/* ============================================
   The Streamline Group — Design System
   Vibe: Clean & Modern
   Colors: Navy #1A375B + Silver #A5ACAF
   Font: Inter
   ============================================ */

/* --- Custom Properties --- */
:root {
  --color-primary: #1A375B;
  --color-primary-light: #264B7A;
  --color-primary-dark: #0F2240;
  --color-secondary: #A5ACAF;
  --color-secondary-light: #C8CDD0;
  --color-accent: #2E6DB4;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F4F6F8;
  --color-bg-dark: #1A375B;
  --color-text: #1E293B;
  --color-text-light: #FFFFFF;
  --color-muted: #64748B;
  --color-border: #E2E8F0;
  --color-success: #16A34A;
  --color-error: #DC2626;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);

  --max-width: 1200px;
  --spacing-section: 5rem;
  --spacing-section-sm: 3rem;
  --transition: 0.2s ease;
}

/* --- 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);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary);
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  z-index: 1000;
  font-size: 0.875rem;
}

.skip-link:focus {
  top: 1rem;
  color: #fff;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
  margin-bottom: 1rem;
  max-width: 72ch;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

strong {
  font-weight: 600;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Sections --- */
.section {
  padding: var(--spacing-section) 0;
}

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

.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--dark .text-muted {
  color: var(--color-secondary-light);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-header p {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-muted);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 48px;
  line-height: 1.4;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: #fff;
}

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

.btn--secondary:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn--white {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}

.btn--white:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-bg-alt);
  color: var(--color-primary);
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.125rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
  gap: 1rem;
}

.header-logo img {
  height: 96px;
  width: auto;
}

.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.5rem 0;
  position: relative;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-dropdown-toggle svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition);
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  padding: 0.5rem 0;
  z-index: 200;
  list-style: none;
  margin-top: 0;
  padding-top: 1rem;
}

.nav-dropdown-menu li a {
  display: block;
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  white-space: nowrap;
}

.nav-dropdown-menu li a:hover {
  background: var(--color-bg-alt);
}

.nav-dropdown-menu li a::after {
  display: none;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  display: block;
}

.nav-dropdown:hover .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.header-phone {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9375rem;
  white-space: nowrap;
}

.header-phone:hover {
  color: var(--color-accent);
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  min-height: 48px;
  min-width: 48px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition);
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  left: 0;
  transition: all var(--transition);
}

.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }

.nav-toggle.active span { background: transparent; }
.nav-toggle.active span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.active span::after { top: 0; transform: rotate(-45deg); }

/* Mobile Nav — hidden by default, shown via JS toggle on mobile */
.mobile-nav {
  display: none;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-primary-dark);
  color: var(--color-secondary-light);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
  color: var(--color-secondary-light);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-top: 1rem;
}

.footer-brand img {
  height: 40px;
  width: auto;
}

.site-footer h4 {
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

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

.footer-links li {
  margin-bottom: 0.625rem;
}

.footer-links a {
  color: var(--color-secondary-light);
  font-size: 0.9375rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: #fff;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact-item a {
  color: var(--color-secondary-light);
}

.footer-contact-item a:hover {
  color: #fff;
}

.footer-bottom {
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--color-secondary);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer-bottom a {
  color: var(--color-secondary);
}

.footer-bottom a:hover {
  color: #fff;
}

/* --- Hero --- */
.hero {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.hero--home {
  padding: 6rem 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero h1 {
  color: #fff;
  margin-bottom: 1.25rem;
}

.hero p {
  font-size: 1.125rem;
  color: var(--color-secondary-light);
  margin-bottom: 2rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 50%;
  opacity: 0.15;
  z-index: 1;
}

/* Page Hero (inner pages) */
.page-hero {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: 3.5rem 0;
}

.page-hero h1 {
  color: #fff;
  margin-bottom: 0.5rem;
}

.page-hero p {
  color: var(--color-secondary-light);
  font-size: 1.0625rem;
  max-width: 600px;
}

/* Breadcrumbs */
.breadcrumbs {
  padding: 0.75rem 0;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.8125rem;
}

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

.breadcrumbs li::after {
  content: '/';
  margin-left: 0.5rem;
  color: var(--color-muted);
}

.breadcrumbs li:last-child::after {
  display: none;
}

.breadcrumbs a {
  color: var(--color-muted);
}

.breadcrumbs a:hover {
  color: var(--color-primary);
}

.breadcrumbs .current {
  color: var(--color-text);
  font-weight: 500;
}

/* --- Cards --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

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

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-primary);
}

.card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-primary);
}

.card-link:hover {
  gap: 0.75rem;
}

/* --- Trust Bar --- */
.trust-bar {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 1.5rem 0;
}

.trust-items {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-primary);
}

.trust-item svg {
  flex-shrink: 0;
}

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 1.5rem;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.section--dark .stat-number {
  color: #fff;
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.section--dark .stat-label {
  color: var(--color-secondary-light);
}

/* --- Testimonials --- */
.testimonial-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.testimonial-text {
  font-size: 1.0625rem;
  line-height: 1.7;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.testimonial-author {
  font-weight: 600;
  color: var(--color-primary);
}

.testimonial-role {
  font-size: 0.875rem;
  color: var(--color-muted);
}

.testimonial-stars {
  color: #F59E0B;
  margin-bottom: 0.75rem;
  font-size: 1.125rem;
}

/* --- FAQ Accordion --- */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.125rem 1.5rem;
  background: #fff;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  min-height: 48px;
  transition: background var(--transition);
  gap: 1rem;
}

.faq-question:hover {
  background: var(--color-bg-alt);
}

.faq-question svg {
  flex-shrink: 0;
  transition: transform var(--transition);
  width: 20px;
  height: 20px;
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  color: var(--color-muted);
  line-height: 1.7;
}

.faq-answer-inner p {
  margin-bottom: 0.75rem;
}

.faq-answer-inner p:last-child {
  margin-bottom: 0;
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--color-primary);
  color: #fff;
  padding: 4rem 0;
  text-align: center;
}

.cta-banner h2 {
  color: #fff;
  margin-bottom: 1rem;
}

.cta-banner p {
  color: var(--color-secondary-light);
  font-size: 1.0625rem;
  margin: 0 auto 2rem;
  max-width: 600px;
}

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

.form-label {
  display: block;
  font-weight: 500;
  font-size: 0.9375rem;
  margin-bottom: 0.375rem;
  color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  min-height: 48px;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,55,91,0.1);
}

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

/* --- Image Placeholders --- */
.image-placeholder {
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
}

.image-placeholder span {
  color: var(--color-muted);
  font-size: 0.8125rem;
  text-align: center;
  padding: 1rem;
}

/* --- Blog Cards --- */
.blog-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.blog-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.blog-card-body {
  padding: 1.5rem;
}

.blog-card-meta {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 0.5rem;
}

.blog-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.blog-card h3 a {
  color: var(--color-primary);
}

.blog-card h3 a:hover {
  color: var(--color-accent);
}

.blog-card p {
  color: var(--color-muted);
  font-size: 0.9375rem;
}

/* --- Content Page --- */
.content-page {
  padding: var(--spacing-section) 0;
}

.content-page h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.content-page h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.content-page ul,
.content-page ol {
  margin-bottom: 1.5rem;
}

.content-page table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}

.content-page th,
.content-page td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.content-page th {
  background: var(--color-bg-alt);
  font-weight: 600;
  color: var(--color-primary);
}

/* --- Two Column Layout --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.two-col--reverse {
  direction: rtl;
}

.two-col--reverse > * {
  direction: ltr;
}

/* --- Utility Classes --- */
.text-center { text-align: center; }
.text-muted { color: var(--color-muted); }
.text-primary { color: var(--color-primary); }
.text-white { color: #fff; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }

/* --- Print CSS --- */
@page { margin: 0; }
@media print {
  body {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }
  .site-header, .site-footer, .nav-toggle { display: none; }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .card-grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .two-col {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .two-col--reverse {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-section: 3.5rem;
  }

  .nav-links,
  .header-actions .btn {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  /* Mobile Menu */
  .mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    z-index: 99;
    padding: 5rem 1.5rem 2rem;
    overflow-y: auto;
  }

  .mobile-nav.active {
    display: block;
  }

  .mobile-nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .mobile-nav-links li {
    border-bottom: 1px solid var(--color-border);
  }

  .mobile-nav-links a {
    display: block;
    padding: 1rem 0;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
    min-height: 48px;
  }

  .mobile-nav-links a:hover,
  .mobile-nav-links a.active {
    color: var(--color-primary);
  }

  .mobile-nav-sub {
    list-style: none;
    padding: 0 0 0 1rem;
    margin: 0;
  }

  .mobile-nav-sub a {
    font-size: 1rem;
    font-weight: 400;
    padding: 0.75rem 0;
  }

  .mobile-nav-cta {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .mobile-nav-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .card-grid,
  .card-grid--3 {
    grid-template-columns: 1fr;
  }

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

  .hero--home {
    padding: 4rem 0;
  }

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

  .trust-items {
    gap: 1.5rem;
  }

  .header-phone {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

  .trust-items {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
}