/* MATEMATICKÉ ZEBRY - Stylový soubor */
:root {
    --gradient-primary: linear-gradient(135deg, #168A3A, #22A652);
    --color-primary: #168A3A;
    --color-secondary: #2F80ED;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(13,22,51,0.04);
    --shadow-md: 0 6px 16px rgba(13,22,51,0.08);
    --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* HERO */
.zebry-hero {
    padding: 130px 0 24px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(88,193,28,0.06) 0%, rgba(247,196,0,0.04) 100%);
}

.zebry-hero > .container {
    position: relative;
    z-index: 1;
}
.zebry-hero-extended .container { display: block; }
.zebry-hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2rem;
    align-items: center;
}
.zebry-hero-content { display: flex; flex-direction: column; }
.zebry-hero-image { display: flex; align-items: center; justify-content: center; }
.zebry-hero-image img {
    max-width: 100%; height: auto; border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    animation: heroFloat 4s ease-in-out infinite;
}
@keyframes heroFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Hero bottom row: scoring + support side by side */
.hero-bottom-row {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem;
    margin-top: 1.25rem;
}
.hero-scoring {
    padding: 1.25rem;
    background: rgba(255,255,255,0.7); backdrop-filter: blur(10px);
    border-radius: var(--radius-lg); border: 1px solid rgba(13,22,51,0.06);
}
.hero-scoring h3 {
    font-family: 'Outfit', sans-serif; font-size: 0.95rem; font-weight: 600;
    margin-bottom: 0.75rem; display: flex; align-items: center; gap: 0.4rem;
}
.hero-scoring h3 i { color: var(--color-secondary); }
.scoring-list { display: flex; flex-direction: column; gap: 0.5rem; }
.scoring-item-compact {
    display: flex; align-items: center; gap: 0.6rem;
    font-size: 0.8rem; line-height: 1.3;
}
.scoring-item-compact .scoring-icon {
    width: 28px; height: 28px; min-width: 28px; font-size: 0.75rem;
}
.scoring-item-compact strong { font-weight: 700; }

/* Hero support card */
.hero-support {
    padding: 1.25rem; text-align: center;
    background: linear-gradient(135deg, #fef3c7 0%, #fce7f3 50%, #e0e7ff 100%);
    border-radius: var(--radius-lg); border: 1px solid rgba(247,196,0,0.15);
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.5rem;
}
.hero-support .support-promo-icon { width: 40px; height: 40px; min-width: 40px; font-size: 1.1rem; }
.hero-support h3 {
    font-family: 'Outfit', sans-serif; font-size: 0.95rem; font-weight: 600; margin: 0;
}
.hero-support p { font-size: 0.8rem; color: var(--color-muted); margin: 0; line-height: 1.4; }

/* Support promo bar */
.support-promo-bar {
    background: linear-gradient(135deg, #fef3c7 0%, #fce7f3 50%, #e0e7ff 100%);
    border-top: 1px solid rgba(247,196,0,0.15);
    border-bottom: 1px solid rgba(247,196,0,0.15);
    padding: 1.5rem 0;
}
.support-promo-bar .support-promo-content {
    display: flex; align-items: center; gap: 1.5rem;
}

/* Show more button */
.show-more-wrapper { text-align: center; margin-top: 2rem; }
.btn-show-more {
    display: inline-flex; align-items: center; gap: 0.6rem;
    padding: 0.8rem 2rem; border: 2px solid var(--color-primary);
    background: transparent; color: var(--color-primary); border-radius: 50px;
    font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 0.9rem;
    cursor: pointer; transition: var(--transition);
}
.btn-show-more:hover {
    background: var(--color-primary); color: #fff;
    transform: translateY(-2px); box-shadow: 0 4px 15px rgba(88,193,28,0.3);
}
.btn-show-more i { transition: transform 0.3s ease; }
.btn-show-more:hover i { transform: translateY(3px); }

/* Bottom two-column: auth + discussion side by side */
.bottom-two-col {
    display: grid; grid-template-columns: 1fr 1.2fr; gap: 1.5rem;
    margin-top: 2.5rem; align-items: start;
}

/* List auth section (compact) */
.list-auth-section { margin: 0; }
.auth-widget-inline {
    background: #fff; border-radius: var(--radius-lg);
    padding: 1.25rem; border: 1px solid rgba(13,22,51,0.06);
}
.auth-widget-inline .form-group { margin-bottom: 0.6rem; }
.auth-widget-inline label { font-size: 0.8rem; margin-bottom: 0.2rem; }
.auth-widget-inline input { padding: 0.5rem 0.75rem; font-size: 0.85rem; }
.auth-widget-inline .btn-auth { padding: 0.55rem 1.2rem; font-size: 0.8rem; }
.auth-tabs { gap: 0; }
.auth-tab { padding: 0.5rem 1rem; font-size: 0.8rem; }

/* Login to comment link */
.login-to-comment {
    padding: 1rem; text-align: center; font-size: 0.9rem; color: var(--color-muted);
    background: var(--color-bg); border-radius: var(--radius-sm);
}
.login-to-comment a { color: var(--color-primary); font-weight: 600; }
.login-to-comment.hidden { display: none; }

/* AUTH WIDGET */
.auth-widget {
    background: var(--gradient-glass);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255,255,255,0.7);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}
.auth-tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.auth-tab {
    flex: 1; padding: 0.7rem; border: none; background: transparent;
    font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 0.85rem;
    color: var(--color-muted); border-radius: var(--radius-sm); cursor: pointer;
    transition: var(--transition);
}
.auth-tab.active { background: var(--color-primary); color: #fff; }
.auth-form.hidden { display: none; }
.form-group { margin-bottom: 1rem; }
.form-group label {
    display: block; margin-bottom: 0.4rem;
    font-family: 'Outfit', sans-serif; font-weight: 500; font-size: 0.85rem; color: var(--color-text);
}
.form-group label i { color: var(--color-primary); margin-right: 0.4rem; width: 16px; }
.form-group input {
    width: 100%; padding: 0.75rem 1rem; border: 1px solid rgba(13,22,51,0.12);
    border-radius: var(--radius-sm); font-family: 'Outfit', sans-serif; font-size: 0.95rem;
    background: rgba(255,255,255,0.8); transition: var(--transition); color: var(--color-text);
}
.form-group input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(88,193,28,0.15); }
.btn-auth { width: 100%; margin-top: 0.5rem; }

/* Přihlášený profil mini */
.auth-logged-in.hidden { display: none; }
.profile-mini { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.avatar-emoji { font-size: 2.5rem; }
.profile-mini-info { display: flex; flex-direction: column; }
.profile-mini-info strong { font-family: 'Outfit', sans-serif; font-size: 1.1rem; }
.user-points { font-size: 0.85rem; color: var(--color-primary); font-weight: 600; }
.user-points i { color: var(--color-secondary); }
.profile-mini-actions { display: flex; gap: 0.75rem; }
.btn-icon {
    width: 42px; height: 42px; border-radius: 50%; border: 1px solid rgba(13,22,51,0.1);
    background: rgba(255,255,255,0.8); color: var(--color-text); font-size: 1.1rem;
    cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center;
}
.btn-icon:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* VIEWS */
.view { display: none; padding: 40px 0 80px; }
.view.active { display: block; }

/* SECTION HEADER & CONTROLS */
.section-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1.25rem; margin-bottom: 1.75rem; }
.section-header h2 { font-size: clamp(1.4rem, 2.2vw, 1.85rem); display: flex; align-items: center; gap: 0.65rem; margin: 0; }
.section-header h2 i { color: var(--color-primary); }

.tasks-toolbar { display: flex; align-items: center; justify-content: flex-end; gap: 0.85rem; flex-wrap: wrap; }
.difficulty-filter { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.filter-btn {
    padding: 0.45rem 1.05rem; border: 1px solid rgba(13,22,51,0.1); background: #fff;
    border-radius: 50px; font-family: 'Montserrat', sans-serif; font-weight: 600;
    font-size: 0.78rem; cursor: pointer; transition: var(--transition); color: #657287;
}
.filter-btn.active, .filter-btn:hover { background: #22A652; color: #fff; border-color: #22A652; }

/* View switcher (Banery / Grid vs Řádky / List) */
.view-switcher {
    display: inline-flex; align-items: center;
    background: #eef4eb; padding: 3px; border-radius: 50px;
    border: 1px solid #dce8d8; gap: 2px;
}
.view-switch-btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.38rem 0.85rem; border: none; background: transparent;
    border-radius: 50px; font-family: 'Montserrat', sans-serif;
    font-size: 0.78rem; font-weight: 600; color: #5a6a5a;
    cursor: pointer; transition: all 0.2s ease;
}
.view-switch-btn i { font-size: 0.82rem; }
.view-switch-btn:hover { color: #18243D; }
.view-switch-btn.active {
    background: #fff; color: #168A3A; font-weight: 700;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

/* TASK CARDS LIST LAYOUT (výchozí / řádky) */
.tasks-grid { display: flex; flex-direction: column; gap: 0.75rem; }
.task-card {
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
    background: #fff; border-radius: var(--radius-lg); padding: 1rem 1.25rem;
    border: 1px solid rgba(13,22,51,0.05); box-shadow: var(--shadow-sm);
    transition: var(--transition); position: relative; overflow: hidden;
    cursor: pointer;
}
.task-card:hover { transform: translateX(4px); box-shadow: var(--shadow-md); border-color: rgba(22,138,58,0.25); }
.task-card.solved { border-left: 4px solid var(--color-primary); background: #fdfdfd; }
.task-card-content { flex: 1; min-width: 0; }
.task-card-header { display: flex; justify-content: flex-start; align-items: center; gap: 0.5rem; margin-bottom: 0.35rem; flex-wrap: wrap; }
.task-card-badges { display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; }
.task-card h3, .task-title { font-family: 'Outfit', sans-serif; font-size: 1.15rem; font-weight: 600; margin: 0; color: #18243D; }
.task-card p, .task-story { font-size: 0.88rem; line-height: 1.4; margin-bottom: 0; color: #555; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.task-card-footer { display: flex; align-items: center; gap: 1.25rem; flex-shrink: 0; }
.task-meta { display: flex; gap: 0.85rem; align-items: center; flex-wrap: wrap; }

.difficulty-badge {
    padding: 0.3rem 0.85rem; border-radius: 50px; font-family: 'Montserrat', sans-serif;
    font-weight: 600; font-size: 0.7rem; letter-spacing: 0.03em; text-transform: uppercase;
}
.diff-beginner { background: rgba(88,193,28,0.12); color: #168A3A; }
.diff-advanced { background: rgba(14,165,233,0.12); color: #0284c7; }
.diff-expert { background: rgba(245,158,11,0.12); color: #d97706; }
.diff-detective { background: rgba(239,68,68,0.12); color: #dc2626; }
.task-time { font-size: 0.82rem; color: var(--color-muted); display: flex; align-items: center; gap: 0.35rem; }
.task-time i { color: var(--color-secondary); }
.task-play-btn {
    width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0;
    background: var(--gradient-primary); color: #fff; border: none; font-size: 1.05rem;
    cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center;
}
.task-play-btn:hover { transform: scale(1.1); box-shadow: 0 4px 15px rgba(88,193,28,0.35); }

/* TASKS GRID / BANNER LAYOUT (malé banery vedle sebe) */
.tasks-grid.view-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.1rem;
}
.tasks-grid.view-grid .task-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
    padding: 1.15rem 1.2rem 1rem;
    border-top: 4px solid transparent;
    border-left: 1px solid rgba(13,22,51,0.06);
    border-right: 1px solid rgba(13,22,51,0.06);
    border-bottom: 1px solid rgba(13,22,51,0.06);
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px rgba(13,22,51,0.04);
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.tasks-grid.view-grid .task-card[data-diff="beginner"] { border-top-color: #22A652; }
.tasks-grid.view-grid .task-card[data-diff="advanced"] { border-top-color: #0284c7; }
.tasks-grid.view-grid .task-card[data-diff="expert"] { border-top-color: #d97706; }
.tasks-grid.view-grid .task-card[data-diff="detective"] { border-top-color: #dc2626; }

.tasks-grid.view-grid .task-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(24,36,61,0.09);
    border-color: rgba(22,138,58,0.25);
}
.tasks-grid.view-grid .task-card.solved {
    background: linear-gradient(180deg, #f8fdf8 0%, #ffffff 100%);
    border-left-width: 1px;
}
.tasks-grid.view-grid .task-card-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}
.tasks-grid.view-grid .task-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.45rem;
}
.tasks-grid.view-grid .task-card h3,
.tasks-grid.view-grid .task-title {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.35;
    margin: 0.25rem 0 0.4rem;
    color: #18243D;
}
.tasks-grid.view-grid .task-card p,
.tasks-grid.view-grid .task-story {
    font-size: 0.84rem;
    line-height: 1.45;
    color: #555;
    margin-bottom: 0.75rem;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    min-height: 2.45em;
}
.tasks-grid.view-grid .task-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid #f0f4ee;
    width: 100%;
}
.tasks-grid.view-grid .task-meta {
    gap: 0.5rem;
}
.tasks-grid.view-grid .task-time {
    font-size: 0.78rem;
}
.tasks-grid.view-grid .btn-mark-played {
    padding: 0.25rem 0.65rem;
    font-size: 0.72rem;
}
.tasks-grid.view-grid .task-play-btn {
    width: 36px;
    height: 36px;
    min-width: 36px;
    font-size: 0.9rem;
}

/* Mark played manual button */
.btn-mark-played {
    background: none; border: 1px solid #ccc; border-radius: 50px;
    padding: 0.3rem 0.8rem; font-size: 0.75rem; font-family: 'Montserrat', sans-serif; font-weight: 600;
    cursor: pointer; color: #666; transition: all 0.2s;
}
.btn-mark-played:hover { background: #f0f0f0; border-color: #aaa; color: #333; }
.task-card.solved .btn-mark-played { background: rgba(88,193,28,0.1); border-color: #168A3A; color: #168A3A; }
.task-card.solved .btn-mark-played:hover { background: rgba(239,68,68,0.1); border-color: #dc2626; color: #dc2626; }
.task-card.solved .btn-mark-played:hover i:before { content: "\f00d"; } /* cross icon on hover to cancel */

.solved-badge { color: var(--color-primary); font-size: 0.9rem; font-weight: 600; }
.loading-spinner { text-align: center; padding: 3rem; color: var(--color-muted); }
.loading-spinner i { font-size: 2rem; color: var(--color-primary); display: block; margin-bottom: 1rem; }

/* BTN BACK */
.btn-back {
    display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.6rem 1.2rem;
    border: 1px solid rgba(13,22,51,0.1); background: #fff; border-radius: 50px;
    font-family: 'Montserrat', sans-serif; font-weight: 500; font-size: 0.85rem;
    color: var(--color-text); cursor: pointer; transition: var(--transition); margin-bottom: 2rem;
}
.btn-back:hover { background: var(--color-bg); border-color: var(--color-primary); color: var(--color-primary); }

/* PROFILE GRID */
.profile-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.profile-card {
    background: #fff; border-radius: var(--radius-lg); padding: 2rem;
    border: 1px solid rgba(13,22,51,0.05); box-shadow: var(--shadow-sm);
}
.profile-card h3 {
    font-family: 'Outfit', sans-serif; font-size: 1.15rem; font-weight: 600;
    margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem;
}
.profile-card h3 i { color: var(--color-primary); }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.stat-item { text-align: center; padding: 1rem; background: var(--color-bg); border-radius: var(--radius-md); }
.stat-value { display: block; font-family: 'Playfair Display', serif; font-size: 1.5rem; font-weight: 700; color: var(--color-primary); margin-bottom: 0.25rem; }
.stat-label { font-size: 0.8rem; color: var(--color-muted); }

/* Avatar picker */
.avatar-picker { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.avatar-option {
    width: 52px; height: 52px; font-size: 1.8rem; border: 2px solid rgba(13,22,51,0.08);
    border-radius: var(--radius-sm); background: var(--color-bg); cursor: pointer;
    transition: var(--transition); display: flex; align-items: center; justify-content: center;
}
.avatar-option.active, .avatar-option:hover { border-color: var(--color-primary); background: rgba(88,193,28,0.08); transform: scale(1.1); }

/* Upsell */
.upsell-card { grid-column: span 2; display: grid; grid-template-columns: 1fr auto; gap: 1.5rem; align-items: center; background: linear-gradient(135deg, #f0fdf4 0%, #fefce8 100%); }
.upsell-badge {
    display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.4rem 1rem;
    background: var(--gradient-primary); color: #fff; border-radius: 50px;
    font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 0.75rem;
    grid-column: span 2;
}
.upsell-card h3 { grid-column: 1; margin-bottom: 0; }
.upsell-card p { grid-column: 1; font-size: 0.9rem; margin-bottom: 1rem; }
.upsell-options { grid-column: 1; display: flex; gap: 1rem; }
.upsell-btn {
    padding: 1rem 1.5rem; border-radius: var(--radius-md); border: 2px solid var(--color-primary);
    text-align: center; transition: var(--transition); display: flex; flex-direction: column;
}
.upsell-btn:hover { background: var(--color-primary); transform: translateY(-2px); }
.upsell-btn:hover .upsell-price, .upsell-btn:hover .upsell-desc { color: #fff; }
.upsell-price { font-family: 'Playfair Display', serif; font-size: 1.3rem; font-weight: 700; color: var(--color-primary); }
.upsell-desc { font-size: 0.75rem; color: var(--color-muted); }
.upsell-premium { border-color: var(--color-secondary); }
.upsell-premium .upsell-price { color: #d97706; }
.upsell-premium:hover { background: var(--color-secondary); border-color: var(--color-secondary); }
.upsell-img { grid-column: 2; grid-row: 2 / 6; max-height: 200px; object-fit: contain; border-radius: var(--radius-md); }

/* Leaderboard */
.leaderboard-card { grid-column: span 2; }
.leaderboard-tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.lb-tab {
    padding: 0.5rem 1.2rem; border: 1px solid rgba(13,22,51,0.1); background: #fff;
    border-radius: 50px; font-family: 'Montserrat', sans-serif; font-weight: 500;
    font-size: 0.8rem; cursor: pointer; transition: var(--transition);
}
.lb-tab.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.lb-row {
    display: grid; grid-template-columns: 50px 50px 1fr auto; gap: 1rem; align-items: center;
    padding: 0.8rem 1rem; border-radius: var(--radius-sm); transition: var(--transition);
}
.lb-row:nth-child(odd) { background: var(--color-bg); }
.lb-row.current-user { background: rgba(88,193,28,0.1); border: 1px solid rgba(88,193,28,0.2); }
.lb-rank { font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 1rem; color: var(--color-primary); text-align: center; }
.lb-avatar { font-size: 1.5rem; text-align: center; }
.lb-name { font-weight: 500; }
.lb-points { font-family: 'Montserrat', sans-serif; font-weight: 700; color: var(--color-primary); }

/* GAME LAYOUT */
.game-layout { display: grid; grid-template-columns: 340px 1fr; gap: 2rem; }
.game-sidebar { display: flex; flex-direction: column; gap: 1.5rem; }
.game-card {
    background: #fff; border-radius: var(--radius-lg); padding: 1.5rem;
    border: 1px solid rgba(13,22,51,0.05); box-shadow: var(--shadow-sm);
}
.game-card h3 {
    font-family: 'Outfit', sans-serif; font-size: 1rem; font-weight: 600;
    margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem;
}
.game-card h3 i { color: var(--color-primary); }
.game-card.hidden { display: none; }

/* Clues */
.clues-list { list-style: none; counter-reset: clue; padding: 0; }
.clues-list li {
    counter-increment: clue; padding: 0.6rem 0; border-bottom: 1px solid rgba(13,22,51,0.04);
    font-size: 0.9rem; line-height: 1.5; cursor: pointer; transition: var(--transition);
    position: relative; padding-left: 2rem;
}
.clues-list li::before { content: counter(clue) "."; position: absolute; left: 0; font-weight: 600; color: var(--color-primary); }
.clues-list li.crossed { text-decoration: line-through; color: var(--color-muted); opacity: 0.5; }
.clues-list li:last-child { border-bottom: none; }

/* Game top bar */
.game-top-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; flex-wrap: wrap; gap: 1rem; }
.game-info h2 { font-family: 'Outfit', sans-serif; font-size: 1.3rem; font-weight: 600; margin-bottom: 0.5rem; }
.game-meta { display: flex; gap: 1rem; align-items: center; }
.timer {
    display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.4rem 1rem;
    background: var(--color-bg); border-radius: 50px; font-family: 'Montserrat', sans-serif;
    font-weight: 600; font-size: 0.9rem;
}
.timer i { color: var(--color-secondary); }
.zoom-controls { display: flex; gap: 0.5rem; }
.zoom-btn {
    width: 36px; height: 36px; border: 1px solid rgba(13,22,51,0.1); background: #fff;
    border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition);
    font-size: 0.8rem; font-family: 'Montserrat', sans-serif; font-weight: 600;
    display: flex; align-items: center; justify-content: center;
}
.zoom-btn:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
#zoom-reset { width: auto; padding: 0 0.75rem; }

/* LOGIC GRID */
.grid-wrapper { overflow-x: auto; padding: 1rem 0; }
.logic-grid-container { transform-origin: top left; transition: transform 0.2s ease; }
.logic-grid {
    border-collapse: collapse; font-family: 'Outfit', sans-serif; font-size: 0.8rem;
    background: #fff; border-radius: var(--radius-sm); overflow: hidden;
}
.logic-grid th, .logic-grid td { border: 1px solid rgba(13,22,51,0.12); padding: 0; text-align: center; }
.logic-grid th {
    background: var(--color-bg); padding: 0.5rem 0.6rem; font-weight: 600;
    font-size: 0.75rem; white-space: nowrap;
}
.logic-grid th.cat-header { background: linear-gradient(135deg, #39c268 0%, var(--primary, #22A652) 100%); color: #fff; font-weight: 700; font-size: 0.95rem; letter-spacing: 0.5px; border-top: 3px solid #18243D !important; }
.logic-grid td.label-cell { padding: 0.4rem 0.6rem; font-weight: 500; text-align: left; background: #fafaf8; white-space: nowrap; }
.logic-grid td.grid-cell {
    width: 36px; height: 36px; min-width: 36px; cursor: pointer;
    transition: background 0.15s ease; position: relative; font-size: 1.1rem;
}
.logic-grid td.grid-cell:hover { background: rgba(88,193,28,0.08); }
.logic-grid td.grid-cell.cell-no { color: #dc2626; }
.logic-grid td.grid-cell.cell-yes { color: #22A652; background: rgba(88,193,28,0.06); font-weight: 700; font-size: 1.4rem; }
.logic-grid td.grid-cell.cell-error { background: rgba(239,68,68,0.12); }
.logic-grid .grid-border-right { border-right: 3px solid #18243D !important; }
.logic-grid .grid-border-bottom { border-bottom: 3px solid #18243D !important; }
.logic-grid .vertical-text {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    margin: 0 auto;
    padding: 0.5rem 0;
    text-align: right;
}
.logic-grid .vertical-text-left {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    margin: 0 auto;
    padding: 0.5rem 0;
}
.logic-grid th.cat-header-left {
    background: linear-gradient(135deg, #39c268 0%, var(--primary, #22A652) 100%);
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    padding: 0.5rem;
    border-left: 3px solid #18243D !important;
}

/* Game Actions */
.game-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }
.btn-game {
    padding: 0.65rem 1.2rem; font-size: 0.8rem; border-radius: var(--radius-sm);
    border: 1px solid rgba(13,22,51,0.1); background: #fff; cursor: pointer;
    font-family: 'Montserrat', sans-serif; font-weight: 600; transition: var(--transition);
    display: inline-flex; align-items: center; gap: 0.5rem; color: var(--color-text);
}
.btn-game:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-hint i { color: #f59e0b; }
.btn-pdf i { color: #dc2626; }
.btn-clear i { color: var(--color-muted); }
.btn-check-partial i { color: #0ea5e9; }
.btn-solution i { color: #8b5cf6; }
.btn-solution:hover { border-color: #8b5cf6; color: #7c3aed; }
.btn-submit { background: var(--gradient-primary); color: #fff; border: none; }
.btn-submit:hover { box-shadow: 0 6px 18px rgba(88,193,28,0.3); }

/* COMMENTS */
.comments-section { margin-top: 3rem; background: #fff; border-radius: var(--radius-lg); padding: 2rem; border: 1px solid rgba(13,22,51,0.05); box-shadow: var(--shadow-sm); }
.comments-section h3 { font-family: 'Outfit', sans-serif; font-size: 1.15rem; font-weight: 600; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem; }
.comments-section h3 i { color: var(--color-primary); }
#comment-form { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 2rem; }
#comment-text {
    flex: 1; padding: 0.75rem 1rem; border: 1px solid rgba(13,22,51,0.12);
    border-radius: var(--radius-sm); font-family: 'Outfit', sans-serif; font-size: 0.9rem;
    resize: vertical; transition: var(--transition); min-height: 60px;
}
#comment-text:focus { outline: none; border-color: var(--color-primary); }
.btn-sm { padding: 0.6rem 1.2rem; font-size: 0.8rem; }
.comment-item { padding: 1rem 0; border-bottom: 1px solid rgba(13,22,51,0.04); }
.comment-item:last-child { border-bottom: none; }
.comment-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.5rem; }
.comment-avatar { font-size: 1.5rem; }
.comment-author { font-weight: 600; font-size: 0.9rem; }
.comment-date { font-size: 0.75rem; color: var(--color-muted); margin-left: auto; }
.comment-body { font-size: 0.9rem; line-height: 1.5; padding-left: 2.5rem; }
.comment-actions { padding-left: 2.5rem; margin-top: 0.5rem; }
.comment-actions button {
    background: none; border: none; font-size: 0.75rem; color: var(--color-muted);
    cursor: pointer; transition: var(--transition); margin-right: 1rem;
}
.comment-actions button:hover { color: var(--color-primary); }
.comment-replies { margin-left: 2.5rem; border-left: 2px solid rgba(88,193,28,0.15); padding-left: 1rem; }

/* MODAL */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 3000;
    background: rgba(13,22,51,0.5); backdrop-filter: blur(6px); display: flex;
    align-items: center; justify-content: center; opacity: 1; transition: var(--transition);
}
.modal-overlay.hidden { opacity: 0; pointer-events: none; }
.modal-card {
    background: #fff; border-radius: var(--radius-lg); padding: 3rem; text-align: center;
    max-width: 440px; width: 90%; box-shadow: var(--shadow-premium);
    animation: modalIn 0.4s ease;
}
.modal-card-wide {
    max-width: 680px; width: 95%; max-height: 90vh; overflow-y: auto; text-align: left; padding: 2rem 2.5rem;
}
.solution-summary-table {
    width: 100%; border-collapse: collapse; font-size: 0.88rem; background: #fff;
    border-radius: var(--radius-sm); overflow: hidden; border: 1px solid rgba(13,22,51,0.08);
}
.solution-summary-table th {
    background: #168A3A; color: #fff; padding: 0.65rem 0.9rem; font-weight: 600; text-align: left; font-size: 0.85rem;
}
.solution-summary-table td {
    padding: 0.65rem 0.9rem; border-bottom: 1px solid #f0f0f0; vertical-align: middle;
}
.solution-summary-table tr:nth-child(even) td {
    background: #fafaf8;
}
.solution-summary-table tr:hover td {
    background: #f0fdf4;
}
.solution-tag {
    display: inline-block; background: #eaf5ec; color: #168a3a; font-weight: 600;
    padding: 0.2rem 0.6rem; border-radius: 4px; font-size: 0.85rem;
}
@keyframes modalIn { from { transform: scale(0.9) translateY(20px); opacity: 0; } to { transform: scale(1) translateY(0); opacity: 1; } }
.modal-icon { font-size: 3.5rem; margin-bottom: 1rem; }
.modal-card h2 { margin-bottom: 0.75rem; }
.modal-card p { margin-bottom: 1.5rem; }
.modal-stats { display: flex; justify-content: center; gap: 2rem; margin-bottom: 2rem; }
.modal-stat { text-align: center; }
.modal-stat-val { display: block; font-family: 'Playfair Display', serif; font-size: 1.8rem; font-weight: 700; color: var(--color-primary); }
.modal-stat-lbl { font-size: 0.8rem; color: var(--color-muted); }

/* TASK NUMBER BADGE */
.task-number-badge {
    display: inline-block;
    padding: 0.25rem 0.6rem; border-radius: var(--radius-sm);
    font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 0.75rem;
    letter-spacing: 0.05em; color: #fff;
}
.task-number-badge.diff-beginner { background: linear-gradient(135deg, #168A3A, #22c55e); }
.task-number-badge.diff-advanced { background: linear-gradient(135deg, #0284c7, #38bdf8); }
.task-number-badge.diff-expert { background: linear-gradient(135deg, #d97706, #fbbf24); }
.task-number-badge.diff-detective { background: linear-gradient(135deg, #dc2626, #f87171); }

/* SOLVED BADGE (updated with text) – v hlavičce karty, nepřekrývá tlačítko Hrát */
.solved-badge {
    position: static;
    display: inline-flex; align-items: center; gap: 0.35rem;
    padding: 0.25rem 0.75rem; border-radius: 50px;
    background: rgba(88,193,28,0.12); color: var(--color-primary);
    font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 0.7rem;
    letter-spacing: 0.02em;
}
.solved-badge i { font-size: 0.85rem; }

/* HERO INFO BOX (nepřihlášený uživatel) */
.hero-info-box {
    padding: 1rem 1.25rem; border-radius: var(--radius-md);
    background: rgba(88,193,28,0.06); border: 1px solid rgba(88,193,28,0.15);
    margin-top: 1rem;
}
.hero-info-box p { margin: 0; font-size: 0.9rem; line-height: 1.5; }
.hero-info-box p i { color: var(--color-primary); margin-right: 0.35rem; }
.hero-info-box .info-subtle {
    margin-top: 0.35rem; font-size: 0.8rem; color: var(--color-muted);
}

/* SCORING RULES CARD */
.scoring-rules-card {
    margin-top: 3rem; background: #fff; border-radius: var(--radius-lg);
    padding: 2rem; border: 1px solid rgba(13,22,51,0.05);
    box-shadow: var(--shadow-sm);
}
.scoring-rules-card h3 {
    font-family: 'Outfit', sans-serif; font-size: 1.15rem; font-weight: 600;
    margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem;
}
.scoring-rules-card h3 i { color: var(--color-secondary); }
.scoring-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem;
}
.scoring-item {
    display: flex; align-items: flex-start; gap: 0.75rem;
    padding: 0.75rem; border-radius: var(--radius-md);
    background: var(--color-bg); transition: var(--transition);
}
.scoring-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.scoring-icon {
    display: flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; min-width: 36px; border-radius: 50%;
    background: rgba(88,193,28,0.12); color: var(--color-primary); font-size: 1rem;
}
.scoring-icon.scoring-warn { background: rgba(245,158,11,0.12); color: #d97706; }
.scoring-icon.scoring-hint { background: rgba(245,158,11,0.15); color: #f59e0b; }
.scoring-icon.scoring-min { background: rgba(14,165,233,0.12); color: #0284c7; }
.scoring-item strong { font-family: 'Montserrat', sans-serif; font-size: 0.85rem; display: block; margin-bottom: 0.15rem; }
.scoring-item p { font-size: 0.75rem; color: var(--color-muted); margin: 0; line-height: 1.3; }

/* SUPPORT PROMO CARD */
.support-promo-card {
    margin-top: 2rem; border-radius: var(--radius-lg); overflow: hidden;
    background: linear-gradient(135deg, #fef3c7 0%, #fce7f3 50%, #e0e7ff 100%);
    border: 1px solid rgba(247,196,0,0.2);
    box-shadow: var(--shadow-sm);
}
.support-promo-content {
    display: flex; align-items: center; gap: 1.5rem;
    padding: 2rem;
}
.support-promo-icon {
    width: 56px; height: 56px; min-width: 56px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%; background: rgba(239,68,68,0.12);
    font-size: 1.5rem; color: #dc2626;
}
.support-promo-text { flex: 1; }
.support-promo-text h3 {
    font-family: 'Outfit', sans-serif; font-size: 1.1rem; font-weight: 600;
    margin: 0 0 0.4rem;
}
.support-promo-text p {
    font-size: 0.9rem; color: var(--color-muted); margin: 0; line-height: 1.5;
}
.btn-support {
    display: inline-flex; align-items: center; gap: 0.6rem;
    padding: 0.8rem 1.5rem; border-radius: var(--radius-md);
    background: linear-gradient(135deg, #dc2626, #ef4444);
    color: #fff !important; font-family: 'Montserrat', sans-serif;
    font-weight: 600; font-size: 0.85rem; white-space: nowrap;
    transition: var(--transition); border: none; cursor: pointer;
    text-decoration: none;
}
.btn-support:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(220,38,38,0.3); }
.btn-support i { font-size: 1.1rem; }

/* GAME AUTH SECTION (inline, above discussion) */
.game-auth-section {
    margin-top: 2.5rem; margin-bottom: 0.5rem;
}
.auth-info-banner {
    display: flex; align-items: center; gap: 0.6rem;
    padding: 0.6rem 1rem; border-radius: var(--radius-md) var(--radius-md) 0 0;
    background: linear-gradient(135deg, rgba(14,165,233,0.08), rgba(88,193,28,0.06));
    border: 1px solid rgba(14,165,233,0.15); border-bottom: none;
    font-size: 0.8rem; font-weight: 500;
}
.auth-info-banner i { color: #0ea5e9; font-size: 0.95rem; }
.btn-forgot-password {
    display: inline-flex; align-items: center; gap: 0.5rem;
    margin-top: 0.75rem; padding: 0.6rem 1rem;
    background: transparent; border: 1px solid rgba(247,196,0,0.3);
    border-radius: var(--radius-sm); color: var(--color-secondary);
    font-family: 'Montserrat', sans-serif; font-size: 0.8rem; font-weight: 600;
    cursor: pointer; transition: var(--transition);
}
.btn-forgot-password:hover {
    background: rgba(247,196,0,0.1); border-color: var(--color-secondary);
    color: #b45309;
}
.btn-forgot-password:disabled { opacity: 0.6; cursor: wait; }
.btn-forgot-password i { font-size: 0.85rem; }

.auth-benefits {
    margin-top: 1.5rem; padding: 1rem 1.25rem;
    background: rgba(88,193,28,0.04); border-radius: var(--radius-md);
    border: 1px solid rgba(88,193,28,0.1);
}
.auth-benefits p { margin: 0; font-size: 0.9rem; line-height: 1.5; }
.auth-benefits p i { color: var(--color-primary); margin-right: 0.4rem; }
.auth-benefits .benefits-detail {
    margin-top: 0.4rem; font-size: 0.8rem; color: var(--color-muted);
}

/* RESPONSIVE */
@media (max-width: 991px) {

    .zebry-hero-grid { grid-template-columns: 1fr; }
    .zebry-hero-image { order: -1; max-width: 400px; margin: 0 auto 1.5rem; }
    .hero-bottom-row { grid-template-columns: 1fr; }
    .bottom-two-col { grid-template-columns: 1fr; }
    .game-layout { grid-template-columns: 1fr; }
    .game-sidebar { order: -1; }
    .profile-grid { grid-template-columns: 1fr; }
    .upsell-card, .leaderboard-card { grid-column: span 1; }
    .upsell-card { grid-template-columns: 1fr; }
    .upsell-img { grid-column: 1; grid-row: auto; max-height: 150px; justify-self: center; }
    .upsell-badge { grid-column: 1; }
    .scoring-grid { grid-template-columns: 1fr; }
}
@media (max-width: 767px) {
    .zebry-hero { padding-top: 110px; }
    .tasks-grid { grid-template-columns: 1fr; }
    .tasks-toolbar { width: 100%; justify-content: space-between; }
    .task-card { flex-direction: column; align-items: stretch; padding: 1rem 1.1rem; }
    .task-card-content { width: 100%; }
    .task-card p, .task-story { white-space: normal; -webkit-line-clamp: 2; display: -webkit-box; -webkit-box-orient: vertical; }
    .task-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; margin-top: 0.6rem; padding-top: 0.6rem; border-top: 1px solid #f0f4ee; width: 100%; }
    .task-play-btn { width: 38px; height: 38px; min-width: 38px; border-radius: 50%; }
    .task-play-btn::after { content: none; }
    .task-play-btn i { margin-right: 0; }
    
    .stats-grid { grid-template-columns: 1fr; }
    .game-actions { flex-direction: column; }
    .game-actions .btn-game { width: 100%; justify-content: center; }
    #comment-form, #list-comment-form { flex-direction: column; }
    .section-header { flex-direction: column; align-items: stretch; gap: 1rem; }
    .btn-game span { display: inline; }
}

/* PRINT */
@media print {
    .main-header, .mobile-menu-overlay, .main-footer, .cookie-banner-wrapper,
    .game-actions, .auth-widget, .comments-section, .btn-back, .zoom-controls,
    .game-sidebar .hints-card, .list-auth-section, .hero-scoring,
    .support-promo-bar, .show-more-wrapper { display: none !important; }
    .game-layout { grid-template-columns: 1fr !important; }
    .logic-grid { font-size: 9pt; }
    .view { display: block !important; padding: 0; }
}


/* ===== HERO (kompaktní moderní podoba) ===== */
.zh-hero {
    position: relative; overflow: hidden;
    background: radial-gradient(circle at 12% 20%, #ffffff 0%, #f5faf0 45%, #eaf5e2 100%);
    border-bottom: 1px solid #e3ecdc;
}
.zh-hero-img {
    position: absolute; top: 0; right: 0; height: 100%; width: 55%;
    object-fit: cover; object-position: 84% center; pointer-events: none;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.3) 12%, rgba(0,0,0,0.85) 26%, #000 38%, #000 100%);
            mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.3) 12%, rgba(0,0,0,0.85) 26%, #000 38%, #000 100%);
}
.zh-hero-inner { position: relative; z-index: 2; min-height: 270px; display: flex; align-items: center; }
.zh-hero-content { max-width: 520px; padding: 1.6rem 0 1rem; }
.zh-eyebrow {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.28rem 0.8rem; border-radius: 50px;
    background: #fff; border: 1px solid rgba(34,166,82,0.25); color: #168A3A;
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
    box-shadow: 0 2px 8px rgba(22,138,58,0.08);
}
.zh-title {
    font-size: clamp(1.65rem, 2.7vw, 2.35rem); font-weight: 800; line-height: 1.1;
    margin: 0.55rem 0 0.45rem; color: #18243D; letter-spacing: -0.02em;
}
.zh-title span {
    display: block;
    background: linear-gradient(90deg, #168A3A, #39c268);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.zh-lead { font-size: 0.92rem; line-height: 1.5; color: #4a5a4a; margin: 0 0 0.85rem; max-width: 450px; }
.zh-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.65rem; margin-bottom: 0.85rem; }
.zh-btn-main {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.65rem 1.35rem; border-radius: 50px; font-weight: 700; font-size: 0.88rem; text-decoration: none;
    background: linear-gradient(135deg, #168A3A, #22A652); color: #fff !important; border: none;
    box-shadow: 0 6px 16px rgba(34,166,82,0.25);
    transition: all 0.2s ease;
}
.zh-btn-main:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(34,166,82,0.32); }
.zh-btn-ghost {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.6rem 1.05rem; border-radius: 50px; text-decoration: none; font-size: 0.84rem;
    background: rgba(255,255,255,0.85); border: 1px solid #d6e4cf; color: #18243D; font-weight: 600;
    transition: all 0.2s;
}
.zh-btn-ghost:hover { border-color: #22A652; color: #168A3A; }
.zh-levels { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.55rem; }
.zh-level {
    display: inline-flex; align-items: center; gap: 0.3rem;
    padding: 0.22rem 0.65rem; border-radius: 50px; font-size: 0.72rem; font-weight: 700;
    background: #fff;
}
.zh-level.diff-beginner { color: #168A3A; border: 1px solid rgba(22,138,58,0.25); }
.zh-level.diff-advanced { color: #0284c7; border: 1px solid rgba(2,132,199,0.25); }
.zh-level.diff-expert { color: #d97706; border: 1px solid rgba(217,119,6,0.25); }
.zh-level.diff-detective { color: #dc2626; border: 1px solid rgba(220,38,38,0.25); }
.zh-count { font-size: 0.82rem; color: #5a6a5a; margin: 0; }
.zh-count strong { color: #168A3A; font-size: 0.95rem; }

.zh-howto {
    position: relative; z-index: 2; list-style: none; padding: 0; margin: 0 0 1.25rem;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem;
}
.zh-howto li {
    display: flex; gap: 0.65rem; align-items: flex-start;
    background: rgba(255,255,255,0.92); backdrop-filter: blur(6px);
    border: 1px solid #e3ecdc; border-radius: 12px; padding: 0.65rem 0.85rem;
    box-shadow: 0 3px 10px rgba(24,36,61,0.04);
    font-size: 0.8rem; color: #5a6a5a; line-height: 1.35;
}
.zh-howto li > span {
    flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #22A652, #39c268); color: #fff; font-weight: 800; font-size: 0.75rem;
}
.zh-howto strong { display: block; color: #18243D; font-size: 0.86rem; margin-bottom: 0.05rem; }

@media (max-width: 992px) {
    .zh-hero-img { width: 50%; object-position: 84% center; }
    .zh-hero-content { max-width: 460px; }
}

@media (max-width: 768px) {
    .zh-hero-img { width: 100%; opacity: 0.22; object-position: 82% center; -webkit-mask-image: none; mask-image: none; }
    .zh-hero-inner { min-height: 0; }
    .zh-hero-content { padding: 1.25rem 0 0.85rem; max-width: 100%; }
    .zh-howto { grid-template-columns: 1fr; gap: 0.5rem; }
}

/* ===== Tlačítka pod tabulkou odpovědí ===== */
.answer-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; }
.btn-fill-grid {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: #fff; color: #168A3A; border: 2px solid #22A652; border-radius: 50px;
    font-weight: 600; cursor: pointer; transition: all 0.2s; padding: 0.7rem 1.3rem;
}
.btn-fill-grid:hover { background: #eaf5ec; transform: translateY(-2px); }