:root {
    --bg-color: #f0f0f0;
    --text-color: #333;
    --container-bg-color: #ffffff;
    --button-bg-color: #4CAF50;
    --button-text-color: white;
    --lotto-number-bg-color: #fff;
    --lotto-number-border-color: #ccc;
    --lotto-number-text-color: #333;
    --container-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    --button-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    --lotto-number-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --h1-text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

body.dark-mode {
    --bg-color: #212121;
    --text-color: #e0e0e0;
    --container-bg-color: #333333;
    --button-bg-color: #66bb6a;
    --button-text-color: white;
    --lotto-number-bg-color: #424242;
    --lotto-number-border-color: #616161;
    --lotto-number-text-color: #e0e0e0;
    --container-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    --button-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
    --lotto-number-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --h1-text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; /* Modern font */
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.5s ease, color 0.5s ease;
    flex-direction: column; /* Allow content to stack vertically */
}

.container {
    text-align: center;
    background-color: var(--container-bg-color);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--container-shadow);
    transition: background-color 0.5s ease, box-shadow 0.5s ease;
    position: relative;
    z-index: 1;
}

h1 {
    font-size: 2.8em;
    margin-bottom: 30px;
    color: var(--text-color);
    text-shadow: var(--h1-text-shadow);
    transition: color 0.5s ease, text-shadow 0.5s ease;
}

.lotto-numbers {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
}

.lotto-row {
    display: flex;
    justify-content: center;
    margin-bottom: 12px;
}

.lotto-number {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background-color: var(--lotto-number-bg-color);
    border: 2px solid var(--lotto-number-border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 26px;
    margin: 0 6px;
    font-weight: bold;
    color: var(--lotto-number-text-color);
    box-shadow: var(--lotto-number-shadow);
    transition: background-color 0.5s ease, border-color 0.5s ease, color 0.5s ease, box-shadow 0.3s ease, transform 0.3s ease;
    transform: scale(0); /* Initial state for pop-in animation */
    opacity: 0;
    animation: popIn 0.5s ease-out forwards; /* Applied via JS for staggered effect */
}

@keyframes popIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    80% {
        transform: scale(1.1);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

#draw-button,
#theme-toggle {
    padding: 12px 25px;
    font-size: 1.1em;
    cursor: pointer;
    border: none;
    border-radius: 8px;
    background-color: var(--button-bg-color);
    color: var(--button-text-color);
    box-shadow: var(--button-shadow);
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    letter-spacing: 0.5px;
    font-weight: 600;
}

#draw-button:hover,
#theme-toggle:hover {
    transform: translateY(-3px);
    box-shadow: var(--button-shadow), 0 8px 15px rgba(0, 0, 0, 0.25);
}

#draw-button:active,
#theme-toggle:active {
    transform: translateY(0);
    box-shadow: var(--button-shadow);
}

#theme-toggle {
    position: absolute;
    top: 25px;
    right: 25px;
    background-color: #007bff; /* Specific color for toggle */
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.3);
}

body.dark-mode #theme-toggle {
    background-color: #1a73e8; /* Darker blue for dark mode toggle */
    box-shadow: 0 4px 10px rgba(26, 115, 232, 0.4);
}

#theme-toggle:hover {
    background-color: #0056b3;
}

body.dark-mode #theme-toggle:hover {
    background-color: #0d47a1;
}

/* Partnership Form Styling */
.partnership-form-container {
    margin-top: 40px;
    padding: 30px;
}

.partnership-form-container h2 {
    font-size: 2em;
    margin-bottom: 25px;
    color: var(--text-color);
    text-shadow: var(--h1-text-shadow);
    transition: color 0.5s ease, text-shadow 0.5s ease;
}

.partnership-form-container form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.partnership-form-container label {
    text-align: left;
    font-size: 1.1em;
    font-weight: 600;
    color: var(--text-color);
}

.partnership-form-container input[type="text"],
.partnership-form-container input[type="email"],
.partnership-form-container textarea {
    padding: 12px;
    border: 1px solid var(--lotto-number-border-color);
    border-radius: 8px;
    font-size: 1em;
    background-color: var(--lotto-number-bg-color);
    color: var(--text-color);
    transition: border-color 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

.partnership-form-container input[type="text"]:focus,
.partnership-form-container input[type="email"]:focus,
.partnership-form-container textarea:focus {
    outline: none;
    border-color: var(--button-bg-color);
    box-shadow: 0 0 0 3px rgba(var(--button-bg-color-rgb), 0.3); /* Assuming RGB for dynamic shadow */
}

.partnership-form-container textarea {
    resize: vertical;
    min-height: 100px;
}

.partnership-form-container button[type="submit"] {
    padding: 12px 25px;
    font-size: 1.1em;
    cursor: pointer;
    border: none;
    border-radius: 8px;
    background-color: #007bff; /* Different color for submit button */
    color: white;
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.3);
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-top: 15px;
}

.partnership-form-container button[type="submit"]:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 123, 255, 0.4);
    background-color: #0056b3;
}

.partnership-form-container button[type="submit"]:active {
    transform: translateY(0);
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.3);
}

body.dark-mode .partnership-form-container button[type="submit"] {
    background-color: #1a73e8;
    box-shadow: 0 4px 10px rgba(26, 115, 232, 0.4);
}

body.dark-mode .partnership-form-container button[type="submit"]:hover {
    background-color: #0d47a1;
    box-shadow: 0 8px 15px rgba(26, 115, 232, 0.5);
}

.main-content-wrapper {
    display: flex;
    flex-direction: column;
    justify-content: flex-start; /* Align content to top within wrapper */
    align-items: center;
    min-height: 100vh; /* Ensure wrapper takes at least full viewport height */
    padding: 20px;
    box-sizing: border-box;
    width: 100%; /* Ensure it spans full width */
}

.skip-button {
    margin-top: 25px;
    padding: 12px 25px;
    font-size: 1.1em;
    cursor: pointer;
    border: none;
    border-radius: 8px;
    background-color: #ffc107; /* A distinct color for skip button */
    color: #333;
    box-shadow: 0 4px 10px rgba(255, 193, 7, 0.3);
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.skip-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(255, 193, 7, 0.4);
    background-color: #e0a800;
}

.skip-button:active {
    transform: translateY(0);
    box-shadow: 0 4px 10px rgba(255, 193, 7, 0.3);
}

/* Ensure partnership form container is not too wide */
.partnership-form-container {
    max-width: 500px;
    width: 100%;
}