:root {
	--color-bg: #f2f4f8;
	--color-card: #ffffff;
	--color-border: #e2e6ec;
	--color-primary: #2563eb;
	--color-primary-dark: #1d4ed8;
	--color-primary-soft: #eef2ff;
	--color-danger: #dc2626;
	--color-text: #1f2937;
	--color-muted: #6b7280;
	--color-present: #16a34a;
	--radius: 10px;
	--radius-sm: 7px;
	--shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
	--shadow-md: 0 4px 14px rgba(16, 24, 40, 0.08);
	--transition: 150ms ease;
}

* { box-sizing: border-box; }

body {
	margin: 0;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	background: var(--color-bg);
	color: var(--color-text);
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 0.5rem;
	padding: 0.7rem 1.25rem;
	background: var(--color-card);
	border-bottom: 1px solid var(--color-border);
	box-shadow: var(--shadow-sm);
	position: sticky;
	top: 0;
	z-index: 20;
}

.topbar .brand {
	font-weight: 700;
	font-size: 1.1rem;
	color: var(--color-text);
	letter-spacing: -0.01em;
}
.topbar .brand:hover { text-decoration: none; opacity: 0.85; }

.topbar nav {
	display: flex;
	align-items: center;
	gap: 0.35rem;
	flex-wrap: wrap;
}

.topbar nav > a,
.topbar nav > .profile-link,
.topbar nav > .inline-form > .link-button {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.4rem 0.7rem;
	border-radius: 999px;
	color: var(--color-text);
	font-size: 0.9rem;
	transition: background var(--transition), color var(--transition);
}
.topbar nav > a:hover,
.topbar nav > .profile-link:hover,
.topbar nav > .inline-form > .link-button:hover {
	background: var(--color-primary-soft);
	color: var(--color-primary-dark);
	text-decoration: none;
}

.lang-switch {
	font-size: 0.8rem;
	color: var(--color-muted);
	padding-left: 0.4rem;
	margin-left: 0.2rem;
	border-left: 1px solid var(--color-border);
}

.container {
	max-width: 960px;
	margin: 0 auto;
	padding: 1.25rem 1rem;
}

.card {
	background: var(--color-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	padding: 1.25rem;
	box-shadow: var(--shadow-sm);
}

.auth-card { max-width: 380px; margin: 2rem auto; }

.auth-card form, .auth-card label {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
	margin-bottom: 0.75rem;
}

input[type="email"], input[type="text"], input[type="password"], input[type="file"] {
	padding: 0.55rem 0.6rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	font-size: 1rem;
	transition: border-color var(--transition), box-shadow var(--transition);
}
input[type="email"]:focus, input[type="text"]:focus, input[type="password"]:focus {
	outline: none;
	border-color: var(--color-primary);
	box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 0.5rem 0.85rem;
	border-radius: var(--radius-sm);
	border: 1px solid var(--color-border);
	background: var(--color-card);
	color: var(--color-text);
	cursor: pointer;
	font-size: 0.9rem;
	transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), transform 100ms ease;
}

.btn.active, .btn:hover { background: var(--color-primary-soft); border-color: #c7d2fe; }
.btn:active { transform: scale(0.97); }

.btn-primary {
	background: var(--color-primary);
	border-color: var(--color-primary);
	color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); }

.btn-danger { color: var(--color-danger); border-color: var(--color-danger); }
.btn-danger:hover { background: #fee2e2; }

.link-button {
	background: none;
	border: none;
	padding: 0;
	color: var(--color-primary);
	cursor: pointer;
	font: inherit;
}

.inline-form { display: inline; margin: 0; }

.alert { padding: 0.6rem 0.8rem; border-radius: var(--radius-sm); font-size: 0.9rem; }
.alert-error { background: #fee2e2; color: #991b1b; }
.alert-success { background: #dcfce7; color: #166534; }

.notice {
	font-size: 0.85rem;
	color: var(--color-muted);
	margin-bottom: 0.75rem;
}

.calendar-toolbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 1rem;
	padding: 0.6rem 0.75rem;
	background: var(--color-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.view-switch, .nav-switch { display: flex; gap: 0.4rem; align-items: center; }
.nav-switch h2 { font-size: 1rem; margin: 0 0.4rem; white-space: nowrap; }

.week-row {
	display: flex;
	align-items: stretch;
	gap: 0.4rem;
	margin-bottom: 0.4rem;
}

.week-days {
	display: grid;
	grid-template-columns: repeat(5, 1fr);
	gap: 0.4rem;
	flex: 1;
	min-width: 0;
}

.week-apply-btn {
	flex: 0 0 auto;
	width: 2.6rem;
	height: 100%;
	padding: 0;
	font-size: 1.2rem;
	color: var(--color-muted);
}

.week-apply-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.week-actions { display: flex; flex-direction: row; align-items: stretch; gap: 0.4rem; flex: 0 0 auto; }

.week-clear-btn {
	width: 2.6rem;
	height: 100%;
	padding: 0;
	font-size: 1.1rem;
	color: var(--color-danger);
}

.week-clear-btn:disabled { opacity: 0.3; cursor: not-allowed; color: var(--color-muted); }

.day-cell {
	background: var(--color-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	padding: 0.5rem;
	min-height: 90px;
	cursor: pointer;
	position: relative;
	transition: box-shadow var(--transition), border-color var(--transition), transform 100ms ease;
}

.day-cell:hover { box-shadow: var(--shadow-md); border-color: #c7d2fe; transform: translateY(-1px); }
.day-cell.today { border-color: var(--color-primary); }
.day-cell.other-month { opacity: 0.45; }
.day-cell.present { background: #f0fdf4; border-color: #bbf7d0; }
.day-cell.absent { background: #fef2f2; border-color: #fecaca; }
.day-cell.read-only {
	cursor: default;
	opacity: 0.75;
}
.day-cell.read-only:hover { box-shadow: none; transform: none; border-color: var(--color-border); }

.day-head {
	display: flex;
	justify-content: space-between;
	font-size: 0.75rem;
	color: var(--color-muted);
	margin-bottom: 0.3rem;
}

.muted { color: var(--color-muted); font-size: 0.75rem; }

.person-list { list-style: none; margin: 0; padding: 0; font-size: 0.75rem; }
.person-list li { display: flex; align-items: center; gap: 0.3rem; line-height: 1.4; }
.person-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.day-absent {
	margin-top: 0.35rem;
	padding-top: 0.35rem;
	border-top: 1px dashed var(--color-border);
}
.absent-label { display: block; font-size: 0.65rem; color: #b91c1c; text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 0.15rem; font-weight: 600; }
.absent-person-list { opacity: 0.85; }

.day-noresponse {
	margin-top: 0.35rem;
	padding-top: 0.35rem;
	border-top: 1px dashed var(--color-border);
}
.noresponse-label { display: block; font-size: 0.65rem; color: var(--color-muted); text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 0.15rem; }
.noresponse-person-list { opacity: 0.5; font-style: italic; }

.avatar {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	flex-shrink: 0;
	object-fit: cover;
	color: #fff;
	font-weight: 600;
	line-height: 1;
}
.avatar-xs { width: 1.1rem; height: 1.1rem; font-size: 0.55rem; }
.avatar-sm { width: 1.6rem; height: 1.6rem; font-size: 0.7rem; }
.avatar-md { width: 2.5rem; height: 2.5rem; font-size: 1rem; }

.profile-link { display: inline-flex; align-items: center; gap: 0.4rem; }

.switch-label {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	font-size: 0.85rem;
	color: var(--color-muted);
}

.team-select {
	padding: 0.45rem 0.6rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	font-size: 0.85rem;
	background: var(--color-card);
	color: var(--color-text);
}

.team-empty-hint { font-size: 0.85rem; }

.team-membership-list { list-style: none; margin: 0 0 1rem; padding: 0; }
.team-membership-row {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	flex-wrap: wrap;
	padding: 0.5rem 0;
	border-bottom: 1px solid var(--color-border);
}
.team-name { font-weight: 600; }
.team-slug { font-size: 0.8rem; }

.join-team-form, .favorite-team-form {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
	margin-top: 0.75rem;
}

.popover-wrap { position: relative; display: inline-flex; align-items: stretch; }
.popover-panel {
	display: none;
	position: absolute;
	top: 100%;
	right: 0;
	margin-top: 0.4rem;
	background: var(--color-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	box-shadow: var(--shadow-md);
	padding: 0.65rem 0.75rem;
	font-size: 0.8rem;
	color: var(--color-text);
	width: 220px;
	z-index: 30;
}
.popover-panel.open { display: block; }
.popover-panel a { font-weight: 600; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.default-week-card { margin-top: 1rem; }

.weekday-toggles { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0.9rem 0 1.1rem; }
.day-toggle {
	position: relative;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 3.4rem;
	height: 3.4rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	background: var(--color-card);
	font-size: 0.8rem;
	font-weight: 600;
	color: var(--color-muted);
	cursor: pointer;
	user-select: none;
	transition: background var(--transition), border-color var(--transition), color var(--transition), transform 100ms ease, box-shadow var(--transition);
}
.day-toggle:hover { border-color: var(--color-primary); color: var(--color-primary-dark); }
.day-toggle input {
	position: absolute;
	inset: 0;
	margin: 0;
	opacity: 0;
	cursor: pointer;
}
.day-toggle:has(input:checked) {
	background: var(--color-primary);
	border-color: var(--color-primary);
	color: #fff;
	box-shadow: var(--shadow-sm);
	transform: translateY(-1px);
}
.day-toggle:has(input:focus-visible) { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.self-badge {
	position: absolute;
	bottom: 0.35rem;
	right: 0.4rem;
	font-size: 0.7rem;
	font-weight: 600;
}
.self-badge-present { color: var(--color-present); }
.self-badge-absent { color: var(--color-danger); }

.admin-list { list-style: none; margin: 0; padding: 0; }
.admin-row {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	flex-wrap: wrap;
	padding: 0.6rem 0.5rem;
	border-bottom: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	transition: background var(--transition);
}
.admin-row:hover { background: var(--color-bg); }
.admin-row-pending { background: #fffbeb; }
.admin-row-pending:hover { background: #fef3c7; }
.admin-name { font-weight: 600; }
.admin-email { color: var(--color-muted); font-size: 0.85rem; flex: 1; }

.badge {
	display: inline-flex;
	align-items: center;
	padding: 0.2rem 0.55rem;
	border-radius: 999px;
	font-size: 0.7rem;
	font-weight: 600;
}
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-admin { background: var(--color-primary-soft); color: var(--color-primary-dark); }

@media (max-width: 640px) {
	.view-month-link { display: none; }
	.view-week .week-days { grid-template-columns: 1fr; gap: 0.4rem; }
	.week-row { flex-direction: column; gap: 0.4rem; }
	.week-actions { flex-direction: row; width: 100%; }
	.popover-wrap { flex: 1; }
	.week-apply-btn { width: 100%; height: 2.6rem; font-size: 1rem; }
	.week-clear-btn { flex: 1; width: auto; height: 2.6rem; font-size: 0.95rem; }
	.day-cell { min-height: 68px; padding: 0.3rem; font-size: 0.8rem; }
	.person-list { max-height: 40px; overflow: hidden; }
	.calendar-toolbar { flex-direction: column; align-items: stretch; }
	.view-switch, .nav-switch { justify-content: center; }
	.nav-switch h2 { flex: 1; text-align: center; }
	.day-toggle { width: 2.6rem; height: 2.6rem; font-size: 0.7rem; }
}

.view-month .day-cell { min-height: 70px; }