/* style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
}

.app {
    max-width: 500px;
    margin: 0 auto;
    padding: 16px;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.header h1 {
    font-size: 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.user-balance {
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
}

.user-balance i {
    margin-right: 5px;
    color: #ffd700;
}

/* Navigation */
.nav {
    display: flex;
    justify-content: space-around;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    padding: 10px;
    border-radius: 30px;
    margin-bottom: 20px;
}

.nav-btn {
    background: none;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--tg-theme-hint-color, #999);
    cursor: pointer;
    padding: 5px;
    transition: all 0.3s;
}

.nav-btn.active {
    color: var(--tg-theme-button-color, #2481cc);
}

.nav-btn i {
    font-size: 20px;
    margin-bottom: 3px;
}

.nav-btn span {
    font-size: 12px;
}

/* Pages */
.page {
    display: none;
}

.page.active {
    display: block;
}

/* Search Bar */
.search-bar {
    display: flex;
    align-items: center;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    padding: 10px 15px;
    border-radius: 25px;
    margin-bottom: 15px;
}

.search-bar i {
    color: var(--tg-theme-hint-color, #999);
    margin-right: 10px;
}

.search-bar input {
    background: none;
    border: none;
    flex: 1;
    outline: none;
    font-size: 14px;
}

/* Categories */
.categories {
    display: flex;
    overflow-x: auto;
    gap: 10px;
    padding-bottom: 10px;
    margin-bottom: 15px;
    -webkit-overflow-scrolling: touch;
}

.category {
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    white-space: nowrap;
    color: var(--tg-theme-text-color, #000);
    cursor: pointer;
    transition: all 0.3s;
}

.category.active {
    background: var(--tg-theme-button-color, #2481cc);
    color: var(--tg-theme-button-text-color, #fff);
}

/* Service Card */
.service-card {
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    border-radius: 15px;
    padding: 15px;
    margin-bottom: 15px;
    cursor: pointer;
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-2px);
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.service-title {
    font-size: 18px;
    font-weight: bold;
}

.service-price {
    font-size: 20px;
    color: #4CAF50;
    font-weight: bold;
}

.service-seller {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--tg-theme-hint-color, #999);
    margin-bottom: 10px;
}

.service-description {
    font-size: 14px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.service-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--tg-theme-hint-color, #999);
}

.service-tag {
    background: rgba(128, 128, 128, 0.2);
    padding: 3px 8px;
    border-radius: 12px;
}

/* Forms */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--tg-theme-hint-color, #ddd);
    border-radius: 10px;
    background: var(--tg-theme-bg-color, #fff);
    color: var(--tg-theme-text-color, #000);
    font-size: 14px;
}

.row {
    display: flex;
    gap: 10px;
}

.half {
    flex: 1;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: var(--tg-theme-button-color, #2481cc);
    color: var(--tg-theme-button-text-color, #fff);
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s;
}

.submit-btn:hover {
    opacity: 0.9;
}

/* Profile */
.profile-header {
    text-align: center;
    margin-bottom: 20px;
}

.profile-avatar i {
    font-size: 80px;
    color: var(--tg-theme-hint-color, #999);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
}

.stat-card i {
    font-size: 20px;
    display: block;
    margin-bottom: 5px;
    color: var(--tg-theme-button-color, #2481cc);
}

.stat-value {
    font-size: 18px;
    font-weight: bold;
    display: block;
}

/* Orders */
.order-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.order-tab {
    flex: 1;
    padding: 10px;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.order-tab.active {
    background: var(--tg-theme-button-color, #2481cc);
    color: var(--tg-theme-button-text-color, #fff);
}