/* ==========================================================================
   SOFREGIKAL — Brand Design System
   Built for digital commerce. Structured for growth.
   ========================================================================== */

:root {
  /* Brand colors */
  --color-obsidian: #111318;
  --color-graphite: #2C3038;
  --color-warm-white: #F7F7F5;
  --color-soft-gray: #E8EAF0;
  --color-deep-blue: #1F4FFF;
  --color-deep-blue-dark: #163BC4;
  --color-white: #FFFFFF;

  /* Semantic tokens */
  --bg-page: var(--color-white);
  --bg-alt: var(--color-warm-white);
  --text-primary: var(--color-obsidian);
  --text-secondary: var(--color-graphite);
  --text-on-dark: var(--color-white);
  --border-color: var(--color-soft-gray);
  --accent: var(--color-deep-blue);
  --accent-hover: var(--color-deep-blue-dark);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", Arial, sans-serif;

  /* Layout */
  --max-width: 1240px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --nav-height: 76px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 180ms var(--ease);
  --transition-slow: 500ms var(--ease);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@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;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}

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

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

h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; }

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

button { font-family: inherit; cursor: pointer; }

input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---- Layout helpers --------------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

@media (max-width: 720px) {
  .section { padding: 64px 0; }
}

.section--alt { background: var(--bg-alt); }
.section--dark {
  background: var(--color-obsidian);
  color: rgba(247, 247, 245, 0.8);
}
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--text-on-dark); }

.eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section--dark .eyebrow { color: #7C9BFF; }

.section-head {
  max-width: 700px;
  margin: 0 0 56px;
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head p {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

.section--dark .section-head p { color: rgba(247, 247, 245, 0.72); }

h2.section-title { font-size: clamp(1.75rem, 3vw, 2.5rem); }

/* ---- Buttons ------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 28px;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}

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

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

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: rgba(44, 48, 56, 0.28);
}
.btn-secondary:hover { border-color: var(--text-primary); }

.section--dark .btn-secondary {
  color: var(--text-on-dark);
  border-color: rgba(247, 247, 245, 0.3);
}
.section--dark .btn-secondary:hover { border-color: var(--text-on-dark); }

.btn-block { width: 100%; }

.cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 560px) {
  .cta-group .btn { flex: 1 1 auto; }
}

/* ---- Navigation ------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--transition-slow), border-color var(--transition-slow), box-shadow var(--transition-slow);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border-color);
}

.nav-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}
.nav-links a:hover { color: var(--text-primary); }

.nav-cta { display: flex; align-items: center; gap: 20px; }
.nav-cta .btn { height: 44px; padding: 0 22px; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}
.nav-toggle:hover { background: var(--bg-alt); }

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  position: relative;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav-toggle span::before,
.nav-toggle span::after { content: ""; position: absolute; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }

.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta .btn-secondary { display: none; }
  .nav-toggle { display: flex; }

  .site-header.is-scrolled,
  .site-header { background: rgba(255, 255, 255, 0.92); border-bottom: 1px solid var(--border-color); }
  .site-header { backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); }

  .mobile-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    overflow-y: auto;
  }

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

  .mobile-menu-inner {
    padding: 32px 24px 48px;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .mobile-menu a.mobile-link {
    padding: 16px 4px;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
  }

  .mobile-menu .cta-group { margin-top: 24px; }
}

@media (min-width: 901px) {
  .mobile-menu { display: none; }
}

/* ---- Hero ------------------------------------------------------- */
.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + 48px);
  padding-bottom: 64px;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(31, 79, 255, 0.08), transparent 60%),
    var(--color-white);
}

.hero-inner {
  max-width: 880px;
}

.hero h1 {
  font-size: clamp(2.25rem, 5.5vw, 4.25rem);
  margin-bottom: 24px;
}

.hero .lede {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 40px;
}

.hero-meta {
  margin-top: 56px;
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.hero-meta .stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.hero-meta .stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

@media (max-width: 720px) {
  .hero { min-height: auto; padding-top: calc(var(--nav-height) + 32px); }
  .hero-meta { gap: 28px; }
}

/* ---- Two-column grid / cards ------------------------------------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-2, .grid-4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.card--compact { padding: 28px; }

.card h3 {
  font-size: 1.375rem;
  margin-bottom: 12px;
}

.card .card-desc {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.card ul.check-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.card ul.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-obsidian);
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

/* ---- Pillars (why sofregikal) ---------------------------------------- */
.pillar {
  padding: 8px 0;
}
.pillar h3 { font-size: 1.1875rem; }
.pillar p { color: var(--text-secondary); font-size: 0.9375rem; margin-bottom: 14px; }
.pillar .tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(31, 79, 255, 0.08);
  padding: 6px 12px;
  border-radius: 20px;
}

/* ---- Service deep-dive tabs-like layout ------------------------------ */
.service-block {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

@media (max-width: 900px) {
  .service-block { grid-template-columns: 1fr; gap: 32px; }
}

.service-block + .service-block {
  margin-top: 88px;
  padding-top: 88px;
  border-top: 1px solid var(--border-color);
}

@media (max-width: 720px) {
  .service-block + .service-block { margin-top: 56px; padding-top: 56px; }
}

.service-meta .eyebrow { margin-bottom: 20px; }
.service-meta h3 { font-size: 1.875rem; margin-bottom: 16px; }
.service-meta p { color: var(--text-secondary); }

.service-meta .meta-row {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}
.service-meta .meta-row dt {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.service-meta .meta-row dd {
  margin: 0 0 16px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ---- Strategic statement ------------------------------------------- */
.statement {
  text-align: center;
  max-width: 920px;
  margin: 0 auto;
}
.statement h2 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.25;
}
.statement p.support {
  max-width: 640px;
  margin: 24px auto 0;
  color: rgba(247, 247, 245, 0.72);
  font-size: 1.0625rem;
}

/* ---- About ------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
}

.about-copy p { font-size: 1.0625rem; }

.about-facts {
  display: grid;
  gap: 20px;
}

.fact {
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
}
.fact dt {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 6px;
}
.fact dd { margin: 0; color: var(--text-primary); font-weight: 500; }

/* ---- Contact ------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

.contact-info h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
.contact-info > p { font-size: 1.0625rem; margin-bottom: 40px; }

.contact-channel {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
}
.contact-channel:last-child { border-bottom: 1px solid var(--border-color); }

.contact-channel .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-channel .label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.contact-channel .value {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-channel a.value:hover { color: var(--accent); }

.contact-form {
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
}

@media (max-width: 560px) {
  .contact-form { padding: 28px 24px; }
}

.form-row { margin-bottom: 20px; }
.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 560px) {
  .form-row-2 { grid-template-columns: 1fr; }
}

.form-row label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-row .optional {
  font-weight: 400;
  color: var(--text-secondary);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--color-white);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(31, 79, 255, 0.15);
}

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

.form-note {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 16px;
}

.form-status {
  margin-top: 16px;
  font-size: 0.9375rem;
  font-weight: 600;
  display: none;
}
.form-status.is-success { display: block; color: #187A4C; }
.form-status.is-error { display: block; color: #C0362C; }

/* honeypot field */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---- Footer ------------------------------------------------------- */
.site-footer {
  background: var(--color-obsidian);
  color: rgba(247, 247, 245, 0.65);
  padding: 64px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(247, 247, 245, 0.12);
}

@media (max-width: 720px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
}

.footer-brand .wordmark { color: var(--text-on-dark); margin-bottom: 12px; display: inline-block; }
.footer-brand p { max-width: 320px; font-size: 0.9375rem; }

.footer-col h4 {
  color: var(--text-on-dark);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 0.9375rem; transition: color var(--transition-fast); }
.footer-col ul a:hover { color: var(--text-on-dark); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  font-size: 0.8125rem;
}

.footer-legal-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-legal-links a:hover { color: var(--text-on-dark); }

/* ---- Entrance animation (hero only) ------------------------------------
   A single, self-contained CSS animation on page load — no JavaScript
   or scroll-tracking involved, so content can never end up permanently
   hidden. Kept deliberately subtle per the brand's "nearly invisible
   motion" principle, and neutralized above for prefers-reduced-motion. */
.fade-in-up {
  animation: fadeInUp 900ms var(--ease) both;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- Skip link ------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  background: var(--color-obsidian);
  color: var(--color-white);
  padding: 12px 20px;
  border-radius: 10px;
  z-index: 1000;
  transition: top var(--transition-fast);
}
.skip-link:focus { top: 12px; }

/* ---- Simple legal page layout ------------------------------------- */
.legal-page {
  padding-top: calc(var(--nav-height) + 56px);
  padding-bottom: 96px;
}
.legal-page .container { max-width: 800px; }
.legal-page h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); margin-bottom: 12px; }
.legal-page .updated { color: var(--text-secondary); font-size: 0.9375rem; margin-bottom: 48px; }
.legal-page h2 { font-size: 1.375rem; margin-top: 40px; }
.legal-page p, .legal-page li { color: var(--text-secondary); font-size: 1rem; }
.legal-page ul { margin-bottom: 1em; }
.legal-page ul li { position: relative; padding-left: 22px; margin-bottom: 8px; }
.legal-page ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.legal-page a.inline-link { color: var(--accent); text-decoration: underline; }

/* ---- 404 page ------------------------------------------------------- */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
}
.error-page .code {
  font-size: 5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}