/* Base */
:root {
  --primary: #1a73e8;
  --text: #333;
  --muted: #666;
  --bg: #f6f8fb;
  --page-bg: radial-gradient(1200px 600px at 20% 0%, rgba(26, 115, 232, 0.12), transparent 55%),
    radial-gradient(1000px 520px at 90% 10%, rgba(26, 115, 232, 0.08), transparent 50%), var(--bg);
  --card-bg: rgba(255, 255, 255, 0.82);
  --border: rgba(26, 115, 232, 0.14);
  --shadow: 0 10px 28px rgba(16, 24, 40, 0.08);
  --radius: 18px;
  --max: 1200px;
  --surface: rgba(246, 248, 251, 0.7);
  --surface-border: rgba(26, 115, 232, 0.12);
  --hover-bg: rgba(26, 115, 232, 0.08);
  --icon-opacity: 0.9;
}

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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--page-bg);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

.container {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 12px;
  z-index: 10;
  padding: 10px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
}

.skip-link:focus {
  left: 12px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--surface);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--surface-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0;
}

.header-inner > * {
  min-width: 0;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 40px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(26, 115, 232, 0.18);
  background: rgba(255, 255, 255, 0.8);
  object-fit: contain;
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.nav-link {
  font-size: 13px;
  color: var(--muted);
  padding: 7px 10px;
  border-radius: 999px;
  transition: background 140ms ease, color 140ms ease;
}

.nav-link:hover {
  background: var(--hover-bg);
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.lang-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
}

.lang-label i {
  color: var(--primary);
  font-size: 14px;
  opacity: var(--icon-opacity);
}

.lang-select {
  border: 1px solid rgba(26, 115, 232, 0.22);
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
  border-radius: 10px;
  padding: 7px 10px;
  outline: none;
  cursor: pointer;
}

.header-link {
  font-size: 13px;
  color: var(--muted);
  padding: 7px 10px;
  border-radius: 999px;
  transition: background 140ms ease, color 140ms ease;
}

.header-link:hover {
  background: var(--hover-bg);
  color: var(--text);
}

/* Sections */
.section {
  padding: 44px 0;
}

.section-inner {
  display: flex;
  justify-content: center;
}

.card {
  width: 100%;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 26px;
  hyphens: auto;
  overflow-wrap: normal;
  word-break: keep-all;
}

.section-title {
  margin: 0 0 12px;
  font-size: 26px;
  letter-spacing: -0.02em;
}

.section-text {
  margin: 0 0 12px;
  color: var(--muted);
}

.hero {
  padding: 64px 0 52px;
}

.hero-card {
  padding: 34px;
}

.hero-title {
  margin: 0 0 10px;
  font-size: 38px;
  line-height: 1.15;
}

.hero-subtitle {
  margin: 0;
  font-size: 16px;
  color: var(--muted);
}

/* Strengths */
.strengths-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
}

.strength-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex: 1 1 280px;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid rgba(26, 115, 232, 0.12);
  background: rgba(255, 255, 255, 0.62);
}

.strength-icon {
  color: var(--primary);
  font-size: 18px;
  margin-top: 2px;
  opacity: var(--icon-opacity);
}

.strength-text {
  color: var(--text);
  font-weight: 600;
}

/* Services */
.services-list {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.services-item {
  margin: 10px 0;
}

/* Founder */
.founder-quote {
  margin: 0 0 14px;
  padding-left: 14px;
  border-left: 3px solid rgba(26, 115, 232, 0.5);
  color: var(--text);
  font-size: 17px;
}

.founder-name {
  color: var(--muted);
  font-weight: 600;
}

/* Contact */
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(26, 115, 232, 0.14);
  background: rgba(255, 255, 255, 0.6);
  color: var(--primary);
  font-weight: 700;
}

.contact-email i {
  color: var(--primary);
  font-size: 14px;
  opacity: var(--icon-opacity);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--surface-border);
  background: var(--surface);
  backdrop-filter: blur(10px);
  padding: 22px 0;
}

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

.footer-copy {
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.footer-link {
  font-size: 14px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 999px;
  transition: background 140ms ease, color 140ms ease;
}

.footer-link:hover {
  background: var(--hover-bg);
  color: var(--text);
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: rgba(234, 242, 255, 0.95);
    --muted: rgba(234, 242, 255, 0.72);
    --bg: #070b14;
    --page-bg: radial-gradient(1200px 600px at 20% 0%, rgba(96, 165, 250, 0.14), transparent 55%),
      radial-gradient(1000px 520px at 90% 10%, rgba(34, 211, 238, 0.12), transparent 52%), var(--bg);
    --card-bg: rgba(10, 16, 30, 0.62);
    --border: rgba(96, 165, 250, 0.18);
    --shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
    --surface: rgba(8, 12, 22, 0.6);
    --surface-border: rgba(96, 165, 250, 0.16);
    --hover-bg: rgba(96, 165, 250, 0.14);
    --icon-opacity: 0.82;
  }
}

/* Responsive */
@media (max-width: 900px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero {
    padding: 56px 0 46px;
  }
}

@media (max-width: 768px) {
  body {
    font-size: clamp(14px, 4vw, 15px);
  }

  .container {
    width: min(var(--max), calc(100% - 28px));
  }

  .header-inner {
    gap: 12px;
  }

  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .nav-link {
    padding: 6px 8px;
  }

  .header-actions {
    gap: 8px;
  }

  .hero-title {
    font-size: clamp(26px, 7vw, 34px);
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .strength-item {
    flex: 1 1 100%;
    min-width: 0;
  }
}

@media (max-width: 540px) {
  .container {
    width: min(var(--max), calc(100% - 28px));
  }

  .card {
    padding: 20px;
  }

  .hero-card {
    padding: 24px;
  }

  .section-title {
    font-size: 24px;
  }

  .section {
    padding: 32px 0;
  }
}