/* ==========================================================================
   Marco Castro — marcocastro.pro
   Design System: Modern Tech Executive / Linear / Vercel Aesthetics
   ========================================================================== */

:root {
  /* Color Palette — Deep Sophisticated Dark Theme */
  --bg-base: #080c12;
  --bg-subtle: #0b1118;
  --bg-surface: #0f1622;
  --bg-surface-elevated: #151f2e;
  --bg-surface-hover: #1b273b;
  --bg-card: rgba(15, 22, 34, 0.75);
  --bg-card-hover: rgba(21, 31, 46, 0.9);
  
  /* Text System */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dim: #475569;
  
  /* Tech Accents */
  --accent-cyan: #38bdf8;
  --accent-cyan-subtle: rgba(56, 189, 248, 0.12);
  --accent-cyan-glow: rgba(56, 189, 248, 0.25);
  
  --accent-emerald: #10b981;
  --accent-emerald-subtle: rgba(16, 185, 129, 0.12);
  --accent-emerald-glow: rgba(16, 185, 129, 0.25);
  
  --accent-amber: #f59e0b;
  --accent-amber-subtle: rgba(245, 158, 11, 0.12);
  --accent-amber-glow: rgba(245, 158, 11, 0.25);
  
  --accent-blue: #0284c7;
  --accent-indigo: #6366f1;

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-bright: rgba(255, 255, 255, 0.24);
  --border-accent: rgba(56, 189, 248, 0.35);

  /* Typography */
  --body-font: "Karla", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --display-font: "Bricolage Grotesque", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono-font: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Layout & Geometry */
  --shell: min(1200px, calc(100% - 3rem));
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  
  /* Shadows & Glows */
  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-subtle);
  --shadow-card-hover: 0 12px 30px -4px rgba(0, 0, 0, 0.7), 0 0 0 1px var(--border-medium);
  --glow-cyan: 0 0 35px -5px rgba(56, 189, 248, 0.18);
  --glow-emerald: 0 0 35px -5px rgba(16, 185, 129, 0.18);
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  background-color: var(--bg-base);
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(56, 189, 248, 0.07), transparent 70%),
    radial-gradient(circle at 100% 40%, rgba(99, 102, 241, 0.04), transparent 50%),
    radial-gradient(circle at 0% 80%, rgba(16, 185, 129, 0.03), transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--body-font);
  font-size: 1.05rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

::selection {
  background: rgba(56, 189, 248, 0.28);
  color: #fff;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--accent-cyan);
  color: #040910;
  font-weight: 700;
  font-size: 0.88rem;
  transform: translateY(-200%);
  transition: transform 200ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(8, 12, 18, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-shell {
  display: flex;
  min-height: 4.8rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--display-font);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-mark {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(56, 189, 248, 0.4);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15) 0%, rgba(16, 185, 129, 0.15) 100%);
  color: var(--accent-cyan);
  font-family: var(--mono-font);
  font-size: 0.76rem;
  font-weight: 800;
  box-shadow: 0 0 12px -2px rgba(56, 189, 248, 0.25);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2rem);
  font-size: 0.9rem;
  font-weight: 600;
}

.site-nav a {
  position: relative;
  padding-block: 0.35rem;
  color: var(--text-secondary);
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text-primary);
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease-out;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle {
  display: none;
  width: 2.6rem;
  height: 2.6rem;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.32rem;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  cursor: pointer;
}

.nav-toggle-line {
  display: block;
  width: 1.15rem;
  height: 2px;
  background: var(--text-primary);
  transition: transform 200ms ease;
}

/* ==========================================================================
   Typography & Shared Utilities
   ========================================================================== */

.eyebrow,
.section-label,
.badge,
.tag,
.diagram-header,
.proof-label,
.credential-label,
.project-tag,
.career-date,
.diagram-index,
.archive-years,
.tech-line,
.role-line span,
.meta-chip {
  font-family: var(--mono-font);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.2);
  background: rgba(56, 189, 248, 0.06);
  color: var(--accent-cyan);
  margin-bottom: 1.8rem;
}

/* Hero Full-Width Evolution Bar (Staircase progression in 1 straight line) */
.hero-evolution-bar {
  grid-column: 1 / -1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background: linear-gradient(90deg, rgba(15, 22, 34, 0.9) 0%, rgba(21, 31, 46, 0.75) 100%);
  backdrop-filter: blur(16px);
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.45);
  margin-bottom: clamp(1.2rem, 3vw, 2rem);
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}

.evo-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.28rem 0.75rem;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  flex-shrink: 0;
}

.evo-tag {
  font-family: var(--mono-font);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-cyan);
}

.evo-steps-track {
  display: inline-flex;
  align-items: center;
  gap: clamp(0.7rem, 1.8vw, 1.4rem);
  flex-wrap: nowrap;
  font-family: var(--mono-font);
}

.evo-step {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  letter-spacing: 0.04em;
  transition: all 180ms ease;
}

/* Escadinha: fonte aumentando progressivamente */
.evo-step--1 {
  font-size: 0.76rem;
  color: var(--text-dim);
  font-weight: 500;
}

.evo-step--2 {
  font-size: 0.86rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.evo-step--3 {
  font-size: 0.98rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

.evo-step--4 {
  font-size: 1.14rem;
  font-weight: 800;
  color: #fff;
  padding: 0.22rem 0.75rem;
  border-radius: var(--radius-xs);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2) 0%, rgba(16, 185, 129, 0.28) 100%);
  border: 1px solid rgba(16, 185, 129, 0.45);
  box-shadow: 0 0 16px -2px rgba(16, 185, 129, 0.35);
}

.evo-arrow {
  color: var(--text-dim);
  font-size: 0.85rem;
  user-select: none;
}

.eyebrow-dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.2rem;
  color: var(--accent-cyan);
}

.section-label::before {
  content: "//";
  color: var(--text-dim);
}

.hero h1,
.section h2,
.contact-section h2 {
  margin: 0;
  font-family: var(--display-font);
  font-weight: 700;
  letter-spacing: -0.055em;
  color: var(--text-primary);
}

.section h2,
.contact-section h2 {
  max-width: 14ch;
  font-size: clamp(2.6rem, 5.5vw, 5.2rem);
  line-height: 0.96;
}

.section h2 span,
.contact-section h2 span {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #38ef7d 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead-copy {
  color: #e2e8f0;
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  letter-spacing: -0.025em;
  line-height: 1.35;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 3rem;
  padding: 0.65rem 1.3rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: all 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #0284c7 100%);
  color: #040910;
  box-shadow: 0 0 20px -3px rgba(56, 189, 248, 0.4);
}

.button-primary:hover,
.button-primary:focus-visible {
  box-shadow: 0 0 28px 0px rgba(56, 189, 248, 0.6);
  filter: brightness(1.08);
}

.button-quiet {
  border-color: var(--border-medium);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}

.button-quiet:hover,
.button-quiet:focus-visible {
  border-color: var(--border-bright);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.button-dark {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
}

.button-dark:hover,
.button-dark:focus-visible {
  background: var(--bg-surface-hover);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 18px -3px rgba(56, 189, 248, 0.25);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  position: relative;
  display: grid;
  min-height: min(840px, calc(100vh - 4.8rem));
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  align-items: center;
  gap: clamp(2.5rem, 6vw, 6rem);
  padding-top: clamp(3.5rem, 7vw, 6.5rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(4.4rem, 9.5vw, 8.8rem);
  line-height: 0.84;
}

.hero h1 span {
  display: block;
  margin-left: clamp(1.5rem, 5vw, 4.8rem);
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lede {
  max-width: 38rem;
  margin: clamp(2rem, 4vw, 3.2rem) 0 0;
  color: var(--text-secondary);
  font-size: clamp(1.2rem, 1.8vw, 1.55rem);
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  margin-top: 2.4rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.2rem;
  margin: 2.8rem 0 0;
  padding: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  list-style: none;
}

.hero-meta li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-meta li:not(:last-child)::after {
  margin-left: 1.2rem;
  color: var(--accent-cyan);
  content: "·";
  font-weight: 800;
}

/* ==========================================================================
   Hero Visual / SVG Diagram Card
   ========================================================================== */

.hero-visual {
  position: relative;
  z-index: 1;
}

.diagram-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-medium);
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.85) 0%, rgba(10, 15, 24, 0.95) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.6), 0 0 30px -10px rgba(56, 189, 248, 0.15);
}

.diagram-header,
.diagram-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.4rem;
}

.diagram-header {
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.diagram-code {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent-cyan);
}

.diagram-code::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
}

.system-diagram {
  display: block;
  width: 100%;
  height: auto;
  color: var(--text-muted);
}

/* SVG Schematic Styles */
.diagram-grid-pattern line {
  stroke: rgba(255, 255, 255, 0.05);
}

.diagram-path {
  fill: none;
  stroke-width: 2;
}

.diagram-path--cyan {
  stroke: var(--accent-cyan);
  filter: drop-shadow(0 0 4px rgba(56, 189, 248, 0.5));
}

.diagram-path--emerald {
  stroke: var(--accent-emerald);
  filter: drop-shadow(0 0 4px rgba(16, 185, 129, 0.5));
}

.diagram-path--amber {
  stroke: var(--accent-amber);
  filter: drop-shadow(0 0 4px rgba(245, 158, 11, 0.5));
}

.diagram-path--orbit {
  stroke: rgba(255, 255, 255, 0.14);
  stroke-dasharray: 4 6;
}

.diagram-node {
  stroke-width: 2;
  transition: all 200ms ease;
}

.diagram-labels text {
  font-family: var(--mono-font);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
}

.diagram-center {
  fill: var(--text-primary);
  font-family: var(--display-font);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.diagram-footer {
  align-items: center;
  gap: 1.2rem;
  border-top: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.2);
}

.diagram-index {
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.04);
  color: var(--accent-cyan);
}

.diagram-footer p {
  margin: 0;
  color: var(--text-secondary);
  font-family: var(--body-font);
  font-size: 0.92rem;
  line-height: 1.35;
}

/* ==========================================================================
   Proof Band (Telemetry Strip)
   ========================================================================== */

.proof-band {
  position: relative;
  border-block: 1px solid var(--border-subtle);
  background: linear-gradient(90deg, rgba(15, 22, 34, 0.9) 0%, rgba(21, 31, 46, 0.8) 50%, rgba(15, 22, 34, 0.9) 100%);
  backdrop-filter: blur(12px);
}

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

.proof-item {
  min-height: 9.5rem;
  padding: 2.2rem 1.5rem 1.8rem;
  border-left: 1px solid var(--border-subtle);
}

.proof-item:first-child {
  border-left: 0;
}

.proof-value {
  display: block;
  font-family: var(--display-font);
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 0.9;
  color: var(--text-primary);
}

.proof-suffix {
  color: var(--accent-cyan);
}

.proof-label {
  display: block;
  max-width: 18ch;
  margin-top: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Section Layout Shared
   ========================================================================== */

.section {
  padding-top: clamp(5.5rem, 10vw, 9.5rem);
  padding-bottom: clamp(5.5rem, 10vw, 9.5rem);
}

.section-heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 3rem;
}

.section-heading-row h2 {
  max-width: 14ch;
}

.section-aside {
  max-width: 34ch;
  margin: 0 0 0.35rem;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.5;
}

/* ==========================================================================
   Section 01: Visão (A Tríade do Product Builder)
   ========================================================================== */

.about-section {
  display: block;
}

.about-header {
  margin-bottom: clamp(2.5rem, 5vw, 3.8rem);
}

.about-header .section-heading-row {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(0, 1.4fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.about-copy {
  max-width: 58rem;
}

.about-copy p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 1.08rem;
  line-height: 1.7;
}

.about-copy p + p {
  margin-top: 1.2rem;
}

.about-copy strong {
  color: var(--text-primary);
}

/* Triad Cards / Full Width Bento Row */
.triad-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  margin-top: clamp(2rem, 4vw, 3rem);
}

.triad-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2.2rem 1.8rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-medium);
  background: linear-gradient(180deg, rgba(21, 31, 46, 0.75) 0%, rgba(15, 22, 34, 0.95) 100%);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: all 220ms ease;
  position: relative;
  overflow: hidden;
}

.triad-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--border-subtle);
}

.triad-card--discovery::before {
  background: linear-gradient(90deg, var(--accent-cyan), transparent);
}

.triad-card--builder::before {
  background: linear-gradient(90deg, var(--accent-emerald), transparent);
}

.triad-card--activation::before {
  background: linear-gradient(90deg, var(--accent-amber), transparent);
}

.triad-card:hover {
  border-color: rgba(56, 189, 248, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.6), 0 0 25px -5px rgba(56, 189, 248, 0.15);
}

.triad-number {
  font-family: var(--mono-font);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent-cyan);
  margin-bottom: 1.2rem;
}

.triad-card--builder .triad-number {
  color: var(--accent-emerald);
}

.triad-card--activation .triad-number {
  color: var(--accent-amber);
}

.triad-card h3 {
  margin: 0 0 0.85rem;
  font-family: var(--display-font);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.triad-card p {
  margin: 0 0 1.6rem;
  color: #cbd5e1;
  font-size: 1.02rem;
  line-height: 1.65;
}

.triad-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: auto;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.triad-tag {
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-medium);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-family: var(--mono-font);
  font-size: 0.72rem;
}

@media (max-width: 900px) {
  .about-header .section-heading-row {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }

  .triad-grid {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }
}

/* ==========================================================================
   Section 02: Cases & Portfólio (Categorização Corporativo NDA vs Lab Aberto)
   ========================================================================== */

.projects-section {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
}

/* Sub-group Containers */
.projects-subgroup {
  margin-top: clamp(3.5rem, 6vw, 5rem);
}

.subgroup-header {
  margin-bottom: 2rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--border-subtle);
}

.subgroup-header .badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-xs);
  font-size: 0.72rem;
  margin-bottom: 0.75rem;
}

.badge-nda {
  border: 1px solid rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.08);
  color: var(--accent-amber);
}

.badge-lab {
  border: 1px solid rgba(56, 189, 248, 0.35);
  background: rgba(56, 189, 248, 0.08);
  color: var(--accent-cyan);
}

.subgroup-header h3 {
  margin: 0 0 0.5rem;
  font-family: var(--display-font);
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.subgroup-header p {
  margin: 0;
  max-width: 58ch;
  color: var(--text-muted);
  font-size: 0.98rem;
}

/* Corporativo NDA Grid */
.nda-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
}

.nda-case-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2.2rem 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-medium);
  background: linear-gradient(180deg, rgba(21, 31, 46, 0.95) 0%, rgba(15, 22, 34, 0.95) 100%);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: all 240ms ease;
  position: relative;
  overflow: hidden;
}

.nda-case-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-emerald));
  opacity: 0.7;
}

.nda-case-card:hover {
  border-color: var(--border-bright);
  box-shadow: var(--shadow-card-hover), var(--glow-cyan);
  transform: translateY(-4px);
}

.case-top-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.4rem;
}

.case-kind {
  color: var(--accent-cyan);
}

.nda-status-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(245, 158, 11, 0.3);
  background: rgba(245, 158, 11, 0.08);
  color: var(--accent-amber);
  font-family: var(--mono-font);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nda-case-card h4 {
  margin: 0 0 1rem;
  font-family: var(--display-font);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  color: var(--text-primary);
}

.nda-case-card p.case-desc {
  margin: 0 0 1.6rem;
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.55;
}

.case-nda-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.25);
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.4;
  margin-top: auto;
  margin-bottom: 1.4rem;
}

.case-nda-notice strong {
  color: var(--text-secondary);
}

/* Open Lab Bento Grid */
.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.lab-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.6rem 1.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  transition: all 200ms ease;
}

.lab-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.lab-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.8rem;
}

.lab-card-header .project-number {
  font-family: var(--mono-font);
  font-size: 0.74rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.status-refactoring {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(56, 189, 248, 0.25);
  background: rgba(56, 189, 248, 0.06);
  color: var(--accent-cyan);
  font-family: var(--mono-font);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.lab-card h4 {
  margin: 0 0 0.65rem;
  font-family: var(--display-font);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.lab-card p {
  margin: 0 0 1.2rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.48;
}

.lab-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border-subtle);
}

.lab-card-footer .project-tag {
  color: var(--text-secondary);
}

/* ==========================================================================
   Section 03: Trajetória com Storytelling (Antes vs Depois)
   ========================================================================== */

.experience-section {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-base);
}

.storytelling-container {
  margin-top: clamp(3.5rem, 6vw, 5.5rem);
}

/* Phase Header */
.story-phase {
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}

.phase-heading {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.8rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-subtle);
}

.phase-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-family: var(--mono-font);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.phase-pill--after {
  border: 1px solid rgba(16, 185, 129, 0.4);
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-emerald);
  box-shadow: 0 0 12px -2px rgba(16, 185, 129, 0.3);
}

.phase-pill--before {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
}

.phase-title {
  margin: 0;
  font-family: var(--display-font);
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

/* Featured Era Card (O Depois) */
.era-featured-card {
  padding: 2.5rem 2.2rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(16, 185, 129, 0.3);
  background: linear-gradient(180deg, rgba(21, 31, 46, 0.95) 0%, rgba(13, 19, 29, 0.98) 100%);
  backdrop-filter: blur(16px);
  box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.6), var(--glow-emerald);
}

.career-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.career-heading h3 {
  margin: 0;
  font-family: var(--display-font);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  color: var(--text-primary);
}

.career-heading h3 span {
  color: var(--text-muted);
  font-family: var(--body-font);
  font-size: 0.82em;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.career-heading p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.career-roles {
  margin-top: 1.4rem;
}

.role-line {
  display: flex;
  max-width: 48rem;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0;
  border-top: 1px solid var(--border-subtle);
}

.role-line strong {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-primary);
}

.role-line span {
  align-self: center;
  color: var(--text-muted);
}

.career-summary {
  max-width: 72ch;
  margin: 1.4rem 0 0;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
}

.career-note {
  max-width: 68ch;
  margin: 1.2rem 0 0;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(16, 185, 129, 0.2);
  background: rgba(16, 185, 129, 0.05);
  color: #d1fae5;
  font-size: 0.95rem;
  line-height: 1.5;
}

.career-note span {
  display: inline-block;
  margin-right: 0.6rem;
  color: var(--accent-emerald);
  font-family: var(--mono-font);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tech-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.8rem;
  margin-top: 1.6rem;
  color: var(--accent-cyan);
}

.tech-line span:not(:last-child)::after {
  margin-left: 0.8rem;
  color: var(--text-dim);
  content: "/";
}

/* Timeline Cards (O Antes) */
.timeline-grid {
  display: grid;
  gap: 1.2rem;
}

.career-entry {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: clamp(1.5rem, 3.5vw, 3.5rem);
  padding: 1.8rem 1.8rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  transition: all 180ms ease;
}

.career-entry:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
}

.career-date {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  line-height: 1.4;
}

.career-entry--life {
  border: 1px dashed rgba(245, 158, 11, 0.3);
  background: rgba(245, 158, 11, 0.03);
}

.career-entry--life .career-heading h3 {
  color: var(--accent-amber);
}

/* Expandable Archive */
.career-archive {
  margin-top: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.career-archive summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.4rem 1.8rem;
  color: var(--text-primary);
  cursor: pointer;
  font-family: var(--display-font);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  list-style: none;
  transition: background 180ms ease;
}

.career-archive summary:hover {
  background: rgba(255, 255, 255, 0.03);
}

.career-archive summary::-webkit-details-marker {
  display: none;
}

.career-archive summary b {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border-medium);
  color: var(--accent-cyan);
  font-family: var(--mono-font);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1;
  transition: transform 200ms ease;
}

.career-archive[open] summary b {
  transform: rotate(45deg);
}

.archive-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 2rem;
  padding: 1.2rem 1.8rem 2rem;
  border-top: 1px solid var(--border-subtle);
}

.archive-entry {
  padding: 1.2rem 0;
  border-top: 1px solid var(--border-subtle);
}

.archive-entry:nth-child(-n + 2) {
  border-top: 0;
}

.archive-entry h4 {
  margin: 0.5rem 0 0;
  font-family: var(--display-font);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.archive-role {
  margin: 0.35rem 0 0;
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
}

.archive-entry > p:last-of-type {
  margin: 0.5rem 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ==========================================================================
   Section 04: Repertório Técnico & Credenciais
   ========================================================================== */

.stack-section {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
}

.stack-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(3rem, 6vw, 6rem);
  margin-top: clamp(3rem, 6vw, 5rem);
}

.stack-groups {
  display: grid;
  gap: 2rem;
}

.stack-group {
  padding: 1.8rem 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.stack-group > p,
.credential-label {
  margin: 0 0 1rem;
  color: var(--accent-cyan);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-cloud span {
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  transition: all 180ms ease;
}

.tag-cloud span:hover {
  border-color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.08);
  color: var(--text-primary);
}

/* Credentials Side Block */
.credentials {
  display: grid;
  gap: 1.5rem;
}

.credential-block {
  padding: 1.8rem 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.credential-block ul {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.credential-block li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--text-secondary);
  font-size: 0.94rem;
}

.credential-block li::before {
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  content: "↳";
  font-weight: 800;
}

.credential-block h4 {
  margin: 0;
  font-family: var(--display-font);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.credential-block > p:last-child {
  margin: 0.5rem 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ==========================================================================
   Section 05: Coder Master AI (Substack Editorial Block)
   ========================================================================== */

.writing-section {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-base);
}

.writing-card {
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding: clamp(2.5rem, 5vw, 4rem);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-medium);
  background: linear-gradient(135deg, rgba(21, 31, 46, 0.9) 0%, rgba(11, 16, 26, 0.95) 100%);
  backdrop-filter: blur(20px);
  box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.6), 0 0 40px -15px rgba(56, 189, 248, 0.15);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
}

.writing-copy h3 {
  margin: 0 0 1.2rem;
  font-family: var(--display-font);
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.05;
  color: var(--text-primary);
}

.writing-copy h3 span {
  color: var(--accent-cyan);
}

.writing-copy p {
  margin: 0 0 1.2rem;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
}

.writing-copy .lead-copy {
  color: #f1f5f9;
}

.writing-topics {
  display: grid;
  gap: 1rem;
}

.topic-item {
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.03);
  transition: all 180ms ease;
}

.topic-item:hover {
  border-color: var(--border-medium);
  background: rgba(255, 255, 255, 0.06);
}

.topic-item span {
  color: var(--accent-cyan);
  font-family: var(--mono-font);
  font-size: 0.72rem;
  font-weight: 800;
  display: block;
  margin-bottom: 0.35rem;
}

.topic-item strong {
  display: block;
  font-family: var(--display-font);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.topic-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

/* ==========================================================================
   Section 06: Contato
   ========================================================================== */

.contact-section {
  border-top: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, var(--bg-subtle) 0%, #05080d 100%);
}

.contact-inner {
  padding-top: clamp(5.5rem, 10vw, 9rem);
  padding-bottom: clamp(5.5rem, 10vw, 9rem);
}

.contact-copy {
  max-width: 52ch;
  margin: 2rem 0 0;
  color: var(--text-secondary);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  line-height: 1.5;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.2rem;
  margin-top: 2.8rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-family: var(--mono-font);
  font-size: 0.82rem;
  font-weight: 700;
  transition: all 180ms ease;
}

.contact-link:hover,
.contact-link:focus-visible {
  border-color: var(--border-bright);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  transform: translateY(-2px);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: #04060a;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 1.6rem;
  padding-bottom: 1.6rem;
  font-size: 0.8rem;
  font-weight: 600;
}

.footer-inner span:first-child {
  color: var(--text-secondary);
}

/* ==========================================================================
   Animations & Reveals
   ========================================================================== */

[data-reveal] {
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1), transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(1.4rem);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

@media (max-width: 980px) {
  :root {
    --shell: min(100% - 2.5rem, 780px);
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 1.25rem;
    left: 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.8rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-medium);
    background: rgba(15, 22, 34, 0.96);
    backdrop-filter: blur(20px);
    box-shadow: 0 16px 36px -4px rgba(0, 0, 0, 0.7);
  }

  .nav-toggle {
    display: flex;
  }

  .js .site-nav {
    display: none;
  }

  .js .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.9rem 0.8rem;
  }

  .site-nav a::after {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .hero-visual {
    width: min(100%, 560px);
    justify-self: center;
  }

  .about-section,
  .stack-layout,
  .writing-card {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .nda-cases-grid {
    grid-template-columns: 1fr;
  }

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

  .triad-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  :root {
    --shell: calc(100% - 2rem);
  }

  .header-shell {
    min-height: 4.2rem;
  }

  .hero {
    min-height: auto;
    padding-top: 3.5rem;
    padding-bottom: 4rem;
  }

  .hero h1 {
    font-size: clamp(3.8rem, 18vw, 6.2rem);
  }

  .hero h1 span {
    margin-left: 1.2rem;
  }

  .hero-lede {
    font-size: 1.18rem;
  }

  .hero-meta {
    display: grid;
    gap: 0.4rem;
  }

  .hero-meta li:not(:last-child)::after {
    display: none;
  }

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

  .proof-item,
  .proof-item:first-child {
    min-height: 7.5rem;
    padding: 1.4rem 1rem;
    border-top: 1px solid var(--border-subtle);
    border-left: 1px solid var(--border-subtle);
  }

  .proof-item:nth-child(odd) {
    border-left: 0;
  }

  .proof-item:nth-child(-n + 2) {
    border-top: 0;
  }

  .proof-value {
    font-size: 2.5rem;
  }

  .section-heading-row {
    display: block;
  }

  .section-aside {
    margin-top: 1.2rem;
  }

  .section h2,
  .contact-section h2 {
    font-size: clamp(2.4rem, 12vw, 3.8rem);
  }

  .lab-grid {
    grid-template-columns: 1fr;
  }

  .career-entry {
    grid-template-columns: 1fr;
    gap: 0.8rem;
    padding: 1.5rem 1.2rem;
  }

  .career-heading {
    display: block;
  }

  .career-heading p {
    margin-top: 0.4rem;
  }

  .role-line {
    display: block;
  }

  .role-line span {
    display: block;
    margin-top: 0.2rem;
  }

  .archive-grid {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 1rem 1.2rem 1.5rem;
  }

  .career-archive summary {
    padding: 1.2rem 1.2rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media print {
  body {
    background: #fff;
    color: #000;
  }

  .site-header,
  .hero-actions,
  .contact-actions,
  .skip-link,
  .site-footer {
    display: none !important;
  }

  .hero,
  .section,
  .contact-inner {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
  }

  .hero-visual,
  .proof-band,
  .nda-case-card,
  .experience-section,
  .contact-section {
    break-inside: avoid;
  }

  .career-archive:not([open]) > :not(summary) {
    display: block;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   AI Query Section & Prompt Interactive Card
   ========================================================================== */

.ai-query-section {
  padding-top: clamp(4rem, 7vw, 6rem);
  padding-bottom: clamp(4rem, 7vw, 6rem);
  border-top: 1px solid var(--border-subtle);
  background: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.05) 0%, transparent 70%);
}

.ai-query-card {
  margin-top: 2rem;
  padding: clamp(1.8rem, 3vw, 2.5rem);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(56, 189, 248, 0.25);
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.95) 0%, rgba(11, 17, 26, 0.98) 100%);
  box-shadow: 0 16px 36px -12px rgba(0, 0, 0, 0.6), 0 0 40px -10px rgba(56, 189, 248, 0.12);
  position: relative;
  overflow: hidden;
}

.ai-query-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #38bdf8 0%, #10b981 50%, #f59e0b 100%);
}

.ai-query-card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--display-font);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
}

.ai-query-card h3 span {
  color: var(--accent-cyan);
}

.ai-query-desc {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
  max-width: 65ch;
  font-size: 0.98rem;
  line-height: 1.6;
}

.ai-prompt-box {
  background: #080c12;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.4rem;
  font-family: var(--mono-font);
  font-size: 0.88rem;
  line-height: 1.65;
  color: #cbd5e1;
  position: relative;
  overflow-x: auto;
  white-space: pre-wrap;
  margin-bottom: 1.5rem;
  user-select: all;
}

.ai-prompt-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
}

.copy-prompt-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-cyan);
  color: #04080e;
  border: none;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-sm);
  font-family: var(--display-font);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 180ms ease;
}

.copy-prompt-btn:hover {
  background: #7dd3fc;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
  transform: translateY(-1px);
}

.ai-direct-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
}

.ai-direct-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-family: var(--mono-font);
}

.ai-link-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-medium);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  transition: all 180ms ease;
}

.ai-link-chip:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Storytelling links inside cards */
.case-story-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.2rem;
  color: var(--accent-cyan);
  font-family: var(--display-font);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 180ms ease;
}

.case-story-link:hover {
  color: #7dd3fc;
  transform: translateX(3px);
}

.lab-story-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-secondary);
  font-size: 0.82rem;
  text-decoration: none;
  font-weight: 500;
  transition: color 180ms ease;
}

.lab-story-link:hover {
  color: var(--accent-cyan);
}

/* ==========================================================================
   Case Study & Storytelling Subpages
   ========================================================================== */

.case-study-page {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
}

.case-content {
  max-width: 860px;
  margin: 0 auto;
  padding-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(4rem, 8vw, 6rem);
}

.case-breadcrumbs {
  font-family: var(--mono-font);
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
}

.case-breadcrumbs a {
  color: var(--text-secondary);
  text-decoration: none;
}

.case-breadcrumbs a:hover {
  color: var(--accent-cyan);
}

.case-breadcrumbs span {
  color: var(--text-primary);
}

.case-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.case-title {
  margin: 0 0 1rem;
  font-family: var(--display-font);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.case-intro {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 2rem;
}

.case-metadata-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.2rem;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  margin-bottom: 2rem;
}

.case-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.case-meta-item .meta-label {
  font-family: var(--mono-font);
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.case-meta-item strong {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 600;
}

.case-body {
  margin-top: 2.5rem;
}

.case-section {
  margin-bottom: 3.2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.case-section:last-child {
  border-bottom: none;
}

.case-section-tag {
  font-family: var(--mono-font);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}

.case-section h2 {
  margin: 0 0 1rem;
  font-family: var(--display-font);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.case-section p {
  font-size: 1.05rem;
  line-height: 1.75;
  color: #cbd5e1;
  margin: 0 0 1.2rem;
}

.case-section blockquote {
  margin: 1.8rem 0;
  padding: 1.2rem 1.6rem;
  border-left: 3px solid var(--accent-cyan);
  background: rgba(56, 189, 248, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.6;
}

.case-bullet-list {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.case-bullet-list li {
  position: relative;
  padding-left: 1.6rem;
  font-size: 1.02rem;
  line-height: 1.65;
  color: #cbd5e1;
}

.case-bullet-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-weight: bold;
}

.case-bullet-list li strong {
  color: var(--text-primary);
}

.case-footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-medium);
}

/* ==========================================================================
   Career Evolution Ladder (A Escadinha Evolutiva)
   ========================================================================== */

.career-evolution-band {
  padding-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(3rem, 6vw, 4.5rem);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.95) 0%, rgba(15, 22, 34, 0.95) 100%);
}

.evolution-header {
  margin-bottom: 2.2rem;
}

.evolution-header h2 {
  font-family: var(--display-font);
  font-size: clamp(1.6rem, 2.8vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0;
  color: var(--text-primary);
}

.evolution-header h2 span {
  color: var(--accent-cyan);
}

.evolution-ladder-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
  position: relative;
  align-items: flex-end;
  margin-top: clamp(2rem, 4vw, 3rem);
}

.ladder-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.8rem 1.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background: var(--bg-surface);
  position: relative;
  transition: all 240ms ease;
  overflow: hidden;
}

.ladder-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
}

/* Degrau 01: Fundação (2006–2019) */
.ladder-card--step-1 {
  min-height: 240px;
  background: linear-gradient(180deg, rgba(15, 22, 34, 0.7) 0%, rgba(11, 17, 24, 0.98) 100%);
  border-color: rgba(255, 255, 255, 0.08);
}

.ladder-card--step-1::before {
  background: #64748b;
}

.ladder-card--step-1 .ladder-step-num {
  color: #94a3b8;
}

/* Degrau 02: Liderança (2020–2024) */
.ladder-card--step-2 {
  min-height: 265px;
  background: linear-gradient(180deg, rgba(49, 46, 129, 0.25) 0%, rgba(15, 22, 34, 0.98) 100%);
  border-color: rgba(99, 102, 241, 0.25);
}

.ladder-card--step-2::before {
  background: #6366f1;
}

.ladder-card--step-2 .ladder-step-num {
  color: #818cf8;
}

.ladder-card--step-2 h3 {
  color: #f1f5f9;
}

/* Degrau 03: Aceleração (2023–2025) */
.ladder-card--step-3 {
  min-height: 290px;
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.12) 0%, rgba(15, 22, 34, 0.98) 100%);
  border-color: rgba(56, 189, 248, 0.35);
}

.ladder-card--step-3::before {
  background: #38bdf8;
}

.ladder-card--step-3 .ladder-step-num {
  color: #38bdf8;
}

/* Degrau 04: Síntese Atual (2026–Presente) */
.ladder-card--step-4 {
  min-height: 315px;
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.14) 0%, rgba(15, 22, 34, 0.98) 100%);
  border-color: var(--accent-emerald);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.6), 0 0 25px -4px rgba(16, 185, 129, 0.3);
}

.ladder-card--step-4::before {
  background: linear-gradient(90deg, #38bdf8, #10b981);
  height: 3px;
}

.ladder-card--step-4 .ladder-step-num {
  color: #10b981;
  font-weight: 800;
}

.ladder-card--step-4 h3 {
  background: linear-gradient(135deg, #ffffff 40%, #a7f3d0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.ladder-card:hover {
  transform: translateY(-5px);
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 16px 32px -8px rgba(0, 0, 0, 0.7);
}

.ladder-step-num {
  display: inline-block;
  font-family: var(--mono-font);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}

.ladder-card h3 {
  margin: 0 0 0.35rem;
  font-family: var(--display-font);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.ladder-period {
  display: inline-block;
  font-family: var(--mono-font);
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.9rem;
}

.ladder-desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .evolution-ladder-grid {
    grid-template-columns: repeat(2, 1fr);
    align-items: stretch;
  }
  .ladder-card--step-1,
  .ladder-card--step-2,
  .ladder-card--step-3,
  .ladder-card--step-4 {
    min-height: auto;
  }
}

@media (max-width: 580px) {
  .evolution-ladder-grid {
    grid-template-columns: 1fr;
  }
}