/* =====================================================
   Traffic Grid Team — Design System
   ===================================================== */

/* --- Variables --- */
:root {
  --bg: #ffffff;
  --surface: #f8fafc;
  --surface-2: #f1f5f9;
  --border: #e2e8f0;
  --border-light: #f1f5f9;

  --text: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-bg: #eff6ff;
  --primary-border: #bfdbfe;

  --green: #059669;
  --green-bg: #ecfdf5;
  --green-border: #a7f3d0;

  --yellow: #d97706;
  --yellow-bg: #fffbeb;
  --yellow-border: #fde68a;

  --red: #dc2626;
  --red-bg: #fef2f2;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 12px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08), 0 4px 8px rgba(0,0,0,0.04);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.10), 0 8px 16px rgba(0,0,0,0.05);

  --transition: 0.18s ease;
  --container: 1200px;
  --nav-height: 68px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }
input, textarea, select { font-family: var(--font); }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 { line-height: 1.25; letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: clamp(1.875rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.125rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }
h4 { font-size: 1.0625rem; }
p { line-height: 1.7; }

.text-muted { color: var(--text-muted); }
.text-sm   { font-size: 0.875rem; }
.text-xs   { font-size: 0.75rem; }
.text-lg   { font-size: 1.125rem; }
.font-medium   { font-weight: 500; }
.font-semibold { font-weight: 600; }
.text-center   { text-align: center; }

/* --- Layout --- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section    { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }
.section-lg { padding: 6.5rem 0; }
.section-alt { background: var(--surface); }

.section-header { margin-bottom: 3rem; }
.section-header h2 { margin-bottom: 1rem; }
.section-header p  { font-size: 1.125rem; color: var(--text-muted); max-width: 600px; }
.section-header.center { text-align: center; }
.section-header.center p { margin: 0 auto; }

.grid   { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.items-center { align-items: center; }
.gap-2 { gap: .5rem; }
.gap-3 { gap: .75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.flex-wrap { flex-wrap: wrap; }

.mt-2 { margin-top: .5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12{ margin-top: 3rem; }
.mb-2 { margin-bottom: .5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.w-full { width: 100%; }
.divider { height: 1px; background: var(--border); margin: 2rem 0; }

/* --- Eyebrow / badge --- */
.eyebrow {
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
  display: block;
  margin-bottom: .75rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  padding: .25rem .75rem;
  border-radius: var(--radius-full);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-green   { background: var(--green-bg); color: var(--green); }
.badge-yellow  { background: var(--yellow-bg); color: var(--yellow); }
.badge-dark    { background: var(--text); color: #fff; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .9375rem;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1;
  border: 1.5px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(37,99,235,.28);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(37,99,235,.38);
  transform: translateY(-1px);
}
.btn-outline {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}
.btn-ghost {
  color: var(--primary);
  background: var(--primary-bg);
  border-color: var(--primary-border);
}
.btn-ghost:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-tg {
  background: #229ED9;
  color: #fff;
  border-color: #229ED9;
  box-shadow: 0 2px 8px rgba(34,158,217,.3);
}
.btn-tg:hover {
  background: #1a8bb8;
  border-color: #1a8bb8;
  transform: translateY(-1px);
}
.btn-lg { padding: 1rem 2rem; font-size: 1rem; border-radius: var(--radius-lg); }
.btn-sm { padding: .5rem 1rem; font-size: .875rem; }

/* --- Cards --- */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-border);
  transform: translateY(-2px);
}
.card-surface {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.card-featured {
  background: var(--primary-bg);
  border: 1.5px solid var(--primary-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

/* --- Highlight Boxes --- */
.highlight-box { padding: 1.25rem 1.5rem; border-radius: var(--radius-lg); border: 1px solid; }
.highlight-primary { background: var(--primary-bg); border-color: var(--primary-border); }
.highlight-green   { background: var(--green-bg); border-color: var(--green-border); }
.highlight-yellow  { background: var(--yellow-bg); border-color: var(--yellow-border); }
.highlight-dark    { background: var(--text); border-color: var(--text); color: #fff; }

/* --- Check / Cross icons --- */
.check-icon, .cross-icon {
  width: 20px; height: 20px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: .6875rem;
  font-weight: 800;
}
.check-icon { background: var(--green-bg); color: var(--green); }
.check-icon::after { content: '✓'; }
.cross-icon { background: var(--red-bg); color: var(--red); }
.cross-icon::after { content: '✕'; font-size: .6rem; }

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: .9375rem;
}
.feature-item p { color: var(--text-muted); font-size: .875rem; margin-top: .2rem; }

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-weight: 800;
  font-size: .9375rem;
  letter-spacing: -.01em;
  flex-shrink: 0;
}
.nav-logo-icon {
  width: 36px; height: 36px;
  background: var(--primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: .8125rem;
  font-weight: 800;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
  flex: 1;
}
.nav-link {
  padding: .5rem .75rem;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--text);
  background: var(--surface);
}
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  padding: .375rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition);
  z-index: 200;
}
.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-dropdown-item {
  display: flex;
  align-items: center;
  padding: .625rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  color: var(--text-muted);
  transition: all var(--transition);
}
.nav-dropdown-item:hover { background: var(--surface); color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: .75rem; flex-shrink: 0; }
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .375rem;
  cursor: pointer;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--text);
  border-radius: var(--radius-full);
  transition: all var(--transition);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0; bottom: 0;
  background: var(--bg);
  z-index: 99;
  overflow-y: auto;
  padding: 1.5rem;
  flex-direction: column;
  gap: .25rem;
  border-top: 1px solid var(--border);
}
.nav-mobile.open { display: flex; }
.nav-mobile-link {
  display: block;
  padding: .875rem 1rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  transition: background var(--transition);
}
.nav-mobile-link:hover { background: var(--surface); }
.nav-mobile-divider { height: 1px; background: var(--border); margin: .5rem 0; }

/* --- Hero --- */
.hero {
  padding: 6rem 0 5rem;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -150px; right: -150px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(37,99,235,.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--primary-bg);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-full);
  padding: .375rem 1rem;
  font-size: .8125rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 1.5rem;
}
.hero h1 { margin-bottom: 1.5rem; max-width: 820px; }
.hero h1 em { font-style: normal; color: var(--primary); }
.hero-sub {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 580px;
  margin-bottom: 2rem;
  line-height: 1.75;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-bottom: 3rem; }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.hero-stat { display: flex; flex-direction: column; gap: .25rem; }
.hero-stat-value {
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--text);
  line-height: 1;
}
.hero-stat-value em { font-style: normal; color: var(--primary); }
.hero-stat-label {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* --- Page header (inner pages) --- */
.page-hero {
  padding: 4rem 0 3.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.page-hero .eyebrow { margin-bottom: .75rem; }
.page-hero h1 { margin-bottom: 1rem; }
.page-hero p { font-size: 1.125rem; color: var(--text-muted); max-width: 620px; }
.page-hero .hero-actions { margin-bottom: 0; margin-top: 1.5rem; }

/* --- Steps --- */
.steps { display: flex; flex-direction: column; gap: 1rem; }
.step {
  display: flex;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}
.step:hover { background: var(--primary-bg); border-color: var(--primary-border); }
.step-num {
  width: 36px; height: 36px;
  background: var(--bg);
  border: 1.5px solid var(--primary-border);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8125rem;
  font-weight: 800;
  color: var(--primary);
  flex-shrink: 0;
}
.step-body h3 { font-size: 1rem; margin-bottom: .375rem; }
.step-body p  { font-size: .9375rem; color: var(--text-muted); }

/* --- Pricing Cards --- */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.pricing-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  background: var(--bg);
  position: relative;
  transition: all var(--transition);
}
.pricing-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary-border); }
.pricing-card.featured {
  border-color: var(--primary);
  background: var(--primary-bg);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.pricing-month {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: .5rem;
}
.pricing-price {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -.04em;
  line-height: 1;
  margin-bottom: .5rem;
}
.pricing-price .sup { font-size: 1.375rem; vertical-align: super; }
.pricing-free { font-size: 1.625rem; color: var(--green); font-weight: 800; }
.pricing-focus {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}
.pricing-card.featured .pricing-focus { border-color: var(--primary-border); }
.pricing-result {
  font-size: .875rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 1rem;
}

/* --- Tech Tags --- */
.tech-grid { display: flex; flex-wrap: wrap; gap: .625rem; }
.tech-tag {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .375rem .875rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
}
.tech-tag:hover {
  border-color: var(--primary-border);
  color: var(--primary);
  background: var(--primary-bg);
}

/* --- Team cards --- */
.team-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.team-avatar {
  width: 52px; height: 52px;
  background: var(--primary-bg);
  border: 1.5px solid var(--primary-border);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  margin-bottom: 1rem;
}
.team-card h3 { margin-bottom: .375rem; font-size: 1rem; }
.team-card .role-badge {
  font-size: .75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-bg);
  border-radius: var(--radius-sm);
  padding: .2rem .5rem;
  display: inline-block;
  margin-bottom: .75rem;
}

/* --- FAQ --- */
.faq-list { display: flex; flex-direction: column; gap: .5rem; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.open {
  border-color: var(--primary-border);
  box-shadow: 0 0 0 3px rgba(37,99,235,.06);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.125rem 1.5rem;
  text-align: left;
  font-size: .9375rem;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  transition: background var(--transition);
  gap: 1rem;
}
.faq-question:hover { background: var(--surface); }
.faq-icon {
  width: 24px; height: 24px;
  background: var(--surface-2);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1;
  transition: all var(--transition);
}
.faq-item.open .faq-icon {
  background: var(--primary-bg);
  color: var(--primary);
  transform: rotate(45deg);
}
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-muted);
  line-height: 1.75;
  font-size: .9375rem;
}
.faq-item.open .faq-answer { max-height: 500px; }

/* --- Forms --- */
.form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .5rem; }
.form-label { font-size: .875rem; font-weight: 600; color: var(--text); }
.form-input, .form-select, .form-textarea {
  padding: .75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: .9375rem;
  color: var(--text);
  background: var(--bg);
  transition: all var(--transition);
  width: 100%;
  outline: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-light); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-textarea { resize: vertical; min-height: 110px; }
.form-select { appearance: none; cursor: pointer; }

/* --- Table --- */
.table-wrap { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
table { width: 100%; border-collapse: collapse; }
th {
  background: var(--surface);
  padding: .875rem 1.25rem;
  text-align: left;
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
td {
  padding: .875rem 1.25rem;
  border-bottom: 1px solid var(--border-light);
  font-size: .9375rem;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface); }

/* --- CTA section --- */
.cta-section {
  padding: 4rem 0;
  background: var(--primary);
  text-align: center;
  color: #fff;
}
.cta-section h2 { color: #fff; margin-bottom: 1rem; }
.cta-section p { color: rgba(255,255,255,.8); font-size: 1.125rem; max-width: 540px; margin: 0 auto 2rem; }
.cta-section .btn-tg { box-shadow: 0 4px 16px rgba(0,0,0,.25); }
.cta-section .btn-outline-white {
  border-color: rgba(255,255,255,.4);
  color: #fff;
  background: transparent;
}
.cta-section .btn-outline-white:hover {
  background: rgba(255,255,255,.15);
  border-color: rgba(255,255,255,.7);
}

/* --- Blog cards --- */
.blog-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.blog-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary-border); transform: translateY(-2px); }
.blog-card-body { padding: 1.5rem; }
.blog-card-meta { font-size: .75rem; color: var(--text-muted); margin-bottom: .75rem; }
.blog-card h3 { font-size: 1.0625rem; margin-bottom: .5rem; line-height: 1.4; }
.blog-card p { font-size: .875rem; color: var(--text-muted); }
.blog-card-thumb {
  height: 160px;
  background: linear-gradient(135deg, var(--primary-bg) 0%, var(--surface-2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

/* --- Footer --- */
.footer {
  background: #0c1222;
  color: rgba(255,255,255,.6);
  padding: 4.5rem 0 2.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 2rem;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
}
.footer-logo-icon {
  width: 36px; height: 36px;
  background: var(--primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: .8125rem;
  font-weight: 800;
}
.footer-brand-name { font-weight: 800; font-size: .9375rem; color: #fff; letter-spacing: -.01em; }
.footer-desc { font-size: .875rem; line-height: 1.75; margin-bottom: 1.25rem; }
.footer-crypto { display: flex; gap: .5rem; }
.footer-crypto-tag {
  padding: .2rem .625rem;
  background: rgba(255,255,255,.08);
  border-radius: var(--radius-sm);
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: rgba(255,255,255,.5);
}
.footer-col h4 {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
  margin-bottom: 1rem;
}
.footer-links { display: flex; flex-direction: column; gap: .5rem; }
.footer-link { font-size: .875rem; color: rgba(255,255,255,.55); transition: color var(--transition); }
.footer-link:hover { color: #fff; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: .8125rem;
  color: rgba(255,255,255,.3);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 440px; }
}
@media (max-width: 768px) {
  :root { --nav-height: 60px; }
  .nav-links { display: none; }
  .nav-actions .btn:not(.nav-cta) { display: none; }
  .nav-hamburger { display: flex; }

  .hero { padding: 4rem 0 3.5rem; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 3.5rem 0; }
  .section-lg { padding: 4.5rem 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-section .flex { flex-direction: column; }
}
@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  h1 { font-size: 1.75rem; }
  .hero-stat-value { font-size: 1.5rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}

/* --- Animations --- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .5s ease both; }
.delay-1 { animation-delay: .1s; }
.delay-2 { animation-delay: .2s; }
.delay-3 { animation-delay: .3s; }
.delay-4 { animation-delay: .4s; }