@font-face {
    font-family: 'Right Grotesk Text';
    src: url('_assets/_typefaces/PPRightGroteskText-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Right Grotesk Spatial';
    src: url('_assets/_typefaces/RightGrotesk-SpatialBold.woff2') format('woff2');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

:root {
    --bg-color: #F6F4EF;
    --text-color: #1E1E1B;
    --card-bg: #FFFFFF;
    
    --font-text: 'Right Grotesk Text', sans-serif;
    --font-heading: 'Right Grotesk Spatial', sans-serif;
}

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

html, body {
    height: 100%;
    width: 100%;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    justify-content: center;
    overflow: hidden; /* Prevent scrolling on mobile */
}

/* Mobile to Tablet Wrapper */
.app-container {
    width: 100%;
    max-width: 768px; /* max tablet size */
    height: 100dvh;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    position: relative;
}

.header {
    flex-shrink: 0;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo {
    width: 140px;
    display: block;
    margin-bottom: 28px; /* 0.5rem (8px) + 20px */
}

.sub-logo {
    font-family: var(--font-heading);
    font-weight: bold;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-color);
    text-align: center;
}

.game-container {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}

.card-wrapper {
    width: 100%;
    flex-grow: 1;
    max-height: 550px;
    perspective: 1000px; /* For potential 3D flips later */
}

.controls {
    margin-top: 2rem;
    width: 100%;
    display: flex;
    justify-content: center;
}

.btn {
    background-color: transparent;
    color: var(--text-color);
    font-family: var(--font-text);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--text-color);
    border-radius: 50px;
    padding: 0.8rem 2rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn:active {
    transform: scale(0.95);
    background-color: var(--text-color);
    color: var(--bg-color);
}

.card {
    background-color: var(--card-bg);
    border-radius: 20px;
    width: 100%;
    height: 100%;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0,0,0,0.05);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    user-select: none;
}

.card:active {
    transform: scale(0.97);
}

.card-level {
    font-family: var(--font-text);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    color: var(--text-color);
    opacity: 0.6;
    text-align: center;
}

.card-content {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-text {
    font-family: var(--font-heading);
    color: var(--text-color);
    font-size: clamp(2rem, 6vw, 3.5rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-align: center;
    text-wrap: balance;
}

.card-footer {
    font-family: var(--font-text);
    font-size: 0.85rem;
    text-align: center;
    color: var(--text-color);
    opacity: 0.4;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.loading-card {
    justify-content: center;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--text-color);
    opacity: 0.5;
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card.new-card {
    animation: slideIn 0.4s ease-out forwards;
}