/* ============================================================
   NEOTRETIS — MAIN.CSS
   Global styles, layout, typography, header, utilities
   ============================================================ */

/* ─── RESET & BASE ──────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--clr-bg);
    color: var(--clr-text);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

button {
    font-family: var(--font-display);
    cursor: pointer;
    border: none;
    background: none;
}

kbd {
    font-family: var(--font-mono);
}

/* ─── BACKGROUND LAYERS ─────────────────────────────────────── */
.bg-layer {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.bg-grid {
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.8;
}

.bg-glow-1 {
    background: radial-gradient(ellipse 60% 50% at 15% 20%, var(--clr-primary-dim), transparent 70%);
}

.bg-glow-2 {
    background: radial-gradient(ellipse 50% 60% at 85% 80%, var(--clr-secondary-dim), transparent 70%);
}

.scanlines {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    background: repeating-linear-gradient(180deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.03) 2px,
            rgba(0, 0, 0, 0.03) 4px);
}

/* ─── HEADER ────────────────────────────────────────────────── */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 50px;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--clr-border);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 160px;
}

.header-badge {
    font-family: var(--font-display);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--clr-bg);
    background: var(--clr-primary);
    padding: 3px 8px;
    border-radius: 3px;
}

.header-version {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--clr-text-muted);
}

.header-center {
    flex: 1;
    overflow: hidden;
    padding: 0 20px;
}

.header-ticker {
    overflow: hidden;
    white-space: nowrap;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--clr-text-muted);
}

.header-ticker-inner {
    display: inline-flex;
    gap: 60px;
    white-space: nowrap;
}

.header-ticker span {
    padding-right: 60px;
}

.header-right {
    min-width: 160px;
    display: flex;
    justify-content: flex-end;
}

.player-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.player-badge:hover {
    border-color: var(--clr-border-strong);
    background: var(--clr-surface-2);
}

.player-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 900;
    color: var(--clr-bg);
    flex-shrink: 0;
}

.player-info {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.player-name {
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 700;
    color: var(--clr-text);
    letter-spacing: 0.05em;
}

.player-rank {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--clr-primary);
}

/* ─── MAIN LAYOUT ───────────────────────────────────────────── */
.game-layout {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 220px 1fr 240px;
    grid-template-areas: "left center right";
    gap: 16px;
    padding: 16px;
    max-width: 1280px;
    margin: 0 auto;
    min-height: calc(100vh - 50px);
    align-items: start;
}

/* ─── SIDEBARS ──────────────────────────────────────────────── */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-left {
    grid-area: left;
}

.sidebar-right {
    grid-area: right;
}

.game-center {
    grid-area: center;
}

/* ─── CARD BASE ─────────────────────────────────────────────── */
.card {
    background: var(--clr-surface);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 14px;
    box-shadow: var(--glow-card);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, transparent 60%);
    pointer-events: none;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.card-icon {
    font-size: 14px;
    line-height: 1;
}

.card-title {
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    flex: 1;
}

.card-badge {
    font-family: var(--font-mono);
    font-size: 9px;
    padding: 2px 7px;
    background: var(--clr-primary-dim);
    border: 1px solid var(--clr-border);
    border-radius: 3px;
    color: var(--clr-primary);
}

.card-hint {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--clr-text-dim);
    text-align: center;
    margin-top: 8px;
}

/* ─── LOGO CARD ─────────────────────────────────────────────── */
.logo-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 18px 14px;
    text-align: center;
    border-color: var(--clr-border-strong);
}

.logo-icon {
    width: 52px;
    height: 52px;
    perspective: 120px;
    margin: 0 auto;
}

.logo-cube {
    width: 32px;
    height: 32px;
    position: relative;
    transform-style: preserve-3d;
    transform: rotateX(-20deg) rotateY(0deg);
    margin: 10px auto;
}

.cube-face {
    position: absolute;
    width: 32px;
    height: 32px;
}

.cube-top {
    background: var(--clr-primary);
    opacity: 0.9;
    transform: rotateX(90deg) translateZ(16px);
}

.cube-front {
    background: color-mix(in srgb, var(--clr-primary) 60%, black);
    transform: translateZ(16px);
}

.cube-right {
    background: color-mix(in srgb, var(--clr-primary) 40%, black);
    transform: rotateY(90deg) translateZ(16px);
}

.logo-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 900;
    letter-spacing: 0.05em;
    color: var(--clr-text);
    line-height: 1;
    text-shadow: 0 0 30px var(--clr-primary-dim);
}

.logo-accent {
    color: var(--clr-primary);
    text-shadow: var(--glow-primary);
}

.logo-tagline {
    font-family: var(--font-mono);
    font-size: 8px;
    letter-spacing: 0.22em;
    color: var(--clr-text-dim);
}

.logo-glow-ring {
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: transparent;
    border: 1px solid transparent;
    background: linear-gradient(var(--clr-bg), var(--clr-bg)) padding-box,
        linear-gradient(135deg, var(--clr-primary), var(--clr-secondary)) border-box;
    pointer-events: none;
    opacity: 0.5;
}

/* ─── HOLD CARD ─────────────────────────────────────────────── */
.hold-display {
    display: flex;
    justify-content: center;
}

/* ─── CONTROLS CARD ─────────────────────────────────────────── */
.controls-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.control-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 7px;
    border-radius: var(--radius-sm);
    background: var(--clr-primary-dim);
    border: 1px solid transparent;
    transition: border-color 0.2s;
}

.control-item:hover {
    border-color: var(--clr-border);
}

.key {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--clr-primary);
    background: var(--clr-surface-2);
    border: 1px solid var(--clr-border);
    border-radius: 4px;
    padding: 2px 5px;
    white-space: nowrap;
    transition: all 0.2s;
}

.control-label {
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 500;
    color: var(--clr-text-muted);
    white-space: nowrap;
}

/* ─── THEME CARD ─────────────────────────────────────────────── */
.theme-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.theme-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    background: var(--clr-primary-dim);
    border: 1px solid var(--clr-border);
    cursor: pointer;
    user-select: none;
}

.theme-option.active {
    background: var(--clr-surface-2);
    border-color: var(--clr-border-strong);
}

.theme-option.active .theme-check {
    color: var(--clr-primary);
    opacity: 1;
}

.theme-check {
    margin-left: auto;
    font-size: 11px;
    opacity: 0;
    color: var(--clr-primary);
}

.theme-swatch {
    display: flex;
    gap: 3px;
    flex-shrink: 0;
}

.swatch-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.theme-name {
    font-family: var(--font-display);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--clr-text-muted);
    flex: 1;
}

/* ─── CARDS ROW ─────────────────────────────────────────────── */
.cards-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

/* ─── SCORE CARD ─────────────────────────────────────────────── */
.score-display {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.score-value {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 900;
    color: var(--clr-primary);
    text-shadow: var(--glow-primary);
    letter-spacing: 0.04em;
    text-align: center;
    line-height: 1;
}

.score-bar-wrap {
    height: 3px;
    background: var(--clr-primary-dim);
    border-radius: 2px;
    overflow: hidden;
}

.score-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
    border-radius: 2px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.score-high {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.score-high-label {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--clr-text-dim);
    letter-spacing: 0.1em;
}

.score-high-val {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--clr-text-muted);
}

/* ─── LEVEL / LINES CARDS ───────────────────────────────────── */
.metric-value {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 900;
    color: var(--clr-primary);
    text-shadow: var(--glow-primary);
    text-align: center;
    line-height: 1;
    margin-bottom: 8px;
}

.level-pips {
    display: flex;
    gap: 4px;
    justify-content: center;
}

.pip {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--clr-border);
}

.pip.active {
    background: var(--clr-primary);
    box-shadow: 0 0 6px var(--clr-primary);
}

.lines-target {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 9px;
}

.lines-label {
    color: var(--clr-text-dim);
}

.lines-needed {
    color: var(--clr-primary);
}

/* ─── COMBO CARD ─────────────────────────────────────────────── */
.combo-flame {
    margin-left: auto;
    font-size: 16px;
    filter: grayscale(1) opacity(0.3);
    transition: filter 0.3s;
}

.combo-flame.active {
    filter: grayscale(0) opacity(1) drop-shadow(0 0 6px orange);
}

.combo-display {
    text-align: center;
    margin-bottom: 10px;
}

.combo-value {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 900;
    color: var(--clr-secondary);
    text-shadow: var(--glow-secondary);
}

.combo-label {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--clr-text-dim);
    letter-spacing: 0.1em;
}

.combo-history {
    display: flex;
    gap: 4px;
    justify-content: center;
}

.combo-hist-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--clr-border);
    transition: background 0.2s, box-shadow 0.2s;
}

.combo-hist-dot.active {
    background: var(--clr-secondary);
    box-shadow: 0 0 6px var(--clr-secondary);
}

/* ─── NEXT PIECE CARD ───────────────────────────────────────── */
.next-pieces-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.next-piece-slot {
    display: flex;
    align-items: center;
    gap: 10px;
}

.next-label {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--clr-primary);
    letter-spacing: 0.12em;
    width: 30px;
    flex-shrink: 0;
}

/* ─── DAILY CHALLENGE CARD ──────────────────────────────────── */
.daily-timer {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--clr-warning);
}

.daily-challenge {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 10px;
}

.challenge-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.challenge-icon {
    font-size: 14px;
    flex-shrink: 0;
}

.challenge-info {
    flex: 1;
    min-width: 0;
}

.challenge-name {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 600;
    color: var(--clr-text-muted);
    display: block;
    margin-bottom: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.challenge-progress-bar {
    height: 3px;
    background: var(--clr-primary-dim);
    border-radius: 2px;
    overflow: hidden;
}

.challenge-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
    border-radius: 2px;
}

.challenge-status {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--clr-text-dim);
    width: 26px;
    text-align: right;
    flex-shrink: 0;
}

.daily-reward {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 10px;
    background: var(--clr-primary-dim);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
}

.reward-icon {
    font-size: 14px;
}

.reward-text {
    font-family: var(--font-body);
    font-size: 11px;
    color: var(--clr-text-muted);
}

.reward-text strong {
    color: var(--clr-accent-warm);
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.08em;
}

/* ─── ACHIEVEMENTS CARD ─────────────────────────────────────── */
.achv-count {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--clr-text-dim);
}

.achievements-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 8px;
    border-radius: var(--radius-sm);
    background: var(--clr-primary-dim);
    border: 1px solid var(--clr-border);
}

.achievement-item.unlocked {
    background: rgba(var(--clr-success), 0.08);
    border-color: rgba(0, 255, 136, 0.2);
}

[data-theme="neon-cyberpunk"] .achievement-item.unlocked {
    background: rgba(0, 255, 136, 0.06);
}

.achv-icon {
    font-size: 14px;
    flex-shrink: 0;
}

.achv-info {
    flex: 1;
    min-width: 0;
}

.achv-name {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 600;
    color: var(--clr-text-muted);
    display: block;
    line-height: 1.2;
}

.achv-desc {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--clr-text-dim);
    display: block;
}

.achv-badge {
    font-size: 12px;
    color: var(--clr-success);
    text-shadow: 0 0 8px var(--clr-success);
}

.achv-progress-bar {
    height: 2px;
    background: var(--clr-primary-dim);
    border-radius: 2px;
    margin-top: 4px;
    overflow: hidden;
}

.achv-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
}

/* ─── TOAST NOTIFICATIONS ───────────────────────────────────── */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--clr-surface-2);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--clr-border-strong);
    border-radius: var(--radius-md);
    box-shadow: var(--glow-card);
    pointer-events: auto;
    animation: toast-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.toast.out {
    animation: toast-out 0.3s ease forwards;
}

.toast-icon {
    font-size: 16px;
}

.toast-text {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    color: var(--clr-text);
}

/* ─── PIECE PREVIEW ─────────────────────────────────────────── */
.piece-preview-area {
    width: 80px;
    height: 60px;
    background: var(--clr-surface-2);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.piece-preview-area.sm {
    width: 56px;
    height: 44px;
}

.empty-piece-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.piece-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
}

.piece-ghost-text {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--clr-text-dim);
}

/* ─── SCROLLBAR ─────────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--clr-border);
    border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--clr-border-strong);
}

/* ─── RESPONSIVE: TABLET ────────────────────────────────────── */
@media (max-width: 1024px) {
    .game-layout {
        grid-template-columns: 200px 1fr;
        grid-template-rows: auto auto;
        grid-template-areas:
            "left center"
            "right right";
    }

    .sidebar-right {
        grid-area: right;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 12px;
    }

    .cards-row {
        grid-column: auto;
    }
}

/* ─── RESPONSIVE: MOBILE ────────────────────────────────────── */
@media (max-width: 700px) {
    .app-header {
        padding: 0 12px;
    }

    .header-center {
        display: none;
    }

    .header-left {
        min-width: auto;
    }

    .header-right {
        min-width: auto;
    }

    .player-info {
        display: none;
    }

    .game-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        grid-template-areas:
            "center"
            "left"
            "right";
        padding: 10px;
        gap: 12px;
    }

    .sidebar-left,
    .sidebar-right {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .logo-card {
        grid-column: 1 / -1;
    }

    .score-card {
        grid-column: 1 / -1;
    }

    .sidebar-right .cards-row {
        grid-column: 1 / -1;
    }

    .daily-card,
    .achievement-card {
        grid-column: 1 / -1;
    }

    .logo-title {
        font-size: 18px;
    }

    .score-value {
        font-size: 22px;
    }

    .metric-value {
        font-size: 22px;
    }
}

@media (max-width: 400px) {

    .sidebar-left,
    .sidebar-right {
        grid-template-columns: 1fr;
    }
}