/* =============================================
   OPTONOMOUS — Proliferate-Inspired Design
   Restrained black/white/gray, typography-driven
   ============================================= */

:root {
  /* --- Type Scale --- */
  --text-xs:   clamp(0.6875rem, 0.65rem + 0.2vw, 0.8125rem);
  --text-sm:   clamp(0.8125rem, 0.78rem + 0.2vw, 0.9375rem);
  --text-base: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
  --text-lg:   clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
  --text-xl:   clamp(1.375rem, 1.1rem + 1vw, 2rem);
  --text-2xl:  clamp(1.75rem, 1rem + 2.5vw, 3.25rem);
  --text-hero: clamp(2.75rem, 1rem + 5.5vw, 6rem);

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

  /* --- Radius --- */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* --- Content Widths --- */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1140px;

  /* --- Fonts --- */
  --font-display: 'Instrument Serif', 'Georgia', serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}


/* =============================================
   LIGHT THEME (default)
   ============================================= */
:root, [data-theme="light"] {
  --color-bg:          #ffffff;
  --color-bg-alt:      #f5f5f5;
  --color-surface:     #fafafa;
  --color-border:      #e5e5e5;
  --color-border-subtle: #eeeeee;
  --color-text:        #0a0a0a;
  --color-text-secondary: #555555;
  --color-text-tertiary: #999999;
  --color-text-inverse: #ffffff;
  --color-accent:      #0a0a0a;
  --color-accent-hover: #333333;
  --color-success:     #5E6AD2;
  --color-warning:     #8A8F9A;
  --color-error:       #C2553A;

  /* Signature accent — indigo-violet */
  --color-brand:       #5E6AD2;
  --color-brand-muted: rgba(94,106,210,0.10);
  --color-brand-text:  #4B54A6;
  /* Tinted status (monochrome-first) */
  --color-positive:    #5E6AD2;
  --color-positive-bg: rgba(94,106,210,0.08);
  --color-negative:    #C2553A;
  --color-negative-bg: rgba(194,85,58,0.08);
  --color-caution:     #B08C3E;
  --color-caution-bg:  rgba(176,140,62,0.08);
  --color-neutral:     #8A8F9A;
  --color-neutral-bg:  rgba(138,143,154,0.08);
  --color-info:        #4B8BBE;
  --color-info-bg:     rgba(75,139,190,0.08);
}

/* =============================================
   DARK THEME
   ============================================= */
[data-theme="dark"] {
  --color-bg:          #0a0a0a;
  --color-bg-alt:      #141414;
  --color-surface:     #1a1a1a;
  --color-border:      #2a2a2a;
  --color-border-subtle: #1e1e1e;
  --color-text:        #ebebeb;
  --color-text-secondary: #a0a0a0;
  --color-text-tertiary: #666666;
  --color-text-inverse: #0a0a0a;
  --color-accent:      #ebebeb;
  --color-accent-hover: #cccccc;
  --color-success:     #7C85E0;
  --color-warning:     #A0A4B0;
  --color-error:       #D4745D;

  --color-brand:       #7C85E0;
  --color-brand-muted: rgba(124,133,224,0.12);
  --color-brand-text:  #9BA2F0;
  --color-positive:    #7C85E0;
  --color-positive-bg: rgba(124,133,224,0.10);
  --color-negative:    #D4745D;
  --color-negative-bg: rgba(212,116,93,0.10);
  --color-caution:     #C9A94E;
  --color-caution-bg:  rgba(201,169,78,0.10);
  --color-neutral:     #A0A4B0;
  --color-neutral-bg:  rgba(160,164,176,0.10);
  --color-info:        #6AADDB;
  --color-info-bg:     rgba(106,173,219,0.10);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:          #0a0a0a;
    --color-bg-alt:      #141414;
    --color-surface:     #1a1a1a;
    --color-border:      #2a2a2a;
    --color-border-subtle: #1e1e1e;
    --color-text:        #ebebeb;
    --color-text-secondary: #a0a0a0;
    --color-text-tertiary: #666666;
    --color-text-inverse: #0a0a0a;
    --color-accent:      #ebebeb;
    --color-accent-hover: #cccccc;
    --color-success:     #7C85E0;
    --color-warning:     #A0A4B0;
    --color-error:       #D4745D;

    --color-brand:       #7C85E0;
    --color-brand-muted: rgba(124,133,224,0.12);
    --color-brand-text:  #9BA2F0;
    --color-positive:    #7C85E0;
    --color-positive-bg: rgba(124,133,224,0.10);
    --color-negative:    #D4745D;
    --color-negative-bg: rgba(212,116,93,0.10);
    --color-caution:     #C9A94E;
    --color-caution-bg:  rgba(201,169,78,0.10);
    --color-neutral:     #A0A4B0;
    --color-neutral-bg:  rgba(160,164,176,0.10);
    --color-info:        #6AADDB;
    --color-info-bg:     rgba(106,173,219,0.10);
  }
}


/* =============================================
   LAYOUT
   ============================================= */

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  height: 56px;
  display: flex;
  align-items: center;
  padding: 0 var(--space-8);
}

.header-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
}

.logo-text {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* --- Mobile menu --- */
.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--color-text);
  cursor: pointer;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 56px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: var(--color-bg);
  padding: var(--space-6) var(--space-5);
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  color: var(--color-text-tertiary);
  transition: color var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-text);
}


/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              border-color var(--transition-interactive);
  line-height: 1.4;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border: 1px solid var(--color-accent);
}

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

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-text-tertiary);
}


/* =============================================
   HERO
   ============================================= */
.hero {
  padding: clamp(var(--space-16), 10vw, var(--space-24)) var(--space-8) clamp(var(--space-12), 6vw, var(--space-20));
  text-align: center;
}

.hero-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin-bottom: var(--space-6);
  color: var(--color-text);
  font-style: italic;
}

.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto var(--space-8);
  line-height: 1.6;
}

.hero-ctas {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}


/* =============================================
   SECTIONS
   ============================================= */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-24)) var(--space-8);
}

.section.alt {
  background: var(--color-bg);
}



.section-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}

.section-center {
  text-align: center;
}

.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-body);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.section-desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 560px;
  line-height: 1.6;
}

.section-center .section-desc {
  margin: 0 auto var(--space-12);
}


/* =============================================
   KPI ROW
   ============================================= */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.kpi {
  padding: var(--space-8) var(--space-6);
  text-align: center;
  border-right: 1px solid var(--color-border);
}

.kpi:last-child {
  border-right: none;
}

.kpi-value {
  font-family: var(--font-body);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.kpi-label {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-2);
  font-weight: 500;
}


/* =============================================
   NUMBERED STEP CARDS (How It Works)
   ============================================= */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.step-card {
  padding: var(--space-8) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  margin-bottom: var(--space-5);
}

.step-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.step-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}


/* =============================================
   FEATURE CARDS (2-column)
   ============================================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.feature-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.feature-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
}

.feature-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.feature-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.tag {
  font-size: 0.6875rem;
  padding: 3px var(--space-2);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-tertiary);
  font-weight: 500;
}


/* =============================================
   ARCHITECTURE — Pipeline
   ============================================= */
.arch-pipeline {
  display: flex;
  align-items: stretch;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.arch-step {
  flex: 1;
  padding: var(--space-6) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  border-right: 1px solid var(--color-border);
}

.arch-step:last-of-type {
  border-right: none;
}

.arch-step-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.arch-step-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.arch-step-items span {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.3;
}

.arch-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-1);
  flex-shrink: 0;
  color: var(--color-text-tertiary);
}

.arch-arrow svg {
  width: 16px;
  height: 16px;
  opacity: 0.35;
}

/* --- Logo Banner (Proliferate-style) --- */
.logo-banner {
  text-align: center;
  padding: var(--space-10) var(--space-6);
  background: var(--color-bg-alt);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.logo-banner-title {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.logo-banner-desc {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  max-width: 480px;
  margin: 0 auto var(--space-8);
  line-height: 1.5;
}

.logo-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-6) var(--space-8);
}

.logo-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-tertiary);
  white-space: nowrap;
}

.logo-item svg {
  display: block;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  opacity: 0.55;
}


.tech-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.tech-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.tech-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}


/* =============================================
   WORKFLOW CARDS
   ============================================= */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.workflow-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.workflow-header {
  padding: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.workflow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  flex-shrink: 0;
}

.workflow-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
}

.workflow-steps {
  padding: 0;
  list-style: none;
}

.workflow-steps li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.workflow-steps li:last-child {
  border-bottom: none;
}

.wf-step-num {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  padding-top: 2px;
  font-weight: 500;
}


/* =============================================
   DASHBOARD MOCK
   ============================================= */
.dashboard-mock {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: visible;
}

.dash-toolbar {
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.dash-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dash-dot.red { background: #ef4444; }
.dash-dot.yellow { background: #eab308; }
.dash-dot.green { background: #22c55e; }

.dash-url {
  flex: 1;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  font-family: var(--font-mono);
  margin-left: var(--space-2);
}

.dash-content {
  padding: var(--space-6);
}

.dash-tabs {
  display: flex;
  gap: 0;
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.dash-tab {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-tertiary);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  transition: color var(--transition-interactive);
}

.dash-tab.active {
  color: var(--color-text);
  border-bottom-color: var(--color-text);
}

.dash-tab:hover:not(.active) {
  color: var(--color-text-secondary);
}

.dash-kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.dash-kpi {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.dash-kpi-label {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-1);
  font-weight: 500;
}

.dash-kpi-value {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: 800;
  font-variant-numeric: tabular-nums lining-nums;
  color: var(--color-text);
}

.dash-kpi-delta {
  font-size: var(--text-xs);
  font-weight: 500;
  margin-top: var(--space-1);
}

.dash-kpi-delta.positive { color: var(--color-positive); }
.dash-kpi-delta.negative { color: var(--color-negative); }
.dash-kpi-delta.neutral { color: var(--color-neutral); }

.dash-table {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.dash-table thead th {
  background: var(--color-bg-alt);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.dash-table tbody td {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.status-badge.pending { color: var(--color-warning); }
.status-badge.pending .status-dot { background: var(--color-warning); }
.status-badge.approved { color: var(--color-success); }
.status-badge.approved .status-dot { background: var(--color-success); }
.status-badge.escalated { color: var(--color-error); }
.status-badge.escalated .status-dot { background: var(--color-error); }

.action-btns { display: flex; gap: var(--space-2); }

.action-btn {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  transition: border-color var(--transition-interactive), color var(--transition-interactive);
}

.action-btn:hover {
  border-color: var(--color-text-tertiary);
  color: var(--color-text);
}


/* =============================================
   TIMELINE
   ============================================= */
.timeline {
  position: relative;
  padding-left: var(--space-10);
  max-width: 700px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-6);
  padding: var(--space-5) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-10) + 10px);
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
}

.timeline-duration {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  font-weight: 500;
  margin-bottom: 2px;
}

.timeline-item h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--color-text);
}

.timeline-item p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}


/* =============================================
   STRETCH / ROADMAP
   ============================================= */
.stretch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.stretch-item {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.stretch-item h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.stretch-item p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}


/* =============================================
   CTA BANNER
   ============================================= */
.cta-banner {
  text-align: center;
  padding: clamp(var(--space-16), 8vw, var(--space-24)) var(--space-8);
  position: relative;
  overflow: hidden;
}

.cta-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-body);
  font-size: clamp(4rem, 12vw, 14rem);
  font-weight: 900;
  color: var(--color-border);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.03em;
  opacity: 0.5;
}

.cta-banner h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  font-style: italic;
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
}

.cta-banner p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  position: relative;
  z-index: 1;
}


/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) var(--space-8) var(--space-8);
}

.footer-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

.footer-brand .logo-text {
  margin-bottom: var(--space-3);
  display: block;
}

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  max-width: 280px;
}

.footer-col h4 {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer-col a:hover {
  color: var(--color-text);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.footer-bottom p,
.footer-bottom a {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

.footer-bottom a {
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer-bottom a:hover {
  color: var(--color-text-secondary);
}


/* =============================================
   TAB PANELS
   ============================================= */
.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}


/* =============================================
   PRICING
   ============================================= */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.pricing-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: left;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--color-accent);
  border-width: 2px;
}

.pricing-badge {
  position: absolute;
  top: calc(-1 * var(--space-3));
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 3px var(--space-3);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-tier {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.pricing-price {
  font-family: var(--font-body);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.pricing-period {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-tertiary);
}

.pricing-note {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.pricing-features li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  line-height: 1.4;
}

.pricing-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text-tertiary);
  flex-shrink: 0;
  margin-top: 6px;
}

.pricing-card.featured .pricing-features li::before {
  background: var(--color-accent);
}

.pricing-overage {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-6);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-border);
  line-height: 1.5;
}

.pricing-addons {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.pricing-addons h3 {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-6);
}

.addons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.addon-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.addon-price {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 800;
}

.addon-name {
  font-size: var(--text-sm);
  font-weight: 600;
}

.addon-desc {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  line-height: 1.4;
}


/* =============================================
   ANIMATIONS
   ============================================= */
/* Scroll-triggered fade-in */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.fade-in:nth-child(2) { transition-delay: 0.08s; }
.fade-in:nth-child(3) { transition-delay: 0.16s; }
.fade-in:nth-child(4) { transition-delay: 0.24s; }
.fade-in:nth-child(5) { transition-delay: 0.32s; }
.fade-in:nth-child(6) { transition-delay: 0.4s; }


/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: flex; }
  .site-header { padding: 0 var(--space-4); }
  .section { padding-left: var(--space-4); padding-right: var(--space-4); }
  .hero { padding-left: var(--space-4); padding-right: var(--space-4); }

  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .kpi { border-bottom: 1px solid var(--color-border); }
  .kpi:nth-child(2) { border-right: none; }

  .steps-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .workflow-grid { grid-template-columns: 1fr; }
  .stretch-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .addons-grid { grid-template-columns: 1fr; }

  .arch-pipeline { flex-direction: column; }
  .arch-step { border-right: none; border-bottom: 1px solid var(--color-border); }
  .arch-step:last-of-type { border-bottom: none; }
  .arch-arrow { padding: var(--space-2) 0; transform: rotate(90deg); }
  .dash-kpis { grid-template-columns: repeat(2, 1fr); }

  /* Dashboard mobile fix */
  .dashboard-mock { border-radius: var(--radius-md); }
  .dash-content { padding: var(--space-4); }
  .dash-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; gap: 0; flex-wrap: nowrap; scrollbar-width: none; -ms-overflow-style: none; }
  .dash-tabs::-webkit-scrollbar { display: none; }
  .dash-tab { white-space: nowrap; padding: var(--space-2) var(--space-4); font-size: 13px; flex-shrink: 0; }
  .dash-toolbar { padding: var(--space-2) var(--space-3); }
  .dash-url { font-size: 10px; }

  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-3); text-align: center; }

  .timeline { padding-left: var(--space-8); }
  .timeline-item::before { left: calc(-1 * var(--space-8) + 10px); }
}

@media (max-width: 480px) {
  .kpi-row { grid-template-columns: 1fr; }
  .kpi { border-right: none; }
  .dash-kpis { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr; }
}