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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

:root {
    --primary: #1a2b3c;
    --gold: #d4af37;
    --gold-dark: #8a6a0e;
    --light: #f7f8fa;
    --gray: #666;
    --darkgray: #333;
    --white: #ffffff;
    --border-color: #dddddd;
}

body {
    color: var(--darkgray);
    background-color: var(--white);
    line-height: 1.65;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--primary);
    position: sticky;
    top: 0;
    z-index: 999;
}

.nav-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    position: relative;
}

.logo {
    color: var(--white);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo a {
    color: inherit;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-menu > li {
    position: relative;
}

.nav-menu a {
    color: #ddd;
    text-decoration: none;
    transition: color 0.25s;
    display: block;
    font-size: 15px;
    padding: 6px 2px;
}

.nav-menu a.active {
    color: var(--gold);
}

.nav-menu a:hover {
    color: var(--gold);
}

.nav-menu a:focus-visible,
.footer-col a:focus-visible,
.footer-social a:focus-visible,
.copyright a:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    color: #fff;
    font-size: 26px;
    line-height: 1;
    background: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.mobile-menu-btn:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.page-banner {
    background-size: cover;
    background-position: center;
    padding: 100px 0;
    color: #fff;
    text-align: center;
}

.page-banner h1 {
    font-size: 42px;
    margin-bottom: 10px;
    line-height: 1.25;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

.page-banner p {
    font-size: 17px;
    opacity: 0.92;
    max-width: 700px;
    margin: 0 auto;
}

section {
    padding: 70px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 48px;
}

.section-title h2 {
    font-size: 34px;
    color: var(--primary);
    margin-bottom: 10px;
    line-height: 1.3;
}

.section-title p {
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

.tab-wrap {
    margin-bottom: 40px;
}

.tab-list {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    border: none;
    background: transparent;
    padding: 14px 28px;
    font-size: 17px;
    font-family: inherit;
    font-weight: bold;
    color: var(--gray);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: color 0.25s, border-color 0.25s;
}

.tab-btn.active {
    color: var(--gold-dark);
    border-bottom-color: var(--gold);
}

.tab-btn:hover:not(.active) {
    color: var(--primary);
}

.tab-btn:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: -3px;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.btn {
    padding: 13px 28px;
    border-radius: 2px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s, border-color 0.3s;
    display: inline-block;
    text-align: center;
}

.btn-gold {
    background-color: var(--gold);
    color: #111;
}

.btn-gold:hover {
    background: #b8942c;
}

.btn-outline {
    border: 1px solid #fff;
    color: #fff;
}

.btn-outline:hover {
    background: #ffffff22;
}

.btn-group {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    margin-top: 16px;
    justify-content: center;
}

.cta-block {
    background: linear-gradient(90deg, var(--primary), #24384d);
    color: #fff;
    text-align: center;
    padding: 65px 20px;
}

.cta-block h2 {
    line-height: 1.35;
}

.cta-block p {
    margin: 14px 0 28px;
    opacity: 0.92;
}

footer {
    background-color: #111c28;
    color: #bbbbbb;
    padding: 50px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
}

.footer-col h4 {
    color: #fff;
    margin-bottom: 18px;
    font-size: 17px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 4px;
}

.footer-col a {
    color: #bbbbbb;
    text-decoration: none;
    display: inline-block;
    padding: 7px 0;
    transition: color 0.25s;
}

.footer-col a:hover {
    color: var(--gold);
}

.footer-social {
    margin-top: 14px;
}

.footer-social a {
    display: inline-block;
    font-size: 22px;
    color: #bbbbbb;
    margin-right: 14px;
    transition: color 0.25s;
}

.footer-social a:hover {
    color: var(--gold);
}

.copyright {
    margin-top: 40px;
    padding-top: 20px;
    border-top: #27384b solid 1px;
    text-align: center;
    font-size: 14px;
}

.copyright .note {
    display: block;
    font-size: 13px;
    margin-top: 6px;
    line-height: 1.6;
}

.copyright a {
    color: #8e9aa6;
    text-decoration: none;
    display: inline-block;
    padding: 6px 0;
    font-size: 13px;
    transition: color 0.25s;
}

.copyright a:hover {
    color: var(--gold);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.is-hidden {
    display: none !important;
}

.text-center {
    text-align: center;
    margin-top: 32px;
}

[id] {
    scroll-margin-top: 88px;
}

@media (max-width: 992px) {
    .page-banner h1 {
        font-size: 36px;
    }

    .section-title h2 {
        font-size: 30px;
    }
}

@media (max-width: 767px) {
    .nav-menu {
        display: none;
        position: absolute;
        left: 0;
        top: 100%;
        width: 100%;
        flex-direction: column;
        gap: 0;
        padding: 10px 20px;
        background: var(--primary);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        max-height: calc(100vh - 72px);
        overflow-y: auto;
    }

    .nav-menu.show {
        display: flex;
    }

    .nav-menu li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .nav-menu a {
        padding: 14px 0;
        font-size: 16px;
    }

    .mobile-menu-btn {
        display: inline-flex;
    }

    .page-banner {
        padding: 70px 0;
    }

    .page-banner h1 {
        font-size: 28px;
    }

    .page-banner p {
        font-size: 15px;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-social a {
        font-size: 20px;
        margin-right: 12px;
    }

    .section-title {
        margin-bottom: 34px;
    }

    .section-title h2 {
        font-size: 26px;
    }

    section {
        padding: 45px 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}