/**


 * Word Collapse - 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;


    --fire-a: #ff6b6b;


    --fire-b: #ff9f43;


    --vowel-bg: #3d2066;


    --vowel-border: #a855f7;


    --consonant-bg: #1a3a5c;


    --consonant-border: #3b82f6;


    --gold-bg: #5c4a00;


    --gold-border: #ffd93d;


    --rainbow-border: linear-gradient(135deg, #ff6b6b, #ffd93d, #2ed573, #3b82f6, #a855f7);


    --tile-size: 52px;


    --tile-gap: 4px;


    --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: none;


    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: 48px;


    animation: logo-bounce 2s ease-in-out infinite;


}


.logo-emoji:nth-child(2) { animation-delay: 0.15s; }


.logo-emoji:nth-child(3) { animation-delay: 0.3s; }





@keyframes logo-bounce {


    0%, 100% { transform: translateY(0); }


    50% { transform: translateY(-12px); }


}





.game-title {


    font-size: 52px;


    font-weight: 800;


    letter-spacing: -1px;


    line-height: 1;


    background: linear-gradient(135deg, #fff 0%, #ffd93d 50%, #ff6b6b 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: 8px;


}


.game-hint {


    font-size: 13px;


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


    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; touch-action: none; }





#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;


}





/* ---- Word Preview ---- */


#word-preview {


    display: flex;


    align-items: center;


    justify-content: center;


    gap: 8px;


    min-height: 38px;


    padding: 4px 12px;


    margin: 0 8px;


    border-radius: 12px;


    background: rgba(255, 255, 255, 0.04);


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


}


#word-preview.valid {


    background: rgba(46, 213, 115, 0.12);


}


#word-preview.invalid {


    background: rgba(255, 71, 87, 0.08);


}


#word-preview-text {


    font-size: 22px;


    font-weight: 800;


    letter-spacing: 3px;


    text-transform: uppercase;


    min-height: 28px;


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


}


#word-preview.valid #word-preview-text {


    color: var(--success);


}


#word-preview.invalid #word-preview-text {


    color: rgba(255, 255, 255, 0.3);


}


#word-preview-status {


    font-size: 12px;


    font-weight: 700;


    opacity: 0.7;


}


#word-preview.valid #word-preview-status {


    color: var(--success);


}





/* ---- Streak Bar ---- */


#streak-bar {


    display: flex;


    align-items: center;


    justify-content: center;


    padding: 4px 12px;


    margin: 2px 8px 0;


    border-radius: 8px;


    background: linear-gradient(90deg, rgba(255, 107, 107, 0.2), rgba(255, 159, 67, 0.2));


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


}


#streak-bar.hidden {


    display: none;


}


#streak-text {


    font-size: 13px;


    font-weight: 700;


    color: var(--fire-b);


}





/* ---- Grid Area ---- */


#grid-area {


    flex: 1;


    position: relative;


    display: flex;


    align-items: flex-end;


    justify-content: center;


    padding: 8px;


    overflow: hidden;


    touch-action: none;


}





#grid-container {


    display: grid;


    grid-template-columns: repeat(6, var(--tile-size));


    gap: var(--tile-gap);


    justify-content: center;


    position: relative;


    z-index: 2;


    touch-action: none;


}





#selection-line {


    position: absolute;


    inset: 0;


    z-index: 3;


    pointer-events: none;


    overflow: visible;


}


#selection-line line {


    stroke: var(--accent);


    stroke-width: 3;


    stroke-linecap: round;


    opacity: 0.7;


    filter: drop-shadow(0 0 4px var(--accent-glow));


}





/* ---- Letter Tiles ---- */


.tile {


    width: var(--tile-size);


    height: var(--tile-size);


    border-radius: 12px;


    display: flex;


    align-items: center;


    justify-content: center;


    font-size: 22px;


    font-weight: 800;


    cursor: pointer;


    position: relative;


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


    border: 2px solid transparent;


    text-transform: uppercase;


    touch-action: none;


}





.tile-vowel {


    background: var(--vowel-bg);


    border-color: var(--vowel-border);


    color: #e0b0ff;


}


.tile-consonant {


    background: var(--consonant-bg);


    border-color: var(--consonant-border);


    color: #a5c8ff;


}


.tile-gold {


    background: var(--gold-bg);


    border-color: var(--gold-border);


    color: var(--accent);


    box-shadow: 0 0 8px rgba(255, 217, 61, 0.3);


}


.tile-gold::after {


    content: '\2B50';


    position: absolute;


    top: -4px;


    right: -4px;


    font-size: 12px;


    line-height: 1;


}


.tile-rainbow {


    background: linear-gradient(135deg, #2d1b4e, #1b3a5c, #1b4a3a);


    color: #fff;


    animation: rainbow-border 2s linear infinite;


    border-image: linear-gradient(135deg, #ff6b6b, #ffd93d, #2ed573, #3b82f6, #a855f7) 1;


    border-style: solid;


    border-width: 2px;


    border-radius: 12px;


}


/* Rainbow tiles need a special approach for rounded border-image */


.tile-rainbow {


    border: none;


    outline: 2px solid transparent;


    background-clip: padding-box;


    position: relative;


    overflow: visible;


}


.tile-rainbow::before {


    content: '';


    position: absolute;


    inset: -2px;


    border-radius: 13px;


    background: linear-gradient(135deg, #ff6b6b, #ffd93d, #2ed573, #3b82f6, #a855f7);


    z-index: -1;


    animation: rainbow-spin 2s linear infinite;


}


.tile-rainbow::after {


    content: '?';


    position: absolute;


    top: -4px;


    right: -2px;


    font-size: 11px;


    line-height: 1;


    color: rgba(255,255,255,0.6);


}





@keyframes rainbow-spin {


    0% { filter: hue-rotate(0deg); }


    100% { filter: hue-rotate(360deg); }


}





.tile.selected {


    transform: scale(1.1);


    box-shadow: 0 0 16px var(--accent-glow), 0 0 32px rgba(255, 217, 61, 0.15);


    border-color: var(--accent) !important;


    z-index: 5;


}


.tile.selected::before {


    display: none;


}





.tile.pop {


    animation: tile-pop 0.35s ease-out forwards;


}


@keyframes tile-pop {


    0%   { transform: scale(1); opacity: 1; }


    40%  { transform: scale(1.3); opacity: 0.8; }


    100% { transform: scale(0); opacity: 0; }


}





.tile.slide-up {


    animation: tile-slide-up 0.3s ease-out;


}


@keyframes tile-slide-up {


    0%   { transform: translateY(calc(var(--tile-size) + var(--tile-gap))); opacity: 0.5; }


    100% { transform: translateY(0); opacity: 1; }


}





.tile.fall-in {


    animation: tile-fall 0.25s ease-out;


}


@keyframes tile-fall {


    0%   { transform: translateY(calc(-1 * (var(--tile-size) + var(--tile-gap)))); }


    70%  { transform: translateY(2px); }


    100% { transform: translateY(0); }


}





/* Empty tile placeholder */


.tile-empty {


    width: var(--tile-size);


    height: var(--tile-size);


    border-radius: 12px;


    background: rgba(255, 255, 255, 0.02);


    border: 1px solid rgba(255, 255, 255, 0.04);


}





/* ---- Row Timer Bar ---- */


#row-timer {


    height: 4px;


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


    border-radius: 2px;


    margin: 0 16px 4px;


    overflow: hidden;


    flex-shrink: 0;


}


#row-timer-fill {


    height: 100%;


    width: 100%;


    background: linear-gradient(90deg, var(--success), var(--accent), var(--danger));


    border-radius: 2px;


    transition: width 25s linear;


}





/* ---- Hint Glow ---- */


.tile-hint {


    animation: hint-pulse 1.2s ease-in-out infinite;


    box-shadow: 0 0 12px rgba(255, 217, 61, 0.5), inset 0 0 8px rgba(255, 217, 61, 0.15) !important;


    border-color: var(--accent) !important;


}


@keyframes hint-pulse {


    0%, 100% { box-shadow: 0 0 8px rgba(255, 217, 61, 0.3), inset 0 0 6px rgba(255, 217, 61, 0.1); }


    50% { box-shadow: 0 0 18px rgba(255, 217, 61, 0.6), inset 0 0 10px rgba(255, 217, 61, 0.2); }


}





/* ---- Particles ---- */


#particles {


    position: fixed;


    inset: 0;


    pointer-events: none;


    z-index: 200;


    overflow: hidden;


}


.particle {


    position: fixed;


    pointer-events: none;


    animation: particle-fly 0.65s ease-out forwards;


    z-index: 200;


}


@keyframes particle-fly {


    0%   { transform: translate(0, 0) scale(1); opacity: 1; }


    100% { transform: translate(var(--tx), var(--ty)) scale(0); opacity: 0; }


}





/* 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%);


}


.score-popup.big-combo {


    font-size: 26px;


    color: var(--fire-a);


    text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);


}


@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; }


}





/* Combo / word popup */


.combo-popup {


    position: fixed;


    font-size: 28px;


    font-weight: 900;


    color: var(--accent);


    text-shadow: 0 0 20px var(--accent-glow), 0 2px 8px rgba(0, 0, 0, 0.5);


    pointer-events: none;


    z-index: 30;


    white-space: nowrap;


    animation: combo-burst 0.8s ease-out forwards;


}


@keyframes combo-burst {


    0%   { transform: translate(-50%, -50%) scale(0); opacity: 0; }


    20%  { transform: translate(-50%, -50%) scale(1.3); opacity: 1; }


    60%  { transform: translate(-50%, -50%) scale(1); opacity: 1; }


    100% { transform: translate(-50%, -50%) scale(0.8); opacity: 0; }


}





/* Screen shake */


.shake { animation: shake 0.3s ease-out; }


@keyframes shake {


    0%, 100% { transform: translateX(0); }


    20% { transform: translateX(-4px) rotate(-0.5deg); }


    40% { transform: translateX(4px) rotate(0.5deg); }


    60% { transform: translateX(-3px); }


    80% { transform: translateX(2px); }


}





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


.gameover-title {


    font-size: 36px;


    font-weight: 800;


    margin-bottom: 8px;


}


#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;


}


.motivation-text {


    font-size: 15px;


    font-weight: 600;


    color: var(--fire-a);


    margin-bottom: 20px;


    animation: badge-pop 0.5s ease-out 0.3s both;


}





/* ---- 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;


}





/* ---- Overlays ---- */


.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: 340px;


    max-height: 80vh;


    overflow-y: auto;


    padding: 24px;


}


.help-body {


    display: flex;


    flex-direction: column;


    gap: 14px;


    margin-bottom: 24px;


    text-align: left;


}


.help-item {


    display: flex;


    gap: 12px;


    align-items: flex-start;


}


.help-icon {


    font-size: 22px;


    flex-shrink: 0;


    width: 28px;


    text-align: center;


}


.help-item p {


    font-size: 14px;


    color: var(--text-secondary);


    line-height: 1.4;


}





/* ---- Danger state ---- */


#grid-container.danger {


    animation: grid-danger-pulse 0.8s ease-in-out infinite;


}


@keyframes grid-danger-pulse {


    0%, 100% { box-shadow: 0 0 0 0 transparent; }


    50% { box-shadow: 0 0 20px rgba(255, 71, 87, 0.3); }


}





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


@media (max-width: 370px) {


    :root {


        --tile-size: 44px;


        --tile-gap: 3px;


    }


    .tile { font-size: 18px; border-radius: 10px; }


}





@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));


    }


}