:root {
    --alfa-orange: #F9A916;
    --alfa-green: #159447;
    --alfa-red: #D7192E;

    --charcoal: #111315;
    --charcoal-soft: #191C1F;

    --ivory: #FAF8F3;
    --white: #FFFFFF;

    --gray-900: #202326;
    --gray-700: #4B5055;
    --gray-500: #6B7075;
    --gray-300: #C9CCCE;
    --gray-150: #E8E7E3;

    --orange-glow: rgba(249, 169, 22, 0.20);
    --glass-dark: rgba(255, 255, 255, 0.06);
    --glass-light: rgba(17, 19, 21, 0.04);

    --header-h: 68px;
    --radius: 18px;
    --radius-sm: 10px;

    --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

    --font-display: "Manrope", system-ui, sans-serif;
    --font-body: "Inter", system-ui, sans-serif;

    --fs-hero: clamp(2.4rem, 7vw, 6rem);
    --fs-h1: clamp(2rem, 4.6vw, 4.2rem);
    --fs-h2: clamp(1.7rem, 3.4vw, 3.2rem);
    --fs-h3: clamp(1.15rem, 1.5vw, 1.45rem);
    --fs-body: 1.05rem;
    --container: 1240px;
    --gutter: clamp(16px, 4vw, 36px);
}

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

html,
body {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: auto;
}

body {
    font-family: var(--font-body);
    font-size: var(--fs-body);
    line-height: 1.7;
    color: var(--gray-900);
    background: var(--ivory);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

img,
video,
svg {
    max-width: 100%;
    display: block;
}

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

button,
input,
select,
textarea {
    font: inherit;
}

h1, h2, h3, h4, p {
    margin: 0;
}

h1, h2, h3 {
    font-family: var(--font-display);
    letter-spacing: -0.035em;
    line-height: 0.98;
    color: var(--charcoal);
}

.sr-only,
.skip-link {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
}

.skip-link:focus {
    position: fixed;
    top: 12px;
    left: 12px;
    width: auto;
    height: auto;
    clip: auto;
    z-index: 1000;
    background: var(--charcoal);
    color: var(--ivory);
    padding: 10px 16px;
    border-radius: 999px;
}

.container {
    width: min(var(--container), calc(100% - var(--gutter) * 2));
    margin-inline: auto;
}

.overline {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--alfa-orange);
    margin-bottom: 16px;
}

.section {
    padding: clamp(48px, 6vw, 96px) 0;
    position: relative;
    scroll-margin-top: calc(var(--header-h) + 12px);
}

.section-tight {
    padding-top: 0;
}

.section-dark {
    background: var(--charcoal);
    color: rgba(250, 248, 243, 0.82);
}

.section-dark h2,
.section-dark h3 {
    color: var(--ivory);
}

.lead {
    font-size: clamp(1.05rem, 1.4vw, 1.2rem);
    color: var(--gray-700);
    max-width: 62ch;
}

.section-dark .lead {
    color: rgba(250, 248, 243, 0.72);
}

.section-head {
    max-width: 760px;
    margin-bottom: clamp(24px, 4vw, 44px);
}

.split-head {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 20px 40px;
    align-items: end;
    margin-bottom: clamp(24px, 4vw, 48px);
}

.btn,
.header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 52px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-family: var(--font-display);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: transform 0.45s var(--ease-smooth), background 0.45s var(--ease-smooth), color 0.45s var(--ease-smooth), border-color 0.45s var(--ease-smooth), box-shadow 0.45s var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--alfa-orange);
    color: var(--charcoal);
    box-shadow: 0 10px 30px var(--orange-glow);
}

.btn-primary::after {
    content: "";
    position: absolute;
    inset: 0 auto 0 -30%;
    width: 28%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.38), transparent);
    transform: skewX(-18deg) translateX(-120%);
}

.btn-primary:hover::after {
    animation: sweep 0.8s var(--ease-smooth);
}

.btn-secondary,
.btn-ghost {
    background: transparent;
    color: var(--ivory);
    border-color: rgba(255,255,255,0.28);
}

.btn-secondary:hover,
.btn-ghost:hover {
    border-color: var(--alfa-orange);
    color: var(--alfa-orange);
}

.btn-line {
    background: transparent;
    color: var(--charcoal);
    border-color: rgba(17,19,21,0.16);
}

.btn-line:hover {
    border-color: var(--alfa-orange);
    color: var(--charcoal);
    background: rgba(249,169,22,0.08);
}

.btn:hover,
.header-cta:hover {
    transform: translateY(-2px);
}

.hero-actions,
.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.text-link {
    font-family: var(--font-display);
    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--alfa-orange);
}

.card {
    background: var(--white);
    border: 1px solid rgba(17,19,21,0.06);
    border-radius: var(--radius);
    padding: 28px;
    transition: transform 0.5s var(--ease-smooth), box-shadow 0.5s var(--ease-smooth), border-color 0.5s var(--ease-smooth);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(17,19,21,0.06);
    border-color: rgba(249,169,22,0.28);
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 80;
    height: var(--header-h);
    transition: background 0.45s var(--ease-smooth), backdrop-filter 0.45s var(--ease-smooth), box-shadow 0.45s var(--ease-smooth);
}

.header-inner {
    width: min(calc(var(--container) + 80px), calc(100% - 32px));
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: max-content;
}

.brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 0;
    background: transparent;
    overflow: visible;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
}

.brand-mark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.brand-copy {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
}

.brand-copy strong {
    font-family: var(--font-display);
    font-size: 1.05rem;
    letter-spacing: 0.18em;
}

.brand-copy small {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gray-500);
}

.desktop-nav {
    display: none;
    margin-left: auto;
    align-items: center;
    gap: 22px;
}

.desktop-nav a {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: inherit;
    position: relative;
    padding: 8px 0;
    opacity: 0.78;
}

.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 1px;
    background: var(--alfa-orange);
    transition: width 0.4s var(--ease-smooth);
}

.desktop-nav a:hover,
.desktop-nav a.is-active {
    opacity: 1;
}

.desktop-nav a:hover::after,
.desktop-nav a.is-active::after {
    width: 100%;
}

.desktop-nav .nav-cta {
    opacity: 1;
    min-height: 40px;
    padding: 0 18px;
    margin-left: 6px;
    border-radius: 999px;
    background: var(--alfa-orange);
    color: var(--charcoal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.35s var(--ease-smooth), box-shadow 0.35s var(--ease-smooth);
    box-shadow: 0 8px 20px var(--orange-glow);
}

.desktop-nav .nav-cta::after {
    display: none;
}

.desktop-nav .nav-cta:hover,
.desktop-nav .nav-cta.is-active {
    transform: translateY(-1px);
    color: var(--charcoal);
}

.header-transparent .desktop-nav .nav-cta,
.header-solid .desktop-nav .nav-cta,
.site-header.is-scrolled .nav-cta {
    color: var(--charcoal);
}

.nav-toggle {
    margin-left: auto;
    width: 44px;
    height: 44px;
    border: 0;
    padding: 0;
    background: transparent;
    color: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nav-toggle-line {
    position: relative;
    display: block;
    width: 20px;
    height: 1.5px;
    background: currentColor;
    border-radius: 2px;
    transition: background 0.2s ease;
}

.nav-toggle-line::before,
.nav-toggle-line::after {
    content: "";
    position: absolute;
    left: 0;
    width: 20px;
    height: 1.5px;
    background: currentColor;
    border-radius: 2px;
    transition: transform 0.3s var(--ease-smooth);
}

.nav-toggle-line::before {
    transform: translateY(-6px);
}

.nav-toggle-line::after {
    transform: translateY(6px);
}

body.nav-open .nav-toggle-line {
    background: transparent;
}

body.nav-open .nav-toggle-line::before {
    transform: rotate(45deg);
}

body.nav-open .nav-toggle-line::after {
    transform: rotate(-45deg);
}

.header-transparent .site-header {
    color: var(--ivory);
}

.header-transparent .brand-copy small,
.header-transparent .desktop-nav a {
    color: inherit;
}

.header-transparent .desktop-nav a.nav-cta,
.header-solid .desktop-nav a.nav-cta,
.site-header.is-scrolled a.nav-cta {
    color: var(--charcoal);
}

.site-header.is-scrolled,
.header-solid .site-header,
.header-transparent .site-header.is-scrolled {
    background: rgba(17, 19, 21, 0.86);
    backdrop-filter: blur(18px);
    color: var(--ivory);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.site-header.is-scrolled .brand-copy small,
.header-solid .brand-copy small {
    color: rgba(250,248,243,0.62);
}

.mobile-nav {
    position: fixed;
    inset: 0;
    z-index: 70;
    background: #0d0f11;
    color: var(--ivory);
    display: none;
    padding: calc(var(--header-h) + 8px) var(--gutter) 28px;
}

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

body.nav-open .mobile-nav {
    display: block;
}

body.nav-open {
    overflow: hidden;
}

.mobile-nav-inner {
    height: calc(100dvh - var(--header-h) - 36px);
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: 20px;
}

.mobile-nav .overline {
    margin-bottom: 0;
}

.mobile-nav nav a {
    display: block;
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    color: rgba(250,248,243,0.9);
}

.mobile-nav nav a.is-active {
    color: var(--alfa-orange);
}

.mobile-nav-foot {
    display: grid;
    gap: 14px;
    padding-top: 8px;
}

.mobile-nav-foot .btn {
    width: 100%;
}

.mobile-nav-mail {
    text-align: center;
    font-size: 0.86rem;
    color: rgba(250,248,243,0.55);
}

.mobile-nav-mail:hover {
    color: var(--alfa-orange);
}

.page-hero {
    min-height: 0;
    display: grid;
    align-items: end;
    padding: calc(var(--header-h) + 36px) 0 36px;
    background:
        radial-gradient(circle at 80% 0%, rgba(249,169,22,0.16), transparent 32%),
        linear-gradient(180deg, #0d0f11 0%, #16191c 100%);
    color: var(--ivory);
    position: relative;
    overflow: hidden;
}

.page-hero h1 {
    color: var(--ivory);
    font-size: var(--fs-h1);
    max-width: 16ch;
}

.page-hero-compact {
    padding: calc(var(--header-h) + 28px) 0 28px;
}

.page-hero .lead {
    color: rgba(250,248,243,0.72);
    margin-top: 20px;
}

.site-footer {
    background: var(--charcoal);
    color: rgba(250,248,243,0.72);
    padding: 48px var(--gutter) 24px;
}

.footer-strand {
    height: 56px;
    margin: -48px calc(var(--gutter) * -1) 28px;
}

.footer-strand path {
    fill: none;
    stroke: var(--alfa-orange);
    stroke-width: 1.5;
    opacity: 0.8;
}

.site-footer .brand-copy strong {
    color: var(--ivory);
}

.site-footer .brand-copy small {
    color: rgba(250,248,243,0.62);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1.1fr 1fr;
    gap: 36px;
    width: min(var(--container), 100%);
    margin: 0 auto 48px;
}

.footer-brand p,
.footer-grid p,
.footer-grid li {
    font-size: 0.95rem;
}

.footer-label {
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--alfa-orange);
    margin-bottom: 16px;
}

.footer-grid ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 8px;
}

.footer-grid a:hover {
    color: var(--alfa-orange);
}

.footer-next {
    color: var(--ivory);
    font-family: var(--font-display);
    font-size: 1.3rem;
    letter-spacing: -0.03em;
}

.footer-bottom {
    width: min(var(--container), 100%);
    margin: 0 auto;
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 0.85rem;
}

.footer-bottom a {
    margin-left: 16px;
}

.page-loader {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: #070808;
    display: grid;
    place-items: center;
    transition: opacity 0.7s var(--ease-smooth), visibility 0.7s var(--ease-smooth);
}

.page-loader.is-done {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-mark {
    position: relative;
    width: 148px;
    height: 148px;
    display: grid;
    place-items: center;
}

.loader-mark img {
    width: 96px;
    height: 96px;
    object-fit: contain;
}

.loader-orbit {
    position: absolute;
    inset: 0;
}

.loader-orbit ellipse {
    fill: none;
    stroke: var(--alfa-orange);
    stroke-width: 1.5;
    stroke-dasharray: 280;
    stroke-dashoffset: 280;
    animation: orbit-draw 1.15s var(--ease-smooth) forwards;
}

.page-transition {
    position: fixed;
    inset: 0;
    z-index: 190;
    background: var(--charcoal);
    transform: scaleX(0);
    transform-origin: left;
    pointer-events: none;
}

.page-transition.is-entering {
    pointer-events: auto;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0;
    z-index: 90;
    background: var(--alfa-orange);
    transform-origin: left;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.form-grid .full {
    grid-column: 1 / -1;
}

label {
    display: grid;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--gray-150);
    background: var(--white);
    border-radius: 14px;
    padding: 14px 16px;
    color: var(--charcoal);
    outline: none;
    transition: border-color 0.3s var(--ease-smooth), box-shadow 0.3s var(--ease-smooth);
}

textarea {
    min-height: 150px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--alfa-orange);
    box-shadow: 0 0 0 4px var(--orange-glow);
}

.form-success {
    display: none;
    padding: 28px;
    border-radius: var(--radius);
    background: rgba(21,148,71,0.08);
    border: 1px solid rgba(21,148,71,0.18);
}

.form-success.is-visible {
    display: block;
}

.empty-state {
    padding: 32px 24px;
    border: 1px dashed rgba(17,19,21,0.14);
    border-radius: var(--radius);
    background: rgba(255,255,255,0.5);
    text-align: center;
}

.tech-grid {
    background-image:
        linear-gradient(rgba(249,169,22,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(249,169,22,0.08) 1px, transparent 1px);
    background-size: 42px 42px;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 28px;
}

.breadcrumb a:hover {
    color: var(--alfa-orange);
}

@keyframes sweep {
    to { transform: skewX(-18deg) translateX(420%); }
}

@keyframes orbit-draw {
    to { stroke-dashoffset: 0; }
}

@media (min-width: 900px) {
    .desktop-nav {
        display: flex;
    }

    .nav-toggle {
        display: none;
    }
}

@media (max-width: 980px) {
    .split-head,
    .footer-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .brand-copy small {
        display: none;
    }
}

@media (max-width: 720px) {
    .section {
        padding: 48px 0;
    }

    .page-hero {
        padding: calc(var(--header-h) + 24px) 0 28px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions .btn,
    .cta-actions .btn {
        width: 100%;
    }

    .hero-actions .text-link {
        text-align: center;
    }

    .header-inner {
        gap: 12px;
    }

    .brand-copy strong {
        font-size: 0.92rem;
        letter-spacing: 0.14em;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }

    .loader-orbit ellipse {
        stroke-dashoffset: 0;
    }
}

:focus-visible {
    outline: 2px solid var(--alfa-orange);
    outline-offset: 3px;
}