/* ============================================================
   AbstrakCode — Design System
   Style: Swiss Modernism 2.0 / Minimal & Direct
   ============================================================ */

:root {
  /* Color tokens */
  --color-primary: #18181b;
  --color-on-primary: #ffffff;
  --color-secondary: #3f3f46;
  --color-accent: #2563eb;
  --color-accent-dark: #1d4ed8;
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-fg: #09090b;
  --color-muted: #e8ecf0;
  --color-muted-fg: #52525b;
  --color-border: #e4e4e7;
  --color-destructive: #dc2626;

  /* Type */
  --font-heading: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;

  /* Spacing scale (8px base) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-12: 6rem;

  --container: 68rem;
  --border: 1px solid var(--color-border);
  --transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-fg);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

::selection {
  background: var(--color-accent);
  color: #fff;
}

/* ---------- Typography ---------- */
h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-fg);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  color: var(--color-muted-fg);
}

.text-accent {
  color: var(--color-accent);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section {
  padding-block: var(--space-12);
  border-top: var(--border);
}

.section--flush {
  border-top: 0;
}

.section__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  max-width: 44rem;
}

.eyebrow {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.lede {
  font-size: 1.125rem;
  line-height: 1.7;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.8rem 1.5rem;
  border: 1px solid transparent;
  transition: background-color var(--transition), color var(--transition),
    border-color var(--transition);
}

.btn svg {
  width: 1rem;
  height: 1rem;
  transition: transform var(--transition);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

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

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

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

.btn--ghost {
  border-color: var(--color-border);
  color: var(--color-fg);
  background: transparent;
}

.btn--ghost:hover {
  border-color: var(--color-fg);
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 250, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.logo__img {
  width: 1.75rem;
  height: 1.75rem;
  object-fit: contain;
}

.logo__dot {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-nav__links {
  display: flex;
  gap: var(--space-4);
}

.site-nav__link {
  font-size: 0.9375rem;
  color: var(--color-muted-fg);
  transition: color var(--transition);
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--color-fg);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  color: var(--color-fg);
}

.nav-toggle svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* ---------- Hero ---------- */
.hero {
  padding-block: clamp(4rem, 10vw, 7.5rem);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-6);
  align-items: end;
}

.hero__title {
  max-width: 18ch;
}

.hero__sub {
  margin-top: var(--space-3);
  max-width: 52ch;
  font-size: 1.1875rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.hero__meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  text-align: right;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: var(--color-muted-fg);
  padding-bottom: 0.5rem;
}

.hero__meta strong {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-fg);
  letter-spacing: -0.02em;
}

.hero__meta-item {
  display: flex;
  flex-direction: column;
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: var(--border);
  border-left: var(--border);
}

.service {
  border-right: var(--border);
  border-bottom: var(--border);
  padding: var(--space-4);
  background: var(--color-surface);
  transition: background-color var(--transition);
}

.service:hover {
  background: #f4f4f5;
}

.service__icon {
  width: 1.75rem;
  height: 1.75rem;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.service h3 {
  margin-bottom: var(--space-1);
}

.service p {
  font-size: 0.9375rem;
}

/* ---------- Work / Portfolio ---------- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: var(--border);
  padding: var(--space-4);
  transition: border-color var(--transition), transform var(--transition);
}

.project-card:hover {
  border-color: var(--color-fg);
  transform: translateY(-3px);
}

.project-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.project-card__logo {
  height: 2.5rem;
  width: auto;
  max-width: 8rem;
  object-fit: contain;
}

.project-card__monogram {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-primary);
  color: var(--color-on-primary);
  display: grid;
  place-items: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
}

.project-card__tag {
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted-fg);
  border: var(--border);
  padding: 0.25rem 0.625rem;
}

.project-card h3 {
  font-size: 1.375rem;
  margin-bottom: var(--space-1);
}

.project-card__desc {
  font-size: 0.9375rem;
  flex-grow: 1;
  margin-bottom: var(--space-3);
}

.project-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: var(--space-3);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
}

.project-card__cta svg {
  width: 0.875rem;
  height: 0.875rem;
  transition: transform var(--transition);
}

.project-card:hover .project-card__cta svg {
  transform: translateX(3px);
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: var(--space-8);
  align-items: start;
}

.about-copy p + p {
  margin-top: var(--space-2);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--border);
  border-left: var(--border);
}

.stat {
  border-right: var(--border);
  border-bottom: var(--border);
  padding: var(--space-3);
  background: var(--color-surface);
}

.stat strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.stat span {
  font-size: 0.8125rem;
  color: var(--color-muted-fg);
}

/* ---------- Testimonials ---------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

.testimonial {
  background: var(--color-surface);
  border: var(--border);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.testimonial__quote {
  font-size: 1rem;
  color: var(--color-fg);
  line-height: 1.6;
  flex-grow: 1;
}

.testimonial__quote::before {
  content: "\201C";
  display: block;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  line-height: 0.6;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.testimonial__author {
  border-top: var(--border);
  padding-top: var(--space-3);
}

.testimonial__author strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
}

.testimonial__author span {
  font-size: 0.8125rem;
  color: var(--color-muted-fg);
}

/* ---------- Contact ---------- */
.contact-email__link {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-fg);
  padding-bottom: 0.25rem;
  border-bottom: 3px solid var(--color-accent);
  transition: color var(--transition);
}

.contact-email__link:hover {
  color: var(--color-accent);
}

.contact-email__meta {
  margin-top: var(--space-3);
  font-size: 0.9375rem;
  color: var(--color-muted-fg);
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding-block: var(--space-12);
}

.cta-band h2 {
  color: var(--color-on-primary);
  max-width: 24ch;
}

.cta-band p {
  color: #a1a1aa;
  margin-top: var(--space-2);
  max-width: 48ch;
}

.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.cta-band .btn--ghost {
  border-color: #3f3f46;
  color: #fff;
}

.cta-band .btn--ghost:hover {
  border-color: #fff;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: var(--border);
  padding-block: var(--space-8);
  background: var(--color-surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.footer-brand p {
  margin-top: var(--space-2);
  font-size: 0.9375rem;
  max-width: 34ch;
}

.footer-logo {
  height: 6rem;
  width: auto;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted-fg);
  margin-bottom: var(--space-2);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col a {
  font-size: 0.9375rem;
  color: var(--color-fg);
  transition: color var(--transition);
}

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

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-3);
  border-top: var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  font-size: 0.8125rem;
  color: var(--color-muted-fg);
}

/* ---------- Project detail page ---------- */
.project-hero {
  padding-block: clamp(3.5rem, 8vw, 6rem);
}

.project-hero__top {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.project-hero__logo {
  height: 3.5rem;
  width: auto;
  max-width: 11rem;
  object-fit: contain;
}

.project-hero__monogram {
  width: 3.5rem;
  height: 3.5rem;
  background: var(--color-primary);
  color: var(--color-on-primary);
  display: grid;
  place-items: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.project-hero__tag {
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted-fg);
  border: var(--border);
  background: var(--color-surface);
  padding: 0.25rem 0.625rem;
}

.project-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  max-width: 20ch;
}

.project-hero__desc {
  margin-top: var(--space-3);
  max-width: 58ch;
  font-size: 1.125rem;
}

.project-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: var(--border);
  border-left: var(--border);
  margin-top: var(--space-6);
}

.project-meta__item {
  border-right: var(--border);
  border-bottom: var(--border);
  padding: var(--space-3);
  background: var(--color-surface);
}

.project-meta__item small {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted-fg);
  margin-bottom: 0.25rem;
}

.project-meta__item span {
  font-size: 0.9375rem;
  color: var(--color-fg);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.feature {
  display: flex;
  gap: var(--space-2);
  background: var(--color-surface);
  border: var(--border);
  padding: var(--space-3);
}

.feature__icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.feature h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.feature p {
  font-size: 0.875rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted-fg);
  transition: color var(--transition);
}

.back-link:hover {
  color: var(--color-accent);
}

.back-link svg {
  width: 0.875rem;
  height: 0.875rem;
}

/* ---------- Reveal animation (JS-gated so content is visible without JS) ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Screenshots ---------- */
.project-card__shot {
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  margin: calc(-1 * var(--space-4)) calc(-1 * var(--space-4)) var(--space-4);
  border-bottom: var(--border);
  background: var(--color-muted);
}

.project-card__shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.project-card__shot--phones {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 6px;
  padding: var(--space-2) var(--space-2) 0;
  background: linear-gradient(160deg, #0f172a, #020203);
}

.project-card__shot--phones img {
  width: 31%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
}

.shot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.shot {
  display: block;
}

.shot--wide {
  grid-column: 1 / -1;
}

.browser-frame {
  display: block;
  border: var(--border);
  background: var(--color-surface);
  transition: border-color var(--transition);
}

.shot:hover .browser-frame {
  border-color: var(--color-fg);
}

.browser-frame__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 0.75rem;
  border-bottom: var(--border);
  background: #f4f4f5;
}

.browser-frame__bar i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #d4d4d8;
}

.browser-frame__url {
  margin-left: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  color: var(--color-muted-fg);
}

.browser-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
}

.shot__label {
  display: block;
  margin-top: 0.625rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-fg);
}

.shot__label span {
  display: block;
  margin-top: 0.125rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-muted-fg);
}

.phone-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.phone-shot {
  display: block;
  width: 13.5rem;
}

.phone-frame {
  display: block;
  border: 6px solid #18181b;
  border-radius: 1.75rem;
  overflow: hidden;
  background: #18181b;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.16);
  transition: transform var(--transition);
}

.phone-shot:hover .phone-frame {
  transform: translateY(-4px);
}

.phone-frame img {
  display: block;
  width: 100%;
}

.phone-shot .shot__label {
  text-align: center;
}

@media (max-width: 640px) {
  .shot-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .phone-shot {
    width: 11.5rem;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .services-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-grid,
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .hero__meta {
    flex-direction: row;
    gap: var(--space-4);
    text-align: left;
    padding-bottom: 0;
  }
}

@media (max-width: 640px) {
  .container {
    padding-inline: var(--space-2);
  }

  .section {
    padding-block: var(--space-8);
  }

  .site-nav {
    position: fixed;
    inset: 4rem 0 auto 0;
    background: var(--color-bg);
    border-bottom: var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-3) var(--space-2);
    gap: var(--space-3);
    display: none;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__links {
    flex-direction: column;
    gap: var(--space-2);
  }

  .site-nav__link {
    display: block;
    padding: 0.5rem 0;
    font-size: 1.0625rem;
  }

  .nav-toggle {
    display: grid;
  }

  .services-grid,
  .testimonials-grid,
  .work-grid,
  .feature-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .project-meta {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero__meta {
    flex-wrap: wrap;
  }
}

/* ---------- Motion preference ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}