/* ============================================================
   FrugalNova - Full Stack Development Scoped Styles
   Theme: High-Performance Enterprise Light Mode (Navy & Magenta-Rose)
   ============================================================ */

.fullstack-page {
  background-color: var(--clr-surface, #ffffff);
  color: var(--clr-text, #1c1c1e);
  font-family: var(--font-sans, 'Inter', sans-serif);
  overflow-x: hidden;
}

/* ------------- HERO SECTION (STRICT RULE: STATIC, MINIMAL, CENTERED) ------------- */
.fs-hero {
  padding: 140px 24px 80px 24px;
  background: radial-gradient(circle at top center, rgba(181, 36, 106, 0.02) 0%, rgba(26, 46, 68, 0.01) 100%), var(--clr-surface);
  border-bottom: 1px solid var(--clr-border, #e8e4dc);
  text-align: center;
  position: relative;
}

.fs-hero-content {
  max-width: 840px;
  margin: 0 auto;
}

.fs-hero-label {
  display: inline-block;
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--clr-accent, #B5246A);
  background: var(--clr-accent-pale, #FAE8F1);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 24px;
  border: 1px solid rgba(181, 36, 106, 0.15);
}

.fs-hero-title {
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--clr-primary, #1a2e44);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.fs-hero-desc {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--clr-text-muted, #4a4a58);
  max-width: 700px;
  margin: 0 auto 36px auto;
}

.fs-hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* ------------- SECTION BUILD GENERALS ------------- */
.fs-section {
  padding: 96px 24px;
  border-bottom: 1px solid var(--clr-border, #e8e4dc);
}

.fs-section-header {
  max-width: 800px;
  margin: 0 auto 56px auto;
  text-align: center;
}

.fs-sec-label {
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--clr-accent, #B5246A);
  margin-bottom: 12px;
  display: block;
}

.fs-sec-title {
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--clr-primary, #1a2e44);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.fs-sec-desc {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--clr-text-muted, #4a4a58);
  max-width: 600px;
  margin: 16px auto 0 auto;
}

/* ------------- SECTION 1: FRONTEND ENGINEERING & UX SHOWCASE ------------- */
.fs-frontend {
  background-color: var(--clr-surface, #ffffff);
}

.fs-frontend-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 64px;
  align-items: center;
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
}

.fs-frontend-content h3 {
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: 1.85rem;
  font-weight: 600;
  color: var(--clr-primary, #1a2e44);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.fs-frontend-content p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--clr-text-muted, #4a4a58);
  margin-bottom: 32px;
}

/* Interactive Component Visualizer Card */
.fs-component-visual {
  background: var(--clr-surface-2, #f8f7f4);
  border: 1px solid var(--clr-border, #e8e4dc);
  border-radius: var(--radius-lg, 20px);
  padding: 24px;
  box-shadow: 0 10px 30px var(--clr-shadow, rgba(26, 46, 68, 0.05));
  position: relative;
}

.fs-viewport-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--clr-border, #e8e4dc);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.fs-viewport-dots {
  display: flex;
  gap: 6px;
}

.fs-viewport-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--clr-border, #e8e4dc);
}

.fs-viewport-dots span:nth-child(1) { background-color: #ff5f56; }
.fs-viewport-dots span:nth-child(2) { background-color: #ffbd2e; }
.fs-viewport-dots span:nth-child(3) { background-color: #27c93f; }

.fs-viewport-title {
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-headings, 'Outfit', sans-serif);
  color: var(--clr-primary, #1a2e44);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.fs-viewport-status {
  font-size: 0.75rem;
  font-weight: 600;
  color: #10b981;
  background-color: rgba(16, 185, 129, 0.1);
  padding: 2px 10px;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.fs-viewport-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #10b981;
  display: block;
}

/* Living Mockup UI Container */
.fs-mockup-app {
  background: var(--clr-surface, #ffffff);
  border: 1px solid var(--clr-border, #e8e4dc);
  border-radius: var(--radius-md, 12px);
  padding: 20px;
}

.fs-mockup-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.fs-mockup-tab {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--clr-surface-2, #f8f7f4);
  color: var(--clr-text-muted, #4a4a58);
  border: 1px solid var(--clr-border, #e8e4dc);
  transition: all var(--dur-fast, 180ms) var(--ease-out);
  cursor: pointer;
}

.fs-mockup-tab.active {
  background: var(--clr-primary, #1a2e44);
  color: var(--clr-surface, #ffffff);
  border-color: var(--clr-primary, #1a2e44);
}

.fs-mockup-tab:hover:not(.active) {
  border-color: var(--clr-accent, #B5246A);
  color: var(--clr-primary, #1a2e44);
}

.fs-mockup-screen {
  border: 1px dashed var(--clr-border, #e8e4dc);
  border-radius: 6px;
  padding: 16px;
  background-color: var(--clr-surface-2, #f8f7f4);
}

.fs-state-node {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--clr-surface, #ffffff);
  border: 1px solid var(--clr-border, #e8e4dc);
  border-radius: 6px;
  margin-bottom: 10px;
  transition: transform var(--dur-fast, 180ms) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.fs-state-node:hover {
  transform: translateX(4px);
  border-color: var(--clr-accent, #B5246A);
}

.fs-node-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.fs-node-bullet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--clr-accent, #B5246A);
}

.fs-node-info strong {
  font-size: 0.85rem;
  color: var(--clr-primary, #1a2e44);
}

.fs-node-info span {
  font-size: 0.75rem;
  color: var(--clr-text-light, #666676);
}

.fs-node-badge {
  font-size: 0.7rem;
  font-weight: 500;
  background: var(--clr-accent-pale, #FAE8F1);
  color: var(--clr-accent, #B5246A);
  padding: 2px 8px;
  border-radius: 4px;
}

.fs-node-badge.green {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
}

.fs-node-badge.blue {
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
}

/* Feature grid stacked inside content */
.fs-frontend-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.fs-frontend-item {
  display: flex;
  gap: 14px;
}

.fs-frontend-item i {
  font-size: 1.35rem;
  color: var(--clr-accent, #B5246A);
  margin-top: 2px;
  background: var(--clr-accent-pale, #FAE8F1);
  padding: 6px;
  border-radius: 6px;
  flex-shrink: 0;
}

.fs-frontend-item h4 {
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--clr-primary, #1a2e44);
  margin-bottom: 4px;
}

.fs-frontend-item p {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--clr-text-light, #666676);
  margin-bottom: 0;
}

/* ------------- SECTION 2: HIGH-PERFORMANCE BACKEND & API GRID ------------- */
.fs-backend {
  background-color: var(--clr-surface-2, #f8f7f4);
}

.fs-backend-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
}

.fs-backend-content h3 {
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: 1.85rem;
  font-weight: 600;
  color: var(--clr-primary, #1a2e44);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.fs-backend-content p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--clr-text-muted, #4a4a58);
  margin-bottom: 32px;
}

/* High-fidelity Technical API Console Visualizer */
.fs-terminal-visual {
  background: #1e1e24; /* Sleek dark-mode console */
  border-radius: var(--radius-lg, 20px);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 24px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.15);
  font-family: 'Courier New', Courier, monospace;
}

.fs-terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.fs-term-title {
  color: rgba(255,255,255,0.7);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.fs-term-method {
  font-size: 0.75rem;
  background-color: #10b981;
  color: #ffffff;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: bold;
}

.fs-term-latency {
  font-size: 0.75rem;
  color: #3b82f6;
  background-color: rgba(59, 130, 246, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.fs-terminal-flow {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.fs-flow-step {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background-color: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 6px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.85);
  transition: border-color var(--dur-fast) var(--ease-out);
}

.fs-flow-step:hover {
  border-color: var(--clr-accent, #B5246A);
}

.fs-step-name {
  display: flex;
  align-items: center;
  gap: 8px;
}

.fs-step-name i {
  color: var(--clr-accent, #B5246A);
}

.fs-step-status {
  font-size: 0.7rem;
  color: #10b981;
}

/* Simulated Pretty JSON Console */
.fs-terminal-json {
  background-color: rgba(0,0,0,0.2);
  border-radius: 6px;
  padding: 14px;
  font-size: 0.75rem;
  color: #f8f8f2;
  line-height: 1.5;
  overflow-x: auto;
}

.fs-json-kw { color: #f92672; }
.fs-json-str { color: #e6db74; }
.fs-json-num { color: #ae81ff; }
.fs-json-bool { color: #66d9ef; }

/* Backend feature checklist */
.fs-backend-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}

.fs-backend-item {
  background: var(--clr-surface, #ffffff);
  border: 1px solid var(--clr-border, #e8e4dc);
  border-radius: var(--radius-md, 12px);
  padding: 20px;
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.fs-backend-item:hover {
  transform: translateY(-3px);
  border-color: rgba(181, 36, 106, 0.2);
}

.fs-backend-item h4 {
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--clr-primary, #1a2e44);
  margin-bottom: 6px;
}

.fs-backend-item p {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--clr-text-light, #666676);
  margin-bottom: 0;
}

/* ------------- SECTION 3: CLOUD & DATABASE ARCHITECTURE ------------- */
.fs-database {
  background-color: var(--clr-surface, #ffffff);
}

.fs-db-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
}

/* Columnar metric cards */
.fs-db-card {
  background: var(--clr-surface-2, #f8f7f4);
  border: 1px solid var(--clr-border, #e8e4dc);
  border-radius: var(--radius-lg, 20px);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: transform var(--dur-med, 350ms) var(--ease-out), border-color var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.fs-db-card:hover {
  transform: translateY(-6px);
  border-color: rgba(181, 36, 106, 0.25);
  box-shadow: 0 12px 30px var(--clr-shadow, rgba(26, 46, 68, 0.06));
}

.fs-db-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--clr-surface, #ffffff);
  border: 1px solid var(--clr-border, #e8e4dc);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--clr-accent, #B5246A);
  margin-bottom: 24px;
}

.fs-db-card h4 {
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--clr-primary, #1a2e44);
  margin-bottom: 8px;
}

.fs-db-card p {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--clr-text-light, #666676);
  margin-bottom: 24px;
  flex-grow: 1;
}

.fs-db-metrics {
  border-top: 1px solid var(--clr-border, #e8e4dc);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fs-db-metric-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.fs-metric-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 600;
}

.fs-metric-label {
  color: var(--clr-text-muted, #4a4a58);
}

.fs-metric-val {
  color: var(--clr-primary, #1a2e44);
}

/* Custom Colored Metric Level Bar */
.fs-metric-bar {
  height: 6px;
  background-color: var(--clr-surface-3, #f0ede6);
  border-radius: 100px;
  position: relative;
  overflow: hidden;
}

.fs-metric-level {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--clr-primary) 0%, var(--clr-accent) 100%);
  border-radius: 100px;
}

.fs-db-card:nth-child(2) .fs-metric-level {
  background: linear-gradient(90deg, #10b981 0%, #059669 100%);
}

.fs-db-card:nth-child(3) .fs-metric-level {
  background: linear-gradient(90deg, #3b82f6 0%, #1d4ed8 100%);
}

.fs-db-card:nth-child(4) .fs-metric-level {
  background: linear-gradient(90deg, #f59e0b 0%, #d97706 100%);
}

/* ------------- SECTION 4: COMPACT CTA SECTION ------------- */
.fs-cta {
  background-color: var(--clr-surface-2, #f8f7f4);
  text-align: center;
}

.fs-cta-box {
  background: linear-gradient(135deg, var(--clr-primary, #1a2e44) 0%, #2c4a6e 100%);
  border-radius: var(--radius-xl, 32px);
  padding: 72px 48px;
  color: var(--clr-surface, #ffffff);
  max-width: 960px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(26, 46, 68, 0.15);
}

/* Subtle accent glow bubble inside CTA */
.fs-cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(181, 36, 106, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.fs-cta-box h2 {
  font-family: var(--font-headings, 'Outfit', sans-serif);
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.fs-cta-box p {
  font-size: 1rem;
  line-height: 1.6;
  opacity: 0.85;
  max-width: 580px;
  margin: 0 auto 36px auto;
}

.fs-cta-btn {
  background: #ffffff;
  color: var(--clr-primary, #1a2e44);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  text-transform: uppercase;
}

.fs-cta-btn:hover {
  background: var(--clr-accent, #B5246A);
  color: #ffffff;
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 10px 25px rgba(181, 36, 106, 0.25);
}

/* ------------- RESPONSIVE LAYOUT ADAPTATIONS ------------- */
@media (max-width: 1024px) {
  .fs-frontend-layout,
  .fs-backend-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .fs-db-matrix {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .fs-hero {
    padding-top: 120px;
    padding-bottom: 60px;
  }
  .fs-hero-title {
    font-size: 2.25rem;
  }
  .fs-hero-desc {
    font-size: 1rem;
  }
  .fs-section {
    padding: 64px 20px;
  }
  .fs-sec-title {
    font-size: 1.65rem;
  }
  .fs-db-matrix {
    grid-template-columns: 1fr;
  }
  .fs-backend-features {
    grid-template-columns: 1fr;
  }
  .fs-cta-box {
    padding: 48px 24px;
    border-radius: var(--radius-lg, 20px);
  }
  .fs-hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  .fs-hero-actions .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
}