/* Marble Kite s.r.o. — brand stylesheet
   Warm paper background, near-black ink, ultramarine accent, muted lime secondary. */

:root {
  --paper: #f4efe4;
  --paper-2: #ece4d3;
  --ink: #14130f;
  --ink-soft: #403d34;
  --ultramarine: #1c2fd6;
  --ultramarine-deep: #12209e;
  --lime: #8a9a1f;
  --line: rgba(20, 19, 15, 0.16);
  --line-strong: rgba(20, 19, 15, 0.32);
  --max-w: 1280px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 2px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: "Helvetica Neue", Arial, "Segoe UI", sans-serif;
  --mono: "SF Mono", "Roboto Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

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

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  z-index: 200;
  font-family: var(--sans);
  font-size: 0.9rem;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--ultramarine);
  outline-offset: 2px;
}

h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ultramarine);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.eyebrow::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  background: var(--lime);
}

.section-number {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.wordmark {
  font-family: var(--sans);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.wordmark span.dot {
  color: var(--ultramarine);
}

.primary-nav {
  display: none;
}

.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
  font-family: var(--sans);
  font-size: 0.92rem;
}

.primary-nav a {
  text-decoration: none;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  border-bottom-color: var(--ultramarine);
}

.header-cta {
  display: none;
}

.btn {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

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

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

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

.btn-small {
  padding: 0.6rem 1rem;
  font-size: 0.82rem;
}

/* Mobile nav toggle */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: 1px solid var(--ink);
  padding: 0.5rem 0.75rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--ink);
}

.nav-toggle .bars {
  display: block;
  width: 18px;
  height: 12px;
  position: relative;
}

.nav-toggle .bars::before,
.nav-toggle .bars::after,
.nav-toggle .bars span {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--ink);
}

.nav-toggle .bars::before {
  top: 0;
}

.nav-toggle .bars span {
  top: 5px;
}

.nav-toggle .bars::after {
  top: 10px;
}

.mobile-nav {
  position: fixed;
  inset: 76px 0 0 0;
  background: var(--paper);
  z-index: 90;
  padding: 2rem var(--gutter);
  display: none;
  overflow-y: auto;
}

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

.mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--sans);
}

.mobile-nav li {
  border-bottom: 1px solid var(--line);
}

.mobile-nav a {
  display: block;
  padding: 1.1rem 0;
  text-decoration: none;
  font-size: 1.3rem;
}

.mobile-nav .btn {
  margin-top: 1.5rem;
  width: 100%;
  justify-content: center;
}

@media (min-width: 900px) {
  .primary-nav {
    display: block;
  }
  .header-cta {
    display: inline-flex;
  }
  .nav-toggle {
    display: none;
  }
}

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  position: relative;
}

@media (min-width: 980px) {
  .hero-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

.hero-heading {
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  max-width: 15ch;
}

.hero-heading .accent {
  color: var(--ultramarine);
}

.hero-lede {
  margin-top: 1.75rem;
  max-width: 46ch;
  font-size: 1.15rem;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.25rem;
}

.kite-motif {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  justify-self: end;
}

.kite-motif svg {
  width: 100%;
  height: 100%;
}

.hero-meta {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 0 1.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

/* fade-up animation on load/scroll */
.fade-up {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============ Section shell ============ */
section {
  padding: clamp(3rem, 7vw, 5.5rem) 0;
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2.75rem;
  max-width: 62ch;
}

.section-head h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.6rem);
}

/* ============ Services (numbered editorial list) ============ */
.services-list {
  border-top: 1px solid var(--line);
}

.service-row {
  border-bottom: 1px solid var(--line);
  padding: 1.75rem 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  cursor: pointer;
}

.service-row .num {
  font-family: var(--mono);
  font-size: 1.1rem;
  color: var(--ultramarine);
  padding-top: 0.2rem;
}

.service-row .service-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.service-row h3 {
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
}

.service-toggle-icon {
  font-family: var(--mono);
  font-size: 1.2rem;
  color: var(--ink-soft);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.service-row[aria-expanded="true"] .service-toggle-icon {
  transform: rotate(45deg);
}

.service-body {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  transition: grid-template-rows 0.3s ease;
}

.service-body-inner {
  overflow: hidden;
  min-height: 0;
}

.service-row[aria-expanded="true"] + .service-body {
  grid-template-rows: 1fr;
}

.service-body p {
  max-width: 58ch;
  color: var(--ink-soft);
  margin: 1rem 0 0;
  padding-left: calc(1.1rem + 1.25rem);
}

@media (prefers-reduced-motion: reduce) {
  .service-body {
    transition: none;
  }
}

/* ============ Process diagram ============ */
.process-diagram {
  display: grid;
  gap: 0;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
}

.process-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.process-step .num {
  font-family: var(--mono);
  font-size: 1.4rem;
  color: var(--ink-soft);
}

.process-step h3 {
  font-size: 1.25rem;
  margin-bottom: 0.4rem;
}

.process-step p {
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0;
}

.process-note {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--lime);
  background: var(--paper-2);
  max-width: 62ch;
  font-size: 0.95rem;
}

@media (min-width: 900px) {
  .process-diagram {
    grid-template-columns: repeat(3, 1fr);
    border-top: none;
  }
  .process-step {
    border-bottom: none;
    border-top: 1px solid var(--line);
    border-right: 1px solid var(--line);
    padding: 1.75rem 1.75rem 1.75rem 0;
  }
  .process-step:nth-child(3n) {
    border-right: none;
  }
}

/* ============ Who we work with — wide text block + note ============ */
.split-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 900px) {
  .split-block {
    grid-template-columns: 3fr 2fr;
  }
}

.wide-text {
  font-size: 1.2rem;
  max-width: 54ch;
}

.wide-text p + p {
  margin-top: 1.25rem;
}

.note-block {
  border-top: 2px solid var(--ink);
  padding-top: 1.25rem;
  font-family: var(--sans);
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.note-block h4 {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

/* ============ Approach — checklist band ============ */
.approach-band {
  background: var(--ink);
  color: var(--paper);
  border-bottom: none;
}

.approach-band .section-head h2 {
  color: var(--paper);
}

.approach-band .eyebrow {
  color: var(--lime);
}

.approach-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid rgba(244, 239, 228, 0.2);
}

@media (min-width: 700px) {
  .approach-list {
    grid-template-columns: 1fr 1fr;
  }
}

.approach-list li {
  padding: 1.4rem 0;
  border-bottom: 1px solid rgba(244, 239, 228, 0.2);
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  font-size: 1.02rem;
}

@media (min-width: 700px) {
  .approach-list li:nth-child(odd) {
    padding-right: 2rem;
    border-right: 1px solid rgba(244, 239, 228, 0.2);
  }
  .approach-list li:nth-child(even) {
    padding-left: 2rem;
  }
}

.approach-list .mark {
  color: var(--lime);
  font-family: var(--mono);
  flex-shrink: 0;
}

/* ============ Contact ============ */
.contact-section {
  border-bottom: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 980px) {
  .contact-grid {
    grid-template-columns: 5fr 7fr;
  }
}

.contact-info h2 {
  font-size: clamp(2.2rem, 4.6vw, 3.2rem);
  max-width: 14ch;
}

.contact-details {
  margin-top: 2rem;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.8;
}

.contact-details a.email-link {
  color: var(--ultramarine);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  word-break: break-word;
}

.contact-details .label {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  display: block;
  margin-top: 1.25rem;
}

/* Form */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 620px) {
  .form-grid.two-col {
    grid-template-columns: 1fr 1fr;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-family: var(--sans);
}

.field label {
  font-size: 0.85rem;
  font-weight: 600;
}

.field .optional {
  font-weight: 400;
  color: var(--ink-soft);
}

.field input,
.field select,
.field textarea {
  font: inherit;
  font-family: var(--sans);
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}

.field textarea {
  resize: vertical;
  min-height: 120px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 3px solid var(--ultramarine);
  outline-offset: 1px;
  border-color: var(--ultramarine);
}

.field-error {
  font-size: 0.8rem;
  color: #9c1c1c;
  min-height: 1.1em;
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: #9c1c1c;
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-family: var(--sans);
  font-size: 0.9rem;
}

.checkbox-field input {
  margin-top: 0.2rem;
  width: 1.05rem;
  height: 1.05rem;
  flex-shrink: 0;
}

.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
}

.form-status {
  font-family: var(--sans);
  font-size: 0.92rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line-strong);
  display: none;
}

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

.form-status.is-error {
  border-color: #9c1c1c;
  color: #9c1c1c;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--paper-2);
  padding: 3rem 0 2rem;
  font-family: var(--sans);
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 800px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-grid .wordmark {
  color: var(--ink);
}

.footer-col h4 {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col a {
  text-decoration: none;
}

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

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
}

/* ============ Simple pages (legal, 404) ============ */
.simple-page {
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.simple-page h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 1.5rem;
}

.simple-page h2 {
  font-size: 1.4rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.simple-page dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem 1.5rem;
  font-family: var(--sans);
  max-width: 60ch;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}

@media (min-width: 620px) {
  .simple-page dl {
    grid-template-columns: 14rem 1fr;
  }
}

.simple-page dt {
  font-weight: 700;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.simple-page dd {
  margin: 0 0 1rem;
}

.simple-page p {
  max-width: 62ch;
}

.todo-note {
  background: #fff3cd;
  border: 1px dashed #9c7a1c;
  padding: 0.5rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  display: inline-block;
}

.page-404 {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: clamp(3rem, 10vw, 7rem) 0;
}

.page-404 .code {
  font-family: var(--mono);
  font-size: clamp(4rem, 14vw, 8rem);
  color: var(--ultramarine);
  line-height: 1;
}

/* Thank-you page */
.thanks-page {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(3rem, 10vw, 6rem) 0;
}

.thanks-page .mark-big {
  font-family: var(--mono);
  font-size: 3rem;
  color: var(--lime);
}