:root {
    --ink: #14202a;
    --muted: #607082;
    --panel: #ffffff;
    --paper: #f4f7f8;
    --line: #d8e2e7;
    --nav: #0c1b24;
    --brand: #0f766e;
    --brand-dark: #115e59;
    --accent: #d97706;
    --sky: #e5f3f8;
    --radius: 6px;
    --shadow: 0 18px 45px rgba(18, 32, 42, .10);
    --photo: url("https://images.unsplash.com/photo-1540962351504-03099e0a754b?auto=format&fit=crop&w=1600&q=80");
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    overflow-x: hidden;
    background:
        linear-gradient(90deg, rgba(216, 226, 231, .34) 1px, transparent 1px) 0 0 / 48px 48px,
        linear-gradient(180deg, #f7fafb 0, #eef4f6 100%);
}

a {
    color: var(--brand-dark);
    text-decoration-thickness: .08em;
    text-underline-offset: .18em;
}

a:hover {
    color: var(--accent);
}

h1,
h2,
h3 {
    color: var(--ink);
    font-weight: 760;
    letter-spacing: 0;
    line-height: 1.18;
    overflow-wrap: anywhere;
}

h1 {
    max-width: 920px;
    font-size: clamp(2rem, 3.2vw, 2.65rem);
}

h2 {
    font-size: clamp(1.45rem, 2.2vw, 2rem);
}

h3 {
    font-size: 1.08rem;
}

p {
    color: var(--muted);
    overflow-wrap: anywhere;
}

.lead {
    max-width: 760px;
    color: #4d5e70;
    font-size: clamp(1.02rem, 1.5vw, 1.18rem);
}

.fs-4 {
    font-size: clamp(1.02rem, 1.45vw, 1.18rem) !important;
}

.container {
    width: min(100% - 32px, 1160px);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(255, 255, 255, .95);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 10px 26px rgba(20, 32, 42, .08);
    backdrop-filter: blur(14px);
}

.navbar {
    min-height: 74px;
    padding-block: 10px;
}

.navbar-brand {
    display: inline-flex;
    align-items: center;
    padding: 0;
}

.navbar-brand img {
    width: auto;
    max-width: 212px;
    height: 42px;
    filter: drop-shadow(0 5px 10px rgba(20, 32, 42, .12));
}

.navbar-dark .navbar-toggler {
    margin-left: auto;
    border-color: rgba(15, 118, 110, .35);
}

.navbar-dark .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2820,32,42,.92%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-nav {
    gap: 2px;
}

.nav-link {
    border-radius: 999px;
    color: #334155 !important;
    font-size: .88rem;
    font-weight: 720;
    padding: .48rem .66rem !important;
}

.nav-link:hover,
.nav-link.active {
    color: #fff !important;
    background: var(--brand-dark);
}

.btn {
    border-radius: var(--radius);
    font-weight: 760;
}

.btn-lg {
    --bs-btn-padding-y: .72rem;
    --bs-btn-padding-x: 1.05rem;
    --bs-btn-font-size: 1rem;
}

.btn-cta {
    color: #fff;
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 10px 22px rgba(217, 119, 6, .22);
}

.btn-cta:hover {
    color: #fff;
    background: #b45309;
    border-color: #b45309;
}

.btn-main {
    color: #fff;
    background: var(--brand);
    border-color: var(--brand);
}

.btn-main:hover {
    color: #fff;
    background: var(--brand-dark);
    border-color: var(--brand-dark);
}

.btn-outline-light {
    color: #fff;
    border-color: rgba(255, 255, 255, .58);
}

.btn-outline-light:hover {
    color: var(--ink);
    background: #fff;
    border-color: #fff;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    margin-bottom: .75rem;
    color: var(--brand-dark);
    font-size: .74rem;
    font-weight: 820;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: "";
    width: 26px;
    height: 2px;
    background: var(--accent);
}

.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
    color: #fff;
    background:
        linear-gradient(100deg, rgba(12, 27, 36, .95) 0%, rgba(12, 27, 36, .88) 48%, rgba(12, 27, 36, .34) 100%),
        var(--hero) center / cover no-repeat;
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 8px;
    background: linear-gradient(90deg, var(--brand), var(--accent), #2563eb);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero .row {
    align-items: stretch !important;
}

.hero h1 {
    max-width: 820px;
    color: #fff;
    font-size: clamp(2rem, 3vw, 2.55rem);
}

.hero .lead,
.hero p {
    color: rgba(255, 255, 255, .82);
}

.hero .eyebrow {
    color: #a7f3d0;
}

.hero-panel {
    position: relative;
    height: 100%;
    min-height: 330px;
    padding: 24px;
    color: var(--ink);
    background: rgba(255, 255, 255, .94);
    border: 1px solid rgba(255, 255, 255, .74);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero-panel::before {
    content: "Airport Brief";
    display: block;
    margin-bottom: 18px;
    color: var(--muted);
    font-size: .72rem;
    font-weight: 820;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.hero-panel strong {
    display: block;
    color: var(--brand-dark);
    font-size: clamp(1.35rem, 2.2vw, 1.75rem);
    line-height: 1;
}

.hero-panel span {
    color: var(--muted);
}

.hero-panel hr {
    margin: 18px 0;
    border-color: var(--line);
    opacity: 1;
}

.trust-strip {
    color: #fff;
    background: var(--nav);
    font-size: .86rem;
    font-weight: 760;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.trust-strip span {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
}

.trust-strip span::before {
    content: "";
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
}

.section {
    position: relative;
    padding: 72px 0;
}

.section-alt {
    background: var(--paper);
}

.section-alt:first-child,
.section-dark:first-child {
    overflow: hidden;
    min-height: 380px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--line);
}

.section-alt:first-child::after,
.section-dark:first-child::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(42vw, 520px);
    background:
        linear-gradient(90deg, rgba(244, 247, 248, .96), rgba(244, 247, 248, .20)),
        var(--photo) center / cover no-repeat;
    border-left: 1px solid rgba(255, 255, 255, .5);
}

.section-alt:first-child .container,
.section-dark:first-child .container {
    position: relative;
    z-index: 1;
}

.section-alt:first-child h1,
.section-dark:first-child h1,
main.section h1 {
    font-size: clamp(1.85rem, 2.8vw, 2.35rem);
}

.section-dark {
    color: #fff;
    background:
        linear-gradient(100deg, rgba(12, 27, 36, .96), rgba(17, 94, 89, .90)),
        var(--photo) center / cover no-repeat;
}

.section-dark::after {
    opacity: .42;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark .eyebrow {
    color: #fff;
}

.section-dark p {
    color: rgba(255, 255, 255, .80);
}

.layout-ribbon {
    border-top: 0;
}

.layout-ribbon::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--brand), var(--accent), #2563eb);
}

.feature-card,
.post-card,
.stat-card,
.path-card,
.locator-panel,
.faq details,
form.feature-card {
    height: 100%;
    padding: 24px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 12px 30px rgba(18, 32, 42, .06);
}

.feature-card,
.post-card {
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.feature-card:hover,
.post-card:hover {
    transform: translateY(-3px);
    border-color: rgba(15, 118, 110, .42);
    box-shadow: var(--shadow);
}

.feature-card h2,
.post-card h2,
.locator-panel h2 {
    font-size: 1.35rem;
}

.feature-card h3 {
    font-size: 1.04rem;
}

.feature-card ul {
    margin: 0 0 1.2rem;
    padding-left: 1.15rem;
    color: var(--muted);
}

.stat-card {
    display: grid;
    gap: 6px;
    border-left: 5px solid var(--brand);
}

.stat-card strong {
    color: var(--accent);
    font-size: clamp(1.45rem, 2.4vw, 1.9rem);
    line-height: 1;
}

.stat-card span {
    color: var(--muted);
}

.path-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.path-card {
    position: relative;
    overflow: hidden;
    padding-top: 54px;
}

.path-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--brand), var(--accent));
}

.path-card span {
    position: absolute;
    top: 16px;
    left: 18px;
    display: inline-grid;
    width: 28px;
    height: 28px;
    place-items: center;
    color: #fff;
    background: var(--brand-dark);
    border-radius: 50%;
    font-size: .84rem;
    font-weight: 820;
}

.academy-band {
    background:
        linear-gradient(180deg, rgba(229, 243, 248, .84), rgba(244, 247, 248, .96));
    border-block: 1px solid var(--line);
}

.locator-panel {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, .96), rgba(229, 243, 248, .55));
}

.split-band {
    padding: 50px 0;
    color: #fff;
    background:
        linear-gradient(90deg, rgba(12, 27, 36, .95), rgba(15, 118, 110, .92)),
        var(--photo) center / cover no-repeat;
}

.split-band h2,
.split-band .eyebrow {
    color: #fff;
}

.split-band p {
    color: rgba(255, 255, 255, .80);
}

.faq {
    max-width: 920px;
}

.faq details {
    height: auto;
    margin-bottom: 12px;
    padding: 0;
    overflow: hidden;
}

.faq summary {
    cursor: pointer;
    list-style: none;
    padding: 18px 20px;
    color: var(--ink);
    font-weight: 760;
}

.faq summary::-webkit-details-marker {
    display: none;
}

.faq summary::after {
    content: "+";
    float: right;
    color: var(--brand-dark);
    font-size: 1.2rem;
}

.faq details[open] summary::after {
    content: "-";
}

.faq details p {
    margin: 0;
    padding: 0 20px 20px;
}

.article-body {
    max-width: 820px;
    padding: 38px;
    background: rgba(255, 255, 255, .88);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

article.section {
    background:
        linear-gradient(90deg, rgba(244, 247, 248, .96), rgba(244, 247, 248, .82)),
        var(--photo) right top / 48% auto no-repeat;
}

.article-body h1 {
    font-size: clamp(1.9rem, 3vw, 2.35rem);
}

.article-body h2 {
    margin-top: 2rem;
    padding-top: 1.1rem;
    border-top: 1px solid var(--line);
    font-size: 1.32rem;
}

main.section {
    min-height: 44vh;
    background:
        linear-gradient(90deg, rgba(244, 247, 248, .97), rgba(244, 247, 248, .82)),
        var(--photo) right center / 48% auto no-repeat;
}

main.section .container {
    max-width: 760px;
    padding: 36px;
    margin-left: max(16px, calc((100vw - 1160px) / 2));
    background: rgba(255, 255, 255, .9);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-label,
label {
    color: var(--ink);
    font-weight: 700;
}

.form-control,
.form-select {
    min-height: 46px;
    color: var(--ink);
    border-color: var(--line);
    border-radius: var(--radius);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 .2rem rgba(15, 118, 110, .14);
}

.site-footer {
    padding: 56px 0;
    color: rgba(255, 255, 255, .74);
    background: var(--nav);
    border-top: 6px solid var(--brand);
}

.site-footer img {
    width: auto;
    height: 44px;
}

.site-footer p {
    color: rgba(255, 255, 255, .70);
}

.site-footer a {
    display: block;
    width: fit-content;
    margin: .42rem 0;
    color: rgba(255, 255, 255, .86);
    text-decoration: none;
}

.site-footer a:hover {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: .18em;
}

.footer-title {
    color: #fff;
    font-size: .86rem;
    font-weight: 820;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.mobile-cta {
    display: none;
}

@media (max-width: 1199px) {
    .navbar-collapse {
        margin-top: 12px;
        padding: 14px;
        background: #fff;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
    }

    .navbar-nav {
        align-items: stretch !important;
    }

    .nav-link,
    .navbar .btn {
        display: block;
        width: 100%;
        margin: 2px 0 !important;
        text-align: left;
    }
}

@media (max-width: 991px) {
    body {
        padding-bottom: 76px;
    }

    .container {
        width: min(100% - 24px, 720px);
    }

    .section {
        padding: 54px 0;
    }

    .hero {
        min-height: auto;
        padding: 72px 0 64px;
    }

    .hero-panel {
        min-height: 0;
        margin-top: 8px;
    }

    .section-alt:first-child,
    .section-dark:first-child {
        min-height: auto;
        padding: 58px 0;
    }

    .section-alt:first-child::after,
    .section-dark:first-child::after {
        width: 100%;
        opacity: .12;
    }

    .path-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .split-band .btn {
        margin-top: 18px;
    }

    .article-body,
    main.section .container {
        padding: 26px;
    }

    article.section,
    main.section {
        background: var(--paper);
    }

    .mobile-cta {
        position: fixed;
        right: 12px;
        bottom: 12px;
        left: 12px;
        z-index: 1040;
        display: block;
        text-align: center;
    }
}

@media (max-width: 575px) {
    body {
        font-size: 15px;
    }

    .navbar {
        min-height: 66px;
    }

    .navbar-brand img {
        max-width: 176px;
        height: 36px;
    }

    h1,
    .hero h1,
    .section-alt:first-child h1,
    .section-dark:first-child h1,
    .article-body h1,
    main.section h1 {
        font-size: 1.65rem;
    }

    h2 {
        font-size: 1.32rem;
    }

    .path-grid {
        grid-template-columns: 1fr;
    }

    .feature-card,
    .post-card,
    .stat-card,
    .path-card,
    .locator-panel,
    .article-body,
    main.section .container {
        padding: 20px;
    }

    .trust-strip .container {
        gap: 10px !important;
    }
}