/* ============================================================
   Concero — Global Styles
   Mobile-first, CSS custom properties, no framework
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: var(--text-base); scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-background);
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font: inherit; border: none; background: none; }

/* ── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ── Nav ───────────────────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 32px;
}
.nav-brand {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-secondary);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.nav-brand span { color: var(--color-primary); }
.nav-links {
  display: none;
  gap: 4px;
  flex: 1;
}
.nav-links a {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-text);
  background: var(--color-surface);
}
.nav-cta {
  margin-left: auto;
  flex-shrink: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(246,130,31,0.3);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(246,130,31,0.35);
}
.btn-secondary {
  background: var(--color-secondary);
  color: #fff;
}
.btn-secondary:hover {
  background: #2a2a4e;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary-light);
}
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.nav-mobile-toggle { display: flex; align-items: center; }
.nav-mobile-toggle button {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.nav-mobile-toggle button span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 0 20px;
  border-top: 1px solid var(--color-border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 10px 0;
  font-weight: 500;
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  transition: color 0.15s;
}
.mobile-menu a:hover { color: var(--color-text); }
.mobile-menu .btn { justify-content: center; margin-top: 8px; }

/* ── Sections ──────────────────────────────────────────────── */
section { padding-block: var(--section-y); }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }

.section-header { text-align: center; margin-bottom: 56px; }
.section-header p {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 560px;
  margin: 16px auto 0;
}

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  padding-block: 100px 88px;
  background: linear-gradient(135deg, var(--color-secondary) 0%, #16213e 60%, #0d1b2a 100%);
  color: #fff;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(246,130,31,0.12) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(0,180,216,0.08) 0%, transparent 50%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  gap: 48px;
  align-items: center;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(246,130,31,0.15);
  border: 1px solid rgba(246,130,31,0.3);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 20px;
}
.hero h1 { color: #fff; margin-bottom: 20px; }
.hero h1 em {
  font-style: normal;
  color: var(--color-primary);
}
.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(8px);
}
.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stat-item { text-align: center; }
.stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
}

/* ── Logo bar ──────────────────────────────────────────────── */
.logo-bar {
  padding-block: 48px;
  border-bottom: 1px solid var(--color-border);
}
.logo-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.logo-bar-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  white-space: nowrap;
  margin-right: 8px;
}
.logo-placeholder {
  height: 32px;
  padding-inline: 20px;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-muted);
  letter-spacing: 0.05em;
}

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-primary);
}
.card-icon svg { width: 24px; height: 24px; }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--color-muted); font-size: 0.95rem; }
.card-features {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.card-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-muted);
}
.card-features li::before {
  content: '';
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary-light);
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M3 8l3.5 3.5L13 4.5' stroke='%23F6821F' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}
.card-price {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-muted);
}
.card-price strong { color: var(--color-primary); font-size: 1rem; }

/* ── Grid layouts ──────────────────────────────────────────── */
.grid-2 { display: grid; gap: var(--component-gap); }
.grid-3 { display: grid; gap: var(--component-gap); }

/* ── Stats band ────────────────────────────────────────────── */
.stats-band {
  background: var(--color-secondary);
  color: #fff;
  padding-block: 72px;
}
.stats-grid { display: grid; gap: 32px; text-align: center; }
.stats-grid .stat-value { font-size: 2.8rem; }
.stats-grid .stat-label { color: rgba(255,255,255,0.65); font-size: 0.9rem; margin-top: 6px; }

/* ── Testimonials ──────────────────────────────────────────── */
.testimonials { background: var(--color-surface); }
.testimonial-grid { display: grid; gap: var(--component-gap); }
.testimonial-card {
  background: var(--color-background);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.testimonial-quote {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 24px;
  font-style: italic;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.9rem;
  flex-shrink: 0;
}
.author-name { font-weight: 700; font-size: 0.9rem; }
.author-role { font-size: 0.8rem; color: var(--color-muted); }

/* ── CTA band ──────────────────────────────────────────────── */
.cta-band {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  text-align: center;
}
.cta-band h2 { color: #fff; margin-bottom: 16px; }
.cta-band p { color: rgba(255,255,255,0.85); font-size: 1.1rem; margin-bottom: 36px; max-width: 480px; margin-inline: auto; margin-bottom: 36px; }
.cta-band .btn-secondary { background: var(--color-secondary); }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── Features list ─────────────────────────────────────────── */
.features-list { display: flex; flex-direction: column; gap: 20px; }
.feature-item { display: flex; gap: 16px; align-items: flex-start; }
.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}
.feature-icon svg { width: 20px; height: 20px; }
.feature-text h4 { margin-bottom: 4px; }
.feature-text p { font-size: 0.9rem; color: var(--color-muted); }

/* ── Image + text ──────────────────────────────────────────── */
.split-section { display: grid; gap: 48px; align-items: center; }
.split-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.split-visual-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--color-muted);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 32px;
  text-align: center;
}
.split-visual-placeholder svg { width: 48px; height: 48px; color: var(--color-border); }

/* ── Pricing ───────────────────────────────────────────────── */
.pricing-grid { display: grid; gap: var(--component-gap); }
.pricing-card {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.pricing-card.featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-light), var(--shadow-lg);
}
.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.pricing-name { font-weight: 700; font-size: 1rem; margin-bottom: 4px; }
.pricing-desc { font-size: 0.875rem; color: var(--color-muted); margin-bottom: 24px; }
.pricing-amount {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 28px;
}
.price-num { font-size: 3rem; font-weight: 800; letter-spacing: -0.03em; }
.price-unit { color: var(--color-muted); font-size: 0.875rem; }
.pricing-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.pricing-features li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.875rem; }
.pricing-features li .check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary-light);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}
.pricing-features li .check svg { width: 10px; height: 10px; color: var(--color-primary); }

/* ── Forms ─────────────────────────────────────────────────── */
.form-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 560px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
label { font-size: 0.875rem; font-weight: 600; color: var(--color-text); }
input, select, textarea {
  padding: 10px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font: inherit;
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-background);
  transition: border-color 0.15s;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(246,130,31,0.12);
}
textarea { resize: vertical; min-height: 100px; }
.form-submit { width: 100%; justify-content: center; padding: 14px; font-size: 1rem; }
.form-note { font-size: 0.8rem; color: var(--color-muted); margin-top: 12px; text-align: center; }
.thank-you {
  display: none;
  background: #f0fdf4;
  border: 1px solid #86efac;
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  color: #166534;
}
.thank-you svg { width: 32px; height: 32px; margin: 0 auto 10px; }

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding-block: 64px 32px;
}
.footer-grid { display: grid; gap: 40px; margin-bottom: 48px; }
.footer-brand { margin-bottom: 16px; }
.footer-brand-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}
.footer-brand-name span { color: var(--color-primary); }
.footer-tagline { font-size: 0.875rem; margin-top: 8px; max-width: 240px; line-height: 1.5; }
.footer-col h4 { color: #fff; font-size: 0.875rem; margin-bottom: 16px; font-weight: 700; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 0.875rem; transition: color 0.15s; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  font-size: 0.8rem;
}
.footer-bottom a:hover { color: #fff; }

/* ── Reveal animations ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── About page ────────────────────────────────────────────── */
.team-grid { display: grid; gap: var(--component-gap); }
.team-card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
}
.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 0 auto 16px;
}
.team-name { font-weight: 700; margin-bottom: 4px; }
.team-role { font-size: 0.85rem; color: var(--color-muted); margin-bottom: 10px; }
.team-bio { font-size: 0.875rem; color: var(--color-muted); }

/* ── FAQ ───────────────────────────────────────────────────── */
.faq-list { display: flex; flex-direction: column; gap: 2px; max-width: 720px; margin-inline: auto; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  font-weight: 600;
  cursor: pointer;
  background: var(--color-background);
  transition: background 0.15s;
  width: 100%;
  text-align: left;
  gap: 12px;
}
.faq-question:hover { background: var(--color-surface); }
.faq-question svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-primary);
  transition: transform 0.2s;
}
.faq-item.open .faq-question svg { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 20px 18px;
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.7;
  background: var(--color-background);
}
.faq-item.open .faq-answer { display: block; }

/* ── Responsive ────────────────────────────────────────────── */
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid  { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
  .hero-inner { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .split-section { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .pricing-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .nav-links { display: flex; }
  .nav-mobile-toggle { display: none; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .team-grid { grid-template-columns: repeat(4, 1fr); }
  .testimonial-grid { grid-template-columns: repeat(3, 1fr); }
}