/* ============================================
   RF Essentials - Global Design System
   Dark, industrial, high-tech aesthetic
   Last updated: 2026-04-11
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- CSS Custom Properties --- */
:root {
    /* Colors */
    --color-primary: #fc8200;
    --color-primary-hover: #fca600;
    --color-primary-rgb: 252, 130, 0;
    --color-dark: #191919;
    --color-dark-elevated: #222222;
    --color-dark-subtle: #2a2a2a;
    --color-surface: #1e1e1e;
    --color-light: #f5f5f5;
    --color-text: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #666666;

    /* Typography */
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --section-padding: 120px;
    --section-padding-mobile: 60px;
    --container-width: 1400px;
    --container-padding: 40px;
    --card-gap: 24px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.6s ease;

    /* Nav */
    --nav-height: 80px;
    --nav-height-mobile: 64px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-dark);
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(42px, 6vw, 88px);
    font-weight: 800;
}

h2 {
    font-size: clamp(32px, 4vw, 56px);
    font-weight: 700;
}

h3 {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 700;
}

h4 {
    font-size: clamp(18px, 2vw, 24px);
    font-weight: 600;
}

p {
    color: var(--color-text-secondary);
    max-width: 680px;
}

.text-mono {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.05em;
}

/* --- Layout --- */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--section-padding) 0;
}

.section--dark {
    background-color: var(--color-dark);
}

.section--elevated {
    background-color: var(--color-dark-elevated);
}

.section--surface {
    background-color: var(--color-surface);
}

.section--light {
    background-color: var(--color-light);
    color: var(--color-dark);
}

.section--light p {
    color: var(--color-text-muted);
}

/* --- Eyebrow Label --- */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-primary);
    margin-bottom: 16px;
    display: block;
}

/* --- Orange Accent Bar --- */
.accent-bar {
    width: 48px;
    height: 2px;
    background-color: var(--color-primary);
    margin-bottom: 24px;
}

/* --- Top Utility Bar --- */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 36px;
    background-color: rgba(25, 25, 25, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-dark-subtle);
    z-index: 1001;
    display: flex;
    align-items: center;
}

.topbar__inner {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.topbar__search {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-muted);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: color var(--transition-base);
}

.topbar__search:hover {
    color: var(--color-primary);
}

.topbar__search svg {
    width: 13px;
    height: 13px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

.topbar__right {
    position: absolute;
    right: var(--container-padding);
    display: flex;
    align-items: center;
    gap: 24px;
}

.topbar__link {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

.topbar__link:hover {
    color: var(--color-primary);
}

.topbar__kbd {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-text-muted);
    background-color: var(--color-dark-subtle);
    padding: 2px 6px;
    border-radius: 3px;
    margin-left: 6px;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 36px;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 1000;
    display: flex;
    align-items: center;
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
    background-color: transparent;
}

.nav.scrolled {
    background-color: rgba(25, 25, 25, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.nav__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav__logo img {
    height: 32px;
    width: auto;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav__link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
    position: relative;
    white-space: nowrap;
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-text);
}

.nav__link--dropdown {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.nav__link--dropdown::after {
    content: '';
    width: 8px;
    height: 8px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    margin-top: -3px;
    transition: transform var(--transition-base);
}

.nav__dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-dark-elevated);
    border: 1px solid var(--color-dark-subtle);
    border-top: 16px solid transparent;
    background-clip: padding-box;
    padding: 12px 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.nav__link--dropdown:hover .nav__dropdown {
    opacity: 1;
    visibility: visible;
}

.nav__dropdown a {
    display: block;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-secondary);
    transition: color var(--transition-base), background-color var(--transition-base);
}

.nav__dropdown a:hover {
    color: var(--color-text);
    background-color: rgba(252, 130, 0, 0.08);
}

/* Mega Menu */
.nav__mega {
    position: fixed;
    top: calc(36px + var(--nav-height) - 50px);
    left: 0;
    width: 100%;
    background-color: rgba(30, 30, 30, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-dark-subtle);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    z-index: -1;
    padding-top: 50px;
    padding-bottom: 0px;
    padding-left: 0;
    padding-right: 0;
}

.nav__link--dropdown:hover .nav__mega {
    opacity: 1;
    visibility: visible;
}

.nav__mega-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 32px var(--container-padding);
    display: grid;
    grid-template-columns: 280px 1fr 1fr;
    gap: 48px 60px;
}

/* Column 1: Featured image card */
.mega-feature {
    background: var(--color-dark);
    border: 1px solid var(--color-dark-subtle);
    border-radius: 6px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s;
}

.mega-feature:hover {
    border-color: var(--color-primary);
}

.mega-feature__img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    display: block;
}

.mega-feature__body {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.mega-feature__tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: 6px;
}

.mega-feature__title {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 6px;
    line-height: 1.3;
}

.mega-feature__desc {
    font-size: 12px;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin-bottom: 14px;
    flex: 1;
}

.mega-feature__btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    transition: gap 0.2s;
}

.mega-feature__btn:hover {
    gap: 10px;
}

.mega-feature__btn::after {
    content: '\2192';
}

/* Columns 2 & 3: Link lists */
.mega-col__title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-dark-subtle);
}

.mega-link {
    display: block;
    padding: 8px 0;
    text-decoration: none;
    transition: transform 0.15s;
}

.mega-link:hover {
    transform: translateX(4px);
}

.mega-link__title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 2px;
    transition: color 0.2s;
}

.mega-link:hover .mega-link__title {
    color: var(--color-primary);
}

.mega-link__desc {
    font-size: 11px;
    color: var(--color-text-muted);
    line-height: 1.4;
}

.nav__cta {
    margin-left: 12px;
}

/* Hamburger */
.nav__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 32px;
    height: 32px;
    cursor: pointer;
    z-index: 1001;
}

.nav__hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav__hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.nav__hamburger.active span:nth-child(2) {
    opacity: 0;
}

.nav__hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Nav Overlay */
.nav__mobile {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-dark);
    z-index: 999;
    padding: 120px var(--container-padding) 40px;
    flex-direction: column;
    gap: 0;
    overflow-y: auto;
}

.nav__mobile.active {
    display: flex;
}

.nav__mobile a {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-secondary);
    padding: 16px 0;
    border-bottom: 1px solid var(--color-dark-subtle);
    transition: color var(--transition-base);
}

.nav__mobile a:hover {
    color: var(--color-primary);
}

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

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 32px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border-radius: 0;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-dark);
}

.btn--primary:hover {
    background-color: var(--color-primary-hover);
}

.btn--outline {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-text-secondary);
}

.btn--outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn--ghost {
    background-color: transparent;
    color: var(--color-primary);
    padding: 0;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
}

.btn--ghost::after {
    content: '\2192';
    transition: transform var(--transition-base);
}

.btn--ghost:hover::after {
    transform: translateX(4px);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: calc(var(--nav-height) + 36px);
    background-color: var(--color-dark);
    overflow: hidden;
}

/* Scroll indicator chevron - all hero sections */
.hero::after {
    content: '';
    position: absolute;
    bottom: 36px;
    left: 50%;
    width: 24px;
    height: 24px;
    border-right: 2.5px solid var(--color-primary);
    border-bottom: 2.5px solid var(--color-primary);
    transform: translateX(-50%) rotate(45deg);
    opacity: 1;
    z-index: 5;
    animation: scrollBounce 1.8s ease-in-out infinite;
    pointer-events: none;
    transition: opacity 0.4s;
    filter: drop-shadow(0 0 6px rgba(252, 130, 0, 0.6)) drop-shadow(0 0 14px rgba(252, 130, 0, 0.25));
}

.hero.scrolled-past::after {
    opacity: 0;
}

@keyframes scrollBounce {
    0%, 100% { bottom: 36px; opacity: 1; }
    50% { bottom: 22px; opacity: 0.5; }
}

.hero--medium {
    min-height: 70vh;
}

.hero--short {
    min-height: 50vh;
}

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    z-index: 0;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(25, 25, 25, 0.3) 0%, rgba(25, 25, 25, 0.7) 60%, rgba(25, 25, 25, 1) 100%);
    z-index: 1;
}

.hero__content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero__content h1 {
    margin-bottom: 24px;
}

.hero__content p {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 560px;
}

/* --- Grid --- */
.grid {
    display: grid;
    gap: var(--card-gap);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--5 { grid-template-columns: repeat(5, 1fr); }

/* --- Cards --- */
.card {
    background-color: var(--color-dark-elevated);
    border: 1px solid var(--color-dark-subtle);
    overflow: hidden;
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
}

.card__image {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background-color: var(--color-surface);
}

.card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card__image img {
    transform: scale(1.05);
}

.card__body {
    padding: 24px;
}

.card__title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}

.card__text {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-primary);
    transition: gap var(--transition-base);
}

.card__link::after {
    content: '\2192';
}

.card:hover .card__link {
    gap: 10px;
}

/* --- Feature Tiles (GHz / THz style) --- */
.tile {
    padding: 48px;
    background-color: var(--color-dark-elevated);
    border: 1px solid var(--color-dark-subtle);
    transition: border-color var(--transition-base);
}

.tile:hover {
    border-color: var(--color-primary);
}

.tile__icon {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
    color: var(--color-primary);
}

.tile__title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.tile__text {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* --- Stats / Benefits Strip --- */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0;
    border-top: 1px solid var(--color-dark-subtle);
    border-bottom: 1px solid var(--color-dark-subtle);
}

.stat {
    padding: 40px 32px;
    text-align: center;
    border-right: 1px solid var(--color-dark-subtle);
}

.stat:last-child {
    border-right: none;
}

.stat__value {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.stat__label {
    font-size: 14px;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* --- CTA Bar --- */
.cta-bar {
    padding: 80px 0;
    text-align: center;
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-dark-subtle);
    border-bottom: 1px solid var(--color-dark-subtle);
}

.cta-bar h2 {
    margin-bottom: 16px;
}

.cta-bar p {
    margin: 0 auto 32px;
    font-size: 18px;
}

/* --- Logo Strip (Trusted By) --- */
.logo-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    padding: 60px 0;
}

.logo-strip img {
    height: 36px;
    width: auto;
    opacity: 0.6;
    filter: invert(1) grayscale(100%) brightness(2);
    mix-blend-mode: screen;
    transition: opacity var(--transition-base), filter var(--transition-base);
}

.logo-strip img:hover {
    opacity: 1;
    filter: invert(1) grayscale(0%) brightness(1.5);
}

/* --- Footer --- */
.footer {
    background-color: var(--color-dark);
    border-top: 1px solid var(--color-dark-subtle);
    padding: 80px 0 40px;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer__brand p {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-top: 16px;
    line-height: 1.7;
}

.footer__brand img {
    height: 28px;
    margin-bottom: 8px;
}

.footer__col-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text);
    margin-bottom: 20px;
}

.footer__links a {
    display: block;
    font-size: 14px;
    color: var(--color-text-muted);
    padding: 6px 0;
    transition: color var(--transition-base);
}

.footer__links a:hover {
    color: var(--color-primary);
}

.footer__contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

.footer__contact-item a {
    color: var(--color-text-secondary);
}

.footer__contact-item a:hover {
    color: var(--color-primary);
}

.footer__bottom {
    border-top: 1px solid var(--color-dark-subtle);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer__copyright {
    font-size: 13px;
    color: var(--color-text-muted);
}

.footer__legal {
    display: flex;
    gap: 24px;
}

.footer__legal a {
    font-size: 13px;
    color: var(--color-text-muted);
}

.footer__legal a:hover {
    color: var(--color-text-secondary);
}

/* --- Form Elements --- */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 14px 16px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-dark-subtle);
    color: var(--color-text);
    font-size: 15px;
    transition: border-color var(--transition-base);
    border-radius: 0;
    -webkit-appearance: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
}

/* --- Scroll Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-white { color: var(--color-text); }
.text-secondary { color: var(--color-text-secondary); }
.text-upper { text-transform: uppercase; letter-spacing: 2px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.mb-64 { margin-bottom: 64px; }
.mt-24 { margin-top: 24px; }
.mt-48 { margin-top: 48px; }
.pt-0 { padding-top: 0; }

/* --- View Toggle --- */
.view-toggle {
    display: flex;
    gap: 2px;
    background-color: var(--color-dark-elevated);
    border: 1px solid var(--color-dark-subtle);
    padding: 4px;
}

.view-toggle__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 36px;
    color: var(--color-text-muted);
    transition: all var(--transition-base);
    cursor: pointer;
    background: none;
    border: none;
}

.view-toggle__btn:hover {
    color: var(--color-text-secondary);
}

.view-toggle__btn.active {
    background-color: var(--color-primary);
    color: var(--color-dark);
}

/* --- Search Overlay --- */
.nav__search-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color var(--transition-base);
    white-space: nowrap;
    background: none;
    border: none;
    padding: 0;
    font-family: inherit;
}

.nav__search-trigger:hover {
    color: var(--color-text);
}

.nav__search-trigger svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 80px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

.search-overlay__inner {
    width: 100%;
    max-width: 900px;
    padding: 0 var(--container-padding);
}

.search-overlay__logo {
    display: block;
    margin-bottom: 48px;
}

.search-overlay__logo img {
    height: 32px;
    width: auto;
}

.search-overlay__close {
    position: absolute;
    top: 32px;
    right: 40px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--color-dark-subtle);
    cursor: pointer;
    color: var(--color-text-secondary);
    font-size: 20px;
    transition: all var(--transition-base);
}

.search-overlay__close:hover {
    border-color: var(--color-primary);
    color: var(--color-text);
}

.search-overlay__label {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-primary);
    margin-bottom: 16px;
    display: block;
}

.search-overlay__input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--color-dark-subtle);
    color: var(--color-text);
    font-family: var(--font-heading);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    padding: 12px 0;
    outline: none;
    transition: border-color var(--transition-base);
}

.search-overlay__input::placeholder {
    color: var(--color-text-muted);
}

.search-overlay__input:focus {
    border-color: var(--color-primary);
}

.search-overlay__hint {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-text-muted);
    margin-top: 12px;
}

.search-overlay__hint kbd {
    display: inline-block;
    padding: 2px 8px;
    background: var(--color-dark-elevated);
    border: 1px solid var(--color-dark-subtle);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-secondary);
    margin: 0 2px;
}

.search-overlay__results {
    margin-top: 32px;
    max-height: 50vh;
    overflow-y: auto;
}

.search-overlay__results::-webkit-scrollbar {
    width: 4px;
}

.search-overlay__results::-webkit-scrollbar-track {
    background: transparent;
}

.search-overlay__results::-webkit-scrollbar-thumb {
    background: var(--color-dark-subtle);
}

.search-result {
    display: block;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-dark-subtle);
    text-decoration: none;
    transition: all var(--transition-base);
}

.search-result:hover {
    padding-left: 12px;
}

.search-result__title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
}

.search-result:hover .search-result__title {
    color: var(--color-primary);
}

.search-result__path {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-text-muted);
}

.search-overlay__empty {
    text-align: center;
    padding: 48px 0;
    color: var(--color-text-muted);
    font-size: 15px;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
        --container-padding: 32px;
    }

    .grid--5 { grid-template-columns: repeat(3, 1fr); }
    .grid--4 { grid-template-columns: repeat(2, 1fr); }
    .grid--3 { grid-template-columns: repeat(2, 1fr); }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
        --container-padding: 20px;
        --nav-height: 64px;
    }

    .nav__links {
        display: none;
    }

    .nav__cta-desktop {
        display: none;
    }

    .nav__hamburger {
        display: flex;
    }

    .grid--2,
    .grid--3,
    .grid--4 {
        grid-template-columns: 1fr;
    }

    .grid--5 {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero {
        min-height: 80vh;
    }

    .hero::after {
        display: none;
    }

    .hero--medium {
        min-height: 60vh;
    }

    .hero--short {
        min-height: 50vh;
    }

    .hero__content p {
        font-size: 16px;
    }

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

    .stat {
        border-right: none;
        border-bottom: 1px solid var(--color-dark-subtle);
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

    .tile {
        padding: 32px;
    }

    .logo-strip {
        gap: 32px;
    }

    .logo-strip img {
        height: 28px;
    }

    .btn {
        padding: 14px 24px;
        font-size: 12px;
    }
}