:root {
    --body-bg: #2c3e50;
    --body-text: #ecf0f1;
    --card-bg: #34495e;
    --card-shadow: rgba(0,0,0,0.4);
    --number-bg: #2c3e50;
    --number-text: #ecf0f1;
    --button-bg: #e74c3c;
    --button-hover-bg: #c0392b;
    --button-text: #ffffff;
    --noise-color: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] {
    --body-bg: #ecf0f1;
    --body-text: #2c3e50;
    --card-bg: #ffffff;
    --card-shadow: rgba(0,0,0,0.1);
    --number-bg: #ecf0f1;
    --number-text: #2c3e50;
    --button-bg: #3498db;
    --button-hover-bg: #2980b9;
    --button-text: #ffffff;
    --noise-color: rgba(0, 0, 0, 0.05);
}

[data-theme="colorblind"] {
    --body-bg: #f7f7f2;
    --body-text: #1f2937;
    --card-bg: #ffffff;
    --card-shadow: rgba(0,0,0,0.15);
    --number-bg: #e6edf5;
    --number-text: #111827;
    --button-bg: #005f73;
    --button-hover-bg: #0a9396;
    --button-text: #ffffff;
    --noise-color: rgba(17, 24, 39, 0.04);
}

body {
    font-family: 'Helvetica Neue', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--body-bg);
    margin: 0;
    color: var(--body-text);
    position: relative;
    overflow: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image: linear-gradient(0deg, transparent 0%, var(--noise-color) 50%, transparent 100%),
                      linear-gradient(90deg, transparent 0%, var(--noise-color) 50%, transparent 100%);
    background-size: 3px 3px;
    opacity: 0.3;
    pointer-events: none;
    animation: noise 5s infinite linear;
}

@keyframes noise {
  0% { transform: translate(0,0); }
  10% { transform: translate(-5%,-5%); }
  20% { transform: translate(-10%,5%); }
  30% { transform: translate(5%,-10%); }
  40% { transform: translate(-5%,15%); }
  50% { transform: translate(-10%,-5%); }
  60% { transform: translate(15%,0); }
  70% { transform: translate(0,10%); }
  80% { transform: translate(-15%,0); }
  90% { transform: translate(10%,5%); }
  100% { transform: translate(5%,0); }
}


.container {
    text-align: center;
    background: var(--card-bg);
    padding: 40px 60px;
    border-radius: 20px;
    box-shadow: 0 15px 30px var(--card-shadow), 0 10px 10px rgba(0,0,0,0.2);
    z-index: 1;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.top-controls {
    position: absolute;
    top: 20px;
    right: 20px;
}

#theme-toggle {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

#theme-toggle:hover {
    background-color: var(--button-hover-bg);
}

h1 {
    margin-bottom: 30px;
    font-size: 36px;
    font-weight: 300;
}

.lotto-numbers {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

.number {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    background-color: var(--number-bg);
    color: var(--number-text);
    border-radius: 50%;
    margin: 0 10px;
    font-size: 28px;
    font-weight: bold;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2), 0 4px 6px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

[data-theme="colorblind"] .number {
    border: 2px solid #1f2937;
}

#generate {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 15px 30px;
    font-size: 20px;
    border-radius: 50px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

#generate:hover {
    background-color: var(--button-hover-bg);
}

#generate:active {
    transform: scale(0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.inquiry-section {
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--noise-color);
}

.inquiry-section h2 {
    margin: 0 0 14px;
    font-size: 22px;
}

.inquiry-form {
    max-width: 520px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.inquiry-form input,
.inquiry-form textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid rgba(128, 128, 128, 0.35);
    background: var(--number-bg);
    color: var(--number-text);
    font: inherit;
}

.inquiry-form input::placeholder,
.inquiry-form textarea::placeholder {
    color: rgba(130, 136, 145, 0.95);
}

.inquiry-form button {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 12px 18px;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.inquiry-form button:hover {
    background-color: var(--button-hover-bg);
}

.form-note {
    margin: 10px 0 0;
    font-size: 13px;
    opacity: 0.85;
}