/* ─────────────────────────────────────────────────────────────────────────────
   Yariel Gordillo Portfolio — main.css
   Mobile-first responsive stylesheet. Uses CSS custom properties.
   Edit the :root variables to change the color scheme site-wide.
   ───────────────────────────────────────────────────────────────────────────── */

/* ── VARIABLES ─────────────────────────────────────────────────────────────── */
:root {
  --color-bg-dark:     #0b0f1e;
  --color-bg-dark-2:   #111827;
  --color-bg-light:    #f5f7fc;
  --color-bg-white:    #ffffff;
  --color-text:        #1a1f36;
  --color-text-light:  #e2e8f7;
  --color-muted:       #6b7280;
  --color-muted-light: #9ca3af;
  --color-primary:     #6366f1;
  --color-primary-h:   #4f46e5;
  --color-secondary:   #06b6d4;
  --color-secondary-h: #0891b2;
  --color-card:        #ffffff;
  --color-card-dark:   #131929;
  --color-border:      #e5e7eb;
  --color-border-dark: #1e2a44;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.14), 0 4px 12px rgba(0,0,0,.08);

  --transition: 200ms ease;

  --font-body:    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono:    'Courier New', Courier, monospace;
}

/* ── RESET & BASE ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg-white);
  -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; font-family: inherit; }

/* ── TYPOGRAPHY ────────────────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }
h4 { font-size: 1rem; font-weight: 700; }

p { max-width: 68ch; }

/* ── LAYOUT HELPERS ────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding-block: 5rem;
}

.section-dark {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
}
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-text-light);
}

.section-light {
  background: var(--color-bg-light);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(99,102,241,.1);
  border: 1px solid rgba(99,102,241,.2);
  border-radius: 999px;
  padding: 0.25rem 0.85rem;
  margin-bottom: 1rem;
}

.section-header {
  max-width: 680px;
  margin-bottom: 3rem;
}

.section-header p {
  color: var(--color-muted);
  font-size: 1.1rem;
  margin-top: 0.75rem;
}

.section-dark .section-header p { color: var(--color-muted-light); }

/* ── BUTTONS ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  line-height: 1;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--color-primary-h);
  border-color: var(--color-primary-h);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99,102,241,.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-light);
  border-color: rgba(255,255,255,.3);
}
.btn-outline:hover, .btn-outline:focus-visible {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.5);
  transform: translateY(-1px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline-dark:hover, .btn-outline-dark:focus-visible {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1px);
}

.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.875rem; }

/* ── TAGS / PILLS ──────────────────────────────────────────────────────────── */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}

.tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: rgba(99,102,241,.08);
  color: var(--color-primary);
  border: 1px solid rgba(99,102,241,.18);
  white-space: nowrap;
}

.tag-cyan {
  background: rgba(6,182,212,.08);
  color: var(--color-secondary);
  border-color: rgba(6,182,212,.2);
}

/* ── HEADER ────────────────────────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.site-header.scrolled {
  background: rgba(11,15,30,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255,255,255,.06), 0 4px 24px rgba(0,0,0,.3);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-block: 1rem;
}

/* Logo */
.site-logo {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-name {
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.logo-role {
  font-size: 0.65rem;
  font-weight: 500;
  color: rgba(255,255,255,.5);
  letter-spacing: 0.02em;
  line-height: 1;
}

/* Nav */
.site-nav { margin-left: auto; }

.nav-list {
  display: none;
  gap: 0;
}

.nav-list a {
  display: block;
  padding: 0.5rem 0.9rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,.75);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-list a:hover, .nav-list a:focus-visible {
  color: #fff;
  background: rgba(255,255,255,.07);
}

.nav-cta { margin-left: auto; flex-shrink: 0; }

/* Mobile toggle */
.nav-toggle {
  background: none;
  border: none;
  padding: 0.4rem;
  color: #fff;
  display: flex;
  align-items: center;
  margin-left: 0.5rem;
}
.nav-toggle svg { width: 1.5rem; height: 1.5rem; }

.nav-toggle-close { display: none; }

.nav-toggle[aria-expanded="true"] .nav-toggle-open  { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle-close { display: block; }

/* Mobile nav open state — full-screen solid overlay */
.site-nav.is-open .nav-list {
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0;          /* covers the full viewport */
  z-index: 999;      /* below header (1000) so the close button stays tappable */
  background: #0b0f1e;
  padding: 5rem 1.5rem 2rem; /* top padding clears the header bar */
  gap: 0.25rem;
  overflow-y: auto;
  animation: slideDown 200ms ease;
}

.site-nav.is-open .nav-list a {
  font-size: 1.1rem;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  color: rgba(255,255,255,.85);
}
.site-nav.is-open .nav-list a:hover,
.site-nav.is-open .nav-list a:focus-visible {
  background: rgba(255,255,255,.07);
  color: #fff;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── HERO ──────────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--color-bg-dark);
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
          radial-gradient(ellipse 80% 60% at 60% 20%, rgba(99,102,241,.18) 0%, transparent 60%),
          radial-gradient(ellipse 50% 40% at 10% 80%, rgba(6,182,212,.10) 0%, transparent 60%);
  pointer-events: none;
}

/* Subtle dot grid */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-block: 4rem;
  max-width: 820px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
}
.hero-eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--color-secondary);
  display: inline-block;
}

.hero h1 {
  color: #fff;
  background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,.75) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,.75);
  max-width: 60ch;
  margin-bottom: 0.75rem;
}

.hero-support {
  font-size: 0.95rem;
  color: rgba(255,255,255,.45);
  max-width: 55ch;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3.5rem;
}

/* Trust badges */
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

.trust-badge {
  font-size: 0.78rem;
  font-weight: 700;
  color: rgba(255,255,255,.65);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* ── VALUE / POSITIONING ───────────────────────────────────────────────────── */
.value-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.value-text h2 { margin-bottom: 1rem; }
.value-text p { color: var(--color-muted); font-size: 1.05rem; }

.value-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.value-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.value-card:hover {
  border-color: rgba(99,102,241,.3);
  box-shadow: var(--shadow-md);
}
.value-card-num {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.value-card h4 { margin-bottom: 0.35rem; }
.value-card p { font-size: 0.875rem; color: var(--color-muted); max-width: none; }

/* ── SERVICES ──────────────────────────────────────────────────────────────── */
.services-grid {
  display: grid;
  gap: 1.25rem;
}

.service-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.service-card:hover {
  border-color: rgba(99,102,241,.35);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.service-icon {
  width: 2.75rem;
  height: 2.75rem;
  background: rgba(99,102,241,.1);
  border: 1px solid rgba(99,102,241,.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.1rem;
  color: var(--color-primary);
}
.service-icon svg { width: 1.25rem; height: 1.25rem; }

.service-card h3 { margin-bottom: 0.6rem; color: var(--color-text); }
.service-card > p { font-size: 0.925rem; color: var(--color-muted); max-width: none; }

/* ── CASE STUDIES ──────────────────────────────────────────────────────────── */
.case-studies-grid {
  display: grid;
  gap: 1.5rem;
}

.case-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.case-card:hover {
  border-color: rgba(6,182,212,.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.case-type-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-secondary);
  background: rgba(6,182,212,.1);
  border: 1px solid rgba(6,182,212,.2);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  margin-bottom: 0.75rem;
}

.case-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
  color: var(--color-text);
}
.case-subtitle {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}

.case-details { display: grid; gap: 0.85rem; }

.case-detail-row { display: grid; gap: 0.15rem; }

.case-detail-label {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.case-detail-text {
  font-size: 0.9rem;
  color: var(--color-muted);
  max-width: none;
  line-height: 1.6;
}

/* ── AI ADVANTAGE ──────────────────────────────────────────────────────────── */
.ai-intro {
  max-width: 720px;
  font-size: 1.05rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 3rem;
  line-height: 1.8;
}

.ai-grid-label {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}

.ai-uses-label   { color: var(--color-secondary); }
.ai-limits-label { color: rgba(255,255,255,.4); }

.ai-cards {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.ai-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  transition: background var(--transition), border-color var(--transition);
}
.ai-card:hover {
  background: rgba(255,255,255,.07);
  border-color: rgba(255,255,255,.12);
}

.ai-card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 0.45rem;
  flex-shrink: 0;
}
.ai-card-dot.cyan  { background: var(--color-secondary); }
.ai-card-dot.muted { background: rgba(255,255,255,.25); }

.ai-card p {
  font-size: 0.9rem;
  color: rgba(255,255,255,.7);
  max-width: none;
  line-height: 1.6;
}

.ai-closing {
  margin-top: 3rem;
  padding: 2rem;
  background: rgba(99,102,241,.1);
  border: 1px solid rgba(99,102,241,.2);
  border-radius: var(--radius-lg);
  max-width: 720px;
}
.ai-closing p {
  font-size: 1rem;
  color: rgba(255,255,255,.8);
  max-width: none;
  line-height: 1.8;
  font-style: italic;
}
.ai-closing strong { color: #fff; font-style: normal; }

/* ── SKILLS ────────────────────────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  gap: 1.25rem;
}

.skill-group {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: border-color var(--transition);
}
.skill-group:hover { border-color: rgba(99,102,241,.3); }

.skill-group-title {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-pill {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
}
.skill-pill:hover {
  background: rgba(99,102,241,.08);
  border-color: rgba(99,102,241,.25);
  color: var(--color-primary);
}

/* ── PROCESS ───────────────────────────────────────────────────────────────── */
.process-grid {
  display: grid;
  gap: 1.25rem;
}

.process-step {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.process-step:hover {
  border-color: rgba(99,102,241,.35);
  box-shadow: var(--shadow-md);
}

.process-num {
  font-size: 1.75rem;
  font-weight: 900;
  color: rgba(99,102,241,.25);
  line-height: 1;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  min-width: 2.5rem;
}

.process-body h3 { margin-bottom: 0.35rem; font-size: 1.05rem; }
.process-body p { font-size: 0.9rem; color: var(--color-muted); max-width: none; }

/* ── OUTCOMES ──────────────────────────────────────────────────────────────── */
.outcomes-grid {
  display: grid;
  gap: 0.85rem;
}

.outcome-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.outcome-card:hover {
  border-color: rgba(99,102,241,.3);
  box-shadow: var(--shadow-sm);
}

.outcome-icon {
  width: 2rem;
  height: 2rem;
  background: rgba(99,102,241,.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}
.outcome-icon svg { width: 0.85rem; height: 0.85rem; }

.outcome-card p {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  max-width: none;
}

/* ── ABOUT ─────────────────────────────────────────────────────────────────── */
.about-inner {
  display: grid;
  gap: 3rem;
}

.about-text h2 { margin-bottom: 1.5rem; color: #fff; }

.about-text p {
  color: rgba(255,255,255,.7);
  font-size: 1rem;
  line-height: 1.85;
  max-width: 65ch;
}
.about-text p + p { margin-top: 1rem; }

.about-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

.about-highlights {
  display: grid;
  gap: 1rem;
}

.about-highlight {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.about-highlight h4 { color: var(--color-secondary); margin-bottom: 0.25rem; font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; }
.about-highlight p { font-size: 0.9rem; color: rgba(255,255,255,.6); max-width: none; }

/* ── CONTACT ───────────────────────────────────────────────────────────────── */
.contact-inner {
  display: grid;
  gap: 3rem;
  align-items: start;
}

.contact-intro h2 { margin-bottom: 1rem; }
.contact-intro > p { font-size: 1.05rem; color: var(--color-muted); max-width: 50ch; }

.contact-social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}
.social-link:hover {
  background: rgba(99,102,241,.08);
  border-color: rgba(99,102,241,.3);
  color: var(--color-primary);
  transform: translateY(-1px);
}
.social-link .social-icon { width: 1rem; height: 1rem; }

/* Contact form */
.contact-form-wrap {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text);
}
.form-group label span { color: var(--color-primary); }

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,.12);
}

.form-group textarea { resize: vertical; min-height: 130px; }

.form-row { display: grid; gap: 1rem; }

#form-feedback {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  display: none;
}
#form-feedback.success {
  background: rgba(16,185,129,.1);
  color: #065f46;
  border: 1px solid rgba(16,185,129,.25);
  display: block;
}
#form-feedback.error {
  background: rgba(239,68,68,.08);
  color: #991b1b;
  border: 1px solid rgba(239,68,68,.2);
  display: block;
}

.recaptcha-notice {
  margin-top: 0.75rem;
  font-size: 0.72rem;
  color: var(--color-muted);
  line-height: 1.4;
}
.recaptcha-notice a { color: inherit; text-decoration: underline; }
.recaptcha-notice a:hover { color: var(--color-primary); }

/* ── INSIGHTS ──────────────────────────────────────────────────────────────── */
.insights-grid {
  display: grid;
  gap: 1.25rem;
}

.insight-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.insight-card:hover {
  border-color: rgba(99,102,241,.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.insight-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

.insight-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  line-height: 1.4;
}

.insight-card p { font-size: 0.875rem; color: var(--color-muted); max-width: none; line-height: 1.65; }

/* ── FOOTER ────────────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-bg-dark);
  border-top: 1px solid var(--color-border-dark);
  padding-block: 3.5rem 2rem;
}

.footer-inner {
  display: grid;
  gap: 2rem;
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  display: block;
  margin-bottom: 0.5rem;
  text-decoration: none;
}

.footer-tagline {
  font-size: 0.875rem;
  color: rgba(255,255,255,.5);
  max-width: none;
}
.footer-tagline-sub {
  font-size: 0.8rem;
  color: rgba(255,255,255,.3);
  margin-top: 0.2rem;
  max-width: none;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}
.footer-nav a {
  font-size: 0.875rem;
  color: rgba(255,255,255,.5);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.footer-nav a:hover { color: #fff; }

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.825rem;
  color: rgba(255,255,255,.5);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,.08);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.footer-social a:hover {
  color: #fff;
  border-color: rgba(255,255,255,.2);
  background: rgba(255,255,255,.05);
}
.footer-social .social-icon { width: 1rem; height: 1rem; }

.footer-copy {
  font-size: 0.8rem;
  color: rgba(255,255,255,.25);
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 1.5rem;
  max-width: none;
}

/* ── ACCESSIBILITY ─────────────────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 3px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Skip-to-content */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 700;
  z-index: 9999;
}
.skip-link:focus { top: 0; }

/* ── RESPONSIVE — TABLET (640px+) ──────────────────────────────────────────── */
@media (min-width: 640px) {

  .nav-list { display: flex; align-items: center; }
  .nav-toggle { display: none; }
  .nav-cta { margin-left: 0.75rem; }
  .nav-cta-mobile { display: none; } /* injected by JS — desktop only shows the header CTA */

  .value-grid { grid-template-columns: 1fr 1fr; }

  .services-grid { grid-template-columns: 1fr 1fr; }

  .case-studies-grid { grid-template-columns: 1fr 1fr; }

  .ai-cards { grid-template-columns: 1fr 1fr; }

  .skills-grid { grid-template-columns: 1fr 1fr; }

  .process-grid { grid-template-columns: 1fr 1fr; }

  .outcomes-grid { grid-template-columns: 1fr 1fr; }

  .insights-grid { grid-template-columns: 1fr 1fr; }

  .contact-inner { grid-template-columns: 1fr 1.2fr; }

  .about-inner { grid-template-columns: 1.4fr 1fr; }

  .footer-inner { grid-template-columns: 1fr 1fr; }

  .form-row { grid-template-columns: 1fr 1fr; }
}

/* ── RESPONSIVE — DESKTOP (1024px+) ───────────────────────────────────────── */
@media (min-width: 1024px) {

  .services-grid { grid-template-columns: repeat(3, 1fr); }

  .case-studies-grid { grid-template-columns: repeat(3, 1fr); }

  .ai-cards { grid-template-columns: repeat(4, 1fr); }

  .ai-limits-cards { grid-template-columns: repeat(3, 1fr); }

  .skills-grid { grid-template-columns: repeat(3, 1fr); }

  .process-grid { grid-template-columns: repeat(3, 1fr); }

  .outcomes-grid { grid-template-columns: repeat(4, 1fr); }

  .insights-grid { grid-template-columns: repeat(3, 1fr); }

  .footer-inner { grid-template-columns: 2fr 1fr 1fr; }

  .footer-copy { grid-column: 1 / -1; }
}

/* ── PRINT ─────────────────────────────────────────────────────────────────── */
@media print {
  .site-header, .hero, .nav-toggle, .btn { display: none; }
  body { color: #000; }
}

/* ═══════════════════════════════════════════════════════════════════════════════
   DYNAMIC / CPT ADDITIONS
   ═══════════════════════════════════════════════════════════════════════════════ */

/* ── HEADER: PROFILE PHOTO ─────────────────────────────────────────────────── */
.profile-photo {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 2px solid rgba(255,255,255,.2);
  flex-shrink: 0;
  transition: border-color var(--transition);
}
.site-logo:hover .profile-photo { border-color: rgba(255,255,255,.5); }

.logo-text { display: flex; flex-direction: column; gap: 0; }

/* ── CASE CARD: FEATURED IMAGE ─────────────────────────────────────────────── */
.case-img-wrap {
  margin: -2rem -2rem 1.5rem -2rem;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  overflow: hidden;
  background: var(--color-bg-light);
  flex-shrink: 0;
}
.case-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  transition: transform 400ms ease;
}
.case-card:hover .case-img { transform: scale(1.03); }

.case-title-link {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
.case-title-link:hover { color: var(--color-primary); }

.case-card-footer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}
.case-read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  transition: gap var(--transition), color var(--transition);
}
.case-read-more:hover { gap: 0.6rem; color: var(--color-primary-h); }
.case-read-more svg { width: 0.9rem; height: 0.9rem; }

/* ── SINGLE PORTFOLIO ──────────────────────────────────────────────────────── */
.sp-hero-img {
  width: 100%;
  max-height: 460px;
  overflow: hidden;
  background: var(--color-bg-dark);
}
.sp-hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.sp-hero-placeholder {
  height: 120px;
  background: var(--color-bg-dark);
}

.sp-body {
  padding-block: 3rem 5rem;
  max-width: 820px;
}

.sp-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
  text-decoration: none;
  margin-bottom: 2rem;
  transition: color var(--transition);
}
.sp-back:hover { color: var(--color-primary); }
.sp-back-icon {
  width: 0.9rem;
  height: 0.9rem;
  transform: rotate(180deg);
  display: inline-block;
}

.sp-header { margin-bottom: 2.5rem; }
.sp-header h1 { margin-block: 0.5rem 0.25rem; font-size: clamp(1.5rem, 3vw, 2.25rem); }
.sp-subtitle { font-size: 1.05rem; color: var(--color-muted); margin-top: 0.35rem; }

.sp-sections { display: grid; gap: 2rem; margin-bottom: 2.5rem; }

.sp-section {
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-light);
}
.sp-section-value {
  background: rgba(99,102,241,.04);
  border-color: rgba(99,102,241,.2);
}

.sp-section-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.sp-section-text { font-size: 1rem; color: var(--color-muted); max-width: none; line-height: 1.8; }

.sp-skills { margin-bottom: 3rem; }
.sp-skills-label { font-size: 0.875rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--color-text); }

.sp-cta {
  background: var(--color-bg-dark);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
}
.sp-cta h3 { color: #fff; font-size: 1.5rem; margin-bottom: 0.5rem; }
.sp-cta p { color: rgba(255,255,255,.65); max-width: 45ch; margin-inline: auto; margin-bottom: 1.75rem; }
.sp-cta-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }

/* ═══════════════════════════════════════════════════════════════════════════════
   MOBILE UX OVERHAUL
   ═══════════════════════════════════════════════════════════════════════════════ */

/* ── MOBILE BASE IMPROVEMENTS ──────────────────────────────────────────────── */

/* Larger touch targets for all interactive elements */
@media (max-width: 639px) {

  /* Better base spacing on small screens */
  .section { padding-block: 3.5rem; }

  /* Hero — more breathing room, better vertical rhythm */
  .hero { padding-top: 70px; min-height: auto; padding-bottom: 0; }
  .hero-inner { padding-block: 3rem 3.5rem; }
  .hero h1 { font-size: 2rem; letter-spacing: -0.03em; margin-bottom: 1.25rem; }
  .hero-sub { font-size: 1rem; margin-bottom: 0.75rem; }
  .hero-support { font-size: 0.875rem; margin-bottom: 2rem; }

  /* Hero CTAs: full-width stack on very small screens */
  .hero-actions { flex-direction: column; gap: 0.65rem; }
  .hero-actions .btn { width: 100%; justify-content: center; padding: 0.9rem 1.5rem; font-size: 1rem; }

  /* Trust badges: horizontal scroll instead of wrap */
  .trust-badges {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.5rem;
    gap: 0.5rem;
    margin-inline: -1.25rem;
    padding-inline: 1.25rem;
  }
  .trust-badges::-webkit-scrollbar { display: none; }
  .trust-badge { flex-shrink: 0; }

  /* Section headers */
  .section-header { margin-bottom: 2rem; }
  .section-header p { font-size: 1rem; }
  h2 { font-size: 1.6rem; }

  /* Value cards: single column */
  .value-cards { grid-template-columns: 1fr; gap: 0.75rem; }
  .value-grid { gap: 2rem; }

  /* Service cards: full-width + better padding */
  .services-grid { gap: 0.85rem; }
  .service-card { padding: 1.5rem; }

  /* Case study cards */
  .case-studies-grid { gap: 1rem; }
  .case-card { padding: 1.5rem; }
  .case-img { height: 160px; }
  .case-img-wrap { margin: -1.5rem -1.5rem 1.25rem -1.5rem; }

  /* Skill pills: better wrapping */
  .skill-pill { font-size: 0.825rem; padding: 0.35rem 0.85rem; }

  /* Process steps: tighter */
  .process-grid { gap: 0.85rem; }
  .process-step { padding: 1.25rem; }
  .process-num { font-size: 1.35rem; min-width: 2rem; }

  /* Outcomes: 2 columns on mobile */
  .outcomes-grid { grid-template-columns: 1fr 1fr; gap: 0.65rem; }
  .outcome-card { padding: 1rem; gap: 0.65rem; }
  .outcome-card p { font-size: 0.8rem; }
  .outcome-icon { width: 1.75rem; height: 1.75rem; }

  /* About section */
  .about-inner { gap: 2rem; }
  .about-text h2 { font-size: 1.75rem; }
  .about-actions { flex-direction: column; gap: 0.65rem; }
  .about-actions .btn { width: 100%; justify-content: center; }
  .about-highlights { gap: 0.75rem; }
  .about-highlight { padding: 1.25rem; }

  /* Contact: full width form */
  .contact-inner { gap: 2rem; }
  .contact-intro h2 { font-size: 1.6rem; }
  .contact-form-wrap { padding: 1.5rem; }
  .form-row { grid-template-columns: 1fr; }

  /* Contact social links: 2-column grid */
  .contact-social { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }
  .social-link { justify-content: center; font-size: 0.8rem; padding: 0.6rem 0.75rem; }

  /* Insights */
  .insights-grid { gap: 0.85rem; }
  .insight-card { padding: 1.35rem; }

  /* AI advantage */
  .ai-intro { font-size: 0.975rem; margin-bottom: 2rem; }
  .ai-cards { grid-template-columns: 1fr; gap: 0.6rem; margin-bottom: 2rem; }
  .ai-card { padding: 1rem 1.25rem; }
  .ai-closing { padding: 1.5rem; margin-top: 2rem; }
  .ai-closing p { font-size: 0.9rem; }

  /* Footer */
  .footer-inner { gap: 1.5rem; }
  .footer-social a { font-size: 0.775rem; }

  /* Single portfolio */
  .sp-body { padding-block: 2rem 3rem; }
  .sp-sections { gap: 1rem; }
  .sp-section { padding: 1.25rem; }
  .sp-cta { padding: 1.75rem 1.25rem; }
  .sp-cta-actions { flex-direction: column; gap: 0.65rem; }
  .sp-cta-actions .btn { width: 100%; justify-content: center; }

  /* Nav header: tighter on mobile */
  .header-inner { padding-block: 0.875rem; gap: 0.75rem; }
  .nav-cta { display: none; } /* Hide header CTA on mobile — it's in the nav */
  .logo-role { display: none; } /* Hide role on smallest screens */
  .nav-toggle { padding: 0.5rem; margin-left: auto; }
  .nav-toggle svg { width: 1.35rem; height: 1.35rem; }

  /* Mobile nav: tighter padding on small screens */
  .site-nav.is-open .nav-list { padding: 4.5rem 1.25rem 2rem; }
  .site-nav.is-open .nav-list a {
    font-size: 1.05rem;
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  /* Buttons: minimum touch target */
  .btn { min-height: 44px; }
}

/* ── SMALL MOBILE (< 380px) ────────────────────────────────────────────────── */
@media (max-width: 379px) {
  .hero h1 { font-size: 1.75rem; }
  .outcomes-grid { grid-template-columns: 1fr; }
  .contact-social { grid-template-columns: 1fr; }
}

/* ── TABLET REFINEMENTS (640px–1023px) ─────────────────────────────────────── */
@media (min-width: 640px) and (max-width: 1023px) {
  .hero-actions .btn { min-width: 160px; }
  .ai-cards { grid-template-columns: 1fr 1fr; }
  .sp-cta-actions { justify-content: flex-start; }
  .outcomes-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ── ENSURE LOGO ROLE SHOWS ON TABLET+ ────────────────────────────────────── */
@media (min-width: 640px) {
  .logo-role { display: block; }
  .nav-cta { display: inline-flex; }
  .header-inner { padding-block: 1rem; }
}