/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--surface-color);
    border-bottom: 4px solid var(--surface-border);
    border-radius: 16px;
    margin-bottom: 24px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

h1 {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    margin: 0;
    color: var(--text-primary);
    text-shadow: 2px 2px 0 rgba(0,0,0,0.2);
}

/* Score Board */
.score-board {
    display: flex;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    align-items: center;
}

.score-board.hidden { display: none; }

.score {
    display: flex;
    align-items: center;
    gap: 6px;
    background: #0f172a;
    padding: 6px 12px;
    border-radius: 12px;
    border: 2px solid var(--surface-border);
    font-weight: 700;
    color: var(--warning-color);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.3);
}

.coin-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    background: radial-gradient(circle at 30% 30%, #fcd34d, #d97706);
    border-radius: 50%;
    border: 2px solid #b45309;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    position: relative;
    color: transparent; /* Hide emoji if present */
}
.coin-icon::after {
    content: '$';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    color: #78350f;
    font-size: 10px;
    font-weight: 900;
    text-shadow: 0 1px 0 rgba(255,255,255,0.4);
}

/* Buttons */
button {
    background: var(--tile-bg);
    color: var(--tile-text);
    border: none;
    border-bottom: 4px solid var(--tile-shadow);
    padding: 14px;
    font-size: 1.2rem;
    font-weight: 800;
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.1s cubic-bezier(0.34, 1.56, 0.64, 1);
    font-family: var(--font-main);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
}

button:hover {
    transform: translateY(-2px);
    filter: brightness(1.05);
}

button:active { 
    transform: translateY(2px);
    border-bottom-width: 2px;
    /* No margin hack needed if we accept the shift, or use translate */
}

button.primary {
    background: var(--accent-color);
    color: #fff;
    border-bottom-color: var(--accent-dark);
    text-shadow: 0 1px 0 rgba(0,0,0,0.2);
}

button.secondary {
    background: var(--surface-color);
    color: var(--text-secondary);
    border: 2px solid var(--surface-border);
    border-bottom-width: 4px;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    border-bottom-width: 4px;
    filter: grayscale(1);
}

/* Dialogs */
dialog {
    background: var(--surface-color);
    color: var(--text-primary);
    border: 4px solid var(--surface-border);
    border-radius: 20px;
    padding: 0;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    max-width: 90vw;
    width: 360px;
}
dialog::backdrop { background: rgba(0, 0, 0, 0.8); backdrop-filter: blur(4px); }

.dialog-content { padding: 32px; text-align: center; }
.dialog-content h3 { margin: 0 0 16px; font-size: 1.5rem; font-weight: 800; text-transform: uppercase; }
.dialog-content p { color: var(--text-secondary); margin: 0 0 32px; font-size: 1.1rem; }
.dialog-actions { display: flex; gap: 16px; justify-content: center; }
.dialog-actions button { flex: 1; padding: 12px; font-size: 1rem; }

#definition-dialog { width: 400px; max-height: 80vh; overflow-y: auto; }
#def-text { white-space: pre-wrap; text-align: left; line-height: 1.6; font-size: 1rem; }
#def-text a {
    color: var(--accent-color);
    text-decoration: none;
    border-bottom: 1px solid var(--accent-color);
    transition: opacity 0.2s;
}
#def-text a:hover {
    opacity: 0.8;
}

/* Toast & Notifications */
#toast-container {
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 100;
    pointer-events: none;
}

.toast {
    background: var(--surface-color);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    border: 2px solid var(--surface-border);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    animation: slideDown 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.toast.success { border-color: var(--success-color); color: var(--success-color); }
.toast.bonus { border-color: var(--warning-color); color: var(--warning-color); }
.toast.error { border-color: var(--error-color); color: var(--error-color); }

#app-notification {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
    width: max-content;
    max-width: 90vw;
}

.notification {
    background: var(--surface-color);
    color: #f8fafc;
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    pointer-events: auto;
    animation: slideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 2px solid var(--accent-color);
}
.notification button { padding: 8px 16px; font-size: 0.9rem; margin: 0; border-bottom-width: 2px; }

.round, .discovery {
    background: var(--surface-border);
    padding: 6px 10px;
    border-radius: 12px;
    font-weight: 700;
    color: var(--text-secondary);
}

.discovery {
    color: #60a5fa; /* Blueish */
    display: flex;
    align-items: center;
    gap: 4px;
}