/* Ultimate Dice Roller & Snake Challenge — scoped styles (prefix: udr-) */

.udr-root {
	--udr-bg: #ffffff;
	--udr-bg-soft: #f4f6fb;
	--udr-border: #e2e6f0;
	--udr-text: #1c2333;
	--udr-text-muted: #616b82;
	--udr-primary: #5b5bf6;
	--udr-primary-dark: #4444d6;
	--udr-accent: #ff8a3d;
	--udr-success: #22b573;
	--udr-danger: #e5484d;
	--udr-radius: 14px;
	--udr-radius-sm: 8px;
	--udr-shadow: 0 4px 18px rgba(30, 34, 60, 0.08);
	--udr-shadow-lg: 0 12px 32px rgba(30, 34, 60, 0.14);
	box-sizing: border-box;
	max-width: 980px;
	margin: 0 auto;
	padding: 0;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	color: var(--udr-text);
	line-height: 1.55;
}
.udr-root *, .udr-root *::before, .udr-root *::after { box-sizing: inherit; }
.udr-root img { max-width: 100%; }

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

/* ---------- Header ---------- */
.udr-header {
	background: linear-gradient(135deg, #5b5bf6 0%, #7c6cf6 55%, #ff8a3d 130%);
	border-radius: var(--udr-radius);
	padding: 28px 24px;
	margin-bottom: 16px;
	color: #fff;
}
.udr-header-inner { max-width: 720px; }
.udr-title { margin: 0 0 6px; font-size: clamp(22px, 3.2vw, 30px); font-weight: 800; letter-spacing: -0.02em; color: #fff; }
.udr-subtitle { margin: 0 0 16px; font-size: 15px; color: rgba(255,255,255,0.9); }
.udr-badges { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; }
.udr-badge {
	display: inline-flex; align-items: center; gap: 6px;
	background: rgba(255,255,255,0.16);
	border: 1px solid rgba(255,255,255,0.35);
	padding: 5px 12px;
	border-radius: 999px;
	font-size: 12.5px;
	font-weight: 600;
}
.udr-badge-icon { flex-shrink: 0; }

/* ---------- Ad slots ---------- */
.udr-ad-slot {
	margin: 16px 0;
	min-height: 0;
	text-align: center;
	overflow: hidden;
}
.udr-ad-slot:empty { display: none; }
.udr-ad-slot:not(:empty) {
	padding: 10px;
	border: 1px dashed var(--udr-border);
	border-radius: var(--udr-radius-sm);
	background: var(--udr-bg-soft);
}

/* ---------- Tabs ---------- */
.udr-tabs {
	display: flex;
	gap: 4px;
	background: var(--udr-bg-soft);
	border-radius: 999px;
	padding: 4px;
	margin-bottom: 18px;
	overflow-x: auto;
}
.udr-tab {
	flex: 1 1 0;
	white-space: nowrap;
	appearance: none;
	border: none;
	background: transparent;
	color: var(--udr-text-muted);
	font-weight: 700;
	font-size: 14px;
	padding: 10px 16px;
	border-radius: 999px;
	cursor: pointer;
	transition: background .15s ease, color .15s ease;
}
.udr-tab:hover { color: var(--udr-text); }
.udr-tab.is-active { background: #fff; color: var(--udr-primary); box-shadow: var(--udr-shadow); }
.udr-tab:focus-visible, .udr-root button:focus-visible, .udr-root select:focus-visible, .udr-root input:focus-visible {
	outline: 3px solid #9a9dfb;
	outline-offset: 2px;
}

.udr-panel[hidden] { display: none; }

/* ---------- Cards ---------- */
.udr-card {
	background: var(--udr-bg);
	border: 1px solid var(--udr-border);
	border-radius: var(--udr-radius);
	padding: 20px;
	margin-bottom: 16px;
	box-shadow: var(--udr-shadow);
}
.udr-card-title { margin: 0 0 12px; font-size: 17px; font-weight: 800; }
.udr-card-subtitle { margin: 0 0 10px; font-size: 14px; font-weight: 700; }
.udr-card-title-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; gap: 8px; }
.udr-card-title-row .udr-card-title { margin: 0; }
.udr-center { text-align: center; }
.udr-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 680px) { .udr-grid-2 { grid-template-columns: 1fr; } }

/* ---------- Field rows / selectors ---------- */
.udr-field-row { margin-bottom: 16px; }
.udr-field-row:last-child { margin-bottom: 0; }
.udr-field-label { display: block; font-weight: 700; font-size: 13.5px; margin-bottom: 8px; color: var(--udr-text-muted); text-transform: uppercase; letter-spacing: .03em; }

.udr-count-selector { display: inline-flex; gap: 6px; flex-wrap: wrap; }
.udr-count-btn {
	appearance: none;
	border: 1.5px solid var(--udr-border);
	background: #fff;
	color: var(--udr-text);
	font-weight: 700;
	font-size: 14px;
	min-width: 44px;
	min-height: 44px;
	padding: 8px 14px;
	border-radius: var(--udr-radius-sm);
	cursor: pointer;
	transition: all .15s ease;
}
.udr-count-btn:hover { border-color: var(--udr-primary); }
.udr-count-btn.is-active { background: var(--udr-primary); border-color: var(--udr-primary); color: #fff; }

.udr-select {
	width: 100%;
	max-width: 320px;
	padding: 10px 12px;
	border-radius: var(--udr-radius-sm);
	border: 1.5px solid var(--udr-border);
	font-size: 14px;
	background: #fff;
	color: var(--udr-text);
}
.udr-text-input {
	width: 100%;
	padding: 10px 12px;
	border-radius: var(--udr-radius-sm);
	border: 1.5px solid var(--udr-border);
	font-size: 14px;
	background: #fff;
	color: var(--udr-text);
}

/* ---------- Buttons ---------- */
.udr-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
.udr-actions-wrap { flex-wrap: wrap; }
.udr-btn {
	appearance: none;
	border: none;
	cursor: pointer;
	font-weight: 700;
	font-size: 14.5px;
	border-radius: 999px;
	padding: 12px 22px;
	display: inline-flex;
	align-items: center;
	gap: 8px;
	min-height: 44px;
	transition: transform .1s ease, box-shadow .15s ease, background .15s ease;
}
.udr-btn:active { transform: translateY(1px); }
.udr-btn-primary { background: linear-gradient(135deg, var(--udr-primary), var(--udr-primary-dark)); color: #fff; box-shadow: 0 6px 16px rgba(91,91,246,0.35); }
.udr-btn-primary:hover { box-shadow: 0 8px 20px rgba(91,91,246,0.45); }
.udr-btn-secondary { background: var(--udr-bg-soft); color: var(--udr-text); border: 1.5px solid var(--udr-border); }
.udr-btn-ghost { background: transparent; color: var(--udr-primary); border: 1.5px solid var(--udr-border); }
.udr-btn-small { padding: 8px 14px; font-size: 13px; min-height: 36px; }
.udr-btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------- Dice ---------- */
.udr-dice-stage {
	display: flex;
	flex-wrap: wrap;
	gap: 16px;
	justify-content: center;
	padding: 20px 8px;
	min-height: 110px;
	align-items: center;
}
.udr-die {
	width: 76px;
	height: 76px;
	background: linear-gradient(160deg, #ffffff, #eef0fa);
	border-radius: 16px;
	box-shadow: 0 6px 0 #cfd3ea, 0 10px 18px rgba(30,34,60,0.18), inset 0 1px 0 rgba(255,255,255,0.8);
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	grid-template-rows: repeat(3, 1fr);
	padding: 12px;
	position: relative;
}
.udr-die.is-rolling { animation: udr-die-shake .18s linear infinite; }
@keyframes udr-die-shake {
	0% { transform: rotate(0deg) scale(1); }
	25% { transform: rotate(-6deg) scale(1.03); }
	50% { transform: rotate(0deg) scale(0.98); }
	75% { transform: rotate(6deg) scale(1.03); }
	100% { transform: rotate(0deg) scale(1); }
}
.udr-pip { width: 12px; height: 12px; border-radius: 50%; background: var(--udr-primary-dark); align-self: center; justify-self: center; opacity: 0; }
.udr-pip.is-on { opacity: 1; }
/* pip grid positions per face using nth-child mapping done via inline classes from JS */
.udr-die-label { position: absolute; bottom: -22px; left: 0; right: 0; text-align: center; font-size: 12px; font-weight: 700; color: var(--udr-text-muted); }

/* ---------- Results ---------- */
.udr-results-empty { color: var(--udr-text-muted); font-size: 14px; }
.udr-results-list { list-style: none; margin: 0 0 14px; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.udr-results-list li { background: var(--udr-bg-soft); border-radius: var(--udr-radius-sm); padding: 8px 12px; font-size: 13.5px; font-weight: 600; }
.udr-stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; }
.udr-stat { background: var(--udr-bg-soft); border-radius: var(--udr-radius-sm); padding: 10px 12px; text-align: center; }
.udr-stat-label { display: block; font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--udr-text-muted); font-weight: 700; margin-bottom: 4px; }
.udr-stat-value { font-size: 20px; font-weight: 800; color: var(--udr-primary-dark); }

/* ---------- History ---------- */
.udr-history-list { list-style: none; margin: 0; padding: 0; max-height: 260px; overflow-y: auto; }
.udr-history-list li { padding: 8px 4px; border-bottom: 1px solid var(--udr-border); font-size: 13.5px; display: flex; justify-content: space-between; gap: 10px; }
.udr-history-list li:last-child { border-bottom: none; }
.udr-history-empty { color: var(--udr-text-muted); border-bottom: none !important; }

/* ---------- Settings / toggles ---------- */
.udr-setting-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--udr-border); }
.udr-setting-row:last-child { border-bottom: none; }
.udr-setting-row label { font-size: 14px; font-weight: 600; }
.udr-toggle { appearance: none; border: none; background: transparent; display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.udr-toggle-track { width: 40px; height: 22px; border-radius: 999px; background: #d6dae8; position: relative; transition: background .15s ease; }
.udr-toggle-thumb { position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.3); transition: transform .15s ease; }
.udr-toggle.is-on .udr-toggle-track { background: var(--udr-success); }
.udr-toggle.is-on .udr-toggle-thumb { transform: translateX(18px); }
.udr-toggle-state { font-size: 12.5px; font-weight: 700; color: var(--udr-text-muted); min-width: 26px; }

/* ---------- Challenge mode ---------- */
.udr-challenge-output { }
.udr-challenge-card { background: var(--udr-bg-soft); border-radius: var(--udr-radius-sm); padding: 14px 16px; margin-bottom: 10px; }
.udr-challenge-card:last-child { margin-bottom: 0; }
.udr-challenge-number { font-size: 12.5px; font-weight: 800; color: var(--udr-primary-dark); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 4px; }
.udr-challenge-text { font-size: 15.5px; font-weight: 600; }
.udr-custom-editor { margin: 8px 0 16px; padding-top: 12px; border-top: 1px solid var(--udr-border); }
.udr-custom-inputs { display: grid; grid-template-columns: 1fr; gap: 8px; margin-bottom: 12px; }
.udr-custom-input-row { display: flex; align-items: center; gap: 8px; }
.udr-custom-input-num { width: 26px; height: 26px; border-radius: 50%; background: var(--udr-primary); color: #fff; font-weight: 800; font-size: 12.5px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.udr-custom-set-controls { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.udr-saved-sets { display: flex; flex-direction: column; gap: 8px; }
.udr-saved-set-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; background: var(--udr-bg-soft); border-radius: var(--udr-radius-sm); padding: 8px 12px; font-size: 13.5px; }
.udr-saved-set-actions { display: flex; gap: 6px; }

/* ---------- Snake ---------- */
.udr-snake-wrap { position: relative; }
.udr-snake-screen[hidden] { display: none; }
.udr-snake-stat-row { display: flex; justify-content: center; gap: 24px; margin: 14px 0 20px; }
.udr-snake-stat { text-align: center; }
.udr-snake-stat-label { display: block; font-size: 12px; text-transform: uppercase; color: var(--udr-text-muted); font-weight: 700; margin-bottom: 4px; }
.udr-snake-stat-value { font-size: 24px; font-weight: 800; color: var(--udr-primary-dark); }

.udr-level-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(52px, 1fr)); gap: 8px; max-height: 340px; overflow-y: auto; padding: 4px; }
.udr-level-btn {
	appearance: none; border: 1.5px solid var(--udr-border); background: #fff;
	border-radius: var(--udr-radius-sm); padding: 10px 4px; font-weight: 700; font-size: 13px;
	cursor: pointer; min-height: 44px;
}
.udr-level-btn.is-unlocked:hover { border-color: var(--udr-primary); color: var(--udr-primary); }
.udr-level-btn.is-current { border-color: var(--udr-primary); background: var(--udr-primary); color: #fff; }
.udr-level-btn.is-locked { background: var(--udr-bg-soft); color: var(--udr-text-muted); cursor: not-allowed; }

.udr-snake-hud { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-bottom: 12px; }
.udr-hud-item { font-size: 13px; font-weight: 700; color: var(--udr-text-muted); }
.udr-hud-item span:last-child { color: var(--udr-text); font-weight: 800; margin-left: 4px; }
.udr-hud-label { text-transform: uppercase; font-size: 11px; letter-spacing: .03em; }

.udr-snake-board-wrap { position: relative; width: 100%; max-width: 480px; margin: 0 auto; aspect-ratio: 1 / 1; background: #16182b; border-radius: var(--udr-radius); overflow: hidden; box-shadow: var(--udr-shadow-lg); }
.udr-snake-canvas { width: 100%; height: 100%; display: block; touch-action: none; }
.udr-snake-overlay {
	position: absolute; inset: 0; background: rgba(10,10,20,0.82); color: #fff;
	display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
	text-align: center; padding: 20px;
}
.udr-snake-overlay[hidden] { display: none; }
.udr-snake-overlay h4 { margin: 0; font-size: 20px; }
.udr-snake-overlay .udr-actions { justify-content: center; }

.udr-snake-game-controls { display: flex; justify-content: center; gap: 8px; margin: 14px 0; flex-wrap: wrap; }

.udr-snake-touch-controls { display: flex; flex-direction: column; align-items: center; gap: 6px; margin-top: 8px; }
.udr-touch-mid-row { display: flex; gap: 6px; align-items: center; }
.udr-touch-btn {
	width: 54px; height: 54px; border-radius: 14px; border: none;
	background: var(--udr-bg-soft); color: var(--udr-primary-dark);
	display: flex; align-items: center; justify-content: center;
	box-shadow: var(--udr-shadow); cursor: pointer;
}
.udr-touch-btn:active { background: var(--udr-primary); color: #fff; }

/* ---------- SEO content ---------- */
.udr-seo-content { margin-top: 28px; }
.udr-seo-content h2 { font-size: 19px; margin: 26px 0 8px; }
.udr-seo-content p { margin: 0 0 4px; color: var(--udr-text); font-size: 15px; }

/* ---------- FAQ ---------- */
.udr-faq { margin-top: 28px; }
.udr-faq h2 { font-size: 19px; margin-bottom: 10px; }
.udr-faq-item { border-bottom: 1px solid var(--udr-border); }
.udr-faq-question {
	width: 100%; text-align: left; appearance: none; border: none; background: transparent;
	padding: 14px 4px; font-size: 15px; font-weight: 700; color: var(--udr-text);
	display: flex; align-items: center; justify-content: space-between; gap: 10px; cursor: pointer;
}
.udr-faq-icon { transition: transform .15s ease; flex-shrink: 0; }
.udr-faq-question[aria-expanded="true"] .udr-faq-icon { transform: rotate(180deg); }
.udr-faq-answer { padding: 0 4px 14px; color: var(--udr-text-muted); font-size: 14.5px; }
.udr-faq-answer[hidden] { display: none; }
.udr-faq-answer p { margin: 0; }

/* ---------- Modal ---------- */
.udr-modal-overlay {
	position: fixed; inset: 0; background: rgba(10,12,25,0.55);
	display: flex; align-items: center; justify-content: center;
	z-index: 100000; padding: 16px;
}
.udr-modal-overlay[hidden] { display: none; }
.udr-modal { background: #fff; border-radius: var(--udr-radius); padding: 22px; max-width: 380px; width: 100%; box-shadow: var(--udr-shadow-lg); }
.udr-modal h3 { margin: 0 0 8px; font-size: 17px; }
.udr-modal p { margin: 0 0 16px; color: var(--udr-text-muted); font-size: 14px; }

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
	.udr-die { width: 60px; height: 60px; padding: 8px; }
	.udr-count-btn { min-width: 38px; padding: 8px 10px; }
	.udr-btn { padding: 10px 16px; font-size: 13.5px; }
	.udr-header { padding: 20px 16px; }
}