:root {
    --bg-color: #121213;
    --text-color: #ffffff;
    --tile-border: #3a3a3c;
    --tile-active: #565758;
    --tile-correct: #538d4e;
    --tile-present: #b59f3b;
    --tile-absent: #3a3a3c;
    --key-bg: #818384;
    --key-hover: #9fa1a3;

    /* Premium Gradients/Shadows */
    --modal-bg: rgba(25, 25, 27, 0.95);
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.3);

    font-family: 'Outfit', sans-serif;
}

/* Valentine Mode Variables Override */
body.valentine-mode {
    --bg-color: #2a0a0a;
    --text-color: #ffb7b2;
    --tile-border: #800020;
    --tile-active: #ff0000;
    --tile-correct: #e91e63;
    --tile-present: #ff69b4;
    --tile-absent: #4a0404;
    --key-bg: #5c1818;
    --key-hover: #a32424;
    --modal-bg: rgba(60, 10, 20, 0.95);
    transition: background-color 1s ease;
}

body.valentine-mode header h1 {
    background: linear-gradient(45deg, #ff0055, #ff99aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 15px rgba(255, 0, 85, 0.4);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    overflow: hidden;
    transition: background-color 0.3s;
}

.app-container {
    width: 100%;
    max-width: 500px;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1rem;
}

header {
    border-bottom: 1px solid var(--tile-border);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

header h1 {
    font-weight: 800;
    letter-spacing: 0.1em;
    font-size: 2rem;
    background: linear-gradient(45deg, #ffffff, #a0a0a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 10px rgba(255, 255, 255, 0.1);
    transition: all 0.5s;
}

#game-container {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

#grid-container {
    display: grid;
    grid-template-rows: repeat(6, 1fr);
    gap: 5px;
    width: 300px;
    height: 360px;
}

.grid-row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
}

.grid-row.short {
    grid-template-columns: repeat(3, 1fr);
    width: 180px;
    margin: 0 auto;
}

.tile {
    border: 2px solid var(--tile-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    text-transform: uppercase;
    user-select: none;
    transition: transform 0.2s, background-color 0.2s, border-color 0.2s, color 0.2s;
}

.tile[data-state="active"] {
    border-color: var(--tile-active);
    animation: pop 0.1s ease-in-out;
}

.tile[data-state="correct"] {
    background-color: var(--tile-correct);
    border-color: var(--tile-correct);
}

.tile[data-state="present"] {
    background-color: var(--tile-present);
    border-color: var(--tile-present);
}

.tile[data-state="absent"] {
    background-color: var(--tile-absent);
    border-color: var(--tile-absent);
}

.tile[data-state="heart"] {
    background-color: transparent;
    border-color: transparent;
    color: #ff0055;
    font-size: 2rem;
    text-shadow: 0 0 10px rgba(255, 0, 85, 0.5);
}

.tile.flip {
    animation: flip 0.6s ease-in;
}

/* Animations */
@keyframes pop {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

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

@keyframes flip {
    0% {
        transform: rotateX(0);
    }

    50% {
        transform: rotateX(90deg);
    }

    100% {
        transform: rotateX(0);
    }
}

/* Keyboard */
#keyboard-container {
    margin-bottom: 1rem;
}

.keyboard-row {
    display: flex;
    justify-content: center;
    margin-bottom: 8px;
    touch-action: manipulation;
}

.key {
    background-color: var(--key-bg);
    color: white;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 58px;
    margin: 0 3px;
    user-select: none;
    flex: 1;
    text-transform: uppercase;
    transition: background-color 0.1s, transform 0.1s;
    box-shadow: 0 2px 0 rgba(0, 0, 0, 0.2);
}

.key:active {
    transform: translateY(2px);
    box-shadow: none;
}

.key.large {
    flex: 1.5;
    font-size: 0.8rem;
}

/* Modal */
#modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 1;
    transition: opacity 0.3s;
}

#modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

#game-modal {
    background: var(--modal-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--tile-border);
    max-width: 80%;
}

#game-modal h2 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

#game-modal p {
    margin-bottom: 1.5rem;
    color: #a0a0a0;
}

#restart-btn {
    background: var(--tile-correct);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    font-size: 1rem;
    transition: filter 0.2s;
}

#restart-btn:hover {
    filter: brightness(1.1);
}

/* Secret Button */
#secret-btn {
    position: fixed;
    bottom: 10px;
    left: 10px;
    font-size: 20px;
    color: #3a3a3c;
    /* hidden in plain sight */
    cursor: pointer;
    opacity: 0.1;
    transition: opacity 0.3s, color 0.3s;
    z-index: 200;
    user-select: none;
}

#secret-btn:hover {
    opacity: 1;
    color: #ff0055;
    transform: scale(1.2);
}

#secret-btn.active {
    color: #ff0055;
    opacity: 0.8;
}

/* Rejection Screen */
body.rejected {
    background-color: black !important;
    transition: background-color 2s ease;
}

body.rejected * {
    display: none !important;
}

/* Celebration Screen */
body.celebrating {
    background-color: #ffb7b2;
    overflow: hidden;
}

.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: #f00;
    animation: fall linear forwards;
}

@keyframes fall {
    to {
        transform: translateY(100vh) rotate(720deg);
    }
}