@import url('https://fonts.googleapis.com/css2?family=Inter:wght@600;800&display=swap');

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    min-height: 100vh;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #e8eafc 0%, #b6eaff 50%, #ffe0fb 100%);
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: stretch;
    color: #232336;
    letter-spacing: 0.01em;
    user-select: none;
    overflow-x: hidden;
}

/* Main vertical flex container */
.main-flex {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 0; /* allow children to shrink on small screens */
}

.game-wrapper {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
    background: rgba(255,255,255,0.26);
    border-radius: 32px;
    box-shadow: 0 16px 48px 0 rgba(130,98,255,0.13), 0 1.5px 0 #fcf9fd inset;
    padding: 32px 14px 12px 14px;
    backdrop-filter: blur(13px);
    position: relative;
    border-top: 6px solid #7f53ac;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.screen {
    width: 100%;
    display: none;
    animation: fadeIn 0.5s;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.97);}
    to { opacity: 1; transform: scale(1);}
}

/* Center all headings/text and prevent overflow */
h1,h2, .game-title, .game-over-title {
    text-align: center;
    word-break: break-word;
}

.game-title {
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    font-weight: 800;
    letter-spacing: 2px;
    font-size: 2.1rem;
    background: linear-gradient(90deg, #4fd1c5, #7f53ac, #b5fffc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 24px;
    animation: floatTitle 2.2s ease-in-out infinite alternate;
}

@keyframes floatTitle {
    0% { transform: translateY(0);}
    100% { transform: translateY(-5px);}
}

.high-score-display {
    font-size: 1.20rem;
    font-weight: 700;
    color: #7f53ac;
    letter-spacing: 0.1em;
    margin-bottom: 34px;
}

.instructions {
    background: rgba(250, 250, 255, 0.57);
    color: #412b98;
    padding: 14px;
    border-radius: 16px;
    margin-bottom: 22px;
    font-size: 0.99rem;
    line-height: 1.7;
    box-shadow: 0 1px 10px 0 rgba(127, 83, 172, 0.15);
}

.start-btn, .restart-btn {
    padding: 14px 38px;
    border-radius: 13px;
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    font-weight: 700;
    border: none;
    background: linear-gradient(95deg, #7f53ac 24%, #4fd1c5 80%);
    color: #fff;
    font-size: 1.14rem;
    cursor: pointer;
    box-shadow: 0 3px 15px 0 rgba(127, 83, 172, 0.11);
    transition: transform 0.13s, box-shadow 0.13s;
    margin: 0 0 24px 0;
    width: 80%;
    max-width: 260px;
}

.start-btn:hover, .restart-btn:hover {
    transform: scale(1.045) translateY(-1.5px);
    box-shadow: 0 7px 22px 0 rgba(79, 209, 197, 0.24);
}

.credit {
    font-size: 0.96rem;
    color: #7368ad;
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    margin-top: 13px;
    opacity: 0.66;
    text-align: center;
}

/* Score Box */
.score-panel {
    width: 96%;
    margin: 0 auto 16px auto;
    display: flex;
    justify-content: space-between;
    background: rgba(240, 250, 255, 0.82);
    border-radius: 15px;
    box-shadow: 0 1px 9px 0 rgba(127, 83, 172, 0.12);
    border: none;
    color: #771780;
    padding: 13px 15px;
    font-family: 'Inter', Arial, sans-serif;
}

.score-item {
    flex-basis: 33%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.label {
    font-size: 0.98rem;
    color: #888;
    font-family: 'Inter', Arial, sans-serif;
}

.score-item span:last-child {
    color: #4f31f0;
    font-weight: 800;
    font-size: 1.22rem;
    margin-top: 2px;
}

/* Canvas - Game Board */
#gameCanvas {
    background: linear-gradient(160deg, #fbfcfa 40%, #e8eafc 100%);
    border: none;
    border-radius: 22px;
    box-shadow: 0 2px 22px 2px rgba(100,182,233,0.14);
    margin: 0 auto 10px auto;
    display: block;
    width: 98vw;
    max-width: 362px;
    max-height: 362px;
    aspect-ratio: 1/1;
}

/* Mobile Controls */
.mobile-controls {
    margin: 20px auto 18px auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 95vw;
    max-width: 340px;
}

.control-row {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin: 6px 0;
}

.control-btn {
    width: 63px;
    height: 63px;
    margin: 4px;
    border-radius: 18px;
    font-size: 2.07rem;
    background: linear-gradient(120deg, #a685fa 10%, #00e1ff 90%);
    color: #fff;
    border: none;
    box-shadow: 0 2px 9px 0 rgba(25, 88, 124, 0.11);
    outline: none;
    cursor: pointer;
    font-family: 'Inter', 'Segoe UI', Arial;
    transition: transform 0.11s cubic-bezier(.25,.8,.25,1);
}
.control-btn:active {
    transform: scale(0.97);
    box-shadow: 0 1.5px 7px #647af9;
}

/* Game Over Styles */
.game-over-title {
    font-size: 2rem;
    color: #ed4e7e;
    margin-bottom: 22px;
    font-family: 'Inter', Arial, sans-serif;
    letter-spacing: 1.4px;
    background: linear-gradient(90deg, #a037f2 15%, #f928a5 85%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fall-in 0.6s ease-in;
}
@keyframes fall-in { 0% { opacity: 0; transform: translateY(-18px);} 100% { opacity: 1; transform: translateY(0);} }

.final-stats {
    background: rgba(248, 248, 250, 0.96);
    padding: 20px 9px;
    border-radius: 13px;
    margin-bottom: 23px;
    box-shadow: 0 2.5px 10px rgba(183, 105, 253, 0.07);
    width: 95%;
}

.stat {
    display: flex;
    justify-content: space-between;
    margin: 12px 0;
    font-size: 0.97rem;
}

.stat-label {
    color: #8377ae;
    font-weight: 600;
}

.stat-value {
    color: #4fd1c5;
    font-weight: bold;
    font-size: 1.13rem;
}

.new-high-score {
    display: none;
    font-size: 1rem;
    color: #ffbb41;
    margin-top: 17px;
    animation: pulse 1.08s infinite alternate;
    font-family: 'Inter', Arial, sans-serif;
    letter-spacing: 0.7px;
}
.new-high-score.show { display: block; }

@keyframes pulse { 0%   { transform: scale(1); } 100% { transform: scale(1.11); } }

@media (max-width: 600px) {
    .game-title   { font-size: 1.44rem; }
    .game-over-title { font-size: 1.02rem; }
    .score-panel { padding: 10px 4px; }
    .score-item span:last-child { font-size: 1.02rem;}
    .instructions { font-size: 0.93rem; padding: 8px;}
    .start-btn,.restart-btn { padding: 10px 14px; font-size: 0.98rem;}
    .stat { font-size: 0.88rem;}
    .game-wrapper { padding: 24px 3vw 6px 3vw;}
    #gameCanvas   { max-width: 99vw; max-height: 57vw; }
    .mobile-controls{max-width:99vw;}
    .footer { font-size: 1.02rem; border-radius: 18px 18px 0 0; padding-bottom: 13px;}
}
@media (max-width: 420px) {
    .footer { border-radius: 12px 12px 0 0;}
    .game-wrapper { padding: 8px 1vw 0 1vw;}
    #gameCanvas   { border-radius: 14px; }
}

/* Footer credit sticks to the page bottom even if less content */
.footer {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    z-index: 9999;
    background: rgba(153, 188, 207, 0.896);
    text-align: center;
    color: #7804f4;
    font-size: 1.07rem;
    letter-spacing: 0.5px;
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    opacity: 0.72;
    box-shadow: 0 -1.5px 16px 0 rgba(120, 90, 255, 0.11);
    border-radius: 24px 24px 0 0;
    padding: 12px 0 12px 0;
    transition: all 0.12s;
}

/* Make sure main content isn't hidden by footer */
body {
    padding-bottom: 48px;
}