:root {
    --primary: #ed4a4b;
    --primary-hover: #d43b3c;
    --bg-color: #f6f7f8;
    --white: #ffffff;
    --text-main: #333333;
    --text-muted: #8c8c8c;
    --border: #e6e6e6;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: var(--white);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    text-decoration: none;
    color: var(--text-main);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: transparent;
    object-fit: contain;
}

.nav-city {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

/* Hero */
.main-content {
    padding: 60px 0;
}

.hero-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.hero-text {
    flex: 1;
}

.badge {
    display: inline-block;
    background: rgba(237, 74, 75, 0.15);
    color: #c71e20;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.benefits {
    list-style: none;
}

.benefits li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    margin-bottom: 16px;
    font-weight: 500;
}

.benefits li svg {
    width: 24px;
    height: 24px;
    color: #17c964;
}

/* Filters */
.filters-container {
    margin-bottom: 40px;
}

.filters-scroll {
    display: flex;
    overflow-x: auto;
    gap: 12px;
    padding-bottom: 8px;
    margin-bottom: 12px;
    scrollbar-width: none;
}

.filters-scroll::-webkit-scrollbar {
    display: none;
}

.filter-chip {
    white-space: nowrap;
    padding: 8px 16px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-main);
    text-decoration: none;
    transition: all 0.2s ease;
}

.filter-chip:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-chip.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.chip-bank {
    background: #eef0f2;
    border-color: transparent;
    color: var(--text-muted);
}

.chip-bank:hover {
    background: var(--white);
    border-color: var(--border);
    color: var(--text-main);
}

/* Form Card */
.hero-form {
    flex: 0 0 420px;
}

.form-card {
    background: var(--white);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow);
}

.form-card h2 {
    font-size: 24px;
    margin-bottom: 24px;
}

.calc-section {
    margin-bottom: 24px;
}

.calc-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
}

.calc-header label {
    font-size: 14px;
    color: var(--text-muted);
}

.calc-value {
    font-size: 18px;
    font-weight: 600;
}

input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 24px;
    width: 24px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    margin-top: -10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: var(--border);
    border-radius: 2px;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 8px;
}

.calc-result {
    background: var(--bg-color);
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 24px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-item:first-child {
    margin-bottom: 8px;
}

.result-label {
    font-size: 14px;
    color: var(--text-muted);
}

.result-val {
    font-size: 20px;
    font-weight: 700;
}

.highlight {
    color: #17c964;
}

.btn-primary {
    display: block;
    width: 100%;
    background: var(--primary);
    color: var(--text-main);
    text-align: center;
    padding: 16px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.disclaimer {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    margin-top: 16px;
    line-height: 1.4;
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

.offers-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

.offer-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--white);
    border: 1px solid var(--border);
    padding: 12px 16px;
    border-radius: 12px;
    transition: border-color 0.2s ease;
}

.offer-item:hover {
    border-color: var(--primary);
}

.offer-name {
    font-weight: 600;
    font-size: 16px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
    width: auto;
    border-radius: 8px;
}

/* Info Section */
.info-section {
    margin-top: 40px;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.info-card {
    background: var(--white);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow);
}

.info-card h3 {
    font-size: 22px;
    margin-bottom: 20px;
    color: var(--text-main);
}

.info-card h4 {
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--text-main);
}

.info-card.full-width {
    grid-column: 1 / -1;
}

.info-card.bg-accent {
    background: var(--bg-color);
    border: 1px solid var(--border);
    box-shadow: none;
}

.check-list {
    list-style: none;
    padding: 0;
}

.check-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.5;
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary);
    font-weight: bold;
    font-size: 16px;
}

.split-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.split-card {
    background: var(--bg-color);
    padding: 24px;
    border-radius: 16px;
}

.req-subtitle {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 16px;
}

.quick-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

/* SEO Text block */
.seo-text {
    margin-top: 60px;
    margin-bottom: 20px;
    padding: 40px;
    background: var(--white);
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.seo-text h2 {
    font-size: 20px;
    margin-bottom: 16px;
    margin-top: 32px;
    color: var(--text-main);
}

.seo-text h2:first-child {
    margin-top: 0;
}

.seo-text p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-muted);
}

@media (max-width: 900px) {
    .hero-section {
        flex-direction: column;
    }
    
    .hero-form {
        flex: 1;
        width: 100%;
    }
    
    .hero-text h1 {
        font-size: 36px;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .split-cards {
        grid-template-columns: 1fr;
    }
    
    .quick-stats {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 500px) {
    .quick-stats {
        grid-template-columns: 1fr;
    }
    
    .seo-text {
        padding: 24px;
        margin-top: 40px;
    }
}