/* ===========================
   Trafic Factory — style.css
   =========================== */

:root {
  --color-black: #0A0A0A;
  --color-black-soft: #171717;
  --color-pink: #E80081;
  --color-pink-dark: #B8006A;
  --color-white: #FFFFFF;
  --color-gray-light: #F7F7F8;
  --color-gray-border: #E5E5E7;
  --color-text: #1A1A1A;
  --color-text-muted: #4B4B4F;
  --color-text-on-dark: #F2F2F3;
  --color-text-on-dark-muted: #B5B5B8;

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

  --container-width: 1140px;
  --radius: 12px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.10);

  --header-height: 72px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }
body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, p { margin: 0; }
button { font: inherit; cursor: pointer; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-pink);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
}
.skip-link:focus { left: 0; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-accent { color: var(--color-pink); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--color-pink);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-pink-dark); }
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-gray-border);
}
.btn-ghost:hover { border-color: var(--color-black); }
.btn-lg { padding: 0.9rem 1.9rem; font-size: 1rem; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-black);
  letter-spacing: -0.02em;
}
.logo-accent { color: var(--color-pink); }

.main-nav { display: flex; align-items: center; }
.nav-list {
  display: flex;
  gap: 2rem;
}
.nav-list a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  position: relative;
  padding: 0.25rem 0;
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--color-pink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.nav-list a:hover::after { transform: scaleX(1); }

.header-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-black);
  margin: 0 auto;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---- Hero ---- */
.hero {
  background: var(--color-black);
  color: var(--color-text-on-dark);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 2rem;
  padding: 5rem 1.5rem 5rem;
  min-height: 560px;
}
.eyebrow {
  color: var(--color-pink);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.hero h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-on-dark-muted);
  max-width: 46ch;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero .btn-ghost {
  color: var(--color-text-on-dark);
  border-color: rgba(255,255,255,0.25);
}
.hero .btn-ghost:hover { border-color: var(--color-white); }

.hero-visual { display: flex; justify-content: center; }
.hero-graphic { width: 100%; max-width: 380px; }
.hg-ring {
  fill: none;
  stroke: rgba(255,255,255,0.12);
  stroke-width: 1.5;
}
.hg-line {
  fill: none;
  stroke: var(--color-pink);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.hg-dot { fill: var(--color-white); }
.hg-dot-accent { fill: var(--color-pink); }

/* ---- Section headings (shared) ---- */
section h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.section-lead {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 60ch;
  margin-bottom: 3rem;
}

/* ---- Why / cards ---- */
.why { padding: 5rem 0; background: var(--color-white); }
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.card {
  background: var(--color-gray-light);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--color-black);
  color: var(--color-pink);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.card-icon svg { width: 24px; height: 24px; }
.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.card p { color: var(--color-text-muted); font-size: 0.95rem; }

/* ---- Services ---- */
.services { padding: 5rem 0; background: var(--color-gray-light); }
.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.service-block {
  background: var(--color-white);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius);
  padding: 2.25rem;
}
.service-tag {
  display: inline-block;
  background: var(--color-black);
  color: var(--color-pink);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.service-block h3 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.service-block > p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}
.service-list { display: flex; flex-direction: column; gap: 0.7rem; }
.service-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.95rem;
  color: var(--color-text);
}
.service-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-pink);
}

/* ---- References ---- */
.references { padding: 5rem 0; background: var(--color-white); }
.ref-cards { grid-template-columns: repeat(4, 1fr); }
.ref-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.ref-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.ref-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.2rem; }
.ref-role {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-pink);
  margin-bottom: 0.75rem;
}
.ref-card > p:not(.ref-role) {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}
.ref-card a {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-black);
}
.ref-card a:hover { color: var(--color-pink); }

/* ---- Contact ---- */
.contact { padding: 5rem 0; background: var(--color-gray-light); }
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  align-items: start;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--color-white);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius);
  padding: 2rem;
}
.form-row { display: flex; flex-direction: column; gap: 0.4rem; }
.form-row label { font-weight: 600; font-size: 0.9rem; }
.form-row .optional { font-weight: 400; color: var(--color-text-muted); }
.form-row input,
.form-row textarea {
  font: inherit;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-gray-border);
  border-radius: 8px;
  background: var(--color-white);
  color: var(--color-text);
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-pink);
  box-shadow: 0 0 0 3px rgba(232,0,129,0.15);
}
.form-submit { align-self: flex-start; }
.form-feedback {
  font-size: 0.9rem;
  font-weight: 600;
  min-height: 1.2em;
}
.form-feedback.success { color: #0A7A3F; }
.form-feedback.error { color: #C6193A; }

.contact-info {
  background: var(--color-black);
  color: var(--color-text-on-dark);
  border-radius: var(--radius);
  padding: 2rem;
}
.contact-info h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 1.25rem; }
.contact-list { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-list li { font-size: 0.95rem; line-height: 1.5; }
.contact-list a { color: var(--color-text-on-dark); font-weight: 600; }
.contact-list a:hover { color: var(--color-pink); }
.contact-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-pink);
  margin-bottom: 0.25rem;
}

/* ---- Footer ---- */
.site-footer {
  background: var(--color-black-soft);
  color: var(--color-text-on-dark-muted);
  padding: 3rem 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
.footer-logo { font-size: 1.15rem; margin-bottom: 0.4rem; }
.footer-badge { font-size: 0.85rem; }
.footer-contact { display: flex; flex-direction: column; gap: 0.5rem; font-size: 0.9rem; }
.footer-contact a { color: var(--color-text-on-dark-muted); }
.footer-contact a:hover { color: var(--color-pink); }
.footer-copy { font-size: 0.85rem; text-align: right; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    padding-top: 3rem;
    padding-bottom: 3rem;
    text-align: left;
  }
  .hero-visual { max-width: 260px; margin: 0 auto; order: -1; }

  .cards { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; text-align: left; gap: 1.5rem; }
  .footer-copy { text-align: left; }
}

@media (max-width: 600px) {
  .cards { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .nav-list {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--color-white);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--color-gray-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-130%);
    transition: transform 0.25s ease;
  }
  .nav-list.is-open { transform: translateY(0); }
  .nav-list li { border-top: 1px solid var(--color-gray-border); }
  .nav-list a { display: block; padding: 1rem 1.5rem; }
  .header-cta { display: none; }
}