/* ==========================================================================
   Fathom Systems — design tokens
   Palette: Zinc-950 base, single desaturated copper accent, no pure black.
   Type: Outfit (display) / Manrope (body).
   ========================================================================== */

:root {
  --color-bg: #0b0b0d;
  --color-bg-alt: #111114;
  --color-surface: #17171b;
  --color-surface-raised: #1c1c21;
  --color-border: rgba(244, 244, 245, 0.09);
  --color-border-strong: rgba(244, 244, 245, 0.16);
  --color-text: #f2f2f3;
  --color-text-muted: #a6a6ad;
  --color-text-dim: #6f6f78;
  --color-accent: #c8783f;
  --color-accent-strong: #e0975f;
  --color-accent-soft: rgba(200, 120, 63, 0.14);
  --color-accent-ink: #1a0f08;

  --font-display: "Outfit", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;

  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 6rem;
  --space-9: 8rem;

  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.75rem;
  --radius-pill: 999px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --container-max: 1360px;
}

/* ------------------------------ Reset ---------------------------------- */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

button,
input,
textarea {
  font-family: inherit;
  color: inherit;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  margin: 0;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------------------------- Layout utils ------------------------------ */

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

.section {
  padding-block: var(--space-9);
  position: relative;
}

.section-head {
  max-width: 40rem;
  margin-bottom: var(--space-6);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-strong);
}

.eyebrow::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: currentColor;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  font-weight: 600;
  margin-top: var(--space-2);
  color: var(--color-text);
}

.section-lede {
  margin-top: var(--space-3);
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 38rem;
  line-height: 1.7;
}

/* -------------------------------- Buttons -------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.9375rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), background-color 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px) scale(0.98);
}

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

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

.btn-secondary {
  background: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
}

/* --------------------------------- Nav ----------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  padding-block: var(--space-4);
  transition: padding 0.35s var(--ease-out), background-color 0.35s var(--ease-out), border-color 0.35s var(--ease-out), backdrop-filter 0.35s var(--ease-out);
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  padding-block: var(--space-2);
  background: rgba(11, 11, 13, 0.78);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--color-border);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.nav-logo svg {
  width: 1.65rem;
  height: 1.65rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.2s var(--ease-out);
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: var(--color-accent-strong);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  width: 2.5rem;
  height: 2.5rem;
  align-items: center;
  justify-content: center;
}

.nav-toggle svg {
  width: 1.25rem;
  height: 1.25rem;
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    inset: 4.25rem 1rem auto 1rem;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    gap: var(--space-3);
    transform: translateY(-8px) scale(0.98);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
  }

  .nav-links.is-open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    padding: 0.5rem 0.25rem;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-actions .btn-secondary {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }
}

/* -------------------------------- Hero ------------------------------------ */

.hero {
  min-height: 100dvh;
  display: grid;
  align-items: center;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-7);
  padding-top: 7rem;
  padding-bottom: var(--space-8);
}

.hero-copy h1 {
  font-size: clamp(2.5rem, 5vw, 4.25rem);
  font-weight: 600;
  line-height: 1.02;
  margin-top: var(--space-3);
}

.hero-copy h1 em {
  font-style: normal;
  color: var(--color-accent-strong);
}

.hero-copy p {
  margin-top: var(--space-4);
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 34rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

.hero-meta {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-7);
}

.hero-meta div strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-variant-numeric: tabular-nums;
}

.hero-meta div span {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1.05;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--color-surface), var(--color-bg-alt));
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.hero-visual svg {
  width: 100%;
  height: 100%;
}

.hero-node {
  transform-origin: center;
  transform-box: fill-box;
  animation: hero-node-pulse 3.2s ease-in-out infinite;
}

.hero-node:nth-of-type(2n) {
  animation-delay: 0.6s;
}

.hero-node:nth-of-type(3n) {
  animation-delay: 1.2s;
}

@keyframes hero-node-pulse {
  0%,
  100% {
    opacity: 0.55;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.18);
  }
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    padding-top: 6rem;
  }

  .hero-visual {
    order: -1;
    aspect-ratio: 4 / 3;
  }

  .hero-meta {
    flex-wrap: wrap;
    row-gap: var(--space-4);
  }
}

/* -------------------------------- Logos ----------------------------------- */

.logos {
  padding-block: var(--space-6);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.logos-label {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  margin-bottom: var(--space-4);
  letter-spacing: 0.04em;
}

.logos-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
  justify-content: space-between;
}

.logos-row li {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-text-dim);
  opacity: 0.7;
  transition: opacity 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.logos-row li:hover {
  opacity: 1;
  color: var(--color-text-muted);
}

/* ------------------------------- Services --------------------------------- */

.bento {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  grid-template-rows: repeat(2, minmax(12rem, auto));
  gap: var(--space-4);
}

.bento-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-2);
  transition: border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.bento-card:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}

.bento-card--feature {
  grid-row: span 2;
  justify-content: space-between;
}

.bento-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  display: flex;
  align-items: center;
  justify-content: center;
}

.bento-icon svg {
  width: 1.4rem;
  height: 1.4rem;
}

.bento-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

.bento-card--feature h3 {
  font-size: 1.5rem;
}

.bento-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.bento-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.bento-tag {
  font-size: 0.75rem;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text-dim);
}

@media (max-width: 980px) {
  .bento {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .bento-card--feature {
    grid-row: auto;
  }
}

/* -------------------------------- Process ---------------------------------- */

.process {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  position: relative;
}

.process-line {
  position: absolute;
  left: 1.35rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
}

.process-line svg {
  height: 100%;
  width: 100%;
  overflow: visible;
}

.process-line path {
  stroke: var(--color-border-strong);
  stroke-width: 2;
}

.process-line path.is-drawn {
  stroke: var(--color-accent);
  transition: stroke-dashoffset 1.4s var(--ease-out);
}

.process-step {
  display: grid;
  grid-template-columns: 2.75rem 1fr;
  gap: var(--space-4);
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.process-step:last-child {
  border-bottom: none;
}

.process-num {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-accent-strong);
  z-index: 1;
}

.process-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
}

.process-body p {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
  max-width: 34rem;
}

@media (min-width: 700px) {
  .process-body {
    display: grid;
    grid-template-columns: 12rem 1fr;
    gap: var(--space-4);
  }

  .process-body h3 {
    padding-top: 0.4rem;
  }
}

/* --------------------------------- Work ------------------------------------ */

.work-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: center;
  padding-block: var(--space-7);
  border-top: 1px solid var(--color-border);
}

.work-row:first-of-type {
  border-top: none;
}

.work-row.is-reversed .work-media {
  order: 2;
}

.work-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 3;
}

.work-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.work-media:hover img {
  transform: scale(1.06);
}

.work-kicker {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.work-body h3 {
  margin-top: var(--space-2);
  font-size: 1.65rem;
  font-weight: 600;
}

.work-body p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.work-stats {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-5);
}

.work-stats div strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.65rem;
  color: var(--color-accent-strong);
  font-variant-numeric: tabular-nums;
}

.work-stats div span {
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

@media (max-width: 860px) {
  .work-row,
  .work-row.is-reversed .work-media {
    grid-template-columns: 1fr;
    order: initial;
  }

  .work-row {
    display: flex;
    flex-direction: column;
  }
}

/* --------------------------------- About ----------------------------------- */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: var(--space-7);
  align-items: start;
}

.about-copy p {
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-top: var(--space-3);
  max-width: 34rem;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.about-stat {
  background: var(--color-surface);
  padding: var(--space-5);
}

.about-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
}

.about-stat span {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

@media (max-width: 860px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

/* ------------------------------ Testimonial --------------------------------- */

.testimonial {
  display: grid;
  grid-template-columns: 0.3fr 1fr;
  gap: var(--space-6);
  align-items: center;
}

.testimonial-mark {
  font-family: var(--font-display);
  font-size: 5rem;
  color: var(--color-accent);
  line-height: 1;
}

.testimonial blockquote {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.testimonial-author img {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
}

.testimonial-author span {
  font-size: 0.825rem;
  color: var(--color-text-dim);
}

@media (max-width: 700px) {
  .testimonial {
    grid-template-columns: 1fr;
  }

  .testimonial-mark {
    display: none;
  }
}

/* -------------------------------- Contact ----------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: var(--space-7);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

form.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.field-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.field-group input,
.field-group textarea {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  color: var(--color-text);
  transition: border-color 0.2s var(--ease-out);
}

.field-group input:focus,
.field-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.field-help {
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

.field-error {
  font-size: 0.75rem;
  color: #e5876a;
  display: none;
}

.field-group.has-error input,
.field-group.has-error textarea {
  border-color: #e5876a;
}

.field-group.has-error .field-error {
  display: block;
}

.field-group.has-error .field-help {
  display: none;
}

.contact-info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-5);
}

.contact-info-list li strong {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.3rem;
}

.contact-info-list li span {
  font-size: 1rem;
}

.form-status {
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  display: none;
}

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

.form-status.is-success {
  background: rgba(120, 190, 130, 0.12);
  color: #8fd39a;
}

@media (max-width: 860px) {
  .contact-grid {
    grid-template-columns: 1fr;
    padding: var(--space-5);
  }

  .field-row {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------- Footer ------------------------------------ */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-6);
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-links {
  display: flex;
  gap: var(--space-4);
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-dim);
}

.footer-links a:hover {
  color: var(--color-text-muted);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid var(--color-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.footer-social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
}

.footer-social svg {
  width: 1rem;
  height: 1rem;
}

.footer-bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-dim);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ------------------------------ Reveal-on-scroll -------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}

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