/* Colomba — site styles */

:root {
  --ink: #18212f;
  --ink-2: #3a4556;
  --muted: #5d6879;
  --slate: #6e7b90;
  --periwinkle: #b4c4e2;
  --accent: #34558b;
  --accent-hover: #27426d;
  --accent-soft: #e9eef7;
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-2: #eff2f6;
  --border: #e1e5ec;
  --band: #141c29;
  --band-text: #e8edf5;
  --band-muted: #a6b1c2;

  --radius: 10px;
  --radius-sm: 6px;
  --max: 1160px;
  --gutter: 24px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--ink);
  text-wrap: balance;
}

p {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  left: 8px;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 250, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}

.brand img {
  width: 150px;
  height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  color: var(--ink-2);
  font-size: 15px;
  font-weight: 500;
}

.nav a:hover {
  color: var(--ink);
  text-decoration: none;
}

.nav .btn-primary,
.nav .btn-primary:hover {
  color: #fff;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.lang-switch a,
.lang-switch span {
  color: var(--slate);
  padding: 2px 2px;
}

.lang-switch [aria-current="true"] {
  color: var(--ink);
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  padding: 0;
  cursor: pointer;
  color: var(--ink);
}

.menu-toggle svg {
  margin: 0 auto;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn:hover {
  text-decoration: none;
}

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

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

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: #c9d0db;
}

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

.btn-light {
  background: #fff;
  color: var(--ink);
}

.btn-light:hover {
  background: var(--periwinkle);
  color: var(--ink);
}

.btn-sm {
  padding: 9px 16px;
  font-size: 14px;
}

/* ---------- Sections ---------- */

.section {
  padding: 104px 0;
}

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.section-head {
  max-width: 720px;
  margin-bottom: 56px;
}

.section-head h2 {
  font-size: clamp(30px, 3.6vw, 42px);
  font-weight: 700;
}

.section-head p {
  margin-top: 16px;
  font-size: 18px;
  color: var(--muted);
}

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

.hero {
  padding: 112px 0 88px;
}

.hero h1 {
  font-size: clamp(38px, 5.6vw, 64px);
  font-weight: 750;
  letter-spacing: -0.03em;
  max-width: 900px;
}

.hero-lead {
  margin-top: 24px;
  max-width: 720px;
  font-size: clamp(18px, 1.6vw, 21px);
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.capabilities {
  margin-top: 72px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 36px;
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}

.capabilities li {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.capabilities li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--slate);
}

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

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
}

.section-alt .service {
  background: var(--bg);
}

.icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.icon svg {
  width: 22px;
  height: 22px;
}

.service h3 {
  font-size: 20px;
  font-weight: 650;
}

.service p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 16px;
}

.ticks {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 8px;
}

.ticks li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  color: var(--ink-2);
}

.ticks li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.55em;
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

/* ---------- Case studies ---------- */

.cases {
  display: grid;
  gap: 24px;
}

.case {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 40px;
}

.case-meta {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.case-sector {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}

.case h3 {
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 700;
}

.case-summary {
  color: var(--muted);
  font-size: 16px;
}

.outcome {
  margin-top: 6px;
  padding: 16px 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 15px;
  color: var(--ink-2);
}

.outcome strong {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.case-body {
  display: grid;
  gap: 22px;
  align-content: start;
}

.case-body h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 8px;
}

.case-body p {
  color: var(--ink-2);
  font-size: 16px;
}

.case-body .ticks {
  margin-top: 0;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.tags li {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 12px;
}

.case-gallery {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.case-gallery figure {
  margin: 0;
}

.case-gallery img {
  width: 100%;
  height: auto;
  padding: 12px 8px 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  box-shadow: 0 8px 24px rgba(20, 28, 41, 0.06);
}

.chart-legend {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
}

.chart-legend li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-2);
}

.chart-legend li::before {
  content: "";
  width: 14px;
  height: 3px;
  border-radius: 2px;
  background: var(--c);
}

.case-gallery figcaption {
  margin-top: 8px;
  font-size: 14px;
  color: var(--muted);
}

.cases-compact {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.cases-compact .case {
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 32px;
}


/* ---------- Industries ---------- */

.industries {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.industries li {
  padding: 28px 24px;
  border-right: 1px solid var(--border);
}

.industries li:last-child {
  border-right: 0;
}

.industries strong {
  display: block;
  font-size: 16px;
  font-weight: 650;
  color: var(--ink);
}

.industries span {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- Approach ---------- */

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  counter-reset: step;
}

.step {
  position: relative;
  padding-top: 28px;
  border-top: 2px solid var(--ink);
}

.step-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.step h3 {
  margin-top: 10px;
  font-size: 20px;
  font-weight: 650;
}

.step-duration {
  display: inline-block;
  margin-top: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate);
}

.step p {
  margin-top: 12px;
  font-size: 15px;
  color: var(--muted);
}

.step-result {
  margin-top: 14px;
  font-size: 15px;
  color: var(--ink-2);
  font-weight: 500;
}

/* ---------- Principles ---------- */

.principle h3 {
  font-size: 18px;
  font-weight: 650;
}

.principle p {
  margin-top: 8px;
  font-size: 15px;
  color: var(--muted);
}

.about-lead {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 56px;
  margin-bottom: 56px;
  align-items: start;
}

.about-lead .section-head {
  margin-bottom: 0;
}

.about-lead > p {
  font-size: 18px;
  color: var(--ink-2);
}

.about-lead > p + p {
  margin-top: 16px;
}

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--band);
  color: var(--band-text);
  padding: 88px 0;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-band h2 {
  color: #fff;
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 700;
}

.cta-band p {
  margin-top: 12px;
  color: var(--band-muted);
  font-size: 18px;
  max-width: 620px;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
  flex-shrink: 0;
}

.cta-actions a.mail {
  color: var(--band-muted);
  font-size: 15px;
}

.cta-actions a.mail:hover {
  color: #fff;
}

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

.site-footer {
  background: var(--band);
  color: var(--band-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 56px 0 40px;
  font-size: 15px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
}

.footer-brand img {
  width: 140px;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-brand p {
  margin-top: 16px;
  max-width: 340px;
}

.site-footer h4 {
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

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

.site-footer a {
  color: var(--band-muted);
}

.site-footer a:hover {
  color: #fff;
}

.site-footer address {
  font-style: normal;
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
}

.site-footer .lang-switch a,
.site-footer .lang-switch span {
  color: var(--band-muted);
}

.site-footer .lang-switch [aria-current="true"] {
  color: #fff;
}

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

.contact {
  padding: 88px 0 104px;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 64px;
  align-items: start;
}

.contact h1 {
  font-size: clamp(34px, 4.4vw, 52px);
  font-weight: 750;
  letter-spacing: -0.025em;
}

.contact-lead {
  margin-top: 18px;
  font-size: 18px;
  color: var(--muted);
}

.next-steps {
  list-style: none;
  padding: 0;
  margin: 36px 0 0;
  display: grid;
  gap: 18px;
  counter-reset: next;
}

.next-steps li {
  counter-increment: next;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  font-size: 16px;
  color: var(--ink-2);
}

.next-steps li::before {
  content: counter(next);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.next-steps strong {
  display: block;
  color: var(--ink);
}

.contact-details {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 12px;
  font-size: 16px;
}

.contact-details div {
  display: flex;
  gap: 12px;
  align-items: center;
}

.contact-details svg {
  width: 20px;
  height: 20px;
  color: var(--slate);
  flex-shrink: 0;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.field {
  display: grid;
  gap: 6px;
}

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

.field label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  font: inherit;
  font-size: 16px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid #cfd6e0;
  border-radius: var(--radius-sm);
  padding: 11px 13px;
}

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

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(52, 85, 139, 0.15);
  background: #fff;
}

.form-note {
  grid-column: 1 / -1;
  font-size: 14px;
  color: var(--muted);
}

.submit-btn.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.submit-btn.is-disabled:hover {
  background: var(--ink);
}

.team {
  padding: 72px 0 96px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.team h2 {
  font-size: 24px;
  font-weight: 650;
  text-align: center;
}

.team-intro {
  max-width: 680px;
  margin: 14px auto 0;
  text-align: center;
  font-size: 17px;
  color: var(--muted);
}

.team-skills {
  list-style: none;
  padding: 0;
  margin: 24px 0 8px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.team-skills li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
}

.team-skills svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

.team-photos {
  list-style: none;
  padding: 0;
  margin: 40px 0 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 28px;
}

.team-member {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 132px;
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-2);
}

.team-member img,
.team-more-badge {
  width: 132px;
  height: 132px;
  border-radius: 50%;
}

.team-member img {
  object-fit: cover;
  filter: grayscale(0.15);
}

.team-link {
  display: block;
  border-radius: 50%;
  transition: transform 0.15s ease;
}

.team-link:hover {
  transform: translateY(-2px);
}

.team-more-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  border: 2px dashed var(--periwinkle);
  color: var(--accent);
}

.team-more-badge svg {
  width: 44px;
  height: 44px;
  pointer-events: none;
}


/* ---------- Responsive ---------- */

@media (max-width: 1040px) {
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .industries {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .industries li {
    border-bottom: 1px solid var(--border);
  }

  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px 24px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 8px var(--gutter) 20px;
    box-shadow: 0 16px 32px rgba(20, 28, 41, 0.08);
  }

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

  .nav a {
    padding: 14px 0;
    font-size: 17px;
    border-bottom: 1px solid var(--border);
  }

  .nav .lang-switch {
    padding: 14px 0;
  }

  .nav .lang-switch a,
  .nav .lang-switch span {
    border: 0;
    padding: 2px;
    font-size: 14px;
  }

  .nav .btn {
    margin-top: 12px;
    border-bottom: 0;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
  }

  .about-lead,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cases-compact {
    grid-template-columns: 1fr;
  }

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

  .cta-actions {
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  :root {
    --gutter: 16px;
  }

  body {
    font-size: 16px;
  }

  .section {
    padding: 72px 0;
  }

  .hero {
    padding: 72px 0 56px;
  }

  .capabilities {
    margin-top: 48px;
  }

  .section-head {
    margin-bottom: 36px;
  }

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

  .industries {
    grid-template-columns: 1fr;
  }

  .industries li {
    border-right: 0;
  }

  .industries li:last-child {
    border-bottom: 0;
  }

  .case,
  .cases-compact .case,
  .contact-form {
    padding: 24px;
  }

  .case-gallery {
    grid-template-columns: 1fr;
  }

  .contact-form {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .team-photos {
    gap: 20px;
  }

  .team-member {
    width: 104px;
  }

  .team-member img,
  .team-more-badge {
    width: 104px;
    height: 104px;
  }
}

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

  * {
    transition: none !important;
  }
}