:root {
    --bg-color-light: #F5F5F7;
    --text-color-light: #000000;
    --card-bg-light: rgba(255, 255, 255, 0.5);
    --border-color-light: rgba(255, 255, 255, 0.2);
    --button-outline-light: #000000;

    --bg-color-dark: #000000;
    --text-color-dark: #FFFFFF;
    --card-bg-dark: rgba(30, 30, 30, 0.5);
    --border-color-dark: rgba(255, 255, 255, 0.1);
    --button-outline-dark: #FFFFFF;
}

body {
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.05em;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
}

body.light-theme {
    background-color: var(--bg-color-light);
    color: var(--text-color-light);
}

body.dark-theme {
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s, border-color 0.3s;
}

.light-theme .container {
    background-color: var(--card-bg-light);
    border-color: var(--border-color-light);
}

.dark-theme .container {
    background-color: var(--card-bg-dark);
    border-color: var(--border-color-dark);
}

h1#main-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(to right, #8A2BE2, #4169E1); /* Purple to RoyalBlue */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#answer {
    font-size: 4rem;
    font-weight: 700;
    text-align: center;
    min-height: 80px;
    margin-bottom: 30px;
    background: linear-gradient(to right, #8A2BE2, #4169E1); /* Purple to RoyalBlue - Same as h1 */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#question {
    width: 100%;
    border: none;
    background: transparent;
    border-bottom: 1px solid;
    padding: 10px 0;
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: 30px;
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.05em;
    transition: border-color 0.3s;
}

.light-theme #question {
    border-color: var(--text-color-light);
    color: var(--text-color-light);
}

.dark-theme #question {
    border-color: var(--text-color-dark);
    color: var(--text-color-dark);
}

#question:focus {
    outline: none;
}

#question::placeholder {
    color: grey;
}

#askButton {
    background: transparent;
    border: 1px solid;
    border-radius: 20px;
    padding: 10px 30px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s, border-color 0.3s;
}

.light-theme #askButton {
    border-color: var(--button-outline-light);
    color: var(--button-outline-light);
}

.dark-theme #askButton {
    border-color: var(--button-outline-dark);
    color: var(--button-outline-dark);
}

#askButton:hover {
    background-color: var(--button-outline-dark);
    color: var(--bg-color-dark);
}

.dark-theme #askButton:hover {
    background-color: var(--button-outline-dark);
    color: var(--bg-color-dark);
}

.light-theme #askButton:hover {
    background-color: var(--button-outline-light);
    color: var(--bg-color-light);
}

#theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: 1px solid;
    border-radius: 20px;
    padding: 8px 12px;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s;
}

.light-theme #theme-toggle {
    border-color: var(--button-outline-light);
    color: var(--button-outline-light);
}

.dark-theme #theme-toggle {
    border-color: var(--button-outline-dark);
    color: var(--button-outline-dark);
}