: block; height: 100%; background: linear-gradient(90deg, var(--uacrm-ink) 0%, var(--uacrm-brass) 100%); transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1); }
.uacrm-gauge-readout { display: flex; align-items: baseline; gap: 4px; }
.uacrm-gauge-number { font-family: var(--uacrm-serif); font-size: 32px; line-height: 1; color: var(--uacrm-ink); }
.uacrm-gauge-readout > span { font-size: 15px; color: var(--uacrm-muted); }
.uacrm-gauge-caption { margin-left: 12px; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--uacrm-muted); }

/* Rail */

.uacrm-rail {
	list-style: none;
	display: flex;
	margin: 0 0 26px;
	padding: 0;
	gap: 0;
	counter-reset: rail;
	overflow-x: auto;
	scrollbar-width: thin;
}

.uacrm-rail-item {
	position: relative;
	flex: 1 0 128px;
	padding: 40px 12px 0 0;
	text-align: left;
}

.uacrm-rail-item::before {
	content: "";
	position: absolute;
	top: 15px;
	left: 0;
	right: 0;
	height: 2px;
	background: var(--uacrm-line);
}

.uacrm-rail-item:last-child::before { right: 50%; }
.uacrm-rail-item.is-done::before,
.uacrm-rail-item.is-current::before { background: var(--uacrm-dot, var(--uacrm-ink)); }

.uacrm-rail-node {
	position: absolute;
	top: 3px;
	left: 0;
	width: 26px;
	height: 26px;
	border-radius: 50%;
	background: var(--uacrm-white);
	border: 2px solid var(--uacrm-line);
	color: var(--uacrm-muted);
	font-size: 12px;
	font-weight: 700;
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 1;
	transition: transform 0.3s ease;
}

.uacrm-rail-item.is-done .uacrm-rail-node { background: var(--uacrm-dot, var(--uacrm-ink)); border-color: var(--uacrm-dot, var(--uacrm-ink)); color: #fff; }
.uacrm-rail-item.is-current .uacrm-rail-node {
	background: var(--uacrm-dot, var(--uacrm-brass));
	border-color: var(--uacrm-dot, var(--uacrm-brass));
	color: #fff;
	transform: scale(1.18);
	box-shadow: 0 0 0 6px rgba(185, 138, 46, 0.18);
}

.uacrm-rail-label { display: block; font-size: 13px; line-height: 1.35; color: var(--uacrm-muted); padding-right: 8px; }
.uacrm-rail-item.is-current .uacrm-rail-label { color: var(--uacrm-ink); font-weight: 700; }
.uacrm-rail-item.is-done .uacrm-rail-label { color: var(--uacrm-ink-soft); }

/* Current stage callout */

.uacrm-tracker-now { border-left: 3px solid var(--uacrm-brass); background: var(--uacrm-paper); border-radius: var(--uacrm-radius); padding: 16px 18px; }
.uacrm-tracker-now p { margin: 0; color: var(--uacrm-ink-soft); max-width: 80ch; }
.uacrm-tracker-personal { margin-top: 10px !important; padding-top: 10px; border-top: 1px dashed var(--uacrm-line); color: var(--uacrm-ink) !important; }

/* Fullscreen mode */

.uacrm-tracker:fullscreen {
	background: var(--uacrm-white);
	padding: clamp(28px, 6vw, 90px);
	display: flex;
	flex-direction: column;
	justify-content: center;
	overflow-y: auto;
}

.uacrm-tracker:fullscreen .uacrm-rail-item { flex-basis: 160px; }
.uacrm-tracker:fullscreen .uacrm-gauge-number { font-size: 54px; }
.uacrm-tracker:fullscreen .uacrm-tracker-course { font-size: clamp(28px, 4vw, 46px); }

/* ---------- Stats strip ---------- */

.uacrm-hub-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 26px; }
.uacrm-hub-stat { background: var(--uacrm-white); border: 1px solid var(--uacrm-line); border-radius: var(--uacrm-radius); padding: 16px 18px; }
.uacrm-hub-stat-num { display: block; font-family: var(--uacrm-serif); font-size: 24px; line-height: 1.1; color: var(--uacrm-ink); }
.uacrm-hub-stat span:last-child { font-size: 12px; color: var(--uacrm-muted); }

/* ---------- Tabs ---------- */

.uacrm-hub-tabs { display: flex; gap: 4px; flex-wrap: wrap; border-bottom: 1px solid var(--uacrm-line); margin-bottom: 22px; }

.uacrm-hub-tab {
	background: none;
	border: 0;
	border-bottom: 3px solid transparent;
	padding: 12px 18px;
	font-family: inherit;
	font-size: 15px;
	color: var(--uacrm-muted);
	cursor: pointer;
}

.uacrm-hub-tab.is-active { color: var(--uacrm-ink); border-bottom-color: var(--uacrm-brass); font-weight: 600; }
.uacrm-hub-tab:focus-visible { outline: 3px solid var(--uacrm-brass); outline-offset: -3px; }

.uacrm-hub-panel { display: none; background: var(--uacrm-white); border: 1px solid var(--uacrm-line); border-radius: var(--uacrm-radius); padding: clamp(20px, 3vw, 30px); }
.uacrm-hub-panel.is-active { display: block; }
.uacrm-hub-panel .uacrm-subhead:first-child { margin-top: 0; }

/* ---------- Auth ---------- */

.uacrm-auth-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--uacrm-line); margin-bottom: 22px; }

.uacrm-auth-tab {
	background: none;
	border: 0;
	border-bottom: 3px solid transparent;
	padding: 12px 18px;
	font-family: inherit;
	font-size: 15px;
	color: var(--uacrm-muted);
	cursor: pointer;
}

.uacrm-auth-tab.is-active { color: var(--uacrm-ink); border-bottom-color: var(--uacrm-brass); font-weight: 600; }

.uacrm-auth-panel { display: none; border: 1px solid var(--uacrm-line); border-radius: var(--uacrm-radius); background: var(--uacrm-white); padding: 26px 28px; max-width: 560px; }
.uacrm-auth-panel.is-active { display: block; }
.uacrm-auth-intro { margin: 0 0 16px; color: var(--uacrm-ink-soft); font-size: 14px; }
.uacrm-auth-panel .uacrm-field { margin-bottom: 14px; }
.uacrm-shell input[type="password"] { width: 100%; padding: 10px 12px; border: 1px solid var(--uacrm-line); border-radius: var(--uacrm-radius); font-family: inherit; font-size: 15px; }
.uacrm-link { color: var(--uacrm-ink); font-size: 14px; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
	.uacrm-hub-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
	.uacrm-hub { padding-left: 16px; padding-right: 16px; }
	.uacrm-rail-item { flex-basis: 112px; }
	.uacrm-gauge-caption { margin-left: 0; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
	.uacrm-gauge-fill { transition: none; }
	.uacrm-rail-item.is-current .uacrm-rail-node { transform: none; }
}