/* ==========================================================================
   PAL4C Labs — Design System
   Brand: #1ce1b4 (accent) / #000000 / #ffffff — Inter typeface
   ========================================================================== */

:root {
  --accent: #1ce1b4;
  --accent-dim: #14b391;
  --ink: #000000;
  --paper: #ffffff;
  --ink-soft: #0a0a0a;
  --panel-dark: #0c0d0d;
  --panel-dark-2: #131515;
  --line-dark: rgba(255,255,255,0.12);
  --line-light: rgba(0,0,0,0.10);
  --text-on-dark: #f5f6f6;
  --text-on-dark-muted: rgba(245,246,246,0.66);
  --text-on-light: #0a0a0a;
  --text-on-light-muted: rgba(10,10,10,0.62);
  --gray-50: #fafafa;
  --gray-100: #f4f5f5;
  --gray-200: #e9eaea;

  --container: 1280px;
  --container-narrow: 860px;
  --gutter: clamp(20px, 5vw, 64px);
  --section-y: clamp(64px, 10vw, 140px);
  --section-y-sm: clamp(48px, 6vw, 88px);
  --radius: 14px;
  --radius-sm: 8px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---- Reset-ish base ---- */
.pal4c * { box-sizing: border-box; }
.pal4c { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; }
.pal4c img { max-width: 100%; display: block; }
.pal4c a { text-decoration: none; color: inherit; }

body.pal4c-site { background: var(--paper); }
body.pal4c-site .wp-block-post-content > * { max-width: none; }

/* ---- Typography ---- */
.pal4c h1, .pal4c h2, .pal4c h3, .pal4c h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
}
.pal4c .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dim);
  margin: 0 0 18px;
}
.pal4c .eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}
.pal4c .h-hero { font-size: clamp(40px, 6.2vw, 84px); }
.pal4c .h-xl { font-size: clamp(32px, 4.4vw, 56px); }
.pal4c .h-lg { font-size: clamp(26px, 3vw, 40px); }
.pal4c .h-md { font-size: clamp(20px, 2vw, 26px); font-weight: 700; }
.pal4c .h-sm { font-size: 18px; font-weight: 700; }
.pal4c p.lead {
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.55;
  font-weight: 400;
}
.pal4c p.body-copy, .pal4c .prose p {
  font-size: 16.5px;
  line-height: 1.7;
  font-weight: 400;
}
.pal4c .text-muted-dark { color: var(--text-on-dark-muted); }
.pal4c .text-muted-light { color: var(--text-on-light-muted); }
.pal4c .text-on-dark { color: var(--text-on-dark); }
.pal4c .text-on-light { color: var(--text-on-light); }
.pal4c .text-accent { color: var(--accent); }
.pal4c .text-center { text-align: center; }

/* ---- Layout ---- */
.pal4c .container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.pal4c .container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.pal4c .section { padding-top: var(--section-y); padding-bottom: var(--section-y); }
.pal4c .section-sm { padding-top: var(--section-y-sm); padding-bottom: var(--section-y-sm); }
.pal4c .section-tight-top { padding-top: 0; }
.pal4c .bg-dark { background: var(--panel-dark); }
.pal4c .bg-dark-2 { background: var(--panel-dark-2); }
.pal4c .bg-black { background: var(--ink); }
.pal4c .bg-light { background: var(--gray-50); }
.pal4c .bg-white { background: var(--paper); }

.pal4c .stack { display: flex; flex-direction: column; }
.pal4c .row { display: flex; flex-wrap: wrap; align-items: center; }
.pal4c .row.gap-sm { gap: 12px; }
.pal4c .row.gap-md { gap: 20px; }
.pal4c .between { justify-content: space-between; }
.pal4c .center { justify-content: center; align-items: center; }

.pal4c .grid { display: grid; gap: clamp(18px, 2.4vw, 32px); }
.pal4c .grid-2 { grid-template-columns: repeat(2, 1fr); }
.pal4c .grid-3 { grid-template-columns: repeat(3, 1fr); }
.pal4c .grid-4 { grid-template-columns: repeat(4, 1fr); }
.pal4c .grid-6 { grid-template-columns: repeat(6, 1fr); }
@media (max-width: 980px) {
  .pal4c .grid-3, .pal4c .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .pal4c .grid-6 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .pal4c .grid-2, .pal4c .grid-3, .pal4c .grid-4, .pal4c .grid-6 { grid-template-columns: 1fr; }
  .pal4c .section { padding-top: var(--section-y-sm); padding-bottom: var(--section-y-sm); }
}

/* ---- Buttons ---- */
.pal4c .btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
  border: 1.5px solid transparent;
  transition: transform 0.35s var(--ease), background-color 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
  white-space: nowrap;
}
.pal4c .btn:hover { transform: translateY(-2px); }
.pal4c .btn-accent { background: var(--accent); color: var(--ink); }
.pal4c .btn-accent:hover { background: var(--paper); }
.pal4c .btn-outline-dark { border-color: var(--line-dark); color: var(--text-on-dark); }
.pal4c .btn-outline-dark:hover { border-color: var(--accent); color: var(--accent); }
.pal4c .btn-outline-light { border-color: var(--line-light); color: var(--text-on-light); }
.pal4c .btn-outline-light:hover { border-color: var(--ink); }
.pal4c .btn-ghost-dark { color: var(--text-on-dark); padding-left: 4px; padding-right: 4px; border-radius: 0; }
.pal4c .btn-ghost-dark::after { content: "\2192"; margin-left: 8px; transition: transform 0.3s var(--ease); display: inline-block; }
.pal4c .btn-ghost-dark:hover::after { transform: translateX(4px); }
.pal4c .btn-arrow::after { content: "\2192"; margin-left: 2px; }

/* ---- Cards ---- */
.pal4c .card {
  border-radius: var(--radius);
  padding: clamp(24px, 2.6vw, 36px);
  border: 1px solid var(--line-light);
  background: var(--paper);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.pal4c .card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 20px 48px rgba(0,0,0,0.08); }
.pal4c .card-dark {
  border-radius: var(--radius);
  padding: clamp(24px, 2.6vw, 36px);
  border: 1px solid var(--line-dark);
  background: var(--panel-dark-2);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}
.pal4c .card-dark:hover { transform: translateY(-4px); border-color: var(--accent); }
.pal4c .card-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(28,225,180,0.12);
  color: var(--accent-dim);
  margin-bottom: 20px;
  font-weight: 800;
  font-size: 18px;
}
.pal4c .card-dark .card-icon { color: var(--accent); }

/* ---- Nav / Header ---- */
.pal4c-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(0,0,0,0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-dark);
}
.pal4c-header .bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
}
.pal4c-logo { font-weight: 800; font-size: 19px; letter-spacing: -0.02em; color: var(--paper); }
.pal4c-logo .dot { color: var(--accent); }
.pal4c-nav { display: flex; align-items: center; gap: 30px; }
.pal4c-nav a.nav-link {
  font-size: 14.5px; font-weight: 600; color: var(--text-on-dark-muted);
  transition: color 0.25s var(--ease);
}
.pal4c-nav a.nav-link:hover { color: var(--paper); }
.pal4c-nav-links { display: flex; gap: 26px; align-items: center; }
.pal4c-burger { display: none; }
@media (max-width: 900px) {
  .pal4c-nav-links { display: none; }
  .pal4c-nav-links.is-open {
    display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
    position: absolute; top: 100%; left: 0; right: 0; background: var(--ink);
    border-bottom: 1px solid var(--line-dark); padding: 10px var(--gutter) 20px;
  }
  .pal4c-burger { display: block; color: var(--paper); font-weight: 700; font-size: 14px; background: none; border: none; cursor: pointer; }
}

/* ---- Mega-menu dropdowns ---- */
.pal4c-has-dropdown { position: relative; }
.pal4c-has-dropdown > .nav-link {
  display: inline-flex !important; align-items: center; gap: 6px; cursor: pointer;
  background: transparent !important; background-color: transparent !important;
  border: none !important; box-shadow: none !important; appearance: none !important;
  -webkit-appearance: none !important; margin: 0 !important; padding: 0 !important;
  border-radius: 0 !important; text-transform: none !important; letter-spacing: normal !important;
  font-family: 'Inter', sans-serif !important; font-size: 14.5px !important; font-weight: 600 !important;
  color: var(--text-on-dark-muted) !important; line-height: normal !important;
}
.pal4c-has-dropdown > .nav-link:hover { color: var(--paper) !important; }
.pal4c-has-dropdown > .nav-link::after { content: ""; width: 7px; height: 7px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg); margin-top: -3px; transition: transform 0.25s var(--ease); opacity: 0.7; }
.pal4c-has-dropdown[aria-expanded="true"] > .nav-link::after,
.pal4c-has-dropdown:hover > .nav-link::after { transform: rotate(225deg); margin-top: 3px; }
.pal4c-dropdown-panel {
  position: absolute; top: calc(100% + 18px); left: 50%; transform: translateX(-50%) translateY(6px);
  min-width: 300px; background: var(--panel-dark-2); border: 1px solid var(--line-dark);
  border-radius: var(--radius); padding: 14px; box-shadow: 0 24px 60px rgba(0,0,0,0.45);
  opacity: 0; pointer-events: none; transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  display: grid; grid-template-columns: 1fr 1fr; gap: 2px;
}
.pal4c-has-dropdown:hover .pal4c-dropdown-panel,
.pal4c-has-dropdown[aria-expanded="true"] .pal4c-dropdown-panel {
  opacity: 1; pointer-events: auto; transform: translateX(-50%) translateY(0);
}
.pal4c-dropdown-panel a {
  display: block; padding: 10px 12px; border-radius: 8px; font-size: 14px; font-weight: 600;
  color: var(--text-on-dark-muted); transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}
.pal4c-dropdown-panel a:hover { background: rgba(28,225,180,0.1); color: var(--paper); }
.pal4c-dropdown-panel a.view-all { grid-column: 1 / -1; color: var(--accent); border-top: 1px solid var(--line-dark); margin-top: 6px; padding-top: 14px; border-radius: 0; }
@media (max-width: 900px) {
  .pal4c-dropdown-panel { position: static; transform: none; opacity: 1; pointer-events: auto; display: none; grid-template-columns: 1fr; box-shadow: none; border: none; background: transparent; padding: 4px 0 4px 14px; min-width: 0; }
  .pal4c-has-dropdown[aria-expanded="true"] .pal4c-dropdown-panel { display: grid; }
  .pal4c-has-dropdown > .nav-link { width: 100%; justify-content: space-between; padding: 10px 0; }
}

/* ---- Footer ---- */
.pal4c-footer { background: var(--ink); color: var(--text-on-dark); padding: 80px var(--gutter) 32px; }
.pal4c-footer .foot-grid {
  max-width: var(--container); margin: 0 auto;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 32px;
  padding-bottom: 56px; border-bottom: 1px solid var(--line-dark);
}
@media (max-width: 900px) { .pal4c-footer .foot-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .pal4c-footer .foot-grid { grid-template-columns: 1fr; } }
.pal4c-footer h4.col-title { font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-on-dark-muted); margin: 0 0 18px; font-weight: 700; }
.pal4c-footer .col-links { display: flex; flex-direction: column; gap: 12px; }
.pal4c-footer .col-links a { font-size: 14.5px; color: var(--text-on-dark); transition: color 0.25s var(--ease); }
.pal4c-footer .col-links a:hover { color: var(--accent); }
.pal4c-footer .bottom-row {
  max-width: var(--container); margin: 0 auto; padding-top: 28px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: var(--text-on-dark-muted);
}

/* ---- FAQ (native details/summary, zero-JS accessible accordion) ---- */
.pal4c .faq-item { border-bottom: 1px solid var(--line-light); padding: 22px 0; }
.pal4c .faq-item summary {
  cursor: pointer; list-style: none; font-weight: 700; font-size: 17px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.pal4c .faq-item summary::-webkit-details-marker { display: none; }
.pal4c .faq-item summary::after { content: "+"; font-size: 22px; font-weight: 400; color: var(--accent-dim); flex: none; transition: transform 0.3s var(--ease); }
.pal4c .faq-item[open] summary::after { transform: rotate(45deg); }
.pal4c .faq-item .faq-a { padding-top: 14px; font-size: 15.5px; line-height: 1.7; color: var(--text-on-light-muted); max-width: 760px; }
.pal4c .faq-item-dark { border-bottom: 1px solid var(--line-dark); }
.pal4c .faq-item-dark summary { color: var(--text-on-dark); }
.pal4c .faq-item-dark .faq-a { color: var(--text-on-dark-muted); }

/* ---- Stats / metrics ---- */
.pal4c .stat-num { font-size: clamp(32px, 3.2vw, 48px); font-weight: 800; letter-spacing: -0.02em; }
.pal4c .stat-label { font-size: 13.5px; color: var(--text-on-dark-muted); margin-top: 6px; }

/* ---- Pills / tags ---- */
.pal4c .pill {
  display: inline-flex; padding: 7px 14px; border-radius: 999px;
  font-size: 12.5px; font-weight: 700; border: 1px solid var(--line-light);
  color: var(--text-on-light-muted);
}
.pal4c .pill-dark { border-color: var(--line-dark); color: var(--text-on-dark-muted); }

/* ---- Divider ---- */
.pal4c .rule-dark { border: none; border-top: 1px solid var(--line-dark); margin: 0; }
.pal4c .rule-light { border: none; border-top: 1px solid var(--line-light); margin: 0; }

/* ---- Hero glow ---- */
.pal4c .glow-bg { position: relative; overflow: hidden; }
.pal4c .glow-bg::before {
  content: "";
  position: absolute; top: -20%; right: -10%;
  width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(28,225,180,0.16) 0%, rgba(28,225,180,0) 70%);
  pointer-events: none;
}

/* ---- Scroll reveal ---- */
.pal4c .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.pal4c .reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .pal4c .reveal { opacity: 1; transform: none; transition: none; }
  .pal4c .btn:hover, .pal4c .card:hover, .pal4c .card-dark:hover { transform: none; }
}

/* ---- Utility spacing ---- */
.pal4c .mt-0 { margin-top: 0; } .pal4c .mt-sm { margin-top: 14px; } .pal4c .mt-md { margin-top: 28px; } .pal4c .mt-lg { margin-top: 48px; }
.pal4c .mb-sm { margin-bottom: 14px; } .pal4c .mb-md { margin-bottom: 28px; } .pal4c .mb-lg { margin-bottom: 48px; }
.pal4c .max-w-sm { max-width: 480px; } .pal4c .max-w-md { max-width: 640px; } .pal4c .max-w-lg { max-width: 820px; }

/* ---- Breadcrumb ---- */
.pal4c .breadcrumb { font-size: 13px; color: var(--text-on-dark-muted); }
.pal4c .breadcrumb a:hover { color: var(--accent); }

/* Hide the theme's default page title banner where our page.html override still leaves a hook */
.hostinger-ai-page-title { display: none; }

/* ---- Contact Form 7 ---- */
.pal4c .pal4c-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 640px) { .pal4c .pal4c-form-row { grid-template-columns: 1fr; } }
.pal4c .wpcf7-form p { margin: 0 0 18px; }
.pal4c .wpcf7-form input[type="text"],
.pal4c .wpcf7-form input[type="email"],
.pal4c .wpcf7-form input[type="tel"],
.pal4c .wpcf7-form select,
.pal4c .wpcf7-form textarea {
  width: 100%;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  padding: 15px 18px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--line-light);
  background: var(--paper);
  color: var(--text-on-light);
  transition: border-color 0.25s var(--ease);
}
.pal4c .wpcf7-form textarea { min-height: 140px; resize: vertical; }
.pal4c .wpcf7-form input:focus,
.pal4c .wpcf7-form select:focus,
.pal4c .wpcf7-form textarea:focus { outline: none; border-color: var(--accent); }
.pal4c .wpcf7-form .wpcf7-submit {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 30px; border-radius: 999px; border: none;
  background: var(--accent); color: var(--ink);
  font-family: 'Inter', sans-serif; font-weight: 700; font-size: 15px;
  cursor: pointer; transition: transform 0.3s var(--ease), background-color 0.3s var(--ease);
}
.pal4c .wpcf7-form .wpcf7-submit:hover { transform: translateY(-2px); background: var(--paper); }
.pal4c .wpcf7-form .wpcf7-spinner { margin-left: 12px; }
.pal4c .wpcf7-not-valid-tip { color: #ff6b6b; font-size: 13px; margin-top: 6px; }
.pal4c .wpcf7-response-output {
  margin-top: 20px !important; padding: 14px 18px !important;
  border-radius: var(--radius-sm); border: 1.5px solid var(--line-light) !important;
  font-size: 14.5px;
}
.pal4c-dark-form .wpcf7-form input[type="text"],
.pal4c-dark-form .wpcf7-form input[type="email"],
.pal4c-dark-form .wpcf7-form input[type="tel"],
.pal4c-dark-form .wpcf7-form select,
.pal4c-dark-form .wpcf7-form textarea {
  background: var(--panel-dark-2); border-color: var(--line-dark); color: var(--text-on-dark);
}
.pal4c-dark-form .wpcf7-response-output { border-color: var(--line-dark) !important; color: var(--text-on-dark); }

/* ---- Newsletter inline form ---- */
.pal4c .pal4c-newsletter-row { display: flex; gap: 12px; flex-wrap: wrap; }
.pal4c .pal4c-newsletter-row input[type="email"] { flex: 1 1 280px; }
.pal4c .wpcf7-acceptance { display: block; margin-top: 12px; font-size: 13px; color: var(--text-on-dark-muted); }
.pal4c .wpcf7-list-item { margin: 0; }

/* ---- Numbered service list (unit8-style) ---- */
.pal4c .num-list { border-top: 1px solid var(--line-light); }
.pal4c .num-list.on-dark { border-top-color: var(--line-dark); }
.pal4c .num-item {
  display: grid; grid-template-columns: 90px 1fr auto; gap: 28px; align-items: start;
  padding: 34px 0; border-bottom: 1px solid var(--line-light);
  transition: background-color 0.3s var(--ease);
}
.pal4c .num-list.on-dark .num-item { border-bottom-color: var(--line-dark); }
.pal4c .num-item:hover { background: rgba(28,225,180,0.04); }
.pal4c .num-item .num { font-size: 15px; font-weight: 700; color: var(--accent-dim); font-variant-numeric: tabular-nums; padding-top: 4px; }
.pal4c .num-item h3 { font-size: clamp(19px, 2vw, 24px); font-weight: 700; margin-bottom: 8px; }
.pal4c .num-item p { font-size: 15px; line-height: 1.65; max-width: 620px; }
.pal4c .num-item .num-arrow { font-size: 22px; color: var(--accent); align-self: center; transition: transform 0.3s var(--ease); }
.pal4c .num-item:hover .num-arrow { transform: translateX(6px); }
@media (max-width: 720px) {
  .pal4c .num-item { grid-template-columns: 44px 1fr; }
  .pal4c .num-item .num-arrow { display: none; }
}

/* ---- Case study filter tabs ---- */
.pal4c .cs-filters { margin: 36px 0 8px; display: flex; flex-direction: column; gap: 16px; }
.pal4c .cs-filter-group-label { font-size: 12.5px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-on-dark-muted); margin-bottom: 10px; display: block; }
.pal4c .cs-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin: 36px 0 8px; }
.pal4c .cs-tab {
  padding: 10px 18px; border-radius: 999px; font-size: 13.5px; font-weight: 700;
  border: 1.5px solid var(--line-dark); color: var(--text-on-dark-muted);
  background: none; cursor: pointer; transition: all 0.25s var(--ease); font-family: 'Inter', sans-serif;
}
.pal4c .cs-tab:hover { border-color: var(--accent); color: var(--paper); }
.pal4c .cs-tab.is-active { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.pal4c .cs-card { display: block; transition: opacity 0.3s var(--ease), transform 0.3s var(--ease); }
.pal4c .cs-card.is-hidden { display: none; }

/* ---- Featured block (image-less, text-forward) ---- */
.pal4c .featured-block { border: 1px solid var(--line-dark); border-radius: var(--radius); padding: clamp(32px,4vw,64px); background: linear-gradient(160deg, var(--panel-dark-2), var(--panel-dark)); }

/* ---- Asymmetric layout grids (responsive) ---- */
.pal4c .grid-asym-60-40 { grid-template-columns: 1.5fr 1fr; }
.pal4c .grid-asym-40-60 { grid-template-columns: 1fr 1.4fr; }
@media (max-width: 900px) {
  .pal4c .grid-asym-60-40,
  .pal4c .grid-asym-40-60 { grid-template-columns: 1fr; }
}