/* NextStream Core — contemporary structured creative theme */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  --color-bg: #f7f5f0;
  --color-surface: #ffffff;
  --color-surface-alt: #ede9e1;
  --color-text: #1a1a22;
  --color-text-muted: #5c5c6a;
  --color-accent: #9945ff;
  --color-accent-dark: #7a2fd4;
  --color-accent-soft: #e8d9ff;
  --color-teal: #14f195;
  --color-teal-soft: #d4faeb;
  --color-border: #d9d4ca;
  --color-error: #c0392b;
  --color-success: #1e8449;
  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-sans: 'Outfit', system-ui, sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(26, 26, 34, 0.06);
  --shadow-md: 0 8px 24px rgba(26, 26, 34, 0.1);
  --shadow-lg: 0 16px 48px rgba(26, 26, 34, 0.12);
  --transition: 0.25s ease;
  --max-width: 1200px;
  --header-height: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.25;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 1rem; }
h3 { font-size: 1.35rem; margin-bottom: 0.75rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-text);
  text-decoration: none;
}

.logo svg { width: 36px; height: 36px; }

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 1.75rem;
}

.main-nav a {
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: var(--transition);
}

/* Footer */
.site-footer {
  background: var(--color-text);
  color: #c8c4bc;
  margin-top: auto;
  padding: 3.5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-brand p { font-size: 0.9rem; margin-top: 0.75rem; max-width: 280px; }

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 1rem;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { color: #c8c4bc; font-size: 0.9rem; }
.footer-col a:hover { color: var(--color-teal); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

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

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
}

.btn-teal {
  background: var(--color-teal);
  color: var(--color-text);
  border-color: var(--color-teal);
}

.btn-teal:hover {
  background: #0fd484;
  color: var(--color-text);
}

/* Hero variants */
.hero {
  padding: 4rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.25rem;
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 1.25rem 0 2rem;
}

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

.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

.hero-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(153,69,255,0.15), rgba(20,241,149,0.1));
  pointer-events: none;
}

.hero-compact {
  text-align: center;
  padding: 3rem 0 4rem;
  background: linear-gradient(180deg, var(--color-surface-alt) 0%, var(--color-bg) 100%);
}

.hero-compact h1 { max-width: 700px; margin-inline: auto; }
.hero-compact .hero-lead { margin-inline: auto; }

/* Sections */
.section { padding: 4rem 0; }
.section-alt { background: var(--color-surface); }
.section-header { margin-bottom: 2.5rem; max-width: 640px; }
.section-header p { color: var(--color-text-muted); font-size: 1.05rem; }

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-img { aspect-ratio: 16/10; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; }

.card-body { padding: 1.5rem; }
.card-body h3 { font-size: 1.2rem; }
.card-body p { color: var(--color-text-muted); font-size: 0.95rem; margin-bottom: 1rem; }

.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

/* Feature strip */
.feature-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding: 3rem;
  background: var(--color-text);
  color: #fff;
  border-radius: var(--radius-lg);
}

.feature-item h3 {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-teal);
}

.feature-item p { font-size: 0.9rem; color: #a8a4a0; margin: 0; }

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
}

.testimonial {
  background: var(--color-surface);
  padding: 1.75rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.testimonial blockquote {
  font-style: italic;
  color: var(--color-text);
  margin-bottom: 1rem;
  font-size: 0.98rem;
}

.testimonial cite {
  font-style: normal;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.testimonial cite strong { color: var(--color-text); display: block; }

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

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 1rem;
  background: var(--color-surface);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

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

.form-error {
  color: var(--color-error);
  font-size: 0.85rem;
  margin-top: 0.35rem;
  display: none;
}

.form-group.invalid .form-error { display: block; }
.form-group.invalid input,
.form-group.invalid select,
.form-group.invalid textarea { border-color: var(--color-error); }

.form-success {
  background: var(--color-teal-soft);
  color: var(--color-success);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  display: none;
}

.form-success.visible { display: block; }

.form-failure {
  background: #fdecea;
  color: var(--color-error);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  display: none;
}

.form-failure.visible { display: block; }

/* Contact layout */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
}

.contact-info-block {
  background: var(--color-surface-alt);
  padding: 2rem;
  border-radius: var(--radius-md);
}

.contact-info-block h3 { margin-bottom: 1.25rem; }

.contact-detail {
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.contact-detail:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.contact-detail strong { display: block; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); margin-bottom: 0.25rem; }

/* Pricing */
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.pricing-table th,
.pricing-table td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.pricing-table th {
  background: var(--color-surface-alt);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pricing-table tr:last-child td { border-bottom: none; }

.pricing-note {
  background: var(--color-accent-soft);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin-top: 2rem;
  font-size: 0.95rem;
}

/* Legal pages */
.legal-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 0 5rem;
}

.legal-content h1 { margin-bottom: 0.5rem; }
.legal-content .updated { color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: 2rem; }
.legal-content h2 { font-size: 1.4rem; margin-top: 2rem; margin-bottom: 0.75rem; }
.legal-content ul, .legal-content ol { margin: 0 0 1rem 1.5rem; }
.legal-content li { margin-bottom: 0.4rem; }

.cookies-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

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

.cookies-table th { background: var(--color-surface-alt); }

/* Glossary */
.glossary-search {
  width: 100%;
  max-width: 480px;
  padding: 0.85rem 1.25rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  margin-bottom: 2rem;
}

.glossary-list { columns: 1; gap: 2rem; }

.glossary-term {
  break-inside: avoid;
  background: var(--color-surface);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  border: 1px solid var(--color-border);
}

.glossary-term dt {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-accent-dark);
  margin-bottom: 0.4rem;
}

.glossary-term dd { color: var(--color-text-muted); font-size: 0.95rem; margin: 0; }

/* Blog */
.blog-meta {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.article-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.article-content h2 { margin-top: 2rem; }
.article-content img {
  border-radius: var(--radius-md);
  margin: 2rem 0;
  box-shadow: var(--shadow-md);
}

/* Service detail */
.service-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
  margin-bottom: 3rem;
}

.service-detail-section {
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  border: 1px solid var(--color-border);
}

.service-detail-section h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-accent-dark);
  margin-bottom: 0.75rem;
}

.service-detail-section ul { margin-left: 1.25rem; }
.service-detail-section li { margin-bottom: 0.35rem; color: var(--color-text-muted); }

/* 404 */
.error-page {
  text-align: center;
  padding: 6rem 0;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-page h1 { font-size: 6rem; color: var(--color-accent); line-height: 1; }
.error-page p { color: var(--color-text-muted); margin: 1rem 0 2rem; max-width: 400px; }

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-text);
  color: #fff;
  padding: 1.25rem;
  z-index: 1000;
  transform: translateY(100%);
  transition: transform 0.4s ease;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.2);
}

.cookie-banner.visible { transform: translateY(0); }

.cookie-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  max-width: var(--max-width);
  margin: 0 auto;
  width: min(100% - 2rem, var(--max-width));
}

.cookie-inner p { font-size: 0.9rem; margin: 0; flex: 1; min-width: 240px; }
.cookie-inner a { color: var(--color-teal); }

.cookie-actions { display: flex; gap: 0.75rem; }

.cookie-actions .btn { padding: 0.55rem 1.1rem; font-size: 0.85rem; }

.btn-cookie-accept {
  background: var(--color-teal);
  color: var(--color-text);
  border: none;
}

.btn-cookie-reject {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
}

/* Script error */
.script-error {
  background: #fdecea;
  color: var(--color-error);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin: 0.5rem 0;
  display: none;
}

.script-error.visible { display: block; }

/* About team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2rem;
}

.team-member {
  text-align: center;
}

.team-member img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1rem;
  border: 3px solid var(--color-accent-soft);
}

.team-member h3 { font-size: 1.1rem; }
.team-member .role { color: var(--color-accent-dark); font-size: 0.9rem; font-weight: 500; margin-bottom: 0.5rem; }
.team-member p { font-size: 0.9rem; color: var(--color-text-muted); }

/* Breadcrumb */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  padding-top: 1.5rem;
}

.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-accent); }

/* Case study */
.case-study {
  background: var(--color-surface-alt);
  padding: 2rem;
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
}

.case-study h3 { margin-bottom: 0.75rem; }

/* Responsive */
@media (max-width: 900px) {
  .hero-split,
  .contact-layout,
  .service-hero,
  .footer-grid { grid-template-columns: 1fr; }

  .feature-strip { grid-template-columns: 1fr; }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }

  .nav-toggle { display: block; }
}

@media (min-width: 768px) {
  .glossary-list { columns: 2; }
}