:root {
    --bg-color: #fdfaf6;
    --text-color: #4a4a4a;
    --card-bg: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --accent-color: #ff6b6b;
    --btn-bg: #ff6b6b;
    --btn-hover: #fa5252;
    --input-border: #e0e0e0;
    --bg-pattern: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ff6b6b' fill-opacity='0.05'%3E%3Cpath d='M0 38.59l2.83-2.83 1.41 1.41L1.41 40H0v-1.41zM0 1.4l2.83 2.83 1.41-1.41L1.41 0H0v1.41zM38.59 40l-2.83-2.83 1.41-1.41L40 38.59V40h-1.41zM40 1.41l-2.83 2.83-1.41-1.41L38.59 0H40v1.41zM20 18.59l2.83-2.83 1.41 1.41L21.41 20l2.83 2.83-1.41 1.41L20 21.41l-2.83 2.83-1.41-1.41L18.59 20l-2.83-2.83 1.41-1.41L20 18.59z'/%3E%3C/g%3E%3C/svg%3E");
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #f0f0f0;
    --card-bg: #2d2d2d;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --accent-color: #ff8787;
    --btn-bg: #e03131;
    --btn-hover: #c92a2a;
    --input-border: #4a4a4a;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    margin: 0;
    padding: 80px 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    background-image: var(--bg-pattern);
    transition: background-color 0.4s, color 0.4s;
    box-sizing: border-box;
}

.container {
    text-align: center;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.theme-toggle {
    position: absolute;
    top: -60px;
    right: 0;
}

#theme-btn {
    background: var(--card-bg);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 8px 15px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px var(--shadow-color);
}

#theme-btn:hover {
    background-color: var(--accent-color);
    color: white;
}

header h1 {
    font-size: 2.8rem;
    color: var(--accent-color);
    margin-bottom: 2rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.menu-card, .contact-card {
    background: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 24px;
    box-shadow: 0 20px 40px var(--shadow-color);
    transition: transform 0.3s ease, background-color 0.4s;
    margin-bottom: 2rem;
}

.menu-card:hover, .contact-card:hover {
    transform: translateY(-5px);
}

.recommendation-container {
    min-height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2.5rem;
}

.placeholder-text {
    font-size: 1.1rem;
    opacity: 0.6;
}

.menu-item {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-color);
    animation: bounceIn 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

#recommend-btn, .submit-btn {
    background-color: var(--btn-bg);
    color: white;
    border: none;
    padding: 18px 40px;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 10px 20px rgba(255, 107, 107, 0.2);
    width: 100%;
}

#recommend-btn:hover, .submit-btn:hover {
    background-color: var(--btn-hover);
    transform: scale(1.02);
    box-shadow: 0 15px 30px rgba(255, 107, 107, 0.3);
}

.contact-card h2 {
    color: var(--accent-color);
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.form-group {
    text-align: left;
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    opacity: 0.8;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border-radius: 12px;
    border: 2px solid var(--input-border);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-group textarea {
    height: 120px;
    resize: none;
}

@media (max-width: 480px) {
    header h1 {
        font-size: 2.2rem;
    }
    .menu-item {
        font-size: 1.8rem;
    }
    body {
        padding: 60px 0;
    }
}