:root {
    --tg-theme-bg-color: #ffffff;
    --tg-theme-text-color: #000000;
    --tg-theme-hint-color: #999999;
    --tg-theme-link-color: #2481cc;
    --tg-theme-button-color: #2481cc;
    --tg-theme-button-text-color: #ffffff;
    --tg-theme-secondary-bg-color: #f4f4f5;
    
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-bg: rgba(255, 255, 255, 0.8);
    --border-radius: 16px;
}

/* Telegram Dark Mode Support */
body.dark {
    --tg-theme-bg-color: #1c1c1d;
    --tg-theme-text-color: #ffffff;
    --tg-theme-secondary-bg-color: #2c2c2e;
    --card-bg: rgba(44, 44, 46, 0.8);
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Outfit', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--tg-theme-bg-color);
    color: var(--tg-theme-text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

#app {
    padding: 20px;
    padding-bottom: 80px; /* Space for tab bar */
}

header {
    margin-bottom: 30px;
    animation: fadeInDown 0.8s ease-out;
}

header h1 {
    font-size: 28px;
    margin: 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--tg-theme-hint-color);
    margin: 5px 0 0;
}

h2 {
    font-size: 20px;
    margin-bottom: 15px;
}

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

.service-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
    backdrop-filter: blur(10px);
}

.service-card:active {
    transform: scale(0.98);
}

.service-card h3 {
    margin: 0 0 10px;
    font-size: 18px;
}

.service-card .price {
    font-weight: 700;
    color: var(--tg-theme-link-color);
    font-size: 16px;
}

.service-card .category {
    font-size: 12px;
    background: var(--tg-theme-secondary-bg-color);
    padding: 2px 8px;
    border-radius: 10px;
    color: var(--tg-theme-hint-color);
    margin-left: 10px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: flex-end;
    z-index: 1000;
    transition: opacity 0.3s;
}

.modal.hidden {
    display: none;
    opacity: 0;
}

.modal-content {
    background: var(--tg-theme-bg-color);
    width: 100%;
    padding: 25px;
    border-radius: 24px 24px 0 0;
    animation: slideUp 0.3s ease-out;
}

.close-btn {
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: var(--tg-theme-hint-color);
}

.input-group {
    margin-top: 20px;
}

.input-group label {
    display: block;
    font-size: 14px;
    margin-bottom: 8px;
    font-weight: 600;
}

input {
    width: 100%;
    padding: 12px 15px;
    border-radius: 12px;
    border: 1px solid var(--tg-theme-secondary-bg-color);
    background: var(--tg-theme-secondary-bg-color);
    color: var(--tg-theme-text-color);
    font-family: inherit;
    font-size: 16px;
}

input:focus {
    outline: none;
    border-color: var(--tg-theme-link-color);
}

.price-summary {
    margin: 20px 0;
    display: flex;
    justify-content: space-between;
    font-size: 18px;
    font-weight: 700;
}

button#submit-order-btn {
    width: 100%;
    padding: 15px;
    border-radius: 14px;
    border: none;
    background: var(--primary-gradient);
    color: white;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(118, 75, 162, 0.3);
}

/* Tab Bar */
.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--tg-theme-bg-color);
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    border-top: 1px solid var(--tg-theme-secondary-bg-color);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.tab-item {
    background: none;
    border: none;
    color: var(--tg-theme-hint-color);
    font-weight: 600;
    padding: 10px;
    cursor: pointer;
    transition: color 0.3s;
}

.tab-item.active {
    color: var(--tg-theme-link-color);
}

.hidden {
    display: none !important;
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}