/* Рангҳои асосӣ */
:root {
    --bg-color: #1a1a2e;
    --card-bg: #16213e;
    --primary-color: #e94560;
    --text-white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-white);
    margin: 0;
    padding-bottom: 50px;
}

.navbar {
    background-color: var(--card-bg);
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.logo {
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 2px;
}

.logo span {
    color: var(--primary-color);
}

.container {
    max-width: 600px;
    margin: 20px auto;
    padding: 0 15px;
}

.card {
    background-color: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 20px;
    overflow: hidden;
}

.card-header {
    background-color: rgba(255,255,255,0.05);
    padding: 15px;
    font-size: 18px;
    font-weight: bold;
    display: flex;
    align-items: center;
}

.step {
    background-color: var(--primary-color);
    width: 25px;
    height: 25px;
    border-radius: 50%;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin-right: 10px;
    font-size: 14px;
}

.card-body {
    padding: 20px;
}

input[type="number"], input[type="file"] {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #30475e;
    background-color: #0f3460;
    color: white;
    box-sizing: border-box;
}

.diamond-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.diamond-item {
    border: 2px solid #30475e;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    cursor: pointer;
    transition: 0.3s;
}

.diamond-item:hover, .diamond-item.active {
    border-color: var(--primary-color);
    background-color: rgba(233, 69, 96, 0.1);
}

.diamond-item i {
    color: #00d2ff;
    font-size: 24px;
    display: block;
    margin-bottom: 10px;
}

.price {
    margin-top: 10px;
    font-weight: bold;
    color: #00ff88;
}

.btn-submit {
    width: 100%;
    padding: 15px;
    background-color: var(--primary-color);
    border: none;
    color: white;
    font-size: 18px;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 20px;
}

.btn-submit:hover {
    background-color: #c92c4a;
}