:root {
	--bg: #070707;
	--bg-soft: #121212;
	--panel: rgba(255, 255, 255, 0.04);
	--panel-strong: rgba(255, 255, 255, 0.08);
	--line: rgba(255, 255, 255, 0.18);
	--text: #f4f4f4;
	--muted: #bcbcbc;
	--ok: #d9d9d9;
	--radius: 14px;
	--shadow: 0 22px 42px rgba(0, 0, 0, 0.45);
}

* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	min-height: 100%;
	min-height: 100dvh;
	background:
		radial-gradient(circle at 10% -10%, rgba(255, 255, 255, 0.12), transparent 36%),
		radial-gradient(circle at 100% 0%, rgba(255, 255, 255, 0.06), transparent 40%),
		linear-gradient(165deg, #0d0d0d 0%, #040404 55%, #121212 100%);
	color: var(--text);
	font-family: "Space Grotesk", "Segoe UI", sans-serif;
	-webkit-text-size-adjust: 100%;
}

body::before {
	content: "";
	position: fixed;
	inset: 0;
	pointer-events: none;
	z-index: 0;
	opacity: 0.25;
	background-image:
		linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
		linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
	background-size: 28px 28px;
}

.app {
	position: relative;
	z-index: 1;
	width: min(1180px, calc(100% - 1.25rem));
	margin: 1rem auto 2rem;
	padding-left: max(0px, env(safe-area-inset-left));
	padding-right: max(0px, env(safe-area-inset-right));
	padding-bottom: max(0px, env(safe-area-inset-bottom));
	display: grid;
	gap: 1rem;
}

.hero {
	display: grid;
	grid-template-columns: 1.5fr 1fr;
	gap: 1rem;
	padding: 1.2rem;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background: linear-gradient(180deg, rgba(25, 25, 25, 0.75), rgba(7, 7, 7, 0.92));
	box-shadow: var(--shadow);
	animation: rise 360ms ease both;
}

.title-tag {
	font-size: 0.76rem;
	text-transform: uppercase;
	letter-spacing: 0.2em;
	color: var(--muted);
	margin: 0;
}

.hero h1 {
	margin: 0.35rem 0 0;
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: clamp(2.2rem, 6.8vw, 5.2rem);
	letter-spacing: 0.06em;
	line-height: 0.94;
}

.hero p {
	margin: 0.75rem 0 0;
	max-width: 46rem;
	color: var(--muted);
}

.hero-meta {
	display: grid;
	gap: 0.65rem;
	align-content: start;
}

.meta-card {
	padding: 0.75rem;
	border: 1px solid var(--line);
	border-radius: 12px;
	background: var(--panel);
}

.meta-card span {
	display: block;
	font-size: 0.72rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--muted);
}

.meta-card strong {
	font-size: 1.25rem;
}

.nav {
	display: flex;
	gap: 0.55rem;
	flex-wrap: wrap;
}

.nav {
	overflow-x: auto;
	overscroll-behavior-x: contain;
	-webkit-overflow-scrolling: touch;
	padding-bottom: 0.15rem;
}

.nav button {
	flex: 0 0 auto;
}

.nav button,
.btn,
input,
select,
textarea {
	font: inherit;
}

.nav button,
.btn {
	padding: 0.62rem 0.85rem;
	border: 1px solid var(--line);
	border-radius: 10px;
	background: var(--panel);
	color: var(--text);
	text-transform: uppercase;
	letter-spacing: 0.07em;
	font-size: 0.8rem;
	cursor: pointer;
	min-height: 46px;
}

.nav button.is-active,
.btn.primary {
	background: #f3f3f3;
	border-color: #f3f3f3;
	color: #101010;
	font-weight: 700;
}

.nav button:hover,
.btn:hover {
	background: var(--panel-strong);
}

.layout {
	display: grid;
	grid-template-columns: 1.35fr 1fr;
	gap: 1rem;
}

.panel {
	padding: 1rem;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background: linear-gradient(180deg, rgba(24, 24, 24, 0.78), rgba(7, 7, 7, 0.9));
	box-shadow: var(--shadow);
	animation: rise 420ms ease both;
}

.panel h2 {
	margin: 0 0 0.45rem;
	font-size: 1.22rem;
	text-transform: uppercase;
	letter-spacing: 0.08em;
}

.panel p.kicker {
	margin: 0;
	font-size: 0.72rem;
	text-transform: uppercase;
	letter-spacing: 0.16em;
	color: var(--muted);
}

.grid-2 {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0.75rem;
}

.school-select-wrap {
	display: grid;
	gap: 0.6rem;
	margin-bottom: 0.75rem;
}

.school-select-wrap select {
	width: 100%;
	min-height: 48px;
}

.school-select-wrap input {
	width: 100%;
	min-height: 44px;
}

.school-select-wrap label {
	color: var(--text);
	font-size: 0.9rem;
	letter-spacing: 0.06em;
}

.stat {
	padding: 0.75rem;
	border: 1px solid var(--line);
	border-radius: 10px;
	background: var(--panel);
}

.stat span {
	display: block;
	font-size: 0.72rem;
	text-transform: uppercase;
	letter-spacing: 0.14em;
	color: var(--muted);
}

.stat strong {
	display: block;
	margin-top: 0.2rem;
	font-size: 1.15rem;
}

label {
	display: grid;
	gap: 0.35rem;
	font-size: 0.83rem;
	letter-spacing: 0.04em;
	color: var(--muted);
}

input,
select,
textarea {
	padding: 0.68rem 0.75rem;
	border: 1px solid var(--line);
	border-radius: 10px;
	background: rgba(255, 255, 255, 0.03);
	color: var(--text);
	min-height: 46px;
}

textarea {
	min-height: 102px;
	resize: vertical;
}

form {
	display: grid;
	gap: 0.65rem;
}

.inline {
	display: flex;
	gap: 0.55rem;
	flex-wrap: wrap;
}

.list {
	display: grid;
	gap: 0.6rem;
	margin-top: 0.75rem;
}

.item {
	padding: 0.7rem;
	border: 1px solid var(--line);
	border-radius: 10px;
	background: var(--panel);
	display: grid;
	gap: 0.3rem;
}

.item.item-admin {
	grid-template-columns: 1fr auto;
	align-items: center;
	column-gap: 0.75rem;
}

.item.item-admin p {
	margin: 0.18rem 0 0;
}

.item.item-admin .btn {
	min-width: 110px;
}

.item.is-active {
	border-color: rgba(255, 255, 255, 0.62);
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.03));
}

.campus-post {
	gap: 0.45rem;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
}

.campus-messenger-grid {
	display: grid;
	grid-template-columns: minmax(210px, 0.9fr) minmax(0, 1.3fr);
	gap: 0.8rem;
	align-items: start;
	margin-top: 0.55rem;
}

.campus-thread-msg {
	max-width: 88%;
	background: rgba(255, 255, 255, 0.04);
	border-color: rgba(255, 255, 255, 0.24);
}

.campus-thread-msg.mine {
	margin-left: auto;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.17), rgba(255, 255, 255, 0.06));
	border-color: rgba(255, 255, 255, 0.44);
}

.campus-directory-item {
	gap: 0.4rem;
}

.campus-rating-pill {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 2.5rem;
	padding: 0.26rem 0.48rem;
	border-radius: 999px;
	border: 1px solid rgba(255, 255, 255, 0.36);
	font-size: 0.8rem;
	font-weight: 700;
	letter-spacing: 0.06em;
	background: rgba(255, 255, 255, 0.08);
}

.item.item-admin-message {
	gap: 0.5rem;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
}

.item.item-admin-message .item-head {
	align-items: center;
}

.item.item-admin-message .btn {
	min-width: 104px;
}

#admin-schools-list .item-admin {
	grid-template-columns: 1fr auto;
	gap: 0.75rem;
	align-items: center;
}

.school-pill {
	display: inline-flex;
	align-items: center;
	padding: 0.3rem 0.55rem;
	border-radius: 999px;
	border: 1px solid var(--line);
	background: rgba(255, 255, 255, 0.04);
	font-size: 0.74rem;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--muted);
}

.admin-sql-panel textarea {
	min-height: 180px;
	font-family: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
	line-height: 1.5;
	letter-spacing: 0.01em;
}

.sql-result {
	margin-top: 0.75rem;
	padding: 0.8rem;
	border: 1px solid var(--line);
	border-radius: 10px;
	background: rgba(255, 255, 255, 0.03);
	min-height: 72px;
	overflow: auto;
	font-family: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
	font-size: 0.82rem;
	line-height: 1.5;
	white-space: pre-wrap;
	word-break: break-word;
	color: var(--text);
}

.sql-result .sql-table {
	width: 100%;
	border-collapse: collapse;
	margin-top: 0.5rem;
}

.sql-result .sql-table th,
.sql-result .sql-table td {
	border: 1px solid rgba(255, 255, 255, 0.12);
	padding: 0.45rem 0.5rem;
	text-align: left;
	vertical-align: top;
	font-size: 0.78rem;
}

.sql-result .sql-table th {
	background: rgba(255, 255, 255, 0.06);
	position: sticky;
	top: 0;
}

.admin-sql-panel textarea {
	min-height: 180px;
	font-family: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
	line-height: 1.5;
	letter-spacing: 0.01em;
}

.sql-result {
	margin-top: 0.75rem;
	padding: 0.8rem;
	border: 1px solid var(--line);
	border-radius: 10px;
	background: rgba(255, 255, 255, 0.03);
	min-height: 72px;
	overflow: auto;
	font-family: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
	font-size: 0.82rem;
	line-height: 1.5;
	white-space: pre-wrap;
	word-break: break-word;
	color: var(--text);
}

.sql-result .sql-table {
	width: 100%;
	border-collapse: collapse;
	margin-top: 0.5rem;
}

.sql-result .sql-table th,
.sql-result .sql-table td {
	border: 1px solid rgba(255, 255, 255, 0.12);
	padding: 0.45rem 0.5rem;
	text-align: left;
	vertical-align: top;
	font-size: 0.78rem;
}

.sql-result .sql-table th {
	background: rgba(255, 255, 255, 0.06);
	position: sticky;
	top: 0;
}

.item-head {
	display: flex;
	justify-content: space-between;
	gap: 0.4rem;
	align-items: start;
}

.muted {
	color: var(--muted);
}

.small {
	font-size: 0.85rem;
}

.hidden {
	display: none !important;
}

.msg {
	margin-top: 0.45rem;
	padding: 0.65rem 0.7rem;
	border: 1px solid var(--line);
	border-radius: 10px;
	font-size: 0.9rem;
	color: var(--muted);
}

.msg.error {
	border-color: rgba(255, 255, 255, 0.32);
	color: #ffffff;
}

.rank {
	display: grid;
	grid-template-columns: auto 1fr auto;
	gap: 0.65rem;
	align-items: center;
	padding: 0.72rem;
	border: 1px solid var(--line);
	border-radius: 10px;
	background: var(--panel);
}

.rank-pos {
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: 1.25rem;
	letter-spacing: 0.06em;
	min-width: 2.2rem;
}

.rank-score {
	font-weight: 700;
}


.duel-arena {
	position: relative;
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	gap: 1.2rem;
	align-items: center;
	margin: 0.95rem 0;
	padding: 1.05rem;
	border: 1px solid rgba(255, 255, 255, 0.18);
	border-radius: 22px;
	background:
		radial-gradient(circle at center, rgba(255, 255, 255, 0.09), transparent 46%),
		linear-gradient(180deg, rgba(25, 25, 25, 0.86), rgba(8, 8, 8, 0.95));
	overflow: hidden;
	min-height: 430px;
}

.duel-arena::before {
	content: "";
	position: absolute;
	inset: 0;
	pointer-events: none;
	background-image: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.08) 50%, transparent 100%);
	background-size: 240% 100%;
	animation: arenaSweep 4.8s linear infinite;
}

.duel-card {
	position: relative;
	z-index: 1;
	display: grid;
	gap: 0.55rem;
	align-content: start;
	justify-items: start;
	text-align: left;
	padding: 1.3rem;
	border: 1px solid var(--line);
	border-radius: 22px;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
	color: var(--text);
	cursor: pointer;
	min-height: 390px;
	transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
	touch-action: manipulation;
}

.duel-card:hover:not(:disabled) {
	transform: translateY(-3px) scale(1.01);
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.03));
	border-color: rgba(255, 255, 255, 0.55);
	box-shadow: 0 14px 30px rgba(0, 0, 0, 0.45), 0 0 24px rgba(255, 255, 255, 0.14);
}

.duel-card:disabled {
	cursor: not-allowed;
	opacity: 0.65;
}

.duel-badge {
	font-size: 0.9rem;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--muted);
}

.duel-avatar {
	display: inline-grid;
	place-items: center;
	width: 4rem;
	height: 4rem;
	border-radius: 999px;
	border: 1px solid rgba(255, 255, 255, 0.5);
	background: rgba(255, 255, 255, 0.09);
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: 1.8rem;
	letter-spacing: 0.06em;
	box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.09), 0 0 12px rgba(255, 255, 255, 0.12);
}

.duel-core {
	position: relative;
	z-index: 1;
	display: grid;
	place-items: center;
	width: 5.2rem;
	height: 5.2rem;
	border-radius: 999px;
	border: 1px solid rgba(255, 255, 255, 0.45);
	background: rgba(255, 255, 255, 0.1);
	box-shadow: 0 0 24px rgba(255, 255, 255, 0.2);
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: 2rem;
	letter-spacing: 0.08em;
	animation: corePulse 1.9s ease-in-out infinite;
}

.duel-power {
	display: inline-flex;
	align-items: center;
	padding: 0.35rem 0.7rem;
	border-radius: 999px;
	border: 1px solid rgba(255, 255, 255, 0.33);
	font-size: 0.92rem;
	letter-spacing: 0.07em;
	text-transform: uppercase;
	color: #f5f5f5;
	background: rgba(255, 255, 255, 0.08);
}

.duel-card strong {
	font-size: clamp(1.4rem, 2.3vw, 2.3rem);
	line-height: 1.05;
	letter-spacing: 0.03em;
}

.duel-card .small {
	font-size: 1rem;
}


#teacher-ranking-list .rank {
	border-radius: 12px;
	border-color: rgba(255, 255, 255, 0.24);
	background:
		linear-gradient(90deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
	transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

#teacher-ranking-list .rank:hover {
	transform: translateX(3px);
	border-color: rgba(255, 255, 255, 0.55);
	background: linear-gradient(90deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.03));
}

#teacher-ranking-list .rank.rank-top {
	border-color: rgba(255, 255, 255, 0.62);
	background:
		radial-gradient(circle at 12% 50%, rgba(255, 255, 255, 0.2), transparent 32%),
		linear-gradient(90deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.03));
}

#teacher-ranking-list .rank.rank-top .rank-pos {
	text-shadow: 0 0 12px rgba(255, 255, 255, 0.35);
}

@keyframes arenaSweep {
	0% { background-position: 120% 0; }
	100% { background-position: -120% 0; }
}

@keyframes corePulse {
	0%, 100% { transform: scale(1); box-shadow: 0 0 18px rgba(255, 255, 255, 0.2); }
	50% { transform: scale(1.08); box-shadow: 0 0 30px rgba(255, 255, 255, 0.34); }
}

.footer-note {
	text-align: center;
	color: var(--muted);
	font-size: 0.85rem;
}

@keyframes rise {
	from {
		opacity: 0;
		transform: translateY(8px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

@media (max-width: 980px) {
	.hero,
	.layout {
		grid-template-columns: 1fr;
	}
}

@media (hover: none), (pointer: coarse) {
	.nav button:hover,
	.btn:hover,
	.duel-card:hover:not(:disabled) {
		transform: none;
		background: inherit;
		box-shadow: none;
	}

	.nav button:active,
	.btn:active,
	.duel-card:active {
		transform: scale(0.99);
	}

	.nav button,
	.btn,
	input,
	select,
	textarea {
		font-size: 16px;
	}
}

@media (min-width: 768px) and (max-width: 1180px) {
	.app {
		width: calc(100% - 1rem);
		margin-top: 0.7rem;
	}

	.hero {
		grid-template-columns: 1fr;
	}

	.layout {
		grid-template-columns: 1fr;
	}

	.panel {
		padding: 1.1rem;
	}

	.duel-arena {
		min-height: 300px;
		padding: 0.9rem;
	}

	.duel-card {
		min-height: 280px;
		padding: 1rem;
	}

	.duel-card strong {
		font-size: clamp(1.2rem, 2vw, 1.8rem);
	}
}

@media (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
	.duel-arena {
		grid-template-columns: 1fr;
		gap: 0.9rem;
	}

	.duel-core {
		width: 100%;
		height: 2.7rem;
		border-radius: 12px;
	}
}

@media (min-width: 1024px) and (max-width: 1366px) and (orientation: landscape) {
	.layout {
		grid-template-columns: 1fr 1fr;
	}

	#view-teacher.layout {
		grid-template-columns: 1fr;
	}

	.duel-arena {
		grid-template-columns: 1fr auto 1fr;
		min-height: 320px;
	}

	.duel-card {
		min-height: 300px;
	}
}

@media (max-width: 640px) {
	.app {
		width: calc(100% - 0.8rem);
		margin-top: 0.6rem;
	}
	.grid-2 {
		grid-template-columns: 1fr;
	}
	.duel-grid {
		grid-template-columns: 1fr;
	}
	.duel-arena {
		grid-template-columns: 1fr;
		min-height: 0;
	}
	.duel-core {
		width: 100%;
		height: 2.4rem;
		border-radius: 10px;
	}
	.campus-messenger-grid {
		grid-template-columns: 1fr;
	}
	.campus-thread-msg {
		max-width: 100%;
	}
	.hero {
		padding: 0.9rem;
	}
	.panel {
		padding: 0.85rem;
	}
}