/* ==========================================================================
   Vprod — Corporate Website Stylesheet
   ========================================================================== */

/* ---------- Font-face: Manrope ---------- */

@font-face {
  font-family: 'Manrope';
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-400-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Manrope';
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-400-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Manrope';
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-500-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Manrope';
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-500-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Manrope';
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-600-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Manrope';
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-600-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Manrope';
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-700-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Manrope';
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-700-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Manrope';
  font-weight: 800;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-800-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Manrope';
  font-weight: 800;
  font-style: normal;
  font-display: swap;
  src: url('fonts/manrope-800-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- Font-face: Unbounded ---------- */

@font-face {
  font-family: 'Unbounded';
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-400-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Unbounded';
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-400-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Unbounded';
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-500-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Unbounded';
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-500-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Unbounded';
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-600-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Unbounded';
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-600-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Unbounded';
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-700-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Unbounded';
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-700-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Unbounded';
  font-weight: 800;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-800-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Unbounded';
  font-weight: 800;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-800-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Unbounded';
  font-weight: 900;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-900-cyrillic.woff2') format('woff2');
  unicode-range: U+0400-04FF, U+0500-052F, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
  font-family: 'Unbounded';
  font-weight: 900;
  font-style: normal;
  font-display: swap;
  src: url('fonts/unbounded-900-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- CSS Variables ---------- */

:root {
  --blue: #3A5490;
  --blue-light: #4E6DB5;
  --text: #171A21;
  --text-2: #5C6578;
  --bg: #F7F8FA;
  --bg-alt: #ECEEF3;
  --border: #DDE1E9;
}

/* ---------- Reset & Base ---------- */

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

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

body {
  font-family: 'Manrope', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--blue-light);
}

ul, ol {
  list-style: none;
}

/* ---------- Typography ---------- */

h1, h2, h3, h4 {
  font-family: 'Unbounded', system-ui, sans-serif;
  color: var(--text);
  line-height: 1.2;
}

h1 {
  font-weight: 800;
  font-size: 44px;
  letter-spacing: -0.5px;
}

h2 {
  font-weight: 700;
  font-size: 30px;
  margin-bottom: 48px;
}

h3 {
  font-weight: 700;
  font-size: 17px;
}

.label {
  font-family: 'Unbounded', system-ui, sans-serif;
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--blue);
  display: block;
  margin-bottom: 16px;
}

/* ---------- Layout ---------- */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section[id] {
  scroll-margin-top: 72px;
}

section {
  padding: 48px 0;
}

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

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: #fff;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
}

.logo-mark {
  width: 32px;
  height: 32px;
  border: 2px solid var(--blue);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Unbounded', system-ui, sans-serif;
  font-weight: 700;
  font-size: 13px;
  color: var(--blue);
  line-height: 1;
  flex-shrink: 0;
}

.logo-text {
  font-family: 'Unbounded', system-ui, sans-serif;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
}

.nav-toggle,
.nav-burger {
  display: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  font-family: 'Manrope', system-ui, sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav a:hover {
  color: var(--blue);
}

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

.hero {
  padding-top: 160px;
  padding-bottom: 80px;
  text-align: center;
}

.hero .label {
  margin-bottom: 20px;
  text-transform: none;
}

.hero h1 {
  margin-bottom: 24px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-sub {
  max-width: 700px;
  margin: 0 auto 56px;
  color: var(--text-2);
  font-size: 18px;
  line-height: 1.7;
}

/* ---------- Card System ---------- */

.card {
  background: var(--bg-alt);
  border-radius: 12px;
  padding: 28px;
}

.card h3,
.card-title {
  font-family: 'Unbounded', system-ui, sans-serif;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 10px;
  font-size: 16px;
  display: block;
}

.card p {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.6;
}

.card-grid {
  display: grid;
  gap: 20px;
}

.card-grid > * {
  min-width: 0;
}

.card-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

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

.card-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

/* ---------- Segments ---------- */

.segments {
  background: #fff;
}

.segments > .container > .card-grid-2,
.segments > .container > .card-grid-3 {
  gap: 40px;
}

.segment h3 {
  font-family: 'Unbounded', system-ui, sans-serif;
  color: var(--blue);
  font-size: 18px;
  margin-bottom: 12px;
}

.segment-lead {
  font-size: 17px;
  color: var(--text-2);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 20px;
}

.segment ul {
  list-style: none;
  padding: 0;
}

.segment ul li {
  margin-bottom: 12px;
  padding-left: 20px;
  position: relative;
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
}

.segment ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
}

.card,
.segment,
.hero-sub,
.arch-subtitle {
  overflow-wrap: break-word;
  hyphens: auto;
}

/* ---------- Features ---------- */

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

/* ---------- Architecture (interactive diagram) ---------- */

section.architecture {
  background: #141B2D;
  background-image:
    radial-gradient(ellipse 600px 400px at 30% 20%, rgba(90,127,214,.15) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 70% 80%, rgba(90,127,214,.08) 0%, transparent 60%);
  color: #E2E8F0;
}

.arch-subtitle { color: rgba(148,163,184,.55); font-size: 17px; margin-bottom: 28px; }

/* Toggle */
.arch-radio { display: none; }
.arch-toggle { display: flex; justify-content: center; margin-bottom: 28px; }
.arch-toggle label {
  padding: 14px 36px; font-size: 15px; font-weight: 700; cursor: pointer;
  border: 2px solid rgba(255,255,255,.12); color: rgba(255,255,255,.4);
  transition: all .25s ease; user-select: none; letter-spacing: .3px;
  background: rgba(255,255,255,.04); backdrop-filter: blur(8px);
}
.arch-toggle label:first-of-type { border-radius: 12px 0 0 12px; border-right: none; }
.arch-toggle label:last-of-type { border-radius: 0 12px 12px 0; }
.arch-toggle label:hover { background: rgba(255,255,255,.08); color: rgba(255,255,255,.65); border-color: rgba(255,255,255,.2); }
#arch-biz:checked ~ .arch-toggle label[for="arch-biz"],
#arch-tech:checked ~ .arch-toggle label[for="arch-tech"] {
  background: rgba(90,127,214,.2); color: #E2E8F0; border-color: rgba(90,127,214,.5);
  box-shadow: 0 0 20px rgba(90,127,214,.15), 0 4px 12px rgba(0,0,0,.2);
}
.arch-view-biz, .arch-view-tech { display: none; }
#arch-biz:checked ~ .arch-view-biz { display: block; }
#arch-tech:checked ~ .arch-view-tech { display: block; }

/* Users chips */
.arch-users { display: flex; justify-content: center; gap: 14px; margin-bottom: 14px; flex-wrap: wrap; }
.arch-chip {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px; padding: 7px 16px; font-size: 12px; font-weight: 600;
  color: #93B5FF; backdrop-filter: blur(6px);
  display: flex; align-items: center; gap: 6px;
}
.arch-chip svg { flex-shrink: 0; }
.arch-arrows { text-align: center; color: rgba(90,127,214,.3); font-size: 16px; margin-bottom: 14px; letter-spacing: 6px; }

/* Business stack */
.arch-stack { display: flex; flex-direction: column; align-items: center; perspective: 800px; max-width: 720px; margin: 0 auto; }
.arch-platform {
  width: 100%; padding: 18px 24px; border-radius: 14px; transform: rotateX(7deg);
  margin-bottom: 10px; display: flex; flex-direction: column; gap: 6px;
  color: #E2E8F0; backdrop-filter: blur(12px);
}
.arch-platform-top { display: flex; align-items: center; gap: 12px; }
.arch-emoji { font-size: 24px; }
.arch-platform-top h3 { font-size: clamp(14px, 2.5vw, 16px); font-weight: 700; color: #fff; }
.arch-platform-top p { font-size: 12px; opacity: .7; margin-left: auto; }
.arch-badges { display: flex; gap: 5px; flex-wrap: wrap; }
.arch-badge { font-size: 10px; font-weight: 600; padding: 4px 11px; border-radius: 6px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.08); }

.arch-p5 { background: rgba(90,127,214,.18); border: 1px solid rgba(123,163,240,.25); border-left: 4px solid #7BA3F0; box-shadow: 0 6px 0 rgba(0,0,0,.15), 0 14px 36px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.08); }
.arch-p4 { background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.1); border-left: 4px solid #6690E0; box-shadow: 0 6px 0 rgba(0,0,0,.15), 0 14px 36px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.04); }
.arch-p3 { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-left: 4px solid #5A7FD6; box-shadow: 0 6px 0 rgba(0,0,0,.15), 0 14px 36px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.03); }
.arch-p2 { background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); border-left: 4px solid #4A6BC5; box-shadow: 0 6px 0 rgba(0,0,0,.15), 0 14px 36px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.02); }

.arch-gpu-biz {
  width: 100%; max-width: 720px; margin: 6px auto 0; padding: 14px 24px;
  border-radius: 14px; transform: rotateX(7deg); perspective: 800px;
  background: rgba(255,255,255,.04); border: 1.5px dashed rgba(255,255,255,.1);
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; backdrop-filter: blur(6px);
}
.arch-gpu-biz h3 { font-size: clamp(13px, 2.2vw, 15px); font-weight: 700; color: rgba(220,230,245,.85); }
.arch-gpu-biz p { font-size: 11px; color: rgba(148,163,184,.45); }

/* Tech view */
.arch-tech-grid { display: grid; grid-template-columns: 160px 1fr 160px; gap: 8px 14px; align-items: start; }
@media (max-width: 720px) {
  .arch-tech-grid { grid-template-columns: 1fr; }
  .arch-ext-col { display: flex !important; flex-direction: row !important; flex-wrap: wrap; gap: 6px; justify-content: center; }
  .arch-ext-col .arch-tn { min-width: 110px; flex: 1; }
}
.arch-tn { border-radius: 8px; padding: 10px; text-align: center; }
.arch-tn h4 { font-size: 11px; font-weight: 700; margin-bottom: 2px; }
.arch-tn p { font-size: 9px; line-height: 1.2; }
.arch-our { background: rgba(255,255,255,.06); border: 1.5px solid rgba(90,127,214,.3); color: #E2E8F0; backdrop-filter: blur(8px); }
.arch-our h4 { color: #7BA3F0; }
.arch-our p { color: rgba(148,163,184,.7); }
.arch-ext-n { background: rgba(255,255,255,.04); border: 1.5px solid rgba(255,255,255,.1); color: #CBD5E1; backdrop-filter: blur(6px); }
.arch-ext-n h4 { color: rgba(200,215,235,.9); }
.arch-ext-n p { color: rgba(148,163,184,.5); }

.arch-arrow-txt { text-align: center; color: rgba(90,127,214,.3); font-size: 9px; padding: 2px 0; font-weight: 600; letter-spacing: .3px; }
.arch-ext-col { display: flex; flex-direction: column; gap: 4px; }
.arch-ext-title { font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: rgba(90,127,214,.45); text-align: center; padding: 4px 0; }

.arch-plat-boundary {
  border: 1.5px solid rgba(90,127,214,.25); border-radius: 14px;
  padding: 14px 12px 12px; position: relative;
  display: flex; flex-direction: column; gap: 5px;
  box-shadow: 0 0 30px rgba(90,127,214,.06);
}
.arch-plat-boundary::before {
  content: 'Платформа LLMaaS'; position: absolute; top: -9px; left: 16px;
  background: #141B2D; padding: 0 8px; font-size: 9px; font-weight: 700;
  letter-spacing: 1px; color: rgba(90,127,214,.55); text-transform: uppercase;
}
.arch-tech-layer { display: flex; gap: 5px; align-items: stretch; }
.arch-tech-layer .arch-tn { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; }

.arch-sico { width: 22px; height: 22px; margin-bottom: 2px; opacity: .7; }
.arch-sico-ext { opacity: .45; }

.arch-gpu-foundation {
  margin-top: 8px; padding: 14px 12px 12px; border-radius: 10px;
  background: rgba(255,255,255,.03); border: 1.5px dashed rgba(255,255,255,.08);
  text-align: center; position: relative; backdrop-filter: blur(4px);
}
.arch-gpu-foundation::before {
  content: 'Ваша инфраструктура'; position: absolute; top: -8px; left: 16px;
  background: #141B2D; padding: 0 6px; font-size: 8px; font-weight: 700;
  letter-spacing: 1px; color: rgba(148,163,184,.4); text-transform: uppercase;
}
.arch-gpu-groups { display: flex; align-items: center; justify-content: center; gap: 32px; padding: 8px; flex-wrap: wrap; }
.arch-gpu-g { display: flex; align-items: center; gap: 8px; }
.arch-gpu-g h4 { font-size: 11px; font-weight: 700; color: rgba(200,215,235,.75); }
.arch-gpu-g p { font-size: 9px; color: rgba(148,163,184,.4); }

.arch-mon-strip {
  margin-top: 6px; padding: 8px 12px; border-radius: 7px;
  background: rgba(90,127,214,.05); border: 1px dashed rgba(90,127,214,.15);
  display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap;
  box-shadow: 0 0 16px rgba(90,127,214,.04);
}
.arch-mon-title { font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: rgba(90,127,214,.5); }
.arch-mon-item { font-size: 10px; color: rgba(148,163,184,.55); }

/* ---------- Security ---------- */

.security {
  background-color: #141B2D;
  background-image:
    radial-gradient(ellipse 600px 400px at 80% 20%, rgba(90,127,214,.15) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 25% 75%, rgba(90,127,214,.08) 0%, transparent 60%);
  color: #E2E8F0;
}

.security .label {
  color: rgba(255,255,255,0.4);
}

.security h2 {
  color: #fff;
}

.security-lead {
  max-width: 700px;
  color: rgba(255,255,255,0.8);
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.security .card {
  background: #1E2A45;
  border: none;
}

.security .card h3 {
  color: #fff;
}

.security .card p {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
}

/* ---------- Stack / Technology ---------- */

.stack-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 8px;
}

.stack-group {
  margin-bottom: 8px;
}

.stack-group-label {
  font-family: 'Unbounded', system-ui, sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: var(--text);
  margin-bottom: 12px;
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-tag {
  display: inline-block;
  background: var(--bg-alt);
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 14px;
  color: var(--text);
  line-height: 1.4;
}

.stack-tag-desc {
  color: var(--text-2);
  font-size: 12px;
}

/* ---------- About ---------- */

.about p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 16px;
  max-width: 800px;
}

.about h3 {
  font-family: 'Unbounded', system-ui, sans-serif;
  color: var(--text);
  margin-top: 32px;
  margin-bottom: 16px;
}

.about ul {
  max-width: 800px;
}

.about ul li {
  margin-bottom: 14px;
  padding-left: 20px;
  position: relative;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
}

.about ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
}

/* ---------- Pricing ---------- */

.pricing {
  text-align: center;
  padding: 48px 0;
}

.pricing h2 {
  margin-bottom: 20px;
}

.pricing p {
  color: var(--text-2);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.pricing-main {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

.pricing-note {
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 8px;
}

/* ---------- Contacts ---------- */

.contacts {
  text-align: center;
}

.contact-items {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.contact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-alt);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
  color: var(--blue);
}

.contact-label {
  font-size: 13px;
  color: var(--text-2);
  font-weight: 500;
}

.contact-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.contact-value a {
  color: var(--text);
  text-decoration: none;
}

.contact-value a:hover {
  color: var(--blue);
}

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

.footer {
  background: #141B2D;
  color: rgba(255, 255, 255, 0.7);
  padding: 56px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer h4 {
  font-family: 'Unbounded', system-ui, sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: #fff;
  margin-bottom: 16px;
}

.footer-legal {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
}

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

.footer-activities ul li {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 12px;
  padding-left: 16px;
  position: relative;
}

.footer-activities ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
}

.footer a {
  color: rgba(255, 255, 255, 0.7);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* ---------- Tablet (max-width: 1024px) ---------- */

@media (max-width: 1024px) {
  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 26px;
  }

  section {
    padding: 64px 0;
  }

  .hero {
    padding-top: 140px;
    padding-bottom: 64px;
  }

  .card-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .card-grid-3,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .arch-layers {
    grid-template-columns: repeat(2, 1fr);
  }

  .stack-groups {
    grid-template-columns: repeat(2, 1fr);
  }

  .nav {
    gap: 24px;
  }

  .nav a {
    font-size: 13px;
  }
}

/* ---------- Mobile (max-width: 768px) ---------- */

@media (max-width: 768px) {
  h1 {
    font-size: 28px;
    overflow-wrap: break-word;
    hyphens: auto;
  }

  h2 {
    font-size: 24px;
    margin-bottom: 20px;
  }

  h3 {
    font-size: 16px;
  }

  body {
    font-size: 15px;
  }

  section {
    padding: 48px 0;
  }

  .hero {
    padding-top: 120px;
    padding-bottom: 48px;
  }

  .hero-sub {
    font-size: 16px;
    margin-bottom: 40px;
  }

  .nav-toggle {
    display: none;
  }

  .nav-burger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 101;
  }

  .nav-burger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav-toggle:checked ~ .nav-burger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  }

  .nav a {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
  }

  .nav a:last-child {
    border-bottom: none;
  }

  .nav-toggle:checked ~ .nav {
    display: flex;
  }

  .card-grid-4,
  .card-grid-3,
  .card-grid-2,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .segments > .container > .card-grid-2,
  .segments > .container > .card-grid-3 {
    gap: 40px;
  }

  .arch-layers {
    grid-template-columns: 1fr;
  }

  .stack-groups {
    grid-template-columns: 1fr;
  }

  .contact-items {
    flex-direction: column;
    gap: 32px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .pricing-main {
    font-size: 18px;
  }
}