/* ==========================================================================
   suoja.ai — Landing Page Styles
   Deep teal design system. Inter + JetBrains Mono. Mobile-first. No frameworks.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Palette — deep teal */
  --color-accent:        #0a6e72;
  --color-accent-hover:  #085a5e;
  --color-accent-light:  #e0f2f1;
  --color-accent-bg:     #f0fafa;
  --color-navy:          #0c1320;
  --color-navy-light:    #1a2438;
  --color-slate:         #334155;
  --color-muted:         #64748b;
  --color-subtle:        #94a3b8;
  --color-border:        rgba(45, 55, 72, 0.12);
  --color-border-strong: rgba(45, 55, 72, 0.25);
  --color-surface:       #f8fafc;
  --color-white:         #ffffff;

  /* Typography — Inter + JetBrains Mono via Google Fonts */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", monospace;

  /* Spacing scale (4px base) */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* Sizing */
  --max-width: 72rem;
  --content-width: 48rem;

  /* Borders & Shadows */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 0.75rem;
  --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(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px -1px rgba(0, 0, 0, 0.06);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}


/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-navy);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

a:focus-visible,
button:focus-visible,
details summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.025em;
}


/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--sp-6);
  padding-right: var(--sp-6);
}

section {
  padding-top: var(--sp-16);
  padding-bottom: var(--sp-16);
}

@media (min-width: 768px) {
  section {
    padding-top: var(--sp-32);
    padding-bottom: var(--sp-32);
  }
}

.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-3);
}

.section-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-3);
}

.section-heading {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  margin-bottom: var(--sp-4);
}

.section-intro {
  max-width: var(--content-width);
  margin: 0 auto var(--sp-12);
  text-align: center;
  color: var(--color-muted);
  font-size: 1.125rem;
}


/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--sp-4) var(--sp-6);
}

.nav-logo {
  display: flex;
  align-items: baseline;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-navy);
  text-decoration: none;
}

.nav-logo:hover {
  color: var(--color-navy);
}

.logo-mark {
  font-family: var(--font-mono);
  color: var(--color-navy);
}

.logo-dot {
  color: var(--color-accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

.nav-links {
  display: none;
  gap: var(--sp-8);
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-slate);
  transition: color var(--transition-fast);
}

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

/* Language toggle pill */
.lang-toggle {
  display: flex;
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  overflow: hidden;
  font-size: 0.8125rem;
  font-weight: 600;
}

.lang-toggle a {
  padding: 0.3rem 0.7rem;
  color: var(--color-muted);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.lang-toggle a.is-active {
  background: var(--color-accent);
  color: var(--color-white);
}

.lang-toggle a:not(.is-active):hover {
  background: var(--color-surface);
  color: var(--color-navy);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }
}

/* Mobile menu toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2);
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav open */
.nav-links.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--sp-6);
  gap: var(--sp-4);
  box-shadow: var(--shadow-lg);
}


/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-border-strong);
}

.btn-ghost:hover {
  border-color: var(--color-slate);
  color: var(--color-navy);
  transform: translateY(-1px);
}

.btn-sm {
  font-size: 0.8125rem;
  padding: 0.5rem 1rem;
}

.btn-lg {
  font-size: 1.0625rem;
  padding: 1rem 2rem;
}

/* Override .btn display for nav CTAs on mobile (must come after .btn) */
.nav-cta {
  display: none;
}

@media (min-width: 768px) {
  .nav-cta {
    display: inline-flex;
  }
}

.btn:disabled,
.btn[aria-busy="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}


/* --------------------------------------------------------------------------
   Hero — asymmetric 2-column
   -------------------------------------------------------------------------- */
.hero {
  padding: var(--sp-20) 0 var(--sp-16);
  background: var(--color-white);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  align-items: center;
}

@media (min-width: 768px) {
  .hero {
    padding: var(--sp-24) 0 var(--sp-20);
  }

  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-16);
  }
}

.hero-tagline {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: var(--sp-4);
}

.hero-text h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: var(--sp-6);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.hero-text h1 .accent {
  color: var(--color-accent);
}

.hero-sub {
  max-width: 38rem;
  margin-bottom: var(--sp-8);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--color-muted);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-bottom: var(--sp-4);
}

.hero-note {
  font-size: 0.875rem;
  color: var(--color-subtle);
}

/* CSS Chat Mockup */
.hero-mockup {
  position: relative;
  background: var(--color-navy);
  border-radius: var(--radius-xl);
  padding: var(--sp-6);
  box-shadow: 0 25px 50px -12px rgba(11, 18, 34, 0.25);
  min-height: 320px;
  display: none;
}

@media (min-width: 768px) {
  .hero-mockup {
    display: block;
  }
}

.mockup-topbar {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--color-navy-light);
}

.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-navy-light);
}

.mockup-dot:first-child { background: #ef4444; }
.mockup-dot:nth-child(2) { background: #f59e0b; }
.mockup-dot:nth-child(3) { background: #22c55e; }

.mockup-url {
  margin-left: var(--sp-4);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-subtle);
  background: var(--color-navy-light);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  flex: 1;
  text-align: center;
}

.chat-messages {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.chat-msg {
  max-width: 85%;
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  line-height: 1.5;
}

.chat-msg--user {
  align-self: flex-end;
  background: var(--color-accent);
  color: var(--color-white);
  border-bottom-right-radius: var(--radius-sm);
}

.chat-msg--ai {
  align-self: flex-start;
  background: var(--color-navy-light);
  color: #e2e8f0;
  border-bottom-left-radius: var(--radius-sm);
}

.chat-msg--ai .msg-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chat-input-mock {
  margin-top: var(--sp-4);
  background: var(--color-navy-light);
  border-radius: var(--radius-md);
  padding: var(--sp-3) var(--sp-4);
  color: var(--color-subtle);
  font-size: 0.8125rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-input-mock svg {
  display: inline-block;
  color: var(--color-accent);
}


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

/* Legacy pill layout (kept for compatibility) */
.trust-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3) var(--sp-4);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-slate);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  padding: 0.4rem 1rem;
  white-space: nowrap;
}

/* Legacy trust-item class (kept for kiitos.html compatibility) */
.trust-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-slate);
  white-space: nowrap;
}

.trust-item svg {
  display: inline-block;
  flex-shrink: 0;
  color: var(--color-accent);
}

/* Trust grid — structured blocks */
.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--color-border-strong);
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (min-width: 640px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.trust-block {
  background: var(--color-white);
  padding: var(--sp-5) var(--sp-6);
  text-align: center;
}

.trust-block-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--sp-1);
}

.trust-block-value {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy);
}

.trust-block-detail {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-top: var(--sp-1);
}


/* --------------------------------------------------------------------------
   Narrative (founder voice, replaces problem section)
   -------------------------------------------------------------------------- */
.narrative {
  background: var(--color-white);
}

.narrative h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  max-width: 40rem;
  margin-bottom: var(--sp-8);
}

.narrative-body {
  max-width: 40rem;
}

.narrative-body p {
  font-size: 1.0625rem;
  color: var(--color-slate);
  line-height: 1.8;
  margin-bottom: var(--sp-5);
}

.narrative-body p:last-child {
  margin-bottom: 0;
}

.narrative-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-8);
  max-width: 40rem;
}

.narrative-tags span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
}


/* --------------------------------------------------------------------------
   Problem Statement (legacy, preserved)
   -------------------------------------------------------------------------- */
.problem {
  background: var(--color-white);
}

.problem-heading {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--sp-12);
  max-width: 44rem;
  margin-left: auto;
  margin-right: auto;
}

.problem-claims {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-8);
  max-width: 56rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .problem-claims {
    grid-template-columns: repeat(3, 1fr);
  }
}

.problem-claim {
  text-align: center;
}

.problem-claim-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: #fef2f2;
  color: #dc2626;
  margin-bottom: var(--sp-4);
}

.problem-claim h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--sp-2);
}

.problem-claim p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.6;
}


/* --------------------------------------------------------------------------
   Features — alternating full-width rows
   -------------------------------------------------------------------------- */
.features {
  background: var(--color-surface);
}

.features h2 {
  text-align: center;
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: var(--sp-4);
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-8);
  align-items: center;
  margin-bottom: var(--sp-16);
}

.feature-row:last-child {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .feature-row {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-16);
    margin-bottom: var(--sp-20);
  }

  .feature-row--reversed {
    direction: rtl;
  }

  .feature-row--reversed > * {
    direction: ltr;
  }
}

.feature-text h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  margin-bottom: var(--sp-4);
}

.feature-text p {
  font-size: 1rem;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: var(--sp-4);
}

.feature-text p:last-child {
  margin-bottom: 0;
}

/* Feature visual: isolation diagram */
.feature-visual {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
}

.feature-visual svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Compact feature cards (legacy, preserved) */
.features-compact {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
  margin-top: var(--sp-16);
}

@media (min-width: 640px) {
  .features-compact {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card-compact {
  text-align: center;
  padding: var(--sp-8);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.feature-card-compact .feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--color-accent-bg);
  color: var(--color-accent);
  margin-bottom: var(--sp-4);
}

.feature-card-compact h3 {
  font-size: 1.125rem;
  margin-bottom: var(--sp-3);
}

.feature-card-compact p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* Legacy feature grid classes (preserved for compatibility) */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  padding: var(--sp-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--color-accent-bg);
  color: var(--color-accent);
  margin-bottom: var(--sp-4);
}

.feature-card h3 {
  font-size: 1.125rem;
  margin-bottom: var(--sp-3);
  color: var(--color-navy);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.6;
}


/* --------------------------------------------------------------------------
   Comparison Table
   -------------------------------------------------------------------------- */
.comparison {
  background: var(--color-white);
}

.comparison h2 {
  text-align: center;
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: var(--sp-12);
}

.comparison-table-wrap {
  max-width: 52rem;
  margin: 0 auto;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.comparison-table thead th {
  padding: var(--sp-4) var(--sp-5);
  text-align: left;
  font-weight: 700;
  font-size: 1rem;
  border-bottom: 2px solid var(--color-border-strong);
}

.comparison-table thead th:first-child {
  width: 40%;
}

.comparison-table thead th.col-public {
  color: var(--color-muted);
}

.comparison-table thead th.col-suoja {
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.comparison-table tbody td {
  padding: var(--sp-3) var(--sp-5);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.comparison-table tbody td:first-child {
  font-weight: 600;
  color: var(--color-navy);
}

.comparison-table tbody td.col-public {
  color: var(--color-muted);
}

.comparison-table tbody td.col-suoja {
  color: var(--color-navy);
  background: var(--color-accent-bg);
  font-weight: 500;
}

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

.check-icon {
  color: var(--color-accent);
  vertical-align: middle;
}

.cross-icon {
  color: #dc2626;
  vertical-align: middle;
}


/* --------------------------------------------------------------------------
   Architecture — dark background
   -------------------------------------------------------------------------- */
.architecture {
  background: var(--color-navy);
  color: var(--color-white);
}

.architecture h2 {
  text-align: center;
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: var(--sp-4);
}

.architecture .section-sub {
  text-align: center;
  color: var(--color-subtle);
  font-size: 1.0625rem;
  max-width: 40rem;
  margin: 0 auto var(--sp-12);
}

.arch-diagram {
  max-width: 56rem;
  margin: 0 auto var(--sp-16);
  display: flex;
  justify-content: center;
}

.arch-diagram svg {
  display: block;
  max-width: 100%;
  height: auto;
}

.arch-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-8);
  max-width: 52rem;
  margin: 0 auto;
  text-align: center;
}

@media (min-width: 640px) {
  .arch-stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

.arch-stat-number {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-accent-light);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: var(--sp-2);
}

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


/* --------------------------------------------------------------------------
   How It Works (legacy, preserved)
   -------------------------------------------------------------------------- */
.how-it-works {
  background: var(--color-surface);
}

.how-it-works h2 {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: var(--sp-12);
}

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-8);
  max-width: 56rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-10);
  }
}

.step {
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--sp-4);
}

.step h3 {
  font-size: 1.125rem;
  margin-bottom: var(--sp-3);
}

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


/* --------------------------------------------------------------------------
   Pricing
   -------------------------------------------------------------------------- */
.pricing {
  background: var(--color-surface);
}

.pricing h2 {
  text-align: center;
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: var(--sp-4);
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
  max-width: 64rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
  }
}

.pricing-card {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--sp-8);
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.pricing-card--popular {
  border-top: 3px solid var(--color-accent);
  box-shadow: var(--shadow-md);
}

.pricing-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 1rem;
  border-radius: 9999px;
}

.pricing-header {
  text-align: center;
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--sp-6);
}

.pricing-header h3 {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-4);
  color: var(--color-navy);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--sp-1);
}

.price-amount {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-navy);
  letter-spacing: -0.03em;
}

.price-currency {
  font-size: 1.125rem;
  color: var(--color-muted);
  font-weight: 500;
}

.price-vat {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-subtle);
  margin-top: var(--sp-2);
}

.pricing-estimate {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-top: var(--sp-2);
  font-style: italic;
}

.pricing-features {
  flex: 1;
  margin-bottom: var(--sp-8);
}

.pricing-features li {
  padding: var(--sp-2) 0;
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.9375rem;
  color: var(--color-slate);
}

.pricing-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent);
}

.pricing-card .btn {
  width: 100%;
}

.pricing-trust {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-subtle);
  margin-top: var(--sp-3);
}


/* --------------------------------------------------------------------------
   Company
   -------------------------------------------------------------------------- */
.company {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.company h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: var(--sp-8);
}

.company-content {
  max-width: 40rem;
}

.company-content p {
  font-size: 1rem;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: var(--sp-4);
}

.company-facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4) var(--sp-8);
  margin-top: var(--sp-6);
  font-size: 0.875rem;
  color: var(--color-slate);
}

.company-fact {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-weight: 500;
}

.company-fact svg {
  display: inline-block;
  flex-shrink: 0;
  color: var(--color-accent);
}


/* --------------------------------------------------------------------------
   FAQ
   -------------------------------------------------------------------------- */
.faq {
  background: var(--color-white);
}

.faq h2 {
  text-align: center;
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: var(--sp-12);
}

.faq-list {
  max-width: var(--content-width);
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) 0;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-navy);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-fast);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-muted);
  flex-shrink: 0;
  margin-left: var(--sp-4);
  transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
  content: "\2212";
}

.faq-item summary:hover {
  color: var(--color-accent);
}

.faq-answer {
  padding-bottom: var(--sp-5);
}

.faq-answer p {
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}


/* --------------------------------------------------------------------------
   CTA
   -------------------------------------------------------------------------- */
.cta {
  background: var(--color-navy);
  text-align: center;
}

.cta h2 {
  color: var(--color-white);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: var(--sp-4);
}

.cta p {
  color: var(--color-subtle);
  font-size: 1.125rem;
  margin-bottom: var(--sp-8);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.cta .btn-primary {
  background: var(--color-white);
  color: var(--color-navy);
  border-color: var(--color-white);
}

.cta .btn-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  color: var(--color-navy);
}


/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-navy);
  border-top: 1px solid var(--color-navy-light);
  padding: var(--sp-10) 0 var(--sp-8);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  align-items: center;
  padding-bottom: var(--sp-8);
  border-bottom: 1px solid var(--color-navy-light);
}

@media (min-width: 640px) {
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-brand {
  text-align: center;
}

@media (min-width: 640px) {
  .footer-brand {
    text-align: left;
  }
}

.footer-brand .logo-mark {
  color: var(--color-white);
  font-size: 1.25rem;
  font-weight: 700;
}

.footer-company {
  color: var(--color-subtle);
  font-size: 0.875rem;
  margin-top: var(--sp-1);
}

.footer-tagline {
  color: var(--color-subtle);
  font-size: 0.875rem;
  margin-top: var(--sp-2);
}

.footer-mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: var(--sp-3);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-6);
  justify-content: center;
}

.footer-links a {
  color: var(--color-subtle);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--sp-6);
  text-align: center;
}

.footer-bottom p {
  color: var(--color-muted);
  font-size: 0.8125rem;
}


/* --------------------------------------------------------------------------
   Legal pages (privacy, terms, kiitos)
   -------------------------------------------------------------------------- */
.legal-page {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--sp-16) var(--sp-6) var(--sp-24);
}

.legal-page h1 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: var(--sp-4);
}

.legal-page .legal-meta {
  color: var(--color-muted);
  font-size: 0.875rem;
  margin-bottom: var(--sp-10);
}

.legal-page h2 {
  font-size: 1.375rem;
  margin-top: var(--sp-10);
  margin-bottom: var(--sp-4);
}

.legal-page h3 {
  font-size: 1.125rem;
  margin-top: var(--sp-6);
  margin-bottom: var(--sp-3);
}

.legal-page p {
  margin-bottom: var(--sp-4);
  color: var(--color-slate);
  line-height: 1.7;
}

.legal-page ul,
.legal-page ol {
  margin-bottom: var(--sp-4);
  padding-left: 1.5rem;
}

.legal-page ul {
  list-style: disc;
}

.legal-page ol {
  list-style: decimal;
}

.legal-page li {
  margin-bottom: var(--sp-2);
  color: var(--color-slate);
  line-height: 1.6;
}

.legal-page a {
  color: var(--color-accent);
}

.legal-page a:hover {
  text-decoration: underline;
}


/* --------------------------------------------------------------------------
   Thank You page (kiitos)
   -------------------------------------------------------------------------- */
.thankyou-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--sp-16) var(--sp-6);
}

.thankyou-content {
  max-width: 32rem;
}

.thankyou-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: #dcfce7;
  color: #16a34a;
  margin-bottom: var(--sp-6);
}

.thankyou-content h1 {
  font-size: 2rem;
  margin-bottom: var(--sp-4);
}

.thankyou-content p {
  color: var(--color-muted);
  margin-bottom: var(--sp-4);
  line-height: 1.7;
}

.thankyou-content .btn {
  margin-top: var(--sp-6);
}

.thankyou-icon--spinner {
  background: var(--color-accent-bg);
  color: var(--color-accent);
  animation: spin 1.5s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.credential-box {
  margin: var(--sp-6) 0;
  padding: var(--sp-5);
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
}

.credential-url {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-accent);
  word-break: break-all;
}

.credential-url:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.credential-hint {
  font-size: 0.875rem;
  color: var(--color-slate);
  font-style: italic;
}


/* --------------------------------------------------------------------------
   Form elements (login, recovery, suspended pages)
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--sp-4);
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: var(--sp-2);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-navy);
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder {
  color: var(--color-subtle);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(10, 110, 114, 0.15);
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
}

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

.status-message {
  margin-top: var(--sp-4);
  padding: var(--sp-4);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  text-align: center;
}

.status-message--success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.status-message--error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.status-message--info {
  background: var(--color-accent-bg);
  color: var(--color-accent-hover);
  border: 1px solid var(--color-accent);
}

/* Warning icon variant (suspended pages) */
.thankyou-icon--warning {
  background: #fef9c3;
  color: #a16207;
}

/* Bottom links in thankyou pages */
.thankyou-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: center;
  margin-top: var(--sp-6);
}

.thankyou-links a {
  font-size: 0.9375rem;
  font-weight: 500;
}

.thankyou-content .form-group {
  text-align: center;
}

.thankyou-content .form-group label {
  text-align: center;
}


/* --------------------------------------------------------------------------
   Checkout error
   -------------------------------------------------------------------------- */
.checkout-error {
  display: none;
  margin-top: var(--sp-4);
  padding: var(--sp-4);
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  text-align: center;
}

.checkout-error.is-visible {
  display: block;
}


/* --------------------------------------------------------------------------
   Skip to content (accessibility)
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-4);
  background: var(--color-accent);
  color: var(--color-white);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-sm);
  z-index: 200;
  font-size: 0.875rem;
  font-weight: 600;
}

.skip-link:focus {
  top: var(--sp-4);
}


/* --------------------------------------------------------------------------
   Print
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .nav-toggle,
  .cta,
  .hero-actions,
  .hero-mockup,
  .pricing-card .btn {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }

  section {
    padding: 1rem 0;
  }
}