:root {
    --background-gradient-start: #6dd5ed;
    --background-gradient-end: #2193b0;
    --text-color: #fff;
    --container-bg-color: rgba(255, 255, 255, 0.1);
    --input-bg-color: rgba(255, 255, 255, 0.2);
    --input-placeholder-color: #eee;
    --button-bg-color: #ff6b6b;
    --button-hover-bg-color: #ff8787;
    --text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    --card-bg-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] {
    --background-gradient-start: #232526;
    --background-gradient-end: #414345;
    --text-color: #fff;
    --container-bg-color: rgba(0, 0, 0, 0.2);
    --input-bg-color: rgba(0, 0, 0, 0.3);
    --input-placeholder-color: #ccc;
    --button-bg-color: #888;
    --button-hover-bg-color: #999;
    --text-shadow: none;
    --card-bg-color: rgba(0, 0, 0, 0.25);
}

body {
    font-family: 'Helvetica Neue', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 50px;
    padding: 0 20px;
    background: linear-gradient(to right, var(--background-gradient-start), var(--background-gradient-end));
    color: var(--text-color);
    transition: background 0.5s ease, color 0.5s ease;
}

h1 {
    text-shadow: var(--text-shadow);
    margin-bottom: 40px;
}

.input-container {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    width: 100%;
    max-width: 600px;
}

#country-input, #region-input {
    flex: 1;
    padding: 15px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    background-color: var(--input-bg-color);
    color: var(--text-color);
}

#country-input::placeholder, #region-input::placeholder {
    color: var(--input-placeholder-color);
}

#get-suggestions-btn {
    padding: 15px 30px;
    font-size: 18px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: var(--button-bg-color);
    color: #fff;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: background-color 0.3s ease;
}

#get-suggestions-btn:hover {
    background-color: var(--button-hover-bg-color);
}

.suggestions-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    width: 100%;
    max-width: 1200px;
}

.plant-card {
    background-color: var(--card-bg-color);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    text-align: center;
}

.plant-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 15px;
}

.plant-card h3 {
    margin-top: 0;
}

.theme-switch-wrapper {
    display: flex;
    align-items: center;
    position: absolute;
    top: 20px;
    right: 20px;
}

.theme-switch {
    display: inline-block;
    height: 34px;
    position: relative;
    width: 60px;
}

.theme-switch input {
    display:none;
}

.slider {
    background-color: #ccc;
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
}

.slider:before {
    background-color: #fff;
    bottom: 4px;
    content: "";
    height: 26px;
    left: 4px;
    position: absolute;
    transition: .4s;
    width: 26px;
}

input:checked + .slider {
    background-color: #2196F3;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}