/* =========================================================
   AIZAZ — Google Ads Specialist for US Home Services
   Design tokens
   ========================================================= */

:root {
  /* Color */
  --bg: #FAFAF8;
  --bg-alt: #F1F0EC;
  --surface: #FFFFFF;
  --ink: #1C2333;
  --ink-soft: #4A5266;
  --border: #E3E1DA;
  --accent: #3B4FE0;
  --accent-ink: #2C3BB8;
  --accent-tint: #EEF0FD;
  --slate: #5B6B8C;
  --ok: #1E7A4C;
  --focus: #3B4FE0;

  /* Type */
  --font-display: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;

  /* Spacing scale */
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 6.5rem;

  --radius: 10px;
  --radius-sm: 6px;
  --max-width: 1160px;
  --shadow-sm: 0 1px 2px rgba(28, 35, 51, 0.06);
  --shadow-md: 0 8px 24px rgba(28, 35, 51, 0.08);
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 var(--space-3);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 var(--space-3); color: var(--ink-soft); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

section { padding: var(--space-7) 0; }
.section-alt { background: var(--bg-alt); }
.section-tight { padding: var(--space-6) 0; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-2);
}

.lede {
  font-size: 1.125rem;
  max-width: 620px;
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-5);
}

/* Focus states */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  border-radius: 6px;
  z-index: 200;
}
.skip-link:focus {
  left: var(--space-3);
  top: var(--space-3);
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent-ink); }
.btn-block { width: 100%; }
.btn-row { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--space-4);
  max-width: var(--max-width);
  margin: 0 auto;
}
.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.brand-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); display: inline-block; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover, .nav-links a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}
.nav-actions { display: flex; align-items: center; gap: var(--space-3); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  position: relative;
  transition: 0.2s ease;
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

.mobile-panel {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-4) var(--space-5);
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.mobile-panel a {
  padding: 0.85rem 0.25rem;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}
.mobile-panel .btn { margin-top: var(--space-3); }

body.nav-open .mobile-panel { display: flex; }

@media (max-width: 860px) {
  .nav-links, .nav-actions .btn-secondary-desktop { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; }
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding: var(--space-8) 0 var(--space-7);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-6);
  align-items: center;
}
.hero-copy .trust-line {
  margin-top: var(--space-4);
  font-size: 0.9rem;
  color: var(--slate);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.hero-portrait {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-2);
  box-shadow: var(--shadow-md);
}
.hero-portrait img {
  border-radius: calc(var(--radius) - 4px);
  aspect-ratio: 4 / 5;
  object-fit: cover;
  width: 100%;
  background: var(--bg-alt);
}
.hero-portrait figcaption {
  font-size: 0.85rem;
  color: var(--slate);
  padding: var(--space-2) var(--space-1) var(--space-1);
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-portrait { max-width: 320px; }
}

/* Node diagram (signature element) */
.node-line {
  display: flex;
  align-items: center;
  gap: 0;
  margin: var(--space-4) 0;
  overflow-x: auto;
  padding-bottom: 4px;
}
.node {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-ink);
  background: var(--accent-tint);
  border: 1px solid #D7DBF7;
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  white-space: nowrap;
}
.node-connector {
  flex: 0 0 auto;
  width: 26px;
  height: 1px;
  background: var(--border);
  position: relative;
}
.node-connector::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* =========================================================
   Cards / grids
   ========================================================= */
.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: #C9CDE0; box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.card h3 { margin-bottom: 0.4rem; }
.card p:last-child { margin-bottom: 0; }
.card-icon {
  width: 40px; height: 40px;
  border-radius: 9px;
  background: var(--accent-tint);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-ink);
  margin-bottom: var(--space-3);
}

.industry-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.pill {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 500;
}

/* Process list */
.process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
  border-left: 2px solid var(--border);
}
.process-list li {
  position: relative;
  padding: 0 0 var(--space-5) var(--space-5);
  counter-increment: step;
}
.process-list li::before {
  content: counter(step);
  position: absolute;
  left: -19px;
  top: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}
.process-list li:last-child { padding-bottom: 0; }
.process-list h3 { margin-bottom: 0.25rem; }

/* Sample / demo tag */
.tag-demo {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: #FFF4E5;
  color: #8A5A00;
  border: 1px solid #F0DDB2;
  border-radius: 5px;
  padding: 0.2rem 0.55rem;
  margin-bottom: var(--space-2);
}

.keyword-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-3);
}
.keyword-columns h4 { font-family: var(--font-display); font-size: 0.95rem; margin: 0 0 0.5rem; }
.keyword-columns ul { margin: 0; padding-left: 1.1rem; color: var(--ink-soft); }
.keyword-columns li { margin-bottom: 0.25rem; }
@media (max-width: 640px) { .keyword-columns { grid-template-columns: 1fr; } }

/* CTA band */
.cta-band {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  padding: var(--space-6);
  text-align: center;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: #C6CBDC; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-band .btn-row { justify-content: center; margin-top: var(--space-4); }
.cta-band .btn-secondary { border-color: #4A5266; color: #fff; }
.cta-band .btn-secondary:hover { border-color: #fff; }

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item summary {
  cursor: pointer;
  padding: var(--space-3) 0;
  font-family: var(--font-display);
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--accent);
  flex-shrink: 0;
}
.faq-item[open] summary::after { content: "–"; }
.faq-item p { padding-bottom: var(--space-3); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-6) 0 var(--space-5);
  background: var(--bg-alt);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-5);
}
.footer-grid h4 { font-family: var(--font-display); font-size: 0.85rem; margin-bottom: var(--space-2); color: var(--slate); text-transform: uppercase; letter-spacing: 0.06em; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 0.5rem; }
.footer-grid a { color: var(--ink-soft); }
.footer-grid a:hover { color: var(--accent-ink); }
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.social-icon {
  width: 1.05rem;
  height: 1.05rem;
  flex: 0 0 auto;
  fill: currentColor;
}
.footer-bottom {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: var(--slate);
}
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

/* Page hero (interior pages) */
.page-hero { padding: var(--space-7) 0 var(--space-6); }
.page-hero .eyebrow { margin-bottom: var(--space-3); }

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}
.field-hint { font-size: 0.8rem; color: var(--slate); margin-top: 0.3rem; }

input[type="text"], input[type="email"], input[type="url"], select, textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
}
textarea { resize: vertical; min-height: 120px; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: var(--space-3); margin: 0; }
legend { font-weight: 600; font-size: 0.9rem; padding: 0 0.4rem; }
.radio-row, .checkbox-row { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: 0.4rem; }
.radio-row label, .checkbox-row label { font-weight: 400; display: flex; align-items: center; gap: 0.4rem; }

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

/* Certifications placeholder list */
.placeholder-list {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  color: var(--slate);
  font-size: 0.9rem;
}

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* Utility */
.text-center { text-align: center; }
.mt-6 { margin-top: var(--space-6); }
.small { font-size: 0.85rem; color: var(--slate); }
hr.divider { border: none; border-top: 1px solid var(--border); margin: var(--space-6) 0; }