:root {
    --bg-color: var(--tg-theme-bg-color, #0f172a);
    --secondary-bg: var(--tg-theme-secondary-bg-color, #1e293b);
    --text-color: var(--tg-theme-text-color, #f8fafc);
    --hint-color: var(--tg-theme-hint-color, #94a3b8);
    --link-color: var(--tg-theme-link-color, #38bdf8);
    --button-color: var(--tg-theme-button-color, #2563eb);
    --button-text: var(--tg-theme-button-text-color, #ffffff);
    --accent: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.15);
    --card-border: rgba(255, 255, 255, 0.08);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.5;
    padding-bottom: 30px;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 580px;
    margin: 0 auto;
    padding: 12px 16px;
}

/* Header */
.app-header {
    margin-bottom: 16px;
}

.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 28px;
    line-height: 1;
}

.logo-title {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-subtitle {
    font-size: 11px;
    color: var(--hint-color);
    font-weight: 500;
}

.icon-button {
    background: var(--secondary-bg);
    border: 1px solid var(--card-border);
    color: var(--text-color);
    border-radius: var(--radius-md);
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.2s;
}

.icon-button:active {
    transform: scale(0.94);
}

/* Profile tabs */
.profile-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    background: var(--secondary-bg);
    padding: 4px;
    border-radius: var(--radius-md);
    border: 1px solid var(--card-border);
}

.tab-btn {
    border: none;
    background: transparent;
    color: var(--hint-color);
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.tab-btn.active {
    background: var(--button-color);
    color: var(--button-text);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Filters Drawer */
.filters-panel {
    transition: max-height 0.3s ease, opacity 0.3s ease, margin 0.3s ease;
    overflow: hidden;
}

.filters-panel.collapsed {
    max-height: 0;
    opacity: 0;
    margin-bottom: 0;
    pointer-events: none;
}

.filters-panel:not(.collapsed) {
    max-height: 500px;
    opacity: 1;
    margin-bottom: 16px;
}

.filters-card {
    background: var(--secondary-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 16px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.panel-header h3 {
    font-size: 15px;
    font-weight: 600;
}

.close-btn {
    font-size: 20px;
    cursor: pointer;
    color: var(--hint-color);
    padding: 0 4px;
}

.filter-group {
    margin-bottom: 12px;
}

.filter-group label {
    display: block;
    font-size: 12px;
    color: var(--hint-color);
    margin-bottom: 6px;
    font-weight: 500;
}

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

.filter-group.half {
    flex: 1;
}

.segmented-control {
    display: flex;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    padding: 2px;
    border: 1px solid var(--card-border);
}

.segmented-control .segment {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--hint-color);
    font-family: inherit;
    font-size: 11px;
    font-weight: 500;
    padding: 6px 4px;
    border-radius: 6px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}

.segmented-control .segment.active {
    background: var(--button-color);
    color: var(--button-text);
    font-weight: 600;
}

.range-steppers {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-color);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 12px;
}

.range-steppers input {
    width: 38px;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
}

.select-field {
    width: 100%;
    background: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    font-family: inherit;
    font-size: 12px;
    outline: none;
}

.btn-primary {
    background: var(--button-color);
    color: var(--button-text);
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 16px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:active {
    opacity: 0.9;
    transform: scale(0.98);
}

.full-width {
    width: 100%;
}

/* Sections */
.section-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.section-title {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.badge-tag {
    font-size: 11px;
    background: var(--accent-glow);
    color: var(--accent);
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
}

/* Top 3 Compact Cards */
.top3-cards {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.top3-card {
    background: var(--secondary-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 12px 14px;
    position: relative;
    cursor: pointer;
    transition: all 0.2s;
}

.top3-card:active {
    transform: scale(0.99);
}

.top3-card.rank-1 {
    border-color: rgba(56, 189, 248, 0.4);
    background: linear-gradient(135deg, var(--secondary-bg) 0%, rgba(37, 99, 235, 0.12) 100%);
}

.top3-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.top3-rank-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
}

.top3-price {
    font-size: 16px;
    font-weight: 800;
    color: #4ade80;
}

.top3-arrow-chain {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-color);
    line-height: 1.4;
    word-break: break-word;
    background: var(--bg-color);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--button-color);
    margin-bottom: 6px;
}

.arrow-symbol {
    color: var(--accent);
    margin: 0 3px;
}

.top3-meta {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--hint-color);
}

/* Detailed Routes Cards */
.trips-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.trip-card {
    background: var(--secondary-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.2s;
}

.trip-card-summary {
    padding: 14px;
    cursor: pointer;
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.card-title-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.card-rank {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
}

.card-dates {
    font-size: 12px;
    color: var(--hint-color);
}

.card-price-group {
    text-align: right;
}

.card-price-main {
    font-size: 17px;
    font-weight: 800;
    color: #4ade80;
}

.card-price-sub {
    font-size: 11px;
    color: var(--hint-color);
}

/* Arrow chips inside full cards */
.arrow-flow-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
    margin-bottom: 10px;
}

.city-tag {
    background: var(--bg-color);
    border: 1px solid var(--card-border);
    padding: 2px 7px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
}

.flow-arrow {
    color: var(--accent);
    font-size: 10px;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.pill {
    font-size: 10.5px;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 500;
}

.pill-info {
    background: rgba(56, 189, 248, 0.12);
    color: #38bdf8;
}

.pill-sub {
    background: rgba(148, 163, 184, 0.12);
    color: #cbd5e1;
}

/* Detailed segments timeline */
.trip-card-details {
    padding: 0 14px 14px 14px;
    border-top: 1px solid var(--card-border);
    margin-top: 4px;
    background: rgba(0, 0, 0, 0.12);
}

.timeline-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--hint-color);
    margin: 12px 0 10px 0;
}

.timeline-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.timeline-leg {
    background: var(--secondary-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 10px 12px;
}

.leg-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.leg-mode {
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 5px;
}

.leg-date {
    font-size: 11.5px;
    color: var(--accent);
    font-weight: 600;
}

.leg-cities {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
}

.leg-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--hint-color);
    margin-bottom: 8px;
}

.leg-prices-box {
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    padding: 6px 8px;
    font-size: 11px;
    margin-bottom: 8px;
}

.leg-prices-box span {
    font-weight: 600;
    color: var(--text-color);
}

.btn-buy-ticket {
    display: block;
    width: 100%;
    text-align: center;
    background: var(--button-color);
    color: var(--button-text);
    text-decoration: none;
    font-size: 12px;
    font-weight: 600;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.btn-buy-ticket:active {
    opacity: 0.9;
}

.card-notes {
    margin-top: 12px;
    padding: 8px 10px;
    background: rgba(245, 158, 11, 0.1);
    border-left: 3px solid var(--warning);
    border-radius: 4px;
    font-size: 11px;
    color: #fbbf24;
}

.card-notes ul {
    padding-left: 16px;
    margin-top: 4px;
}

/* Spinner and Empty States */
.loading-state {
    text-align: center;
    padding: 40px 0;
    color: var(--hint-color);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(56, 189, 248, 0.2);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.empty-state {
    text-align: center;
    padding: 30px 16px;
    background: var(--secondary-bg);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--card-border);
}

.empty-state.hidden {
    display: none;
}

.empty-icon {
    font-size: 36px;
    margin-bottom: 8px;
}

.empty-state h3 {
    font-size: 15px;
    margin-bottom: 6px;
}

.empty-state p {
    font-size: 12px;
    color: var(--hint-color);
}

.app-footer {
    text-align: center;
    margin-top: 30px;
    font-size: 11px;
    color: var(--hint-color);
}

.footer-sub {
    font-size: 10px;
    opacity: 0.7;
    margin-top: 2px;
}

.btn-ghost {
    background: transparent;
    border: none;
    color: var(--hint-color);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
}