:root {
    --rx-bg: #f5f6f9;
    --rx-card: #ffffff;
    --rx-text: #0b0d12;
    --rx-muted: #374151;
    --rx-subtle: #6b7280;
    --rx-pill-bg: #f1f2f6;
    --rx-border: rgba(15, 23, 42, 0.05);
}

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

html {
    background-color: var(--rx-bg);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--rx-bg);
    color: var(--rx-text);
    font-family: 'Plus Jakarta Sans', 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    overflow-x: hidden;
    min-height: 100vh;
}

.rx-page-shell {
    position: relative;
    max-width: 540px;
    margin: 0 auto;
    background-color: var(--rx-bg);
    overflow: hidden;
}

/* Unified Top Header + Hero Zone */
.rx-top-hero-zone {
    position: relative;
    width: 100%;
    aspect-ratio: 862 / 695;
    min-height: 305px;
    padding: 12px 16px 14px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}

.rx-hero-bg-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    z-index: 0;
    pointer-events: none;
    user-select: none;
}

.rx-cards-container {
    position: relative;
    z-index: 3;
    padding: 0 12px 26px;
    margin-top: -2px;
}

/* Top Navigation Bar */
.rx-topbar {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.rx-brand {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: var(--rx-text);
    white-space: nowrap;
    flex-shrink: 0;
}

.rx-brand:hover {
    color: var(--rx-text);
}

.rx-logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.rx- logo-mark svg {
    display: block;
}

.rx-brand-divider {
    width: 1.5px;
    height: 24px;
    background-color: #6b7280;
    opacity: 0.55;
    margin: 0 11px;
}

.rx-brand-name {
    font-size: clamp(17px, 4.6vw, 22px);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #0a0a0a;
}

.rx-desktop-nav {
    display: none;
}

.rx-menu-btn {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.rx-bars {
    position: relative;
    width: 18px;
    height: 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.36s cubic-bezier(0.4, 0, 0.2, 1);
}

.rx-bars span {
    display: block;
    width: 100%;
    height: 2.2px;
    background-color: #111111;
    border-radius: 2px;
    transform-origin: center;
    transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
}

.rx-menu-btn[aria-expanded="true"] .rx-bars {
    transform: rotate(180deg);
}

.rx-menu-btn[aria-expanded="true"] .rx-bars span:nth-child(1) {
    transform: translateY(4.9px) rotate(45deg);
}

.rx-menu-btn[aria-expanded="true"] .rx-bars span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.rx-menu-btn[aria-expanded="true"] .rx-bars span:nth-child(3) {
    transform: translateY(-4.9px) rotate(-45deg);
}

/* Quick Navigation Drawer */
.rx-nav-drawer {
    position: absolute;
    top: 58px;
    left: 14px;
    right: 14px;
    z-index: 30;
    background: #ffffff;
    border-radius: 16px;
    padding: 8px;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.14);
    border: 1px solid var(--rx-border);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.rx-nav-drawer[hidden] {
    display: none !important;
}

.rx-drawer-link {
    padding: 9px 12px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    color: #111827;
    text-decoration: none;
    background: #f8f9fb;
}

.rx-drawer-link:hover {
    background: #111111;
    color: #ffffff;
}

/* Modal styling */
.rx-modal-content {
    background: #ffffff;
    color: #111827;
    border-radius: 22px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.16);
    padding: 6px;
}

.rx-modal-header {
    border-bottom: 1px solid #f1f2f6;
}

.rx-modal-header .modal-title {
    font-weight: 800;
    color: #0b0d12;
}

.rx-modal-header .modal-desc {
    font-size: 13px;
    color: #6b7280;
}

.rx-code-box {
    background: #0f172a;
    color: #f8fafc;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 12.5px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

.rx-modal-footer {
    border-top: 1px solid #f1f2f6;
}