:root {
    --color-accent: #8cceef;
    --color-accent-soft: #e3f4fd;
    --color-bg: #f5f7fa;
    --color-white: #ffffff;
    --color-black: #2f333d;
    --color-gray: #7a818f;
    --color-border: #dde2ec;
    --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.06);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-black);
}

/* CONTAINERS */

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 16px;
}

/* HEADER */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
}

.logo-block {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-img {
    height: 52px;
    width: auto;
    display: block;
}

.main-nav {
    display: flex;
    gap: 18px;
    align-items: center;
}

.nav-link {
    font-size: 14px;
    text-decoration: none;
    color: var(--color-gray);
    padding: 6px 10px;
    border-radius: 999px;
    transition: background 0.2s, color 0.2s;
}

.nav-link:hover {
    color: var(--color-black);
    background: rgba(140, 206, 239, 0.12);
}

.nav-link.active {
    color: var(--color-black);
    background: var(--color-accent-soft);
}

/* HERO */

.hero {
    padding: 40px 0 30px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.3fr);
    gap: 30px;
    align-items: center;
}

.hero h1 {
    font-size: 28px;
    margin-bottom: 10px;
}

.hero-subtitle {
    font-size: 15px;
    color: var(--color-gray);
    max-width: 640px;
}

.hero-buttons {
    margin-top: 22px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-note {
    margin-top: 10px;
    font-size: 13px;
    color: var(--color-gray);
}

.hero-card {
    background: var(--color-white);
    box-shadow: var(--shadow-soft);
    border-radius: 14px;
    padding: 20px 22px;
}

.hero-card h2 {
    margin-top: 0;
    font-size: 18px;
}

.hero-card ul {
    padding-left: 18px;
    margin: 8px 0 0;
    color: var(--color-gray);
    font-size: 14px;
}

/* BUTTONS */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.btn-full {
    width: 100%;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-black);
    border-color: var(--color-accent);
    box-shadow: 0 6px 18px rgba(140, 206, 239, 0.5);
}

.btn-primary:hover {
    background: #6fbde7;
    border-color: #6fbde7;
}

.btn-outline {
    background: transparent;
    color: var(--color-black);
    border-color: var(--color-accent);
}

.btn-outline:hover {
    background: var(--color-accent-soft);
}

/* SECTIONS */

.section {
    padding: 40px 0;
}

.section-alt {
    background: rgba(255, 255, 255, 0.8);
}

.section-title {
    font-size: 22px;
    margin-bottom: 22px;
    text-align: center;
}

.section-intro {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 24px;
    color: var(--color-gray);
}

/* CARDS GRID */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.card {
    background: var(--color-white);
    border-radius: 14px;
    padding: 18px 20px;
    box-shadow: var(--shadow-soft);
}

.card h3 {
    margin-top: 0;
    font-size: 18px;
    margin-bottom: 8px;
}

.card p {
    font-size: 14px;
    color: var(--color-gray);
}

.cards-payment {
    height: 100px;
    width: auto;
}

/* PRICE LIST */

.price-list {
    list-style: none;
    padding: 0;
    margin: 10px 0 18px;
    font-size: 14px;
}

.price-list li {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px dashed var(--color-border);
}

.price-list span {
    color: var(--color-gray);
}

.price-list strong {
    font-weight: 600;
}

/* COMPARE TABLE */

.table-wrapper {
    overflow-x: auto;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    background: var(--color-white);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.compare-table th,
.compare-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
}

.compare-table thead {
    background: var(--color-accent-soft);
}

.compare-table th {
    font-weight: 600;
}

.compare-table tr:last-child td {
    border-bottom: none;
}

.check {
    text-align: center;
    color: var(--color-accent);
    font-weight: 700;
}

.table-note {
    margin-top: 10px;
    font-size: 13px;
    color: var(--color-gray);
}

/* AGREEMENT */

.agreement-box {
    background: var(--color-white);
    border-radius: 14px;
    box-shadow: var(--shadow-soft);
    padding: 16px;
    max-height: 75vh;
    overflow: auto;
}

.agreement-text {
    margin: 0;
    font-family: "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 13px;
    white-space: pre-wrap;
}

/* BILLING PAGE */

.billing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
    align-items: flex-start;
}

.billing-card h2 {
    margin-top: 0;
    font-size: 18px;
}

.billing-subtitle {
    font-size: 14px;
    color: var(--color-gray);
}

.billing-options {
    margin-top: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.billing-option-btn {
    width: 100%;
    text-align: left;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    padding: 10px 12px;
    font-size: 14px;
    background: var(--color-white);
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.billing-option-btn:hover {
    border-color: var(--color-accent);
    background: var(--color-accent-soft);
}

.billing-option-btn.active {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-soft);
    background: var(--color-accent-soft);
}

.billing-summary {
    min-height: 100%;
}

.summary-line {
    font-size: 14px;
    margin: 4px 0;
}

.summary-price span {
    font-weight: 600;
}

.pay-buttons {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pay-note {
    margin-top: 10px;
    font-size: 12px;
    color: var(--color-gray);
}

/* FOOTER */

.site-footer {
    margin-top: 30px;
    background: #ffffff;
    border-top: 1px solid var(--color-border);
    padding: 14px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--color-gray);
}

.footer-logo {
    height: 40px;
    width: auto;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-center {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-right {
    text-align: right;
}

/* RESPONSIVE */

@media (max-width: 768px) {
    .hero-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-right {
        text-align: left;
    }

    .main-nav {
        gap: 8px;
    }
}