/* ==========================================================================
   SoFlo Fiber Inc. — site styles
   Modern & minimal, mobile-first, system font stack
   ========================================================================== */

:root {
  --color-bg: #ffffff;
  --color-surface: #f7f8fa;
  --color-border: #e5e7eb;
  --color-text: #1f2430;
  --color-muted: #5b6473;
  --color-accent: #1e3a5f;
  --color-accent-hover: #274b7a;
  --color-accent-soft: #eaf0f7;

  --radius: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-md: 0 6px 20px rgba(16, 24, 40, 0.06);

  --content-max: 1120px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.25rem;
  --space-5: 3.5rem;
  --space-6: 5rem;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover { color: var(--color-accent-hover); text-decoration: underline; }

h1, h2, h3, h4 {
  color: var(--color-text);
  line-height: 1.25;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 4vw + 1rem, 3rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 2vw + 1rem, 2.1rem); font-weight: 650; }
h3 { font-size: 1.25rem; font-weight: 600; }
p  { margin: 0 0 var(--space-2); color: var(--color-muted); }

/* Layout --------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

section { padding: var(--space-5) 0; }
@media (min-width: 768px) { section { padding: var(--space-6) 0; } }

.section-heading {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-4);
}
.section-heading p { font-size: 1.05rem; }

/* Header / Nav --------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; color: var(--color-text); }
.brand-mark {
  width: 28px; height: 28px;
  border-radius: 6px;
  background: var(--color-accent);
  display: grid; place-items: center;
  color: #fff; font-size: 0.9rem; font-weight: 700;
}
.brand-name {
  font-size: 2em;
}
.nav-toggle {
  appearance: none;
  border: 1px solid var(--color-border);
  background: #fff;
  width: 40px; height: 40px;
  border-radius: var(--radius);
  display: inline-grid; place-items: center;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 2px; background: var(--color-text);
  position: relative;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: ""; position: absolute; left: 0;
  width: 18px; height: 2px; background: var(--color-text);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after  { top:  6px; }

.nav-links {
  display: none;
  list-style: none; margin: 0; padding: 0;
  gap: var(--space-3);
}
.nav-links a {
  color: var(--color-muted);
  font-weight: 500;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover { color: var(--color-text); text-decoration: none; }
.nav-links a[aria-current="page"] {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .nav-links  { display: flex; align-items: center; }
}

/* Mobile menu open state */
.site-header.is-open .nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-2) 0 var(--space-3);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2);
}

/* Buttons -------------------------------------------------------------- */
.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.08s ease, background 0.15s ease,
              border-color 0.15s ease, color 0.15s ease;
  text-align: center;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

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

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

/* Hero ----------------------------------------------------------------- */
.hero {
  padding: var(--space-6) 0 var(--space-5);
  background:
    radial-gradient(1000px 400px at 80% -10%, var(--color-accent-soft), transparent 60%),
    var(--color-bg);
}
.hero-inner {
  display: grid;
  gap: var(--space-3);
  max-width: 820px;
}
.hero h1 { margin-bottom: var(--space-2); }
.hero p  { font-size: 1.15rem; max-width: 60ch; }
.hero-actions {
  display: flex; flex-wrap: wrap; gap: var(--space-2);
  margin-top: var(--space-2);
}

.page-header {
  padding: var(--space-5) 0 var(--space-3);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.page-header h1 { margin-bottom: var(--space-1); }
.page-header p  { max-width: 60ch; }

/* Cards / Grid --------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #d6dbe3;
}
.card h3 { margin-bottom: 0.4rem; }
.card .icon, .card .partnerLogo, {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  display: grid; place-items: center;
  font-weight: 700; margin-bottom: var(--space-2);
}
.card .resellerLogo {
  display: grid; place-items: center;
  padding-bottom: 10px;
  height: 240px;
}

.card .partnerLogo {
  width: 340px;
}

/* Two-column content --------------------------------------------------- */
.two-col {
  display: grid; gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .two-col { grid-template-columns: 1.1fr 1fr; align-items: center; }
}
.media-placeholder {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, var(--color-accent-soft), #fff 70%),
    var(--color-surface);
  border: 1px solid var(--color-border);
}

/* Client logos --------------------------------------------------------- */
.logo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}
@media (min-width: 640px) { .logo-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px) { .logo-grid { grid-template-columns: repeat(4, 1fr); } }

.logo-tile {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  height: 90px;
  display: grid; place-items: center;
  color: var(--color-muted);
  font-weight: 600; letter-spacing: 0.02em;
  text-transform: uppercase; font-size: 0.9rem;
}

/* Testimonials --------------------------------------------------------- */
.quote {
  background: #fff;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}
.quote p { color: var(--color-text); font-size: 1.05rem; font-style: italic; }
.quote cite {
  display: block;
  margin-top: var(--space-1);
  color: var(--color-muted);
  font-style: normal;
  font-size: 0.95rem;
}

/* Forms ---------------------------------------------------------------- */
.form {
  display: grid; gap: var(--space-2);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}
.field { display: grid; gap: 0.35rem; }
.field label { font-weight: 600; font-size: 0.95rem; color: var(--color-text); }
.field input,
.field textarea,
.field select {
  font: inherit;
  color: var(--color-text);
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  width: 100%;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.field textarea { min-height: 140px; resize: vertical; }
.field .hint { font-size: 0.85rem; color: var(--color-muted); }

.form-row {
  display: grid; gap: var(--space-2);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .form-row { grid-template-columns: 1fr 1fr; } }

.honey {
  position: absolute; left: -5000px;
  width: 1px; height: 1px; overflow: hidden;
}

.alert {
  padding: 0.9rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-3);
  font-size: 0.98rem;
}
.alert-success { background: #ecfdf5; border-color: #a7f3d0; color: #065f46; }
.alert-error   { background: #fef2f2; border-color: #fecaca; color: #991b1b; }

/* Contact meta --------------------------------------------------------- */
.contact-meta {
  display: grid; gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.contact-meta dt { font-weight: 600; color: var(--color-text); }
.contact-meta dd { margin: 0 0 var(--space-2); color: var(--color-muted); }

/* CTA banner ----------------------------------------------------------- */
.cta {
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
}
.cta h2, .cta p { color: #fff; }
.cta p { opacity: 0.88; max-width: 55ch; margin-left: auto; margin-right: auto; }
.cta .btn-primary { background: #fff; color: var(--color-accent); }
.cta .btn-primary:hover { background: #f1f5fa; }

/* Footer --------------------------------------------------------------- */
.site-footer {
  margin-top: var(--space-6);
  padding: var(--space-4) 0 var(--space-3);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: 0.95rem;
}
.site-footer .row {
  display: grid; gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .site-footer .row { grid-template-columns: 1.2fr 1fr 1fr; }
}
.site-footer h4 { font-size: 0.95rem; margin-bottom: var(--space-1); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.35rem; }
.site-footer a { color: var(--color-muted); }
.site-footer a:hover { color: var(--color-text); }
.site-footer .copyright {
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  font-size: 0.88rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem;
}

/* Utility -------------------------------------------------------------- */
.text-center { text-align: center; }
.visually-hidden {
  position: absolute !important;
  clip: rect(1px, 1px, 1px, 1px);
  width: 1px; height: 1px; overflow: hidden; white-space: nowrap;
}

  /* ============ Responsive ============ */
  @media (max-width: 900px) {
    .nav-links { display: none; }
    .hero-row { grid-template-columns: 1fr; gap: 40px; }
    .service-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 24px; }
    .approach-grid { grid-template-columns: 1fr; gap: 48px; }
    .approach-sticky { position: static; }
    .cta-card { padding: 48px 32px; }
    .cta-card-inner { grid-template-columns: 1fr; gap: 32px; }
    .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .wrap { padding: 0 20px; }
    .hero { padding: 56px 0 80px; }
    .services, .approach, .cta { padding: 72px 0; }
  }

  @media (max-width: 520px) {
    .stats-grid { grid-template-columns: 1fr; }
    .foot-grid { grid-template-columns: 1fr; }
    .foot-bottom { flex-direction: column; gap: 12px; text-align: center; }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }