/* ===== Memve design ===== */
:root {
    --memve-radius: 16px;
    --memve-serif: "Lora", Georgia, "Times New Roman", serif;
    --memve-gradient: linear-gradient(135deg, #5B5BD6 0%, #7C5CE6 55%, #A05CE6 100%);
}

body { font-family: "Inter", Roboto, Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; }

h1, h2, h3 { letter-spacing: -.01em; }

/* app bar */
.memve-appbar { border-bottom: 1px solid var(--mud-palette-lines-default); }
.memve-appbar .mud-toolbar { gap: 8px; }
.memve-brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.25rem; color: var(--mud-palette-text-primary) !important; margin-right: 16px; }
.memve-nav-desktop { display: flex; gap: 4px; }
.memve-nav-link { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; padding: 8px 12px; border-radius: 999px; text-decoration: none; font-weight: 500; font-size: .9rem; color: var(--mud-palette-text-secondary); transition: background .15s, color .15s; }
.memve-nav-link:hover { background: var(--mud-palette-action-default-hover); color: var(--mud-palette-text-primary); }
.memve-nav-link.active { background: color-mix(in srgb, var(--mud-palette-primary) 14%, transparent); color: var(--mud-palette-primary); }
.memve-user { display: inline-flex; align-items: center; gap: 4px; font-size: .85rem; color: var(--mud-palette-text-secondary); margin: 0 4px; }
.memve-main { background: var(--mud-palette-background); min-height: 100vh; }

/* bottom navigation (phones) */
.memve-bottom-nav { display: none; }
@media (max-width: 720px) {
    .memve-nav-desktop, .memve-user { display: none; }
    .memve-main { padding-bottom: 76px; }
    .memve-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 1300; display: flex; background: var(--mud-palette-surface); border-top: 1px solid var(--mud-palette-lines-default); padding: 6px 4px calc(6px + env(safe-area-inset-bottom)); }
    .memve-bottom-item { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 2px; border-radius: 12px; text-decoration: none; font-size: .68rem; font-weight: 500; color: var(--mud-palette-text-secondary); }
    .memve-bottom-item.active { color: var(--mud-palette-primary); background: color-mix(in srgb, var(--mud-palette-primary) 12%, transparent); }
}

/* common */
.memve-page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.memve-page-head h1 { margin: 0; font-size: 1.75rem; font-weight: 700; }
.memve-center { display: flex; justify-content: center; padding: 48px 0; }
.memve-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.memve-panel { padding: 24px; border-radius: var(--memve-radius); border: 1px solid var(--mud-palette-lines-default); }
.memve-section-title { margin: 24px 0 8px; font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--mud-palette-text-secondary); }
.memve-empty { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 8px; padding: 56px 16px; }
.memve-empty h2 { margin: 8px 0 0; font-size: 1.4rem; font-weight: 600; }
.memve-empty p { margin: 0; color: var(--mud-palette-text-secondary); }
.memve-meta { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: .8rem; color: var(--mud-palette-text-secondary); }
.memve-meta span { display: inline-flex; align-items: center; gap: 4px; }

/* home */
.memve-hero { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; padding: 32px; border-radius: 24px; color: #fff; background: var(--memve-gradient); box-shadow: 0 12px 32px -12px rgba(91, 91, 214, .6); }
.memve-hero-hello { font-size: 1rem; opacity: .9; }
.memve-hero-number { font-size: 4.5rem; font-weight: 700; line-height: 1; margin: 8px 0 4px; }
.memve-hero-caption { opacity: .9; }
.memve-hero-done { display: flex; align-items: center; gap: 10px; font-size: 1.5rem; font-weight: 600; margin-top: 8px; }
.memve-hero-btn.mud-button-root { background: #fff !important; color: #4B4BC8 !important; font-weight: 600; border-radius: 999px; padding-inline: 24px; }
.memve-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-top: 20px; }
.memve-tile { padding: 20px; border-radius: var(--memve-radius); background: var(--mud-palette-surface); border: 1px solid var(--mud-palette-lines-default); }
.memve-tile-value { font-size: 1.9rem; font-weight: 700; margin-top: 8px; line-height: 1.1; }
.memve-tile-label { font-size: .8rem; color: var(--mud-palette-text-secondary); }

/* practice */
.memve-study { max-width: 720px; margin: 0 auto; }
.memve-study-progress { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; font-size: .85rem; color: var(--mud-palette-text-secondary); }
.memve-study-progress .mud-progress-linear { flex: 1; }
.memve-study-card { padding: 32px; border-radius: 24px; border: 1px solid var(--mud-palette-lines-default); box-shadow: 0 18px 40px -24px rgba(31, 35, 64, .35); }
.memve-study-head { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.memve-study-head h2 { margin: 0; font-size: 1.6rem; font-weight: 700; }
.memve-verse { font-family: var(--memve-serif); font-size: 1.4rem; line-height: 1.75; margin: 24px 0; }
.memve-question { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px; padding: 32px 0; color: var(--mud-palette-text-secondary); }
.memve-question p { margin: 0; }
.memve-hint { font-family: var(--memve-serif); font-size: 1.15rem; line-height: 1.8; letter-spacing: .06em; margin-top: 16px !important; color: var(--mud-palette-text-primary); opacity: .75; }
.memve-study-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 8px; }
.memve-grades { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 8px; }
.memve-grade { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 14px 8px; border: 0; border-radius: 14px; font: inherit; color: #fff; cursor: pointer; transition: transform .1s, filter .15s; }
.memve-grade:hover:not(:disabled) { filter: brightness(1.08); transform: translateY(-1px); }
.memve-grade:disabled { opacity: .6; cursor: default; }
.memve-grade strong { font-size: 1rem; }
.memve-grade small { font-size: .72rem; opacity: .9; text-transform: uppercase; letter-spacing: .04em; }
.memve-grade-again { background: #EF4444; }
.memve-grade-hard { background: #F59E0B; }
.memve-grade-good { background: #16A34A; }
.memve-grade-easy { background: #3B82F6; }
@media (max-width: 560px) {
    .memve-study-card { padding: 20px; border-radius: 20px; }
    .memve-grades { grid-template-columns: repeat(2, 1fr); }
    .memve-verse { font-size: 1.2rem; }
    .memve-hero { padding: 24px; }
    .memve-hero-number { font-size: 3.5rem; }
}

/* learned passages */
.memve-list { display: flex; flex-direction: column; gap: 14px; }
.memve-learning { padding: 18px 20px; border-radius: var(--memve-radius); border: 1px solid var(--mud-palette-lines-default); border-left-width: 5px; }
.memve-learning.grade-good { border-left-color: var(--mud-palette-success); }
.memve-learning.grade-medium { border-left-color: var(--mud-palette-warning); }
.memve-learning.grade-bad { border-left-color: var(--mud-palette-error); }
.memve-learning-head { display: flex; align-items: center; gap: 10px; }
.memve-learning-head h3 { margin: 0; font-size: 1.15rem; font-weight: 600; }
.memve-learning-text { font-family: var(--memve-serif); line-height: 1.65; margin: 8px 0; display: -webkit-box; -webkit-line-clamp: 3; line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* add passage */
.memve-verse-card { padding: 20px 24px; border-radius: var(--memve-radius); border: 1px dashed var(--mud-palette-lines-default); min-height: 72px; }
.memve-verse-card p { font-family: var(--memve-serif); font-size: 1.1rem; line-height: 1.7; margin: 0 0 6px; }
.memve-verse-card sup { color: var(--mud-palette-primary); font-weight: 600; margin-right: 2px; }

/* settings */
.memve-setting { display: flex; gap: 16px; align-items: flex-start; padding: 8px 0 16px; }
.memve-setting-icon { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; flex: none; border-radius: 12px; background: color-mix(in srgb, var(--mud-palette-primary) 12%, transparent); margin-top: 6px; }
.memve-setting-body { flex: 1; min-width: 0; }

/* sign-in / registration */
.account-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; background: var(--memve-gradient); font-family: "Inter", Roboto, Helvetica, Arial, sans-serif; }
.account-card { width: 100%; max-width: 400px; background: #fff; border-radius: 24px; box-shadow: 0 24px 60px -20px rgba(31, 35, 64, .55); padding: 36px 32px; color: #1F2340; }
.account-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; font-size: 1.6rem; font-weight: 700; letter-spacing: -.02em; }
.account-brand span { background: var(--memve-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.memve-logo { flex: none; border-radius: 22%; }
.account-card h1 { margin: 0 0 20px; font-size: 1.5rem; font-weight: 600; }
.account-link { margin: 20px 0 0; font-size: .875rem; text-align: center; }
.account-link a { color: #5B5BD6; font-weight: 500; }

/* ===== statistics, recommended verses, queue ===== */
.memve-head-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.memve-subtitle { margin-top: 4px; font-size: .9rem; color: var(--mud-palette-text-secondary); max-width: 560px; }
.memve-scroll-x { overflow-x: auto; }
a.memve-tile { text-decoration: none; color: inherit; display: block; }
.memve-tile-streak { background: linear-gradient(135deg, color-mix(in srgb, var(--mud-palette-warning) 16%, var(--mud-palette-surface)), var(--mud-palette-surface)); }
.memve-question-text { margin: 0 0 16px; color: var(--mud-palette-text-secondary); text-align: center; }

.memve-heatmap { display: grid; grid-template-rows: repeat(7, 16px); grid-auto-flow: column; grid-auto-columns: 16px; gap: 4px; width: max-content; margin: 0 auto; }
.memve-heat { border-radius: 4px; background: var(--mud-palette-lines-default); }
.memve-heat-1 { background: color-mix(in srgb, var(--mud-palette-primary) 28%, transparent); }
.memve-heat-2 { background: color-mix(in srgb, var(--mud-palette-primary) 50%, transparent); }
.memve-heat-3 { background: color-mix(in srgb, var(--mud-palette-primary) 75%, transparent); }
.memve-heat-4 { background: var(--mud-palette-primary); }

.memve-trend { display: flex; align-items: flex-end; gap: 8px; height: 160px; }
.memve-trend-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; min-width: 0; }
.memve-trend-col span { font-size: .65rem; color: var(--mud-palette-text-secondary); white-space: nowrap; }
.memve-trend-track { flex: 1; width: 100%; display: flex; align-items: flex-end; background: color-mix(in srgb, var(--mud-palette-lines-default) 55%, transparent); border-radius: 8px; overflow: hidden; }
.memve-trend-bar { width: 100%; background: var(--memve-gradient); border-radius: 8px 8px 0 0; min-height: 2px; }

.memve-distribution { display: flex; height: 18px; border-radius: 999px; overflow: hidden; background: var(--mud-palette-lines-default); }
.memve-distribution-weak { background: var(--mud-palette-error); }
.memve-distribution-medium { background: var(--mud-palette-warning); }
.memve-distribution-strong { background: var(--mud-palette-success); }

.memve-badges { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.memve-badge { display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: 999px; font-size: .85rem; font-weight: 500; color: var(--mud-palette-text-secondary); border: 1px solid var(--mud-palette-lines-default); background: var(--mud-palette-surface); opacity: .6; }
.memve-badge.earned { opacity: 1; color: var(--mud-palette-primary); border-color: color-mix(in srgb, var(--mud-palette-primary) 40%, transparent); background: color-mix(in srgb, var(--mud-palette-primary) 10%, var(--mud-palette-surface)); }
.memve-badges .memve-badge { border-radius: 16px; padding: 14px; }

.memve-tip .memve-learning-text { -webkit-line-clamp: 4; line-clamp: 4; }
.memve-tip { border-left-color: var(--mud-palette-primary); }
.memve-tip-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 8px; }

/* ===== PWA: loading screen, synchronisation ===== */
.memve-loading { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px; background: #F4F5FB; }
.memve-loading-logo { width: 84px; height: 84px; border-radius: 24px; display: flex; align-items: center; justify-content: center; font: 700 2.6rem Inter, sans-serif; color: #fff; background: var(--memve-gradient); box-shadow: 0 16px 40px -16px rgba(91, 91, 214, .8); }
.memve-loading-bar { width: 140px; height: 4px; border-radius: 2px; background: #E1E3F2; overflow: hidden; }
.memve-loading-bar div { height: 100%; width: 40%; border-radius: 2px; background: #5B5BD6; animation: memve-load 1.2s ease-in-out infinite; }
@keyframes memve-load { 0% { margin-left: -40%; } 100% { margin-left: 100%; } }

#blazor-error-ui { color-scheme: light only; background: #fdecea; color: #b3261e; bottom: 0; box-shadow: 0 -1px 2px rgba(0, 0, 0, .2); box-sizing: border-box; display: none; left: 0; padding: .6rem 1.25rem .7rem 1.25rem; position: fixed; width: 100%; z-index: 10001; }
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: .75rem; top: .5rem; }

.memve-spin .mud-icon-root { animation: memve-rotate 1s linear infinite; }
@keyframes memve-rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.memve-pending { display: inline-flex; align-items: center; justify-content: center; min-width: 20px; height: 20px; padding: 0 6px; margin-left: -8px; border-radius: 999px; font-size: .7rem; font-weight: 600; color: #fff; background: var(--mud-palette-warning); }
.memve-offline-bar { display: block; padding: 6px 16px; font-size: .8rem; text-align: center; text-decoration: none; color: #7a4b00; background: #fff3cd; position: sticky; top: 64px; z-index: 5; }
.memve-offline-bar-warn { color: #b3261e; background: #fdecea; }
@media (max-width: 720px) { .memve-offline-bar { top: 56px; } }

/* ===== keyboard shortcuts ===== */
.memve-grade { position: relative; }
.memve-grade kbd { position: absolute; top: 6px; right: 8px; min-width: 18px; padding: 0 5px; border-radius: 5px; font: 600 .68rem Inter, sans-serif; line-height: 18px; text-align: center; color: #fff; background: rgba(255, 255, 255, .25); }
.memve-shortcuts { margin-top: 14px; text-align: center; font-size: .75rem; color: var(--mud-palette-text-secondary); }
@media (hover: none) { .memve-shortcuts, .memve-grade kbd { display: none; } }

/* ===== administration, account texts ===== */
.memve-admin { border-left-color: var(--mud-palette-secondary); }
.memve-admin h3 { margin: 0; font-size: 1.05rem; font-weight: 600; }
.memve-admin-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.memve-admin-grow { flex: 1 1 220px; min-width: 0; }
.account-text { margin: 0 0 16px; font-size: .9rem; color: #6B7094; }

/* ===== statistics of a passage ===== */
.memve-grade-bg-again { background: #EF4444; }
.memve-grade-bg-hard { background: #F59E0B; }
.memve-grade-bg-good { background: #16A34A; }
.memve-grade-bg-easy { background: #3B82F6; }
.memve-learning-link { color: inherit; text-decoration: none; }
.memve-learning-link:hover { color: var(--mud-palette-primary); }
.memve-dots { display: inline-flex; align-items: center; gap: 3px; margin-left: auto; }
.memve-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; }
.memve-trend-up { color: var(--mud-palette-success); }
.memve-trend-down { color: var(--mud-palette-error); }
.memve-gradechart { display: flex; align-items: flex-end; gap: 4px; height: 140px; }
.memve-gradechart-col { flex: 1; min-width: 0; max-width: 28px; height: 100%; }
.memve-gradechart-track { height: 100%; display: flex; align-items: flex-end; border-radius: 6px; background: color-mix(in srgb, var(--mud-palette-lines-default) 55%, transparent); overflow: hidden; }
.memve-gradechart-bar { width: 100%; border-radius: 6px 6px 0 0; }
.memve-gradechart-axis { display: flex; justify-content: space-between; margin-top: 8px; font-size: .7rem; color: var(--mud-palette-text-secondary); }
.memve-history { padding: 8px 20px; }
.memve-history-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--mud-palette-lines-default); font-size: .9rem; }
.memve-history-row:last-child { border-bottom: 0; }
.memve-history-day { flex: 1; font-weight: 500; }
.memve-history-grade { min-width: 74px; padding: 3px 12px; border-radius: 999px; text-align: center; font-size: .75rem; font-weight: 600; color: #fff; }
.memve-history-time { width: 52px; text-align: right; color: var(--mud-palette-text-secondary); font-size: .8rem; }

.memve-tile-value-sm { font-size: 1.3rem; padding: .25rem 0; }

/* ===== swipe gestures of the study card (touch only) ===== */
.memve-study-card { position: relative; touch-action: pan-y; will-change: transform; }
.memve-study-card[data-swipe]::after { content: attr(data-label-right); position: absolute; top: 14px; right: 14px; padding: 4px 14px; border-radius: 999px; font-size: .85rem; font-weight: 700; color: #fff; background: #16A34A; pointer-events: none; }
.memve-study-card[data-swipe="left"]::after { content: attr(data-label-left); right: auto; left: 14px; background: #EF4444; }
.memve-study-card[data-swipe="right"] { box-shadow: 0 0 0 3px #16A34A, 0 18px 40px -24px rgba(31, 35, 64, .35); }
.memve-study-card[data-swipe="left"] { box-shadow: 0 0 0 3px #EF4444, 0 18px 40px -24px rgba(31, 35, 64, .35); }
.memve-swipe-hint { display: none; margin-top: 14px; text-align: center; font-size: .8rem; color: var(--mud-palette-text-secondary); }
@media (hover: none) { .memve-swipe-hint { display: block; } }
.memve-study-speak { margin-left: auto; }
.memve-verse-tools { display: flex; justify-content: flex-end; margin-top: 4px; }

/* ===== search and comparison of translations ===== */
.memve-search-form { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.memve-hit-text { font-family: var(--memve-serif); font-size: 1.05rem; line-height: 1.7; margin: 8px 0 0; }
.memve-hit-text mark { padding: 0 2px; border-radius: 4px; color: inherit; background: color-mix(in srgb, var(--mud-palette-warning) 45%, transparent); }
.memve-compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; margin-bottom: 8px; }
.memve-compare-card { min-height: 0; }
.memve-compare-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 6px; }
.memve-compare-ref { font-size: .8rem; font-weight: 600; color: var(--mud-palette-primary); margin-bottom: 6px; }
.memve-muted { color: var(--mud-palette-text-secondary); font-style: italic; }

/* ===== introduction at the first start ===== */
.memve-onboard-backdrop { position: fixed; inset: 0; z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 16px; background: rgba(20, 22, 45, .6); backdrop-filter: blur(4px); }
.memve-onboard { position: relative; width: 100%; max-width: 460px; padding: 0 28px 24px; overflow: hidden; border-radius: 28px; text-align: center; background: var(--mud-palette-surface); box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .5); }
.memve-onboard h2 { margin: 20px 0 8px; font-size: 1.5rem; font-weight: 700; }
.memve-onboard p { margin: 0 0 20px; line-height: 1.6; color: var(--mud-palette-text-secondary); }
.memve-onboard-art { display: flex; align-items: center; justify-content: center; margin: 0 -28px; height: 170px; color: #fff; background: linear-gradient(135deg, #5B5BD6, #A05CE6); }
.memve-onboard-art-1 { background: linear-gradient(135deg, #5B5BD6, #3B82F6); }
.memve-onboard-art-2 { background: linear-gradient(135deg, #16A34A, #5B5BD6); }
.memve-onboard-art-3 { background: linear-gradient(135deg, #F59E0B, #EF4444); }
.memve-onboard-skip { position: absolute; top: 12px; right: 12px; display: flex; padding: 6px; border: 0; border-radius: 50%; color: #fff; background: rgba(255, 255, 255, .22); cursor: pointer; }
.memve-onboard-dots { display: flex; justify-content: center; gap: 8px; margin-bottom: 20px; }
.memve-onboard-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mud-palette-lines-default); transition: all .2s; }
.memve-onboard-dot.active { width: 24px; border-radius: 999px; background: var(--mud-palette-primary); }
.memve-onboard-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; }

/* ===== log ===== */
.memve-log { border-left-color: var(--mud-palette-lines-default); }
.memve-log-1 { border-left-color: var(--mud-palette-warning); }
.memve-log-2 { border-left-color: var(--mud-palette-error); }
.memve-log h3 { margin: 0; font-size: 1rem; font-weight: 600; word-break: break-word; }
.memve-log-text { margin: 8px 0; font-size: .85rem; white-space: pre-wrap; word-break: break-word; color: var(--mud-palette-text-secondary); }
.memve-pager { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; }

/* ===== schedule additions ===== */
.memve-hint-cap { margin-top: 10px; text-align: center; font-size: .8rem; color: var(--mud-palette-warning-darken, #b26a00); }
.memve-slider-label { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.memve-slider-label strong { font-size: 1.1rem; color: var(--mud-palette-primary); }

/* ===== sets of verses ===== */
.memve-set-desc { margin: 4px 0 0; font-size: .9rem; color: var(--mud-palette-text-secondary); }
.memve-set-passages { margin-top: 12px; border-top: 1px solid var(--mud-palette-lines-default); }
.memve-set-passage { padding: 10px 0; border-bottom: 1px solid var(--mud-palette-lines-default); }
.memve-set-passage:last-child { border-bottom: 0; }
.memve-set-ref { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.memve-set-passage .memve-learning-text { margin: 6px 0 0; }