/* ==========================================================================
   Emaspace — Design System & Stylesheet
   Corporate, trustworthy, lean static stylesheet.
   Brand Colors:
     - Night Navy: #0A1A33
     - Electric Blue: #1D5BD8
     - Light Electric Blue: #6EA8FF
     - Deep Night: #07101F
     - Neutral White: #FFFFFF
   ========================================================================== */

:root {
  --color-navy: #0A1A33;
  --color-electric: #1D5BD8;
  --color-electric-hover: #1545A8;
  --color-electric-light: #6EA8FF;
  --color-night: #07101F;
  --color-night-card: #0D1B30;
  --color-white: #FFFFFF;
  --color-slate-50: #F8FAFC;
  --color-slate-100: #F1F5F9;
  --color-slate-200: #E2E8F0;
  --color-slate-300: #CBD5E1;
  --color-slate-600: #475569;
  --color-slate-700: #334155;
  --color-slate-900: #0F172A;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(10, 26, 51, 0.08), 0 4px 6px -4px rgba(10, 26, 51, 0.04);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-slate-700);
  background-color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
  min-width: 320px;
}

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

a {
  color: var(--color-electric);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-electric-light);
  outline-offset: 2px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1140px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Header & Navigation */
.site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background-color: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo-link {
  display: flex;
  align-items: center;
}

.logo-link img {
  height: 34px;
  width: auto;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background-color 0.2s, border-color 0.2s;
}

.lang-switch:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
}

.header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  background-color: var(--color-electric);
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background-color 0.2s, transform 0.1s;
}

.header-btn:hover {
  background-color: var(--color-electric-hover);
  color: var(--color-white);
}

/* Hero Section (Dark #07101F) */
.hero-section {
  position: relative;
  background-color: var(--color-night);
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(29, 91, 216, 0.2), transparent 70%),
    radial-gradient(circle at 10% 20%, rgba(10, 26, 51, 0.8), transparent 40%);
  color: var(--color-white);
  padding-top: 160px;
  padding-bottom: 110px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-content {
  max-width: 840px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 9999px;
  background-color: rgba(110, 168, 255, 0.1);
  border: 1px solid rgba(110, 168, 255, 0.25);
  color: var(--color-electric-light);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-badge::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-electric-light);
}

.hero-title {
  font-size: 2.75rem;
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--color-electric-light);
  font-weight: 500;
  margin-bottom: 20px;
}

.hero-description {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-slate-300);
  max-width: 720px;
  margin: 0 auto 36px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  background-color: var(--color-electric);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid var(--color-electric);
  transition: all 0.2s ease;
  box-shadow: 0 4px 14px rgba(29, 91, 216, 0.4);
}

.btn-primary:hover {
  background-color: var(--color-electric-hover);
  border-color: var(--color-electric-hover);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(29, 91, 216, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-white);
}

/* Sections Common */
.section {
  padding-top: 96px;
  padding-bottom: 96px;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-electric);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.125rem;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--color-navy);
  margin-bottom: 16px;
}

.section-description {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-slate-600);
}

/* What We Do Section */
.what-we-do-section {
  background-color: var(--color-slate-50);
  border-bottom: 1px solid var(--color-slate-200);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-slate-300);
}

.card-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: rgba(29, 91, 216, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-electric);
}

.card-title {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--color-navy);
  margin-bottom: 12px;
}

.card-text {
  font-size: 0.9875rem;
  line-height: 1.65;
  color: var(--color-slate-600);
  flex-grow: 1;
}

/* Approach Section */
.approach-section {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-slate-200);
}

.approach-highlight {
  background-color: var(--color-slate-50);
  border-left: 4px solid var(--color-electric);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 32px 36px;
  margin-bottom: 56px;
  box-shadow: var(--shadow-sm);
}

.approach-quote {
  font-size: 1.25rem;
  line-height: 1.6;
  font-weight: 600;
  color: var(--color-navy);
  font-style: italic;
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.approach-card {
  padding: 28px 24px;
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
}

.approach-step-num {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-electric);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.approach-title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 12px;
}

.approach-text {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-slate-600);
}

/* Contact Section (Dark Navy #0A1A33) */
.contact-section {
  background-color: var(--color-navy);
  color: var(--color-white);
  text-align: center;
}

.contact-section .section-title {
  color: var(--color-white);
}

.contact-section .section-description {
  color: var(--color-slate-300);
  margin-bottom: 40px;
}

.contact-card {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  max-width: 620px;
  margin: 0 auto;
}

.contact-email-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-white);
  padding: 12px 28px;
  border-radius: var(--radius-md);
  background-color: var(--color-electric);
  border: 1px solid var(--color-electric);
  margin-bottom: 20px;
  transition: all 0.2s ease;
  box-shadow: 0 4px 16px rgba(29, 91, 216, 0.4);
}

.contact-email-link:hover {
  background-color: var(--color-electric-hover);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(29, 91, 216, 0.5);
}

.contact-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 0.9375rem;
  color: var(--color-slate-300);
  flex-wrap: wrap;
}

.contact-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Site Footer (Deep Night #07101F) */
.site-footer {
  background-color: var(--color-night);
  color: var(--color-slate-300);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 56px;
  padding-bottom: 48px;
  font-size: 0.875rem;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--color-slate-300);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--color-slate-300);
}

.footer-social-link {
  color: var(--color-slate-300);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s ease;
}

.footer-social-link:hover {
  color: var(--color-electric-light);
}

/* 404 Page Specific */
.error-page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-night);
  color: var(--color-white);
}

.error-main {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  text-align: center;
}

.error-card {
  max-width: 580px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
}

.error-code {
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-electric-light);
  margin-bottom: 16px;
}

.error-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-slate-300);
  margin-bottom: 32px;
}

.error-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .hero-title {
    font-size: 2.25rem;
  }
  .cards-grid {
    grid-template-columns: 1fr;
  }
  .approach-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: relative;
    background-color: var(--color-night);
  }
  .header-inner {
    height: 68px;
  }
  .hero-section {
    padding-top: 60px;
    padding-bottom: 72px;
  }
  .hero-title {
    font-size: 1.875rem;
  }
  .hero-subtitle {
    font-size: 1.1rem;
  }
  .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }
  .section-title {
    font-size: 1.75rem;
  }
  .card {
    padding: 28px 20px;
  }
  .contact-card {
    padding: 32px 20px;
    width: 100%;
  }
  .contact-email-link {
    font-size: 1.15rem;
    padding: 10px 18px;
    word-break: break-all;
  }
  .footer-top, .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}