/* Rafsan Labs — company site. Dark-first, one accent. */

:root {
  --bg: #0b0f14;
  --surface: #141a22;
  --surface-2: #1b2330;
  --text: #eef2f6;
  --muted: #8b98a8;
  --line: #243041;
  --accent: #3d9cf0;
  --accent-hover: #5aaff5;
  --accent-ink: #061018;
  --danger: #f07178;
  --ok: #6bcb8b;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --header-h: 4.25rem;
  --font-display: "Outfit", system-ui, "Segoe UI", sans-serif;
  --font-body: "Source Sans 3", system-ui, "Segoe UI", sans-serif;
  --focus: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent);
}

html[data-theme="light"] {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #eef2f6;
  --text: #12171e;
  --muted: #5b6775;
  --line: #d5dde6;
  --accent: #1f74c7;
  --accent-hover: #155fa6;
  --accent-ink: #ffffff;
  --shadow: 0 16px 40px rgba(18, 23, 30, 0.08);
  --focus: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent);
}

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

html {
  scroll-behavior: smooth;
}

@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;
  }

  .hero-bg {
    animation: none !important;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

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

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  font-weight: 600;
}

.skip-link:focus {
  top: 0.75rem;
}

.wrap {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: var(--header-h);
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
  margin-right: auto;
}

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

.nav-list,
.footer-nav,
.footer-social,
.chips,
.process-list,
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list {
  display: flex;
  gap: 0.25rem 1.1rem;
}

.nav-list a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.6rem;
  padding: 0.45rem 1.05rem;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

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

.btn-outline {
  color: var(--text);
  border-color: var(--accent);
  background: transparent;
}

.btn-outline:hover {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--text);
}

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

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

.btn-solid:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.theme-toggle,
.nav-toggle,
.icon-btn,
.filter-btn,
.modal-close {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  cursor: pointer;
}

.theme-toggle,
.nav-toggle {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
}

.theme-toggle-icon {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  box-shadow: inset -0.28rem -0.1rem 0 0 currentColor;
}

html[data-theme="light"] .theme-toggle-icon {
  box-shadow: none;
  background: currentColor;
  clip-path: polygon(50% 0, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: center;
  padding: 4rem 0 5rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 80% 10%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 55%),
    linear-gradient(180deg, transparent, var(--bg)),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 47px,
      color-mix(in srgb, var(--line) 70%, transparent) 48px
    );
  opacity: 0.55;
  animation: drift 28s linear infinite;
  pointer-events: none;
}

@keyframes drift {
  from { background-position: 0 0, 0 0, 0 0; }
  to { background-position: 0 0, 0 0, 48px 0; }
}

.hero-inner {
  position: relative;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  width: min(1120px, calc(100% - 2rem));
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.9rem;
}

.hero h1,
.section h2,
.modal-dialog h2 {
  font-family: var(--font-display);
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin: 0 0 1rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 6vw, 3.5rem);
}

.lede,
.section-intro {
  color: var(--muted);
  margin: 0 0 1.5rem;
  max-width: 40rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: color-mix(in srgb, var(--surface) 55%, transparent);
}

.section h2 {
  font-size: clamp(1.7rem, 3vw, 2.15rem);
}

.section h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin: 1.5rem 0 0.7rem;
}

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

.card,
.service-card,
.work-card,
.cert-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.3rem;
  box-shadow: var(--shadow);
}

.service-card svg,
.trust-link svg,
.icon-btn svg {
  width: 1.5rem;
  height: 1.5rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-icon {
  color: var(--accent);
  margin-bottom: 0.85rem;
}

.service-card h3,
.work-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.45rem;
}

.service-card p,
.work-card p {
  margin: 0 0 0.8rem;
  color: var(--muted);
}

.service-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.filter-btn {
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-weight: 600;
  font-size: 0.88rem;
}

.filter-btn[aria-pressed="true"],
.filter-btn.is-active {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.work-card {
  text-align: left;
  cursor: pointer;
  width: 100%;
  color: inherit;
  font: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

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

.work-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 0.85rem;
  background: var(--surface-2);
}

.work-card .meta {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}

.trust {
  padding: 1.4rem 0;
  border-block: 1px solid var(--line);
}

.trust-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: center;
}

.trust-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
}

.trust-link:hover {
  color: var(--text);
}

.carousel {
  position: relative;
  max-width: 40rem;
}

.carousel-track {
  min-height: 10rem;
}

.testimonial {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
}

.testimonial q {
  display: block;
  font-size: 1.15rem;
  quotes: none;
}

.testimonial footer {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.carousel-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
}

.icon-btn {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
}

.carousel-dots {
  display: flex;
  gap: 0.35rem;
}

.carousel-dots button {
  width: 0.55rem;
  height: 0.55rem;
  padding: 0;
  border-radius: 50%;
  border: 0;
  background: var(--line);
  cursor: pointer;
}

.carousel-dots button[aria-current="true"] {
  background: var(--accent);
}

.process-list {
  display: grid;
  gap: 1rem;
  counter-reset: step;
}

.process-list li {
  counter-increment: step;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem 1.2rem 4.2rem;
  position: relative;
}

.process-list li::before {
  content: counter(step);
  position: absolute;
  left: 1.15rem;
  top: 1.15rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
}

.process-list h3 {
  margin: 0 0 0.35rem;
}

.process-list p {
  margin: 0;
  color: var(--muted);
}

.about-layout,
.contact-layout {
  display: grid;
  gap: 2rem;
}

.founder-photo {
  margin: 0 0 1.25rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.founder-photo img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.chips li {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  font-size: 0.85rem;
}

.timeline {
  display: grid;
  gap: 0.9rem;
  border-left: 1px solid var(--line);
  padding-left: 1rem;
}

.timeline strong {
  display: block;
}

.timeline span {
  color: var(--muted);
  font-size: 0.9rem;
}

.mailto {
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.contact-form {
  display: grid;
  gap: 0.9rem;
  max-width: 32rem;
}

.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.field input,
.field textarea {
  width: 100%;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem 0.8rem;
}

.field-error {
  color: var(--danger);
  font-size: 0.88rem;
  margin: 0.3rem 0 0;
}

.form-status {
  min-height: 1.4em;
  margin: 0;
}

.form-status.is-ok {
  color: var(--ok);
}

.form-status.is-err {
  color: var(--danger);
}

.map-frame iframe {
  width: 100%;
  height: 280px;
  border: 0;
  border-radius: var(--radius);
  background: var(--surface);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.2rem 0 3rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-inner {
  display: grid;
  gap: 0.85rem;
}

.footer-nav,
.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
}

.footer-inner a {
  color: var(--muted);
  text-decoration: none;
}

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

.modal[hidden] {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 8, 12, 0.72);
}

.modal-dialog {
  position: relative;
  width: min(720px, calc(100% - 1.5rem));
  max-height: calc(100vh - 2rem);
  overflow: auto;
  margin: 1rem auto;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem 1.8rem;
  box-shadow: var(--shadow);
}

.modal-close {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 999px;
  font-size: 1.4rem;
  line-height: 1;
}

.modal-body p,
.modal-body ul {
  color: var(--muted);
}

.modal-files {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.modal-files iframe {
  width: 100%;
  min-height: 360px;
  border: 0;
  border-radius: 8px;
  background: var(--surface);
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.company-banner {
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  text-align: center;
  padding: 0.55rem 1rem;
  font-size: 0.92rem;
}

.company-banner a {
  font-weight: 700;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 960px) {
  .card-grid.services-4,
  #services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-layout,
  .contact-layout {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .map-frame iframe {
    height: 360px;
  }

  .hero-inner {
    margin-left: 0;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .header-actions .btn-outline {
    display: none;
  }

  .nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    display: none;
    padding: 0.75rem 1rem 1rem;
  }

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

  .nav-list {
    flex-direction: column;
    gap: 0.65rem;
  }

  .nav-list a[data-portfolio] {
    display: inline-flex;
    margin-top: 0.4rem;
    color: var(--accent);
  }
}

@media (min-width: 861px) {
  .nav-list a[data-portfolio] {
    display: none;
  }
}