/* KORKY — design tokens */
:root {
  --ink: #2c2f33;
  --ink-soft: #4a4e55;
  --orange: #ff8a00;
  --orange-deep: #e85c00;
  --orange-text: #c03b00; /* AA-safe on white / surface */
  --white: #ffffff;
  --surface: #f3f4f6;
  --surface-2: #e8eaed;
  --line: rgba(44, 47, 51, 0.12);
  --shadow: 0 12px 40px rgba(44, 47, 51, 0.08);
  --font: "Barlow", system-ui, sans-serif;
  --font-display: "Barlow Condensed", "Barlow", system-ui, sans-serif;
  --header-h: 4.5rem;
  --radius: 4px;
  --max: 1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 0.75rem);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--orange-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 0.2s var(--ease);
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--white);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.container-narrow {
  width: min(100% - 2.5rem, 640px);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  width: clamp(140px, 22vw, 200px);
  height: auto;
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: var(--ink);
  transition: transform 0.25s var(--ease), opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.25rem 1.5rem;
}

.site-nav a {
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
}

.site-nav a:hover,
.site-nav a[aria-current="true"] {
  color: var(--orange-deep);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(135deg, rgba(255, 138, 0, 0.12) 0%, transparent 42%),
    linear-gradient(225deg, rgba(232, 92, 0, 0.1) 0%, transparent 40%),
    linear-gradient(180deg, #f7f8fa 0%, #ebecef 55%, #e2e4e8 100%);
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      -18deg,
      transparent,
      transparent 28px,
      rgba(44, 47, 51, 0.03) 28px,
      rgba(44, 47, 51, 0.03) 29px
    );
  opacity: 0.9;
}

.hero-bg::after {
  content: "";
  position: absolute;
  right: -8%;
  top: 15%;
  width: min(48vw, 520px);
  height: min(48vw, 520px);
  background: linear-gradient(145deg, var(--orange) 0%, var(--orange-deep) 100%);
  clip-path: polygon(35% 0, 100% 0, 65% 100%, 0 100%);
  opacity: 0.18;
  animation: hero-chevron 8s var(--ease) infinite alternate;
}

@keyframes hero-chevron {
  from {
    transform: translateX(0) scale(1);
  }
  to {
    transform: translateX(-2%) scale(1.04);
  }
}

.hero-content {
  width: min(100% - 2.5rem, 720px);
  text-align: center;
  padding: 3rem 0 4rem;
  animation: fade-up 0.9s var(--ease) both;
}

.hero-logo {
  width: min(100%, 460px);
  margin: 0 auto 1.5rem;
}

.hero-claim {
  margin: 0 0 2rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.2vw, 1.85rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-family: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-deep) 100%);
  color: var(--white);
  border-color: transparent;
}

.btn-primary:hover {
  color: var(--white);
  filter: brightness(1.05);
}

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

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

/* Sections */
.section {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
}

.section-about {
  background: var(--white);
}

.section-solutions {
  background: linear-gradient(180deg, var(--surface) 0%, #eef0f3 100%);
}

.section-form {
  background: var(--white);
}

.section-contact {
  background: var(--surface);
}

.section-label {
  margin: 0 0 0.5rem;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange-text);
}

.section-title {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink);
}

.section-lead {
  margin: 0 0 2.5rem;
  max-width: 42rem;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.about-copy {
  display: grid;
  gap: 1.25rem;
  max-width: 48rem;
}

.about-copy p {
  margin: 0;
  font-size: 1.125rem;
  color: var(--ink-soft);
}

/* Categories */
.categories {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.category {
  padding: 1.75rem 1.5rem;
  border-left: 4px solid var(--orange);
  background: var(--white);
  box-shadow: var(--shadow);
}

.category-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--orange);
}

.category p {
  margin: 0;
  color: var(--ink-soft);
}

.subcategories {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: sub;
  display: grid;
  gap: 1.15rem;
}

.subcategories li {
  display: grid;
  gap: 0.25rem;
  padding-left: 2.5rem;
  position: relative;
  counter-increment: sub;
}

.subcategories li::before {
  content: counter(sub);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.75rem;
  height: 1.75rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--orange), var(--orange-deep));
  color: var(--white);
  font-weight: 700;
  font-size: 0.85rem;
}

.subcategories strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--orange);
}

.subcategories span {
  color: var(--ink-soft);
}

/* Brands */
.brands-block {
  margin-bottom: 3rem;
}

.brands-heading {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink);
}

.brands-lead {
  margin: 0 0 1.75rem;
  color: var(--ink-soft);
}

.brands-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}

.brand-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 0.75rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.brand-item:hover {
  border-color: var(--orange);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--orange);
  text-align: center;
}

.brand-item img {
  width: 100%;
  max-width: 110px;
  height: 48px;
  object-fit: contain;
  opacity: 0.95;
}

.solutions-cta {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: var(--ink);
  color: var(--white);
  border-radius: var(--radius);
}

.solutions-cta h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.solutions-cta p {
  margin: 0 0 1.5rem;
  color: rgba(255, 255, 255, 0.82);
}

.solutions-cta .btn-primary {
  box-shadow: 0 8px 24px rgba(255, 138, 0, 0.35);
}

/* Form */
.contact-form {
  display: grid;
  gap: 1.15rem;
}

.hp-field {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
}

.form-row {
  display: grid;
  gap: 0.4rem;
}

.form-row label {
  font-weight: 600;
  font-size: 0.95rem;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  font: inherit;
  color: var(--ink);
  transition: border-color 0.2s, background 0.2s;
}

.form-row input:hover,
.form-row textarea:hover {
  border-color: rgba(44, 47, 51, 0.28);
}

.form-row input:focus,
.form-row textarea:focus {
  background: var(--white);
  border-color: var(--orange);
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 138, 0, 0.2);
}

.form-row input.is-invalid,
.form-row textarea.is-invalid {
  border-color: #c62828;
}

.form-status {
  margin: 0;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
}

.form-status.is-success {
  background: #e8f5e9;
  color: #1b5e20;
}

.form-status.is-error {
  background: #ffebee;
  color: #b71c1c;
}

.contact-form .btn {
  justify-self: start;
  margin-top: 0.25rem;
}

.contact-form .btn:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 800px) {
  .contact-grid {
    grid-template-columns: 1.15fr 1fr;
  }

  .contact-block:first-child {
    grid-row: span 2;
  }
}

.contact-block {
  padding: 1.75rem 1.5rem;
  background: var(--white);
  border-top: 3px solid var(--orange);
  box-shadow: var(--shadow);
}

.contact-block h3 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--orange);
}

.contact-block p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

.contact-dl {
  margin: 0;
  display: grid;
  gap: 1rem;
}

.contact-dl div {
  display: grid;
  gap: 0.2rem;
}

.contact-dl dt {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.contact-dl dd {
  margin: 0;
}

.person-name {
  margin: 0 !important;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink) !important;
}

.person-role {
  margin: 0.15rem 0 1rem !important;
  font-size: 0.95rem;
}

.contact-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.contact-links a,
.contact-dl a {
  font-weight: 600;
  text-decoration: none;
}

.contact-links a:hover,
.contact-dl a:hover {
  text-decoration: underline;
}

/* Footer */
.site-footer {
  padding: 2rem 0;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-logo {
  width: 120px;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--orange);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--white);
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

/* Mobile nav */
@media (max-width: 780px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.25rem 1.25rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s var(--ease), opacity 0.25s;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0.25rem;
  }

  .site-nav a {
    display: block;
    padding: 0.75rem 0.25rem;
  }

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

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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