/* ==========================================================================
   FlowTap - UI Components (HUD, Bottom Controls, Modals & Dialogs)
   ========================================================================== */

/* --- Top Header HUD --- */
.game-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border-radius: var(--radius-lg);
    z-index: 10;
    gap: 12px;
    background: rgba(13, 20, 38, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-center {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Icon Buttons (Header) */
.icon-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: scale(1.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
    box-shadow: 0 0 12px var(--accent-glow);
}

.icon-btn:active {
    transform: scale(0.92);
}

/* Level Info Badge */
.level-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.level-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: #ffffff;
}

.difficulty-badge {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 2px 8px;
    border-radius: 12px;
    width: fit-content;
    border: 1px solid var(--success);
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

/* Stats Pill (Moves & Timer) */
.stat-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 0, 0, 0.3);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.82rem;
    color: var(--text-secondary);
    backdrop-filter: blur(8px);
    transition: border-color 0.3s ease;
}

.stat-pill:hover {
    border-color: rgba(255, 255, 255, 0.12);
}

.stat-val {
    font-family: var(--font-mono);
    font-weight: 700;
    color: #ffffff;
    min-width: 28px;
    text-align: right;
}

/* Coin Badge */
.coin-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(251, 191, 36, 0.12);
    border: 1px solid rgba(251, 191, 36, 0.35);
    padding: 6px 14px;
    border-radius: 20px;
    color: var(--gold);
    font-weight: 700;
    font-size: 0.92rem;
}

.coin-icon {
    font-size: 1rem;
}

/* --- Bottom Controls Dock --- */
.bottom-dock {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    padding: 12px 24px;
    border-radius: var(--radius-xl);
    z-index: 10;
    margin-bottom: 8px;
    background: rgba(13, 20, 38, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.control-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    min-width: 80px;
    height: 72px;
    border-radius: var(--radius-md);
    cursor: pointer;
    position: relative;
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
}

/* Subtle inner highlight */
.control-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.control-btn:hover:not(:disabled)::before {
    opacity: 1;
}

/* Ripple effect on click */
.control-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease, opacity 0.4s ease;
    opacity: 0;
}

.control-btn:active:not(:disabled)::after {
    width: 120px;
    height: 120px;
    opacity: 1;
    transition: width 0s, height 0s, opacity 0s;
}

.control-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.control-btn:active:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.control-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    filter: grayscale(0.5);
}

/* SVG Icon Container */
.btn-icon-svg {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    transition: all 0.25s ease;
}

.control-btn:hover:not(:disabled) .btn-icon-svg {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
    transform: scale(1.08);
}

.btn-icon-svg svg {
    flex-shrink: 0;
}

.btn-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    transition: color 0.25s ease;
}

.control-btn:hover:not(:disabled) .btn-label {
    color: var(--text-secondary);
}

/* Coin Badge on Hint */
.btn-badge {
    position: absolute;
    top: -7px;
    right: -7px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #1a1200;
    font-size: 0.6rem;
    font-weight: 800;
    padding: 3px 7px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(251, 191, 36, 0.4);
    display: flex;
    align-items: center;
    gap: 3px;
    z-index: 2;
    letter-spacing: -0.2px;
}

.btn-badge svg {
    flex-shrink: 0;
}

/* Primary Action Highlight - Hint Button */
.control-btn.hint-btn {
    border-color: rgba(251, 191, 36, 0.25);
    background: rgba(251, 191, 36, 0.06);
    min-width: 88px;
}

.control-btn.hint-btn:hover:not(:disabled) {
    border-color: rgba(251, 191, 36, 0.5);
    background: rgba(251, 191, 36, 0.12);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 20px rgba(251, 191, 36, 0.15);
}

.hint-glow {
    color: var(--gold) !important;
    background: rgba(251, 191, 36, 0.1) !important;
}

.control-btn.hint-btn:hover:not(:disabled) .hint-glow {
    background: rgba(251, 191, 36, 0.2) !important;
    box-shadow: 0 0 12px rgba(251, 191, 36, 0.2);
}

.control-btn.hint-btn .btn-label {
    color: rgba(251, 191, 36, 0.6);
}

.control-btn.hint-btn:hover:not(:disabled) .btn-label {
    color: var(--gold);
}

/* --- Toast Notification --- */
.game-toast {
    position: absolute;
    top: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: rgba(15, 23, 42, 0.92);
    border: 1px solid var(--accent-color);
    color: #ffffff;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.88rem;
    font-weight: 600;
    box-shadow: var(--shadow-glow);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 100;
}

.game-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* --- Modal Overlays & Cards --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(5, 8, 16, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1000;
    padding: 16px;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: #111a2e;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 440px;
    padding: 28px 24px;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    transform: scale(0.92);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 4px;
}

.modal-close-btn:hover {
    color: #ffffff;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 6px;
    text-align: center;
    color: #ffffff;
}

.modal-subtitle {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    text-align: center;
}

/* --- Victory Modal Elements --- */
.victory-icon {
    font-size: 3.5rem;
    margin-bottom: 10px;
    filter: drop-shadow(0 0 16px var(--accent-glow));
}

.stars-row {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 12px 0 20px;
}

.star-icon {
    font-size: 2.8rem;
    color: #24324f;
    transition: all 0.3s ease;
}

.star-icon.earned {
    color: var(--gold);
    text-shadow: 0 0 20px var(--gold-glow);
    animation: starPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.victory-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    width: 100%;
    margin-bottom: 24px;
}

.victory-stat-box {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    padding: 12px 8px;
    text-align: center;
}

.stat-box-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-box-val {
    font-size: 1.15rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: #ffffff;
}

.stat-box-val.gold {
    color: var(--gold);
}

.modal-actions {
    display: flex;
    gap: 12px;
    width: 100%;
}

.btn-modal {
    flex: 1;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.16);
}

.btn-primary {
    background: var(--accent-color);
    color: #050d1a;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    filter: brightness(1.15);
    transform: translateY(-2px);
}

/* --- Level Select Modal --- */
.tier-tabs {
    display: flex;
    gap: 8px;
    width: 100%;
    margin-bottom: 16px;
}

.tier-tab {
    flex: 1;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

.tier-tab.active {
    background: rgba(0, 242, 255, 0.15);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.level-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    width: 100%;
    max-height: 320px;
    overflow-y: auto;
    padding: 4px;
}

.level-grid::-webkit-scrollbar {
    width: 6px;
}
.level-grid::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.level-card {
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transition: all 0.15s ease;
    padding: 4px;
}

.level-card.unlocked:hover {
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.level-card.current {
    border-color: var(--accent-color);
    box-shadow: 0 0 12px var(--accent-glow);
    background: rgba(0, 242, 255, 0.15);
}

.level-card.locked {
    opacity: 0.35;
    cursor: not-allowed;
}

.card-num {
    font-weight: 700;
    font-size: 0.95rem;
}

.card-stars {
    font-size: 0.58rem;
    color: #4b5563;
    display: flex;
    gap: 1px;
}

.card-stars .star-gold {
    color: var(--gold);
}

/* --- Settings Modal --- */
.settings-group {
    width: 100%;
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.settings-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.settings-label {
    font-size: 0.9rem;
    font-weight: 600;
}

.slider-input {
    width: 120px;
    accent-color: var(--accent-color);
}

.theme-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    width: 100%;
}

.theme-btn {
    padding: 10px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid transparent;
    color: var(--text-primary);
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.theme-btn .theme-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
}

.theme-btn.active {
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.1);
}

.danger-btn {
    width: 100%;
    padding: 10px;
    background: rgba(244, 63, 94, 0.15);
    border: 1px solid var(--danger);
    color: var(--danger);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    margin-top: 10px;
    transition: all 0.2s ease;
}

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