* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 24px;
    transition: background-color 0.3s ease;
}

.material-card {
    border-radius: 28px;
    transition: box-shadow 0.2s ease, background 0.3s ease;
    width: 100%;
    max-width: 900px;
    overflow: hidden;
}

.content {
    padding: 24px 24px 32px;
}

.header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    margin: 0;
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s ease;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    transform: scale(1.05);
}

.elevation-1 {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.4), 0 1px 2px 0 rgba(0, 0, 0, 0.3);
}

.create-card {
    border-radius: 24px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid;
}

.input-label {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.word-input-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.md-input {
    flex: 3;
    padding: 14px 20px;
    font-size: 1rem;
    font-family: 'Inter', monospace;
    border: 1.5px solid;
    border-radius: 48px;
    transition: all 0.2s;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
    outline: none;
}

.md-button {
    border: none;
    border-radius: 48px;
    padding: 0 24px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.15s;
    font-family: 'Inter', sans-serif;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.md-button:hover {
    transform: scale(0.98);
}

.share-link-card {
    border-radius: 20px;
    padding: 14px 18px;
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.8rem;
}

.share-link-text {
    font-family: monospace;
    word-break: break-all;
    flex: 1;
    font-weight: 500;
}

.copy-btn {
    border: 1px solid;
    border-radius: 40px;
    padding: 6px 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.1s;
}

.message-area {
    border-radius: 60px;
    padding: 12px 18px;
    text-align: center;
    font-weight: 500;
    font-size: 0.9rem;
    margin: 16px 0;
}

.action-group {
    display: flex;
    gap: 12px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.action-btn {
    flex: 1;
    border: none;
    padding: 12px;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    font-family: 'Inter';
    transition: background 0.1s;
    text-align: center;
}

footer {
    margin-top: 24px;
    text-align: center;
    font-size: 0.7rem;
    border-top: 1px solid;
    padding-top: 18px;
}

@media (max-width: 700px) {
    .content {
        padding: 16px;
    }
    .word-input-group {
        flex-direction: column;
    }
    .md-button {
        padding: 12px 24px;
        justify-content: center;
    }
    .action-group {
        flex-direction: column;
    }
}

@media (hover: none) and (pointer: coarse) {
    button, .md-button, .action-btn, .copy-btn, .theme-toggle {
        cursor: pointer;
        min-height: 44px;
    }
}