/* ═══════════════════════════════════════════════════════════
   PAOLA BRAMLETT — PORTFOLIO
   Design System & Styles
   ═══════════════════════════════════════════════════════════ */

/* ── DESIGN TOKENS ──────────────────────────────────────── */
:root {
  /* Colors */
  --color-bg:           #FAFAFA;
  --color-bg-secondary: #F4F4F5;
  --color-surface:      #FFFFFF;
  --color-surface-alt:  #F9F9FB;

  --color-text-primary:   #09090B;
  --color-text-secondary: #71717A;
  --color-text-muted:     #A1A1AA;

  --color-accent:          #4F46E5;
  --color-accent-hover:    #4338CA;
  --color-accent-subtle:   rgba(79, 70, 229, 0.08);
  --color-accent-glow:     rgba(79, 70, 229, 0.15);

  --color-border:       #E4E4E7;
  --color-border-hover: #D4D4D8;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Font sizes — fluid scale */
  --text-xs:   0.75rem;    /* 12px */
  --text-sm:   0.875rem;   /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-md:   1.125rem;   /* 18px */
  --text-lg:   1.25rem;    /* 20px */
  --text-xl:   1.5rem;     /* 24px */
  --text-2xl:  2rem;       /* 32px */
  --text-3xl:  2.5rem;     /* 40px */
  --text-4xl:  3.25rem;    /* 52px */
  --text-5xl:  4.5rem;     /* 72px */
  --text-hero: clamp(3rem, 7vw, 5.5rem);

  /* Spacing */
  --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;
  --space-40: 10rem;

  /* Layout */
  --container-max: 1200px;
  --container-pad: clamp(1.25rem, 5vw, 4rem);

  /* Radius */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 1px 4px rgba(0,0,0,.04);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.10), 0 2px 8px rgba(0,0,0,.05);
  --shadow-glow: 0 0 40px rgba(79, 70, 229, 0.12);
  --shadow-card-hover: 0 12px 40px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.06);

  /* Transitions */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:   cubic-bezier(0.4, 0, 1, 1);
  --ease-io:   cubic-bezier(0.37, 0, 0.63, 1);
  --dur-fast:  150ms;
  --dur-base:  250ms;
  --dur-slow:  400ms;

  /* Nav height */
  --nav-height: 64px;
}

/* ── RESET & BASE ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
ul, ol { list-style: none; }

::selection {
  background: var(--color-accent);
  color: #fff;
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ── TYPOGRAPHY ─────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--color-text-primary);
}

p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ── CONTAINER ──────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ── BUTTONS ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
  border-radius: var(--radius-md);
  transition:
    background var(--dur-base) var(--ease-out),
    color var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
  padding: var(--space-3) var(--space-5);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }

/* Primary */
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 1px 3px rgba(79, 70, 229, 0.3), inset 0 1px 0 rgba(255,255,255,.1);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.4), inset 0 1px 0 rgba(255,255,255,.12);
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
  background: var(--color-bg-secondary);
}

/* Outline */
.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-subtle);
}

/* ── SECTION LABELS ─────────────────────────────────────── */
.section-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-6);
}

.label-line {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-border);
  flex-shrink: 0;
}

/* ── SECTION HEADINGS ───────────────────────────────────── */
.section-heading {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.08;
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
}

.section-header {
  max-width: 640px;
  margin-bottom: var(--space-16);
}

.section-header .section-heading { margin-bottom: var(--space-4); }

.section-body {
  color: var(--color-text-secondary);
  font-size: var(--text-md);
  line-height: 1.7;
  max-width: 560px;
}

/* ── SCROLL REVEAL ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.7s var(--ease-out),
    transform 0.7s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── NAVBAR ─────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition:
    background var(--dur-slow) var(--ease-out),
    border-color var(--dur-slow) var(--ease-out),
    box-shadow var(--dur-slow) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(250, 250, 250, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 16px rgba(0,0,0,.04);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  gap: var(--space-8);
}

.nav-logo {
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  transition: color var(--dur-base) var(--ease-out);
  flex-shrink: 0;
}
.nav-logo:hover { color: var(--color-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
  justify-content: center;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition:
    color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out);
}
.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
}

.nav-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--color-text-primary);
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
  transform-origin: center;
}

.nav-mobile-menu {
  display: none;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6) var(--container-pad);
  background: rgba(250, 250, 250, 0.98);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--color-border);
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
}
.nav-mobile-menu ul { display: flex; flex-direction: column; gap: var(--space-1); }
.nav-mobile-menu .nav-link { font-size: var(--text-base); padding: var(--space-3); }
.nav-mobile-menu .btn { align-self: flex-start; }

/* ── HERO ───────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  padding-bottom: var(--space-32);
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(79, 70, 229, 0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
  padding-top: var(--space-16);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-10);
  box-shadow: var(--shadow-sm);
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2); }
  50%       { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.05); }
}

.hero-heading {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}

.hero-name {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--color-text-primary);
}

.hero-title {
  font-size: var(--text-hero);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--color-text-primary);
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-accent) 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subheadline {
  font-size: clamp(var(--text-md), 2.2vw, var(--text-xl));
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-5);
}

.hero-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: var(--space-10);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

.hero-caption {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
  max-width: 480px;
  line-height: 1.6;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-10);
  left: var(--container-pad);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.hero-scroll-indicator span {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-border), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 1; }
}

.br-desktop { display: block; }

/* ── VALUE PROPOSITION ──────────────────────────────────── */
.value-prop {
  padding-block: var(--space-32);
  border-top: 1px solid var(--color-border);
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-12), 6vw, var(--space-32));
  align-items: start;
}

.value-text .section-heading {
  font-size: clamp(var(--text-2xl), 3.5vw, var(--text-4xl));
  position: sticky;
  top: calc(var(--nav-height) + var(--space-8));
}

.value-body p {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-5);
}

.capabilities-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.capability-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  transition:
    border-color var(--dur-base) var(--ease-out),
    color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out);
}

.capability-tag:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
}

.accent-tag {
  background: var(--color-accent-subtle);
  border-color: rgba(79, 70, 229, 0.2);
  color: var(--color-accent);
}

/* ── SELECTED WORK ──────────────────────────────────────── */
.work {
  padding-block: var(--space-32);
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.work-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    box-shadow var(--dur-slow) var(--ease-out),
    border-color var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  display: flex;
  flex-direction: column;
}

.work-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-border-hover);
  transform: translateY(-3px);
}

.work-card-visual {
  position: relative;
  height: 220px;
  overflow: hidden;
}

/* Real project screenshot — swap in when image is ready */
.work-card-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--dur-slow) var(--ease-out);
}

.work-card:hover .work-card-img {
  transform: scale(1.03);
}

/* ── IMAGE PLACEHOLDERS ──────────────────────────────────── */

/* Base placeholder — fills its positioned parent */
.img-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-secondary);
  border-bottom: 1px dashed var(--color-border-hover);
  transition: background var(--dur-base) var(--ease-out);
}

/* Avatar variant — self-contained circle */
.img-placeholder--avatar {
  position: relative;
  inset: auto;
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  border: 1.5px dashed var(--color-border-hover);
  background: var(--color-bg-secondary);
  flex-shrink: 0;
}

.placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
  padding: var(--space-4);
  pointer-events: none;
  user-select: none;
}

.placeholder-icon {
  color: var(--color-text-muted);
  opacity: 0.45;
}

.placeholder-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  margin: 0;
  line-height: 1.4;
}

.placeholder-hint {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-text-muted);
  opacity: 0.55;
  margin: 0;
  line-height: 1.4;
}

/* About avatar image — once real photo is integrated */
.about-avatar {
  margin-bottom: var(--space-8);
}

.about-avatar-img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  object-fit: cover;
  display: block;
}

.work-card-body {
  padding: var(--space-6);
  flex: 1;
}

.work-card-type {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--space-3);
}

.work-card-title {
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.work-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.work-card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
}

.work-card-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition:
    color var(--dur-base) var(--ease-out),
    gap var(--dur-base) var(--ease-out);
}

.work-card-cta:hover {
  color: var(--color-accent);
}

.work-card-cta:hover { gap: var(--space-3); }

/* ── LABS ───────────────────────────────────────────────── */
.labs {
  padding-block: var(--space-32);
  border-top: 1px solid var(--color-border);
}

.labs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.lab-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition:
    box-shadow var(--dur-slow) var(--ease-out),
    border-color var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
}

.lab-card:hover {
  box-shadow: var(--shadow-md), 0 0 0 1px var(--color-accent-glow);
  border-color: rgba(79, 70, 229, 0.2);
  transform: translateY(-2px);
}

.lab-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.lab-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border: 1px solid rgba(79, 70, 229, 0.15);
  border-radius: var(--radius-full);
  padding: 2px var(--space-2);
}

.lab-card-icon {
  color: var(--color-text-muted);
  transition: color var(--dur-base) var(--ease-out);
}

.lab-card:hover .lab-card-icon { color: var(--color-accent); }

.lab-card-title {
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

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

.labs-cta { text-align: center; }

/* ── DESIGN PHILOSOPHY ──────────────────────────────────── */
.philosophy {
  padding-block: var(--space-40);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-text-primary);
  position: relative;
  overflow: hidden;
}

.philosophy::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(79, 70, 229, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.philosophy-inner {
  max-width: 760px;
}

.philosophy-inner .section-label {
  color: rgba(255,255,255,0.35);
}
.philosophy-inner .label-line {
  background: rgba(255,255,255,0.15);
}

.philosophy-quote {
  font-size: clamp(var(--text-2xl), 4.5vw, var(--text-5xl));
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: #FFFFFF;
  margin-bottom: var(--space-10);
  border: none;
  padding: 0;
}

.philosophy-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.philosophy-body p {
  font-size: var(--text-md);
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
}

/* ── ABOUT ──────────────────────────────────────────────── */
.about {
  padding-block: var(--space-32);
  border-top: 1px solid var(--color-border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-12), 6vw, var(--space-32));
  align-items: start;
}

.about-left .section-heading {
  font-size: clamp(var(--text-xl), 3vw, var(--text-3xl));
}

.about-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.about-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.stat-value {
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
}

.about-right p {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-5);
}
.about-right p:last-child { margin-bottom: 0; }

/* ── SERVICES ───────────────────────────────────────────── */
.services {
  padding-block: var(--space-32);
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.services-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
}

.service-item {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: var(--space-6);
  align-items: center;
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  transition:
    background var(--dur-base) var(--ease-out),
    padding-left var(--dur-base) var(--ease-out);
  border-radius: 0;
  cursor: default;
}

.service-item:hover {
  background: var(--color-surface);
  padding-left: var(--space-4);
  margin-inline: calc(-1 * var(--space-4));
  padding-inline: var(--space-4);
  border-radius: var(--radius-md);
  border-color: transparent;
}

.service-item:hover .service-arrow { opacity: 1; transform: translateX(0); }

.service-number {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.service-title {
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  line-height: 1.3;
}

.service-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.service-arrow {
  color: var(--color-accent);
  opacity: 0;
  transform: translateX(-4px);
  transition:
    opacity var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out);
  flex-shrink: 0;
}

/* ── CTA SECTION ────────────────────────────────────────── */
.cta-section {
  padding-block: var(--space-40);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.cta-bg-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(79, 70, 229, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  max-width: 640px;
  margin-inline: auto;
  position: relative;
}

.cta-heading {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-5xl));
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
}

.cta-body {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

.cta-btn { margin-bottom: var(--space-6); }

.cta-caption {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
}

/* ── CONTACT ────────────────────────────────────────────── */
.contact {
  padding-block: var(--space-32);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-alt);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-12), 6vw, var(--space-32));
  align-items: start;
}

.contact-body {
  color: var(--color-text-secondary);
  font-size: var(--text-md);
  line-height: 1.65;
  margin-bottom: var(--space-8);
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition:
    color var(--dur-base) var(--ease-out),
    gap var(--dur-base) var(--ease-out);
}

.contact-link:hover {
  color: var(--color-accent);
  gap: var(--space-4);
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: -0.01em;
}

.form-input {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
  width: 100%;
  line-height: 1.5;
  -webkit-appearance: none;
  appearance: none;
}

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

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.form-submit { align-self: flex-start; }

.form-success {
  font-size: var(--text-sm);
  color: #16a34a;
  font-weight: 500;
  min-height: 1.5em;
}

/* ── FOOTER ─────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-12);
  padding-bottom: var(--space-8);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--space-12);
  align-items: start;
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-6);
}

.footer-name {
  display: block;
  font-weight: 600;
  font-size: var(--text-base);
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.footer-role {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  letter-spacing: 0.02em;
}

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

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--dur-base) var(--ease-out);
}
.footer-link:hover { color: var(--color-text-primary); }

.footer-social {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition:
    color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out);
}
.footer-social-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
}

.footer-bottom { display: flex; justify-content: space-between; align-items: center; }

.footer-copy {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .labs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .work-grid {
    grid-template-columns: 1fr;
    max-width: 540px;
  }
}

@media (max-width: 768px) {
  :root {
    --space-32: 5rem;
    --space-40: 6rem;
  }

  .section-body { font-size: var(--text-base); }
  .hero-subheadline { font-size: var(--text-lg); }
  .about-right p, .value-body p { font-size: var(--text-base); }

  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }

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

  .nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }

  .hero-title { font-size: clamp(2.5rem, 10vw, 4rem); }
  .br-desktop { display: none; }

  .value-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .value-text .section-heading { position: static; }

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

  .philosophy-body { grid-template-columns: 1fr; }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-social { flex-direction: row; }

  .service-item {
    grid-template-columns: 40px 1fr auto;
    gap: var(--space-4);
  }
}

@media (max-width: 540px) {
  .labs-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions .btn { width: 100%; justify-content: center; }

  .about-details { grid-template-columns: repeat(3, 1fr); }

  .service-item { grid-template-columns: 1fr; }
  .service-number { display: none; }
  .service-arrow { display: none; }
}

/* ── REDUCED MOTION ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .badge-dot, .scroll-line { animation: none; }
  * { transition-duration: 0.01ms !important; }
}