/* ==========================================================================
   Custom PHP Website Cost Estimator — Brand Stylesheet
   Palette: Gold #D4AF37 / Black #000000 / Light Gold #F5D76E / White #F9FAFB
   Font: Poppins
   ========================================================================== */

:root {
  --color-primary: #D4AF37;      /* Gold - brand primary */
  --color-secondary: #000000;    /* Black - brand secondary */
  --color-accent: #F5D76E;       /* Light Gold - highlight */
  --color-text: #F9FAFB;         /* White - primary text */

  --color-bg: #0A0A0A;           /* near-black page background */
  --color-surface: #151515;      /* card surface, lifted off pure black */
  --color-surface-alt: #1D1D1D;  /* hover / alt surface */
  --color-border: rgba(249, 251, 251, 0.10);
  --color-text-muted: rgba(249, 251, 251, 0.62);

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

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-full: 999px;

  --shadow-gold: 0 8px 30px rgba(212, 175, 55, 0.15);
  --container-width: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-brand);
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* Focus visibility for keyboard users */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

/* ---------------------------------- Header ---------------------------------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-secondary);
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  color: var(--color-primary);
}

.tool-capsules {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.capsule-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  font-weight: 500;
}

.capsule-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.capsule {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: transparent;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.capsule:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}

.capsule--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-secondary);
  font-weight: 600;
}

.capsule--active:hover {
  color: var(--color-secondary);
}

/* ---------------------------------- Hero ---------------------------------- */

.hero {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--color-border);
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  max-width: 780px;
  margin: 0 0 16px;
  color: var(--color-text);
}

.hero-sub {
  max-width: 620px;
  color: var(--color-text-muted);
  font-size: 1rem;
  margin: 0;
}

/* ---------------------------------- Estimator / Accordion ---------------------------------- */

.estimator {
  padding: 40px 0 24px;
}

.category-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
}

.category-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: transparent;
  border: none;
  color: var(--color-text);
  font-family: inherit;
  padding: 20px 22px;
  cursor: pointer;
  text-align: left;
}

.category-toggle-text {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.category-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.category-meta {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

.chevron {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
}

.category-toggle.is-open .chevron {
  transform: rotate(-135deg);
}

.category-toggle:hover {
  background: var(--color-surface-alt);
}

.category-body {
  padding: 4px 22px 20px;
  border-top: 1px solid var(--color-border);
}

.category-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 16px 0 18px;
}

.feature-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--color-border);
  cursor: pointer;
}

.feature-row:first-of-type {
  border-top: none;
}

.feature-row--base {
  cursor: default;
  background: rgba(212, 175, 55, 0.06);
  border-radius: var(--radius-sm);
  padding: 16px;
  border-top: none;
  margin-bottom: 4px;
}

.feature-info {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.feature-checkbox {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  width: 20px;
  height: 20px;
  margin: 0;
  cursor: pointer;
}

.feature-checkbox:focus-visible + .feature-check {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.feature-check {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 6px;
  border: 1.5px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.feature-checkbox:checked + .feature-check {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.feature-checkbox:checked + .feature-check::after {
  content: '\2713';
  font-size: 12px;
  font-weight: 700;
  color: var(--color-secondary);
}

.feature-check--locked {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-secondary);
  font-size: 12px;
  font-weight: 700;
}

.feature-text { min-width: 0; }

.feature-label {
  margin: 0;
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--color-text);
}

.feature-desc {
  margin: 4px 0 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.badge-included {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-full);
  padding: 2px 9px;
}

.feature-price {
  flex-shrink: 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
}

.feature-row--option:hover .feature-check {
  border-color: var(--color-primary);
}

/* ---------------------------------- Sticky Estimate Bar ---------------------------------- */

.estimate-spacer {
  height: 96px;
}

.estimate-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-secondary);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-gold);
  z-index: 50;
}

.estimate-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding: 14px 24px;
}

.estimate-meter {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(249, 251, 251, 0.08);
}

.estimate-meter-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width 0.35s ease;
}

.estimate-total {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.estimate-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  font-weight: 500;
}

.estimate-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
}

.estimate-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  border: 1.5px solid transparent;
}

.btn:hover { transform: translateY(-1px); }

.btn--whatsapp {
  background: var(--color-primary);
  color: var(--color-secondary);
}

.btn--whatsapp:hover { background: var(--color-accent); }

.btn--email {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--email:hover { background: rgba(212, 175, 55, 0.1); }

/* ---------------------------------- Footer ---------------------------------- */

.site-footer {
  background: var(--color-secondary);
  border-top: 1px solid var(--color-border);
  margin-top: 40px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding: 48px 24px 32px;
}

.logo--footer {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  max-width: 320px;
  margin: 0;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  margin: 0 0 14px;
}

.footer-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a,
.footer-contact a {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  transition: color 0.15s ease;
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--color-accent);
}

.footer-contact p { margin: 0 0 10px; }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 18px 0;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* ---------------------------------- Responsive ---------------------------------- */

@media (max-width: 780px) {
  .footer-inner {
    grid-template-columns: 1fr;
    padding: 40px 24px 24px;
  }
}

@media (max-width: 640px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .tool-capsules { width: 100%; }
  .capsule-group { width: 100%; }

  .hero { padding: 44px 0 32px; }

  .feature-row { align-items: flex-start; }
  .feature-price { font-size: 0.85rem; }

  .estimate-bar-inner {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .estimate-actions { flex-direction: column; }
  .btn { width: 100%; }

  .estimate-spacer { height: 168px; }
}