/* ==========================================================
   MULTI-VIEW NAVIGATION & PANELS
   ========================================================== */
.view-panel {
    display: none;
    flex-direction: column;
    width: 100%;
    flex: 1;
    overflow-y: auto;
    padding-bottom: 74px; /* space for global bottom nav */
}

.view-panel.active {
    display: flex;
}

/* Back button in headers */
.btn-back-home {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.btn-back-home:hover {
    color: var(--primary);
    background: var(--primary-soft);
}

.header-view-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ==========================================================
   HOME PAGE STYLING
   ========================================================== */
.home-profile-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, var(--bg-card), var(--bg-surface-elevated));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    margin-bottom: 12px;
}

.home-profile-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.home-profile-avatar {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--bg-surface-elevated);
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 0 10px var(--primary-glow);
}

.home-profile-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.home-profile-name {
    font-size: 1rem;
    font-weight: 700;
    color: #ffffff;
}

.home-profile-badges {
    display: flex;
    align-items: center;
    gap: 6px;
}

.badge-elo {
    font-size: 0.72rem;
    font-weight: 700;
    background: rgba(56, 189, 248, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(56, 189, 248, 0.3);
    padding: 1px 6px;
    border-radius: 6px;
}

.badge-streak {
    font-size: 0.72rem;
    font-weight: 700;
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-gold);
    border: 1px solid rgba(245, 158, 11, 0.3);
    padding: 1px 6px;
    border-radius: 6px;
}

/* Hero Quick Play Banner */
.home-hero-card {
    background: linear-gradient(135deg, #064e3b 0%, #065f46 50%, #047857 100%);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 8px 24px rgba(6, 95, 70, 0.35);
    border: 1px solid rgba(16, 185, 129, 0.4);
    margin-bottom: 16px;
    cursor: pointer;
    transition: all 0.22s ease;
}

.home-hero-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(6, 95, 70, 0.45);
}

.home-hero-card:active {
    transform: scale(0.98);
}

.hero-text-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-badge {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 2px 8px;
    border-radius: 12px;
}

.hero-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.3px;
}

.hero-sub {
    font-size: 0.8rem;
    color: #a7f3d0;
}

.hero-action-btn {
    background: #ffffff;
    color: #065f46;
    font-weight: 800;
    font-size: 0.85rem;
    padding: 10px 16px;
    border-radius: 12px;
    border: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

/* ==========================================================
   2 BY 2 FEATURE GRID (Requested Layout)
   ========================================================== */
.home-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.home-section-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-secondary);
}

.home-grid-2x2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.grid-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 14px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 130px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.grid-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: transparent;
    transition: all 0.2s ease;
}

.grid-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-highlight);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.grid-card:active {
    transform: scale(0.96);
}

/* Card Themes */
.grid-card.card-online {
    background: linear-gradient(145deg, var(--bg-card) 60%, rgba(16, 185, 129, 0.08));
}
.grid-card.card-online::before { background: var(--primary); }
.grid-card.card-online:hover { border-color: var(--primary); }

.grid-card.card-bot {
    background: linear-gradient(145deg, var(--bg-card) 60%, rgba(56, 189, 248, 0.08));
}
.grid-card.card-bot::before { background: var(--accent-blue); }
.grid-card.card-bot:hover { border-color: var(--accent-blue); }

.grid-card.card-quiz {
    background: linear-gradient(145deg, var(--bg-card) 60%, rgba(245, 158, 11, 0.08));
}
.grid-card.card-quiz::before { background: var(--accent-gold); }
.grid-card.card-quiz:hover { border-color: var(--accent-gold); }

.grid-card.card-training {
    background: linear-gradient(145deg, var(--bg-card) 60%, rgba(168, 85, 247, 0.08));
}
.grid-card.card-training::before { background: #a855f7; }
.grid-card.card-training:hover { border-color: #a855f7; }

.grid-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.grid-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
}

.grid-card-badge {
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 6px;
    text-transform: uppercase;
}

.badge-live {
    background: rgba(16, 185, 129, 0.15);
    color: var(--primary);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-bot {
    background: rgba(56, 189, 248, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.badge-quiz {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-gold);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-training {
    background: rgba(168, 85, 247, 0.15);
    color: #c084fc;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

.grid-card-bottom {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-top: 12px;
}

.grid-card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.grid-card-sub {
    font-size: 0.72rem;
    color: var(--text-secondary);
    line-height: 1.25;
}

/* Home Quick Stats Row */
.home-stats-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.home-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.home-stat-val {
    font-size: 1.15rem;
    font-weight: 800;
    color: #ffffff;
}

.home-stat-lbl {
    font-size: 0.68rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* ==========================================================
   GLOBAL BOTTOM NAVIGATION BAR (Home, Friends, Quiz, Profile, Settings)
   ========================================================== */
.global-bottom-nav {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: #0d141e;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 8px 4px 10px;
    z-index: 50;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 600;
    cursor: pointer;
    flex: 1;
    position: relative;
    transition: all 0.18s ease;
    padding: 4px 0;
}

.nav-item svg {
    width: 22px;
    height: 22px;
    transition: transform 0.18s ease;
}

.nav-item.active {
    color: var(--primary);
}

.nav-item.active svg {
    transform: translateY(-2px);
    stroke: var(--primary);
}

.nav-badge-count {
    position: absolute;
    top: 0px;
    right: 22%;
    background: var(--accent-red);
    color: #ffffff;
    font-size: 0.62rem;
    font-weight: 800;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    border: 2px solid #0d141e;
}

/* ==========================================================
   TOP IN-GAME ACTIONS TOOLBAR (Under Opponent Card)
   ========================================================== */
.game-top-actions {
    display: flex;
    align-items: center;
    justify-content: space-around;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 4px 6px;
    margin: 4px 0 6px;
    gap: 4px;
}

.game-top-actions .ctrl-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 0.78rem;
    font-weight: 700;
    border-radius: 8px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    flex: 1;
    transition: all 0.18s ease;
}

.game-top-actions .ctrl-btn svg {
    width: 16px;
    height: 16px;
}

.game-top-actions .ctrl-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary);
}

.game-top-actions .ctrl-btn:disabled {
    opacity: 0.35;
    pointer-events: none;
}

/* AFK / First Move Warning Banner */
.afk-banner {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--accent-red);
    color: #fca5a5;
    font-size: 0.76rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    animation: pulse-red 1s infinite alternate;
}

/* ==========================================================
   FRIENDS VIEW STYLES
   ========================================================== */
.friends-search-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.friends-search-input {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 0.85rem;
    outline: none;
}

.friends-search-input:focus {
    border-color: var(--primary);
}

.btn-add-friend {
    background: var(--primary);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0 16px;
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.btn-add-friend:hover {
    background: var(--primary-hover);
}

.friends-subtabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 12px;
    gap: 4px;
}

.friends-subtab-btn {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 700;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.friends-subtab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.requests-badge {
    background: var(--accent-red);
    color: #ffffff;
    font-size: 0.65rem;
    font-weight: 800;
    padding: 1px 6px;
    border-radius: 10px;
}

.request-actions {
    display: flex;
    gap: 6px;
}

.btn-req-accept {
    background: var(--primary);
    color: #ffffff;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-req-accept:hover {
    background: var(--primary-hover);
}

.btn-req-decline {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-req-decline:hover {
    color: var(--accent-red);
    border-color: var(--accent-red);
}

/* ==========================================================
   SETTINGS SCREEN STYLES (NEW!)
   ========================================================== */
.settings-group {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
    margin-bottom: 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.settings-group-title {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* 4 Piece Styles Grid */
.piece-styles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.piece-style-card {
    background: var(--bg-surface-elevated);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.piece-style-card:hover {
    border-color: var(--border-highlight);
}

.piece-style-card.active {
    border-color: var(--primary);
    background: var(--primary-soft);
    box-shadow: 0 0 12px var(--primary-glow);
}

.piece-style-preview {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 38px;
}

.piece-style-preview svg {
    width: 32px;
    height: 32px;
}

.piece-style-name {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Board Themes Grid */
.board-themes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.theme-card {
    background: var(--bg-surface-elevated);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.theme-card.active {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.theme-swatch {
    width: 34px;
    height: 34px;
    border-radius: 6px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.15);
    flex-shrink: 0;
}

.swatch-emerald .sq1, .swatch-emerald .sq4 { background: #eeeed2; }
.swatch-emerald .sq2, .swatch-emerald .sq3 { background: #769656; }

.swatch-wood .sq1, .swatch-wood .sq4 { background: #f0d9b5; }
.swatch-wood .sq2, .swatch-wood .sq3 { background: #b58863; }

.swatch-ocean .sq1, .swatch-ocean .sq4 { background: #dee3e6; }
.swatch-ocean .sq2, .swatch-ocean .sq3 { background: #8ca2ad; }

.swatch-darkglass .sq1, .swatch-darkglass .sq4 { background: #334155; }
.swatch-darkglass .sq2, .swatch-darkglass .sq3 { background: #1e293b; }

.theme-info {
    display: flex;
    flex-direction: column;
}

.theme-name {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
}

.theme-sub {
    font-size: 0.68rem;
    color: var(--text-muted);
}

/* ==========================================================
   QUIZ & TACTICS VIEW STYLES
   ========================================================== */
.quiz-header-card {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-surface-elevated));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.quiz-instruction-banner {
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    color: var(--accent-gold);
    font-size: 0.82rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 8px;
}

.quiz-board-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2px 0;
}

.quiz-feedback-box {
    margin-top: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    display: none;
}

.quiz-feedback-box.success {
    display: block;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--primary);
    color: #a7f3d0;
}

.quiz-feedback-box.error {
    display: block;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--accent-red);
    color: #fca5a5;
}

.quiz-actions-row {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

/* ==========================================================
   USER PROFILE VIEW STYLES
   ========================================================== */
.profile-card-large {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
    margin-bottom: 14px;
}

.profile-avatar-large {
    width: 68px;
    height: 68px;
    border-radius: 20px;
    background: var(--bg-surface-elevated);
    border: 3px solid var(--primary);
    box-shadow: 0 0 16px var(--primary-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
}

.profile-name-large {
    font-size: 1.3rem;
    font-weight: 800;
    color: #ffffff;
}

.profile-ratings-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    width: 100%;
    margin-top: 8px;
}

.rating-box {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px;
    text-align: center;
}

.rating-val {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary);
}

.rating-lbl {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin-bottom: 6px;
}

.history-result-win {
    color: var(--primary);
    font-weight: 700;
    font-size: 0.85rem;
}

.history-result-loss {
    color: var(--accent-red);
    font-weight: 700;
    font-size: 0.85rem;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    pointer-events: none;
    width: 90%;
    max-width: 360px;
}

.toast {
    background: #1e293b;
    border: 1px solid var(--primary);
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: toast-slide 0.25s ease-out;
}

@keyframes toast-slide {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================
   MOVE TAPE BREADCRUMB SLIDER & STEPPER
   ========================================================== */
.move-tape-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 4px 6px;
    margin: 2px 0 6px 0;
    min-height: 38px;
    position: relative;
    user-select: none;
}

.tape-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.15s ease;
}

.tape-nav-btn:hover:not(:disabled) {
    color: var(--text-primary);
    border-color: var(--primary);
    background: rgba(16, 185, 129, 0.15);
}

.tape-nav-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.move-tape-scroll {
    flex: 1;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    scrollbar-width: none;
    -ms-overflow-style: none;
    touch-action: pan-x;
    display: flex;
    align-items: center;
    padding: 2px 4px;
}

.move-tape-scroll::-webkit-scrollbar {
    display: none;
}

.move-tape-list {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.tape-start-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 600;
    padding: 2px 6px;
}

.tape-move-chip {
    display: inline-flex;
    align-items: center;
    font-size: 0.76rem;
    font-weight: 700;
    padding: 3px 7px;
    border-radius: 6px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.tape-move-chip .chip-num {
    color: var(--text-muted);
    margin-right: 3px;
    font-size: 0.7rem;
}

.tape-move-chip:hover {
    border-color: var(--primary);
    color: #ffffff;
}

.tape-move-chip.active {
    background: rgba(16, 185, 129, 0.2);
    border-color: var(--primary);
    color: var(--primary-light);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
}

.tape-live-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    font-size: 0.7rem;
    font-weight: 800;
    color: #ffffff;
    background: var(--primary);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    flex-shrink: 0;
    animation: pulse-live 1.2s infinite;
}

@keyframes pulse-live {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.85; transform: scale(1.04); }
}

.tape-live-btn .live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #ffffff;
    animation: blink 0.8s infinite alternate;
}

/* ==========================================================
   RANDOM ELO MATCHMAKING RADAR
   ========================================================== */
.matchmaking-card {
    text-align: center;
    padding: 24px 20px;
    max-width: 360px;
}

.radar-container {
    position: relative;
    width: 140px;
    height: 140px;
    margin: 10px auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.radar-pulse {
    position: absolute;
    border: 2px solid rgba(16, 185, 129, 0.4);
    border-radius: 50%;
    animation: radar-ripple 2s cubic-bezier(0.2, 0.8, 0.4, 1) infinite;
}

.radar-pulse.ring-1 { width: 45px; height: 45px; animation-delay: 0s; }
.radar-pulse.ring-2 { width: 90px; height: 90px; animation-delay: 0.6s; }
.radar-pulse.ring-3 { width: 135px; height: 135px; animation-delay: 1.2s; }

@keyframes radar-ripple {
    0% { transform: scale(0.6); opacity: 0.8; }
    100% { transform: scale(1.3); opacity: 0; }
}

.radar-sweep {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: conic-gradient(from 0deg, transparent 0deg 270deg, rgba(16, 185, 129, 0.25) 360deg);
    animation: radar-spin 2s linear infinite;
    pointer-events: none;
}

@keyframes radar-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.radar-center-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    z-index: 2;
    box-shadow: 0 0 16px rgba(16, 185, 129, 0.5);
}

.matchmaking-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.matchmaking-sub {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.matchmaking-timer {
    font-family: monospace;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-light);
    letter-spacing: 1px;
}

.matchmaking-found-box {
    margin-top: 14px;
    padding: 12px;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid var(--primary);
    border-radius: var(--radius-md);
    animation: toast-slide 0.3s ease;
}

.matchmaking-opponent-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.matchmaking-opponent-preview .found-avatar {
    font-size: 1.6rem;
    background: var(--bg-surface-elevated);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--primary);
}

.matchmaking-opponent-preview .found-name {
    font-weight: 800;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.matchmaking-opponent-preview .found-elo {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--primary);
}

.matchmaking-status-badge {
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--primary-light);
    letter-spacing: 0.5px;
}

/* ==========================================================================
   AUTHENTICATION & ACCOUNT MODAL STYLES
   ========================================================================== */
.header-auth-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 9999px;
    padding: 4px 9px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.header-auth-btn:hover {
    border-color: var(--primary);
    background: rgba(16, 185, 129, 0.12);
    transform: translateY(-1px);
}

.header-auth-btn.logged-in {
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.08);
}

.header-auth-btn .auth-icon {
    font-size: 1rem;
    line-height: 1;
}

.header-auth-btn .auth-label {
    font-size: 0.78rem;
    font-weight: 700;
    max-width: 90px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.auth-card {
    max-width: 380px;
    width: 92%;
    padding: 22px 24px;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-subtle);
}

.auth-tabs {
    display: flex;
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    padding: 3px;
    margin-bottom: 18px;
    border: 1px solid var(--border-subtle);
}

.auth-tab {
    flex: 1;
    padding: 9px 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.auth-tab.active {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.35);
}

.auth-alert {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 14px;
    text-align: center;
    line-height: 1.4;
    transition: all 0.2s ease;
}

.auth-alert.error {
    background: rgba(239, 68, 68, 0.14);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #fca5a5;
}

.auth-alert.success {
    background: rgba(16, 185, 129, 0.14);
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: #6ee7b7;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.auth-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
    text-align: left;
}

.auth-form .form-group label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.auth-form .form-group input {
    width: 100%;
    padding: 11px 13px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    box-sizing: border-box;
}

.auth-form .form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.avatar-picker {
    display: flex;
    gap: 8px;
    justify-content: space-between;
    padding: 4px 0;
}

.avatar-opt {
    flex: 1;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.avatar-opt:hover {
    transform: scale(1.08);
    border-color: rgba(16, 185, 129, 0.4);
}

.avatar-opt.active {
    border-color: var(--primary);
    background: rgba(16, 185, 129, 0.15);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.35);
}

.auth-footer {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
}

.btn-guest {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s ease;
}

.btn-guest:hover {
    color: var(--text-primary);
}