/* A1 Solutions — dark green, accessible, international-ready UI */
:root {
  --bg-deep: #061810;
  --bg-main: #0a2418;
  --bg-card: rgba(18, 52, 36, 0.85);
  --green-700: #0f3d28;
  --green-500: #1a5c3d;
  --green-400: #2d7a52;
  --accent: #d4af37;
  --accent-hover: #e8c547;
  --text: #f2f7f4;
  --text-muted: #b5cfc0;
  --border: rgba(212, 175, 55, 0.25);
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --max: 1180px;
  --header-h: 76px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg-deep);
  min-height: 100vh;
}

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

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

a:hover,
a:focus-visible {
  color: var(--accent-hover);
}

/* Updated skip-link with theme-consistent green background */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--green-500); 
  color: #ffffff;
  font-weight: 700;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Page-specific hero backgrounds */
.page-home .hero-bg {
  background-image:
    linear-gradient(135deg, rgba(6, 24, 16, 0.92), rgba(10, 36, 24, 0.88)),
    url("https://images.unsplash.com/photo-1451187580459-43490279c0fa?w=1920&q=80");
}

.page-about .hero-bg {
  background-image:
    linear-gradient(135deg, rgba(6, 24, 16, 0.9), rgba(15, 61, 40, 0.85)),
    url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1920&q=80");
}

.page-services .hero-bg {
  background-image:
    linear-gradient(135deg, rgba(6, 24, 16, 0.92), rgba(26, 92, 61, 0.8)),
    url("https://images.unsplash.com/photo-1460925895917-afdab827c52f?w=1920&q=80");
}

.page-contact .hero-bg {
  background-image:
    linear-gradient(135deg, rgba(6, 24, 16, 0.93), rgba(10, 36, 24, 0.9)),
    url("https://images.unsplash.com/photo-1423666639043-f560e9f0f0f0?w=1920&q=80");
}

.page-testimonials .hero-bg {
  background-image:
    linear-gradient(135deg, rgba(6, 24, 16, 0.9), rgba(45, 122, 82, 0.82)),
    url("https://images.unsplash.com/photo-1552664730-d307ca884978?w=1920&q=80");
}

.hero-bg {
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

@media (prefers-reduced-motion: reduce) {
  .hero-bg {
    background-attachment: scroll;
  }
  html {
    scroll-behavior: auto;
  }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(6, 24, 16, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
}

.logo-link:hover,
.logo-link:focus-visible {
  color: var(--text);
  text-decoration: none;
}

.logo-img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
}

.logo-text {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.logo-text span {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.25rem;
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.main-nav a {
  display: block;
  padding: 0.5rem 0.9rem;
  color: var(--text);
  font-weight: 600;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  background: var(--green-500);
  color: var(--accent-hover);
}

.main-nav a.active {
  background: var(--green-400);
  color: var(--text);
  outline: 2px solid var(--accent);
}

/* Hero */
.hero {
  position: relative;
  padding: 4.5rem 1.25rem 4rem;
  text-align: center;
}

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(1.85rem, 5vw, 2.85rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  color: var(--text);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero .lead {
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 1.75rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  font-weight: 700;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  text-decoration: underline;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #b8962e);
  color: var(--bg-deep);
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.35);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(212, 175, 55, 0.45);
  color: var(--bg-deep);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--accent);
  margin-left: 0.5rem;
}

.btn-outline:hover {
  background: var(--green-500);
  color: var(--text);
}

/* Sections */
.section {
  padding: 3.5rem 1.25rem;
  max-width: var(--max);
  margin: 0 auto;
}

.section-alt {
  background: linear-gradient(180deg, var(--bg-main), var(--bg-deep));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.5rem;
  color: var(--accent);
}

.section-intro {
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 720px;
}

/* Cards grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.card h3 {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-size: 1.15rem;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
}

/* About layout */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.5rem;
  align-items: start;
}

.portrait-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 3px solid var(--accent);
  box-shadow: var(--shadow);
}

.portrait-wrap img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.badge-list li {
  background: var(--green-700);
  border: 1px solid var(--border);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

.content-block p {
  margin: 0 0 1rem;
}

/* Services */
.service-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

/* Contact form */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 2rem;
  align-items: start;
}

.contact-form {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.form-group .required {
  color: #ff9b9b;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--green-500);
  border-radius: 8px;
  background: var(--bg-deep);
  color: var(--text);
  font: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: 3px solid var(--accent);
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.field-error {
  color: #ff9b9b;
  font-size: 0.88rem;
  margin: 0.35rem 0 0;
}

.field-error[hidden] {
  display: none;
}

.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"],
.form-group select[aria-invalid="true"] {
  border-color: #e74c4c;
}

.contact-form {
  max-width: 100%;
  overflow-x: hidden;
}

.form-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.form-modal[hidden] {
  display: none;
}

.form-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
}

.form-modal-dialog {
  position: relative;
  z-index: 1;
  max-width: 420px;
  width: 100%;
  padding: 2rem;
  background: var(--bg-main);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.form-modal-title {
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.form-modal-dialog p {
  margin: 0 0 1.25rem;
  color: var(--text);
}

body.modal-open {
  overflow: hidden;
}

.contact-info h3 {
  color: var(--accent);
}

.contact-info p {
  color: var(--text-muted);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  position: relative;
}

.testimonial-card::before {
  content: "\201C";
  font-size: 3rem;
  line-height: 0;
  color: var(--accent);
  opacity: 0.5;
  position: absolute;
  top: 1rem;
  left: 1rem;
}

.testimonial-card blockquote {
  margin: 0 0 1rem;
  padding-top: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  font-style: normal;
}

.testimonial-card footer {
  font-size: 0.88rem;
}

.testimonial-card .name {
  font-weight: 700;
  color: var(--text);
}

.testimonial-card .role {
  color: var(--accent);
}

.stars {
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

/* Footer */
.site-footer {
  background: var(--bg-main);
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.25rem 1.5rem;
  margin-top: 2rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.site-footer h4 {
  color: var(--accent);
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li {
  margin-bottom: 0.4rem;
}

.site-footer a {
  color: var(--text-muted);
}

.site-footer a:hover {
  color: var(--accent);
}

.footer-bottom {
  max-width: var(--max);
  margin: 2rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* WhatsApp float */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1100;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
  transition: transform 0.2s;
}

.whatsapp-float {
  text-decoration: none;
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  transform: scale(1.08);
  outline: 3px solid var(--text);
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
  fill: #fff;
}

/* Mobile basic rules */
@media (max-width: 900px) {
  .about-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .btn-outline {
    margin-left: 0;
    margin-top: 0.75rem;
  }
}

@media (max-width: 768px) {
  .page-contact .section,
  .contact-layout,
  .contact-form {
    max-width: 100%;
    overflow-x: hidden;
  }

  .form-group select {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(6, 24, 16, 0.98);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .main-nav.is-open {
    max-height: 320px;
  }

  .main-nav ul {
    flex-direction: column;
    padding: 1rem;
  }

  .hero {
    padding: 3rem 1rem 2.5rem;
  }

  .hero-bg {
    background-attachment: scroll;
  }
}

/* ==========================================================================
   Intro Certificates Flexbox Layout (Appended Cleanly)
   ========================================================================== */
.intro-certificates {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2.2rem;
  margin: 2.5rem auto 3rem;
  max-width: 850px;
  flex-wrap: wrap;
}

.cert-item {
  flex: 1 1 290px;
  max-width: 350px;
  background: rgba(18, 52, 36, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  transition: transform 0.3s cubic-bezier(0.165, 0.84, 0.44, 1), border-color 0.3s ease;
}

.cert-item:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.cert-item img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  display: block;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .intro-certificates {
    gap: 1.5rem;
    margin: 1.5rem auto 2rem;
  }
  .cert-item {
    max-width: 290px;
  }
}