/* ===== RESET & ROOT VARIABLES ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --navy-950: #080e1c;
    --navy-900: #0f192d;
    --navy-850: #162444;
    --navy-800: #1e3158;
    --blue-700: #1d4ed8;
    --blue-600: #2563eb;
    --blue-500: #3b82f6;
    --gold-hover: #c59b27;
    --gold-subtle: rgba(212, 175, 55, 0.2);
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--slate-800);
    background: #fbfbfc;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy-850); text-decoration: none; transition: all 0.2s ease; }
a:hover { color: var(--gold-hover); }
ul, ol { list-style: none; }
h1, h2, h3, h4 { line-height: 1.25; letter-spacing: -0.015em; }

/* ===== TYPOGRAPHY ===== */
h1 {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 2.85rem;
    font-weight: 700;
    color: #ffffff;
}

h2 {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 2.1rem;
    font-weight: 700;
    color: var(--navy-900);
    margin-bottom: 0.75rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--navy-900);
    margin-bottom: 0.5rem;
}

p { margin-bottom: 1rem; color: #475569; }

.label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--slate-500);
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 0.75rem;
}

.label::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--blue-500);
    border-radius: 50%;
}

.section-subtitle {
    font-size: 1.05rem;
    color: #64748b;
    max-width: 680px;
    margin-bottom: 2.5rem;
}

/* ===== LAYOUT & CONTAINERS ===== */
.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 1.75rem;
}

.section {
    padding: 4.75rem 0;
    position: relative;
}

.section--alt {
    background: #f4f6fa;
    border-top: 1px solid var(--slate-200);
    border-bottom: 1px solid var(--slate-200);
}

.section--navy {
    background: radial-gradient(circle at 80% 20%, #152547 0%, var(--navy-950) 70%);
    color: #e2e8f0;
}

.section--navy h2,
.section--navy h3 { color: #ffffff; }
.section--navy p { color: #94a3b8; }
.section--navy .label { color: #cbd5e1; }
.section--navy .label::before { background: #38bdf8; }

.grid-2 {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* ===== TOP REGULATORY BAR ===== */
.topbar {
    background: #060b17;
    color: #94a3b8;
    font-size: 0.78rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    z-index: 1010;
}

.topbar__inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0.45rem 1.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.topbar__left {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.topbar__badge {
    background: rgba(255, 255, 255, 0.07);
    color: #e2e8f0;
    padding: 0.15rem 0.6rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.72rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.topbar__right {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.topbar__right a {
    color: #cbd5e1;
    font-size: 0.78rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.topbar__right a:hover {
    color: #ffffff;
}

/* ===== NAVIGATION ===== */
.nav {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11, 19, 36, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s;
}

.nav.scrolled {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    background: rgba(8, 14, 28, 0.99);
}

.nav__inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav__brand {
    display: flex;
    flex-direction: column;
    text-decoration: none;
}

.nav__logo-title {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 1.45rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 0.3px;
    line-height: 1.1;
}

.nav__logo-title span {
    color: #60a5fa;
}

.nav__logo-sub {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #94a3b8;
    font-weight: 600;
    margin-top: 2px;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.nav__links a {
    color: #cbd5e1;
    font-size: 0.88rem;
    font-weight: 500;
    padding: 0.55rem 0.9rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.nav__links a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

.nav__links a.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.12);
    font-weight: 600;
}

.nav__cta-btn {
    margin-left: 0.75rem;
    background: #1e3a8a;
    color: #ffffff !important;
    font-weight: 600 !important;
    font-size: 0.84rem !important;
    padding: 0.55rem 1.15rem !important;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.2s ease;
}

.nav__cta-btn:hover {
    background: #1d4ed8;
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 4px 12px rgba(29, 78, 216, 0.3);
}

.nav__toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #ffffff;
    margin: 5px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.nav__toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== HERO BANNER SECTION ===== */
.hero {
    background: radial-gradient(circle at 80% 25%, #162a52 0%, var(--navy-950) 65%);
    color: #ffffff;
    padding: 5.5rem 0 5rem;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 840px;
    margin: 0 auto;
}

.hero__badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 30px;
    padding: 0.35rem 1.15rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: #cbd5e1;
    margin-bottom: 1.75rem;
    backdrop-filter: blur(6px);
}

.hero__badge-pill span.dot {
    width: 6px;
    height: 6px;
    background: #38bdf8;
    border-radius: 50%;
    display: inline-block;
}

.hero h1 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 0.65rem;
    color: #ffffff;
}

.hero__tagline {
    font-size: 1.35rem;
    color: #e2e8f0;
    font-family: Georgia, 'Times New Roman', serif;
    font-style: italic;
    margin-bottom: 1.5rem;
}

.hero p.lead {
    font-size: 1.1rem;
    color: #cbd5e1;
    line-height: 1.85;
    max-width: 720px;
    margin: 0 auto 2.5rem;
}

.hero__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.2rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.8rem 1.65rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
}

.btn-primary {
    background: #1e3a8a;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 4px 14px rgba(30, 58, 138, 0.4);
}

.btn-primary:hover {
    background: #2563eb;
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.35);
    color: #ffffff !important;
    transform: translateY(-2px);
}

/* ===== FEATURE CARDS ===== */
.card {
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    padding: 2.25rem;
    background: #ffffff;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.card:hover {
    border-color: var(--slate-300);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card__icon-box {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--slate-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1.25rem;
    border: 1px solid var(--slate-200);
    color: var(--navy-900);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.65rem;
}

.card p {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.card__link {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--navy-850);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.card__link:hover {
    color: var(--gold-hover);
    gap: 0.55rem;
}

/* ===== BANNER STRIPS & SHOWCASE ===== */
.feature-banner {
    background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-850) 100%);
    border-radius: var(--radius-lg);
    padding: 3.5rem;
    color: #ffffff;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
    margin: 4rem 0 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-banner h3 {
    color: #ffffff;
    font-size: 1.85rem;
    margin-bottom: 1rem;
}

.feature-banner p {
    color: #94a3b8;
    max-width: 600px;
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.feature-banner__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-banner__item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.feature-banner__item h4 {
    color: #ffffff;
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.feature-banner__item p {
    font-size: 0.88rem;
    color: #cbd5e1;
    margin-bottom: 0;
}

/* ===== PAGE HEADER BANNER ===== */
.page-header {
    padding: 4.5rem 0 3.75rem;
    background: radial-gradient(circle at 80% 20%, #16284e 0%, var(--navy-950) 70%);
    color: #ffffff;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

.page-header h1 {
    font-size: 2.65rem;
    margin-bottom: 0.75rem;
}

.page-header p {
    color: #94a3b8;
    font-size: 1.08rem;
    max-width: 680px;
    line-height: 1.7;
    margin-bottom: 0;
}

.breadcrumb {
    margin-bottom: 1.25rem;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb a {
    color: #94a3b8;
    font-weight: 500;
}

.breadcrumb a:hover {
    color: #ffffff;
    text-decoration: underline;
}

.breadcrumb span {
    color: #64748b;
}

/* ===== DOWNLOAD ITEMS ===== */
.download-list {
    display: grid;
    gap: 0.75rem;
}

.download-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.75rem;
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.download-item:hover {
    border-color: var(--blue-500);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.download-item__info {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.download-item__icon {
    width: 44px;
    height: 44px;
    background: #f8fafc;
    border: 1px solid var(--slate-200);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--navy-900);
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.download-item__name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--navy-900);
    margin-bottom: 0.2rem;
}

.download-item__action {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--navy-900);
    background: var(--slate-100);
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    border: 1px solid var(--slate-200);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.2s ease;
}

.download-item:hover .download-item__action {
    background: #1e3a8a;
    color: #ffffff;
    border-color: #1e3a8a;
}

/* ===== LINK GRID ===== */
.link-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.link-grid__item {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.link-grid__item:hover {
    border-color: var(--blue-500);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.link-grid__item a {
    font-weight: 600;
    font-size: 0.98rem;
    color: var(--navy-900);
}

.link-grid__item a:hover {
    color: var(--blue-700);
}

.link-grid__dot,
.dot {
    width: 8px;
    height: 8px;
    background: var(--blue-500);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ===== CONTACT CARDS ===== */
.contact-card {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 2.75rem;
    box-shadow: var(--shadow-sm);
}

.contact-card__label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--slate-500);
    margin-bottom: 0.35rem;
}

.contact-card__value {
    font-size: 1.05rem;
    color: var(--slate-800);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* ===== NOTICE BOX ===== */
.notice {
    border-left: 4px solid #1e3a8a;
    background: #ffffff;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 1.75rem 2rem;
    box-shadow: var(--shadow-sm);
    border-top: 1px solid var(--slate-200);
    border-right: 1px solid var(--slate-200);
    border-bottom: 1px solid var(--slate-200);
}

.notice__title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--navy-900);
    margin-bottom: 0.75rem;
}

/* ===== CONTENT BLOCKS ===== */
.content-block {
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--slate-200);
}

.content-block:last-child {
    border-bottom: none;
}

.content-block h3 {
    font-size: 1.45rem;
    margin-bottom: 1rem;
}

.content-block ul {
    padding-left: 1.25rem;
    margin-bottom: 1.25rem;
}

.content-block ul li {
    list-style: disc;
    margin-bottom: 0.4rem;
    color: #475569;
}

.content-block ol {
    padding-left: 1.25rem;
    margin-bottom: 1.25rem;
}

.content-block ol li {
    list-style: decimal;
    margin-bottom: 0.6rem;
    color: #475569;
}

/* ===== MODAL ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(8, 14, 28, 0.75);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: #ffffff;
    border-radius: var(--radius-lg);
    max-width: 580px;
    width: 100%;
    padding: 2.5rem;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
    border: 1px solid var(--slate-200);
}

.modal__close {
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    background: none;
    border: none;
    font-size: 1.6rem;
    color: #94a3b8;
    cursor: pointer;
    line-height: 1;
}

.modal__close:hover { color: #0f192d; }

.modal h3 {
    color: var(--navy-900);
    font-size: 1.25rem;
    margin-bottom: 1.25rem;
}

.modal li {
    padding: 0.5rem 0 0.5rem 1rem;
    border-left: 2px solid #1e3a8a;
    margin-bottom: 0.5rem;
    font-size: 0.92rem;
    color: #475569;
}

.modal__source {
    font-size: 0.78rem;
    color: #64748b;
    border-top: 1px solid var(--slate-200);
    padding-top: 1rem;
    margin-top: 1rem;
}

.modal__btn {
    margin-top: 1.25rem;
    padding: 0.75rem 2rem;
    background: var(--navy-900);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    transition: background 0.2s;
}

.modal__btn:hover { background: #1e3a8a; }

/* ===== FOOTER ===== */
.footer {
    background: #060b17;
    color: #94a3b8;
    padding: 4.5rem 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3.5rem;
    padding-bottom: 3.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__heading {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #cbd5e1;
    margin-bottom: 1.25rem;
}

.footer__about {
    font-size: 0.92rem;
    color: #94a3b8;
    line-height: 1.8;
}

.footer__links a {
    display: block;
    color: #94a3b8;
    font-size: 0.9rem;
    padding: 0.35rem 0;
}

.footer__links a:hover {
    color: #ffffff;
    transform: translateX(2px);
}

.footer__contact-item {
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    line-height: 1.6;
    color: #94a3b8;
}

.footer__contact-item a { color: #cbd5e1; }
.footer__contact-item a:hover { color: var(--gold-hover); }

.footer__bottom {
    padding: 1.75rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    color: #64748b;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer__bottom a {
    color: #94a3b8;
    margin-left: 1.5rem;
}

.footer__bottom a:hover { color: #ffffff; }

/* ===== FADE IN ON SCROLL ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 980px) {
    .grid-2 { grid-template-columns: 1fr; gap: 3rem; }
    .grid-3 { grid-template-columns: 1fr; gap: 1.5rem; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .link-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-banner__grid { grid-template-columns: 1fr; gap: 1.25rem; }
    .footer__grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
    h1 { font-size: 2.3rem; }
    .hero h1 { font-size: 2.4rem; }
}

@media (max-width: 720px) {
    .topbar { display: none; }
    .nav__links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #080e1c;
        flex-direction: column;
        padding: 1.5rem 1.75rem;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        display: none;
    }
    .nav__links.open { display: flex; }
    .nav__links a { width: 100%; padding: 0.75rem 0.5rem; font-size: 1rem; }
    .nav__cta-btn { margin-left: 0; margin-top: 0.5rem; width: 100%; text-align: center; }
    .nav__toggle { display: block; }
    .hero { padding: 4rem 0; }
    .hero h1 { font-size: 2rem; }
    .grid-4 { grid-template-columns: 1fr; }
    .link-grid { grid-template-columns: 1fr; }
    .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
    .download-item { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .download-item__action { width: 100%; justify-content: center; }
}