/**

 * Magnet Puzzle - Mobile-First Game Styles

 *

 * @file        styles.css

 * @author      Mike Fairbrother <mike@fairbrother.me>

 * @copyright   2024-2026 Mike Fairbrother. All rights reserved.

 * @license     PROPRIETARY - No rights to copy, modify, distribute, or reuse

 *              any part of this code without explicit written permission from the author.

 */



:root {

    --bg-dark: #0f0c29;

    --bg-mid: #1a1640;

    --text-primary: #fff;

    --text-secondary: rgba(255, 255, 255, 0.6);

    --accent: #ffd93d;

    --accent-glow: rgba(255, 217, 61, 0.4);

    --danger: #ff4757;

    --danger-glow: rgba(255, 71, 87, 0.5);

    --success: #2ed573;

    --success-glow: rgba(46, 213, 115, 0.4);

    --magnet-red: #ff4757;

    --magnet-red-glow: rgba(255, 71, 87, 0.5);

    --magnet-blue: #4a9eff;

    --magnet-blue-glow: rgba(74, 158, 255, 0.5);

    --fire-a: #ff6b6b;

    --fire-b: #ff9f43;

    --transition-fast: 150ms;

    --transition-normal: 300ms;

}



*, *::before, *::after {

    margin: 0;

    padding: 0;

    box-sizing: border-box;

    -webkit-tap-highlight-color: transparent;

}



html, body {

    width: 100%;

    height: 100%;

    overflow: hidden;

    background: var(--bg-dark);

    color: var(--text-primary);

    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    touch-action: manipulation;

    user-select: none;

    -webkit-user-select: none;

}



/* ---- App container ---- */

#app {

    position: relative;

    width: 100%;

    max-width: 420px;

    height: 100vh;

    height: 100dvh;

    margin: 0 auto;

    overflow: hidden;

    background: linear-gradient(170deg, #1a1640 0%, #0f0c29 40%, #1e1245 100%);

}



/* ---- Screen system ---- */

.screen {

    position: absolute;

    inset: 0;

    display: flex;

    flex-direction: column;

    opacity: 0;

    pointer-events: none;

    transition: opacity 0.3s ease;

    z-index: 1;

}

.screen.active {

    opacity: 1;

    pointer-events: auto;

    z-index: 10;

}

.screen-content {

    flex: 1;

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: safe center;

    padding: 40px 24px;

    text-align: center;

    overflow-y: auto;

}



/* ---- Menu Screen ---- */

.game-logo {

    display: flex;

    gap: 8px;

    margin-bottom: 16px;

}

.logo-emoji {

    font-size: 56px;

    animation: logo-pulse 2.5s ease-in-out infinite;

}



@keyframes logo-pulse {

    0%, 100% { transform: scale(1) rotate(0deg); }

    25% { transform: scale(1.1) rotate(-10deg); }

    75% { transform: scale(1.1) rotate(10deg); }

}



.game-title {

    font-size: 52px;

    font-weight: 800;

    letter-spacing: -1px;

    line-height: 1;

    background: linear-gradient(135deg, #fff 0%, #ff4757 40%, #4a9eff 100%);

    -webkit-background-clip: text;

    -webkit-text-fill-color: transparent;

    background-clip: text;

    margin-bottom: 8px;

}

.game-subtitle {

    font-size: 16px;

    color: var(--text-secondary);

    margin-bottom: 20px;

}

.menu-best {

    font-size: 18px;

    color: var(--accent);

    margin-bottom: 24px;

    font-weight: 600;

}



/* ---- Settings Row ---- */

.settings-row {

    display: flex;

    gap: 12px;

    margin-top: 16px;

    align-items: center;

    justify-content: center;

}

.pause-settings {

    margin-top: 20px;

}



/* ---- Footer ---- */

.game-footer {

    margin-top: 16px;

    font-size: 11px;

    color: rgba(255, 255, 255, 0.35);

    letter-spacing: 0.5px;

    font-weight: 500;

    flex-shrink: 0;

}

.game-footer a {

    color: inherit;

    text-decoration: none;

}

.game-footer a:hover {

    text-decoration: underline;

}



/* ---- Buttons ---- */

.btn {

    display: block;

    width: 220px;

    padding: 16px 32px;

    border: none;

    border-radius: 16px;

    font-size: 20px;

    font-weight: 700;

    cursor: pointer;

    transition: transform var(--transition-fast), box-shadow var(--transition-fast);

    letter-spacing: 0.5px;

}

.btn:active { transform: scale(0.95); }

.btn-primary {

    background: linear-gradient(135deg, #ffd93d, #ff9f43);

    color: #1a1640;

    box-shadow: 0 4px 20px rgba(255, 217, 61, 0.3);

}

.btn-primary:active { box-shadow: 0 2px 10px rgba(255, 217, 61, 0.2); }

.btn-secondary {

    background: rgba(255, 255, 255, 0.1);

    color: var(--text-secondary);

    margin-top: 12px;

    font-size: 16px;

    padding: 12px 32px;

}



.icon-btn {

    width: 36px;

    height: 36px;

    border: none;

    border-radius: 10px;

    background: rgba(255, 255, 255, 0.08);

    color: var(--text-secondary);

    font-size: 16px;

    cursor: pointer;

    display: flex;

    align-items: center;

    justify-content: center;

    transition: background var(--transition-fast);

    flex-shrink: 0;

}

.icon-btn:active { background: rgba(255, 255, 255, 0.15); }



.icon-btn-sm {

    width: 30px;

    height: 30px;

    font-size: 13px;

    border-radius: 8px;

}



/* ---- Game Header ---- */

#screen-game { display: flex; flex-direction: column; }



#game-header {

    display: flex;

    align-items: center;

    padding: 10px 8px 6px;

    gap: 6px;

    min-height: 52px;

}

.stat {

    display: flex;

    flex-direction: column;

    min-width: 0;

}

.stat-right { align-items: flex-end; }

.stat-label {

    font-size: 10px;

    color: var(--text-secondary);

    text-transform: uppercase;

    letter-spacing: 1px;

    font-weight: 600;

}

.stat-value {

    font-size: 22px;

    font-weight: 800;

    font-variant-numeric: tabular-nums;

    line-height: 1.1;

}



.header-center {

    flex: 1;

    display: flex;

    align-items: center;

    justify-content: center;

    min-width: 40px;

}



/* ---- Game Area ---- */

#game-area {

    flex: 1;

    position: relative;

    overflow: hidden;

    display: flex;

    align-items: stretch;

    justify-content: center;

    padding: 0 8px;

}



#game-canvas {

    width: 100%;

    height: 100%;

    display: block;

    border-radius: 12px;

}



/* ---- Game Toolbar ---- */

#game-toolbar {

    display: flex;

    align-items: center;

    justify-content: center;

    gap: 8px;

    padding: 8px 12px;

    padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));

    min-height: 64px;

}



.toolbar-btn {

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    border: none;

    border-radius: 14px;

    padding: 8px 14px;

    cursor: pointer;

    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);

    min-width: 68px;

    background: rgba(255, 255, 255, 0.08);

    color: var(--text-secondary);

}

.toolbar-btn:active { transform: scale(0.93); }



.toolbar-icon {

    font-size: 20px;

    line-height: 1;

}

.toolbar-label {

    font-size: 10px;

    font-weight: 700;

    text-transform: uppercase;

    letter-spacing: 0.5px;

    margin-top: 2px;

}



/* Magnet type buttons */

.magnet-btn-red.active {

    background: rgba(255, 71, 87, 0.25);

    color: var(--magnet-red);

    box-shadow: 0 0 16px var(--magnet-red-glow);

    border: 1px solid rgba(255, 71, 87, 0.4);

}

.magnet-btn-blue.active {

    background: rgba(74, 158, 255, 0.25);

    color: var(--magnet-blue);

    box-shadow: 0 0 16px var(--magnet-blue-glow);

    border: 1px solid rgba(74, 158, 255, 0.4);

}



.toolbar-btn-go {

    background: rgba(46, 213, 115, 0.2);

    color: var(--success);

    min-width: 76px;

    border: 1px solid rgba(46, 213, 115, 0.3);

}

.toolbar-btn-go:active {

    box-shadow: 0 0 16px var(--success-glow);

}

.toolbar-btn-go.simulating {

    background: rgba(255, 159, 67, 0.25);

    color: var(--fire-b);

    border-color: rgba(255, 159, 67, 0.4);

    animation: go-pulse 1s ease-in-out infinite;

}

@keyframes go-pulse {

    0%, 100% { box-shadow: 0 0 8px rgba(255, 159, 67, 0.3); }

    50% { box-shadow: 0 0 20px rgba(255, 159, 67, 0.6); }

}



.toolbar-btn-clear {

    background: rgba(255, 255, 255, 0.06);

}



/* ---- Level Complete Screen ---- */

.level-complete-title {

    font-size: 32px;

    font-weight: 800;

    color: var(--success);

    margin-bottom: 20px;

    animation: badge-pop 0.5s ease-out;

}



.score-breakdown {

    width: 100%;

    max-width: 260px;

    margin-bottom: 20px;

}

.breakdown-row {

    display: flex;

    justify-content: space-between;

    padding: 8px 0;

    border-bottom: 1px solid rgba(255, 255, 255, 0.06);

}

.breakdown-label {

    font-size: 14px;

    color: var(--text-secondary);

}

.breakdown-value {

    font-size: 14px;

    font-weight: 700;

    color: var(--accent);

    font-variant-numeric: tabular-nums;

}

.breakdown-total {

    border-bottom: none;

    padding-top: 12px;

    margin-top: 4px;

    border-top: 2px solid rgba(255, 217, 61, 0.2);

}

.breakdown-total .breakdown-label {

    font-weight: 700;

    color: var(--text-primary);

}

.breakdown-total .breakdown-value {

    font-size: 18px;

}



/* ---- Game Over Screen ---- */

.gameover-title {

    font-size: 36px;

    font-weight: 800;

    margin-bottom: 8px;

}

.gameover-hint {

    font-size: 14px;

    color: var(--text-secondary);

    margin-bottom: 20px;

    max-width: 280px;

    line-height: 1.4;

}

#new-best-badge {

    font-size: 18px;

    font-weight: 700;

    color: var(--accent);

    background: rgba(255, 217, 61, 0.15);

    padding: 6px 20px;

    border-radius: 20px;

    margin-bottom: 16px;

    animation: badge-pop 0.5s ease-out;

}

@keyframes badge-pop {

    0%  { transform: scale(0); opacity: 0; }

    60% { transform: scale(1.2); }

    100% { transform: scale(1); opacity: 1; }

}

.hidden { display: none !important; }



.final-score-block, .final-best-block { margin-bottom: 6px; }

.final-label {

    display: block;

    font-size: 12px;

    color: var(--text-secondary);

    text-transform: uppercase;

    letter-spacing: 1px;

    font-weight: 600;

}

.final-value {

    font-size: 52px;

    font-weight: 800;

    line-height: 1.1;

    font-variant-numeric: tabular-nums;

}

.final-value-small {

    font-size: 26px;

    color: var(--text-secondary);

}

.final-stats {

    display: flex;

    gap: 24px;

    margin: 20px 0 16px;

}

.final-stat {

    display: flex;

    flex-direction: column;

    align-items: center;

}

.final-stat-num {

    font-size: 22px;

    font-weight: 800;

    font-variant-numeric: tabular-nums;

}

.final-stat-label {

    font-size: 10px;

    color: var(--text-secondary);

    text-transform: uppercase;

    letter-spacing: 0.5px;

    margin-top: 2px;

}



/* ---- Back to Games ---- */

.back-to-games-inline {

    display: inline-block;

    color: rgba(255, 255, 255, 0.35);

    text-decoration: none;

    font-size: 13px;

    font-weight: 600;

    padding: 6px 14px;

    border-radius: 10px;

    margin-bottom: 12px;

    transition: color 150ms, background 150ms;

}

.back-to-games-inline:active {

    background: rgba(255, 255, 255, 0.08);

    color: #fff;

}

.gameover-back {

    margin-top: 12px;

    margin-bottom: 0;

}



/* ---- Pause Overlay ---- */

.game-overlay {

    position: absolute;

    inset: 0;

    z-index: 50;

    background: rgba(0, 0, 0, 0.75);

    backdrop-filter: blur(6px);

    -webkit-backdrop-filter: blur(6px);

    display: flex;

    align-items: center;

    justify-content: center;

    opacity: 0;

    pointer-events: none;

    transition: opacity 0.2s ease;

}

.game-overlay.active {

    opacity: 1;

    pointer-events: auto;

}

.overlay-content {

    display: flex;

    flex-direction: column;

    align-items: center;

    gap: 4px;

}

.overlay-title {

    font-size: 28px;

    font-weight: 800;

    margin-bottom: 20px;

}



/* ---- Help Modal ---- */

.help-content {

    max-width: 320px;

    padding: 0 20px;

}

.help-steps {

    width: 100%;

    margin-bottom: 24px;

}

.help-step {

    display: flex;

    align-items: flex-start;

    gap: 14px;

    text-align: left;

    padding: 10px 0;

}

.help-num {

    flex-shrink: 0;

    width: 28px;

    height: 28px;

    border-radius: 50%;

    background: rgba(255, 217, 61, 0.15);

    color: var(--accent);

    font-size: 14px;

    font-weight: 800;

    display: flex;

    align-items: center;

    justify-content: center;

}

.help-step p {

    font-size: 14px;

    color: var(--text-secondary);

    line-height: 1.5;

    margin-top: 3px;

}



/* ---- Score popup ---- */

.score-popup {

    position: fixed;

    font-size: 18px;

    font-weight: 800;

    color: var(--accent);

    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);

    pointer-events: none;

    z-index: 20;

    animation: score-float 0.9s ease-out forwards;

    white-space: nowrap;

    transform: translateX(-50%);

}

@keyframes score-float {

    0%   { transform: translateX(-50%) translateY(0) scale(0.5); opacity: 0; }

    20%  { transform: translateX(-50%) translateY(-10px) scale(1.1); opacity: 1; }

    100% { transform: translateX(-50%) translateY(-60px) scale(0.9); opacity: 0; }

}



/* ---- Responsive ---- */

@media (min-width: 421px) {

    body {

        display: flex;

        align-items: center;

        justify-content: center;

        background: #080620;

    }

    #app {

        border-radius: 24px;

        box-shadow: 0 0 60px rgba(30, 20, 80, 0.5);

        border: 1px solid rgba(255, 255, 255, 0.05);

        max-height: 900px;

    }

}



@supports (padding-top: env(safe-area-inset-top)) {

    #game-header {

        padding-top: calc(10px + env(safe-area-inset-top));

    }

}