/* ═══════════════════════════════════════════════════════════════════════════
   WILLAME SILVA — PREMIUM PORTFOLIO CSS
   Author: Willame Silva | willamesilva.dev
   Version: 1.0.0
   ═══════════════════════════════════════════════════════════════════════════ */

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

:root {
  /* Colors */
  --c-bg:           #050812;
  --c-bg-2:         #090d1f;
  --c-bg-3:         #0d1230;
  --c-surface:      rgba(255,255,255,.03);
  --c-surface-hover:rgba(255,255,255,.06);
  --c-border:       rgba(255,255,255,.07);
  --c-border-bright:rgba(59,130,246,.35);

  --c-blue:         #3b82f6;
  --c-blue-bright:  #60a5fa;
  --c-blue-dark:    #1d4ed8;
  --c-blue-glow:    rgba(59,130,246,.25);
  --c-neon:         #93c5fd;

  --c-text:         #e2e8f0;
  --c-text-muted:   #7c8ca8;
  --c-text-dim:     #4a5568;

  --c-green:        #10b981;
  --c-white:        #ffffff;

  /* Typography */
  --font-display:   'Syne', sans-serif;
  --font-body:      'DM Sans', sans-serif;

  /* Spacing */
  --space-xs:  .5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;
  --space-3xl: 9rem;

  /* Radius */
  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  20px;
  --r-xl:  28px;
  --r-full:9999px;

  /* Transitions */
  --t-fast:  150ms ease;
  --t-base:  250ms ease;
  --t-slow:  450ms cubic-bezier(.23,1,.32,1);
  --t-spring:600ms cubic-bezier(.34,1.56,.64,1);

  /* Header */
  --header-h: 72px;
}

/* ─── 1. BASE ─────────────────────────────────────────────────────────────── */
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--c-blue);
  color: #fff;
  padding: .5rem 1rem;
  z-index: 9999;
  border-radius: 0 0 var(--r-sm) 0;
  transition: top var(--t-base);
}
.skip-link:focus { top: 0; }

/* ─── 2. TYPOGRAPHY ──────────────────────────────────────────────────────── */
.section-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-blue-bright);
  background: rgba(59,130,246,.1);
  border: 1px solid rgba(59,130,246,.25);
  padding: .3rem .8rem;
  border-radius: var(--r-full);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--c-white);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--c-text-muted);
  max-width: 540px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.gradient-text {
  background: linear-gradient(135deg, var(--c-blue-bright) 0%, var(--c-blue) 50%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── 3. LAYOUT ──────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 2.5rem);
}

section { padding: var(--space-3xl) 0; position: relative; overflow: hidden; }

/* ─── 4. BUTTONS ─────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--r-full);
  transition: all var(--t-slow);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.1);
  opacity: 0;
  transition: opacity var(--t-base);
}
.btn:hover::before { opacity: 1; }

.btn--sm  { padding: .55rem 1.25rem; font-size: .875rem; }
.btn--md  { padding: .75rem 1.75rem; font-size: 1rem; }
.btn--lg  { padding: .9rem 2.25rem; font-size: 1.05rem; }
.btn--full { width: 100%; }

.btn--primary {
  background: linear-gradient(135deg, var(--c-blue) 0%, var(--c-blue-dark) 100%);
  color: #fff;
  box-shadow: 0 0 0 0 var(--c-blue-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--c-blue-glow), 0 0 0 1px rgba(59,130,246,.4);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--c-text);
  border: 1px solid var(--c-border);
}
.btn--ghost:hover {
  border-color: var(--c-blue);
  color: var(--c-blue-bright);
  transform: translateY(-2px);
}

.btn--whatsapp {
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: #fff;
  box-shadow: 0 0 0 0 rgba(37,211,102,.3);
}
.btn--whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37,211,102,.3);
}

/* ─── 5. HEADER ──────────────────────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: all var(--t-slow);
}

.header--scrolled {
  background: rgba(5,8,18,.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--c-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  gap: .1em;
  letter-spacing: -.01em;
}
.logo__bracket { color: var(--c-blue); }
.logo__name    { color: var(--c-white); }

/* Nav */
.nav__list {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.nav__link {
  font-size: .9rem;
  font-weight: 500;
  color: var(--c-text-muted);
  position: relative;
  transition: color var(--t-base);
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c-blue);
  border-radius: var(--r-full);
  transition: width var(--t-slow);
}
.nav__link:hover { color: var(--c-white); }
.nav__link:hover::after { width: 100%; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .4rem;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: all var(--t-slow);
  transform-origin: center;
}
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: rgba(5,8,18,.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--c-border);
  padding: 1.5rem;
  z-index: 999;
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: all var(--t-slow);
}
.mobile-menu.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}
.mobile-menu__list { display: flex; flex-direction: column; gap: .75rem; }
.mobile-menu__link {
  display: block;
  padding: .75rem 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--c-text-muted);
  border-bottom: 1px solid var(--c-border);
  transition: color var(--t-base);
}
.mobile-menu__link:hover { color: var(--c-white); }

/* ─── 6. HERO ────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  position: relative;
  overflow: hidden;
}

/* Aurora */
.aurora {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.aurora__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: auroraFloat 12s ease-in-out infinite;
  will-change: transform;
}
.aurora__orb--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,.25) 0%, transparent 70%);
  top: -20%;
  left: -10%;
  animation-delay: 0s;
}
.aurora__orb--2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99,102,241,.2) 0%, transparent 70%);
  top: 20%;
  right: -5%;
  animation-delay: -4s;
}
.aurora__orb--3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(14,165,233,.15) 0%, transparent 70%);
  bottom: -10%;
  left: 30%;
  animation-delay: -8s;
}

@keyframes auroraFloat {
  0%, 100% { transform: translate(0,0) scale(1); }
  33%       { transform: translate(30px,-20px) scale(1.05); }
  66%       { transform: translate(-20px,30px) scale(.97); }
}

/* Grid overlay */
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000 40%, transparent 100%);
}

/* Hero inner */
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding: var(--space-2xl) clamp(1.25rem,5vw,2.5rem);
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  font-weight: 600;
  color: var(--c-green);
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.25);
  border-radius: var(--r-full);
  padding: .35rem .9rem;
  margin-bottom: 1.5rem;
  letter-spacing: .03em;
}
.badge__dot {
  width: 8px;
  height: 8px;
  background: var(--c-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,.6); }
  50%       { box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--c-white);
  margin-bottom: 1.5rem;
  letter-spacing: -.02em;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--c-text-muted);
  max-width: 480px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

/* Stats */
.hero__stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.stat { text-align: left; }
.stat__number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--c-white);
  line-height: 1;
}
.stat__suffix {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--c-blue);
}
.stat__label {
  display: block;
  font-size: .8rem;
  color: var(--c-text-muted);
  margin-top: .25rem;
  letter-spacing: .02em;
}
.stat__divider {
  width: 1px;
  height: 40px;
  background: var(--c-border);
  flex-shrink: 0;
}

/* Hero Visual */
.hero__visual { display: flex; justify-content: center; align-items: center; }

.avatar-container {
  position: relative;
  width: 340px;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--c-border-bright);
  animation: ringRotate 20s linear infinite;
}
.avatar-ring--outer {
  inset: -20px;
  border-style: dashed;
  opacity: .4;
  animation-direction: reverse;
}
.avatar-ring--inner {
  inset: 20px;
  opacity: .6;
  animation-duration: 15s;
}
@keyframes ringRotate {
  to { transform: rotate(360deg); }
}

.avatar-core {
  width: 220px;
  height: 220px;
  background: radial-gradient(circle at 30% 30%, var(--c-bg-3), var(--c-bg));
  border-radius: 50%;
  border: 1px solid var(--c-border-bright);
  box-shadow:
    0 0 60px rgba(59,130,246,.15),
    inset 0 0 40px rgba(59,130,246,.05);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.avatar-core svg { width: 100%; height: 100%; }

/* Float badges */
.float-badge {
  position: absolute;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .4rem .9rem;
  border-radius: var(--r-full);
  background: rgba(5,8,18,.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--c-border-bright);
  color: var(--c-blue-bright);
  box-shadow: 0 4px 20px rgba(59,130,246,.15);
  animation: floatBadge 5s ease-in-out infinite;
}
.float-badge--1 { top: 12%; left: -10%; animation-delay: 0s; }
.float-badge--2 { bottom: 20%; left: -8%; animation-delay: -1.5s; }
.float-badge--3 { top: 15%; right: -5%; animation-delay: -3s; }
.float-badge--4 { bottom: 15%; right: -3%; animation-delay: -4.5s; }
@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  opacity: .5;
}
.scroll-indicator__mouse {
  width: 22px;
  height: 36px;
  border: 2px solid var(--c-border-bright);
  border-radius: var(--r-full);
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-indicator__dot {
  width: 4px;
  height: 8px;
  background: var(--c-blue);
  border-radius: var(--r-full);
  animation: scrollDot 2s ease-in-out infinite;
}
@keyframes scrollDot {
  0%, 100% { transform: translateY(0); opacity: 1; }
  80%       { transform: translateY(12px); opacity: 0; }
}

/* ─── 7. GLASS CARD BASE ─────────────────────────────────────────────────── */
.glass-card {
  background: rgba(255,255,255,.02);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  padding: var(--space-lg);
  transition: border-color var(--t-slow), box-shadow var(--t-slow);
  position: relative;
  overflow: hidden;
}
.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,.04) 0%, transparent 50%);
  pointer-events: none;
}
.glass-card:hover {
  border-color: var(--c-border-bright);
  box-shadow: 0 20px 60px rgba(59,130,246,.08);
}

/* ─── 8. SOBRE ───────────────────────────────────────────────────────────── */
.sobre { background: var(--c-bg-2); }

.sobre__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.sobre__paragraph {
  color: var(--c-text-muted);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}
.sobre__paragraph strong { color: var(--c-text); }

.sobre__differentials {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}
.differential {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  transition: border-color var(--t-base), background var(--t-base);
}
.differential:hover {
  border-color: var(--c-border-bright);
  background: var(--c-surface-hover);
}
.differential__icon { font-size: 1.5rem; flex-shrink: 0; }
.differential strong { display: block; color: var(--c-white); font-weight: 600; margin-bottom: .2rem; }
.differential p { font-size: .875rem; color: var(--c-text-muted); }

/* Timeline */
.timeline__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--c-border);
}

.timeline__list {
  position: relative;
  padding-left: 1.5rem;
}
.timeline__list::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--c-blue), transparent);
  border-radius: var(--r-full);
}

.timeline__item {
  position: relative;
  margin-bottom: 2rem;
  padding-left: 1.75rem;
}
.timeline__item:last-child { margin-bottom: 0; }

.timeline__dot {
  position: absolute;
  left: -1.875rem;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-blue);
  border: 2px solid var(--c-bg-2);
  box-shadow: 0 0 10px var(--c-blue-glow);
}
.timeline__dot--first { background: var(--c-text-muted); box-shadow: none; }

.timeline__year {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-blue-bright);
  margin-bottom: .35rem;
}
.timeline__role {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: .35rem;
}
.timeline__desc { font-size: .875rem; color: var(--c-text-muted); line-height: 1.6; }

/* ─── 9. STACK ───────────────────────────────────────────────────────────── */
.stack { background: var(--c-bg); }

.stack__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.tech-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: all var(--t-slow);
  cursor: default;
}
.tech-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--glow, var(--c-blue)) 15%, transparent) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--t-slow);
}
.tech-card::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 1px solid var(--glow, var(--c-blue));
  opacity: 0;
  transition: opacity var(--t-slow);
}
.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px color-mix(in srgb, var(--glow, var(--c-blue)) 20%, transparent);
}
.tech-card:hover::before { opacity: 1; }
.tech-card:hover::after  { opacity: 1; }

.tech-card__icon { font-size: 2rem; margin-bottom: 1rem; }
.tech-card__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: .4rem;
}
.tech-card__desc { font-size: .85rem; color: var(--c-text-muted); margin-bottom: 1.25rem; line-height: 1.5; }

.tech-card__bar {
  height: 4px;
  background: var(--c-border);
  border-radius: var(--r-full);
  overflow: hidden;
}
.tech-card__fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--glow, var(--c-blue)), color-mix(in srgb, var(--glow, var(--c-blue)) 60%, #fff));
  border-radius: var(--r-full);
  transition: width 1.2s cubic-bezier(.23,1,.32,1);
}
.tech-card.is-visible .tech-card__fill { width: var(--pct, 0%); }

/* ─── 10. SERVIÇOS ───────────────────────────────────────────────────────── */
.servicos { background: var(--c-bg-2); }

.servicos__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: all var(--t-slow);
  display: flex;
  flex-direction: column;
}
.service-card__glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-blue), transparent);
  opacity: 0;
  transition: opacity var(--t-slow);
}
.service-card:hover { transform: translateY(-8px); border-color: var(--c-border-bright); }
.service-card:hover .service-card__glow { opacity: 1; }
.service-card:hover { box-shadow: 0 30px 60px rgba(59,130,246,.1); }

.service-card__icon {
  width: 52px;
  height: 52px;
  background: rgba(59,130,246,.1);
  border: 1px solid rgba(59,130,246,.2);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: background var(--t-base);
}
.service-card__icon svg { width: 26px; height: 26px; stroke: var(--c-blue); }
.service-card:hover .service-card__icon { background: rgba(59,130,246,.2); }

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: .75rem;
}
.service-card__desc { font-size: .9rem; color: var(--c-text-muted); line-height: 1.6; margin-bottom: 1.25rem; }

.service-card__list {
  flex: 1;
  list-style: none;
  margin-bottom: 1.75rem;
}
.service-card__list li {
  font-size: .875rem;
  color: var(--c-text-muted);
  padding: .4rem 0;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.service-card__list li:last-child { border: none; }
.service-card__list li::before {
  content: '→';
  color: var(--c-blue);
  font-size: .75rem;
  flex-shrink: 0;
}

.service-card__btn {
  font-size: .875rem;
  font-weight: 600;
  color: var(--c-blue-bright);
  transition: color var(--t-base), gap var(--t-base);
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  margin-top: auto;
}
.service-card__btn:hover { color: var(--c-white); }

/* ─── 11. PORTFÓLIO ──────────────────────────────────────────────────────── */
.portfolio { background: var(--c-bg); }

/* Filters */
.portfolio__filters {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  justify-content: center;
  margin-bottom: 3rem;
}
.filter-btn {
  font-size: .85rem;
  font-weight: 600;
  padding: .5rem 1.25rem;
  border-radius: var(--r-full);
  border: 1px solid var(--c-border);
  color: var(--c-text-muted);
  background: transparent;
  transition: all var(--t-base);
  cursor: pointer;
}
.filter-btn:hover, .filter-btn--active {
  background: var(--c-blue);
  border-color: var(--c-blue);
  color: #fff;
}

/* Portfolio grid */
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  transition: all var(--t-slow);
  opacity: 1;
}
.project-card.is-hidden {
  display: none;
}
.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--c-border-bright);
  box-shadow: 0 25px 60px rgba(59,130,246,.1);
}

.project-card__image {
  height: 180px;
  background: linear-gradient(135deg, var(--c-bg-3) 0%, var(--c-bg-2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.project-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,.3));
}
.project-card__placeholder { font-size: 4rem; }

.project-card__info { padding: 1.5rem; }

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: 1rem;
}
.tag {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .25rem .65rem;
  border-radius: var(--r-full);
  background: rgba(59,130,246,.1);
  color: var(--c-blue-bright);
  border: 1px solid rgba(59,130,246,.2);
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: .5rem;
}
.project-card__desc { font-size: .875rem; color: var(--c-text-muted); line-height: 1.6; margin-bottom: 1.25rem; }
.project-card__link {
  font-size: .875rem;
  font-weight: 600;
  color: var(--c-blue-bright);
  transition: color var(--t-base);
}
.project-card__link:hover { color: var(--c-white); }

/* ─── 12. BLOG ───────────────────────────────────────────────────────────── */
.blog { background: var(--c-bg-2); }

.blog__filters {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  justify-content: center;
  margin-bottom: 3rem;
}
.blog-filter {
  font-size: .8rem;
  font-weight: 600;
  padding: .4rem 1rem;
  border-radius: var(--r-full);
  border: 1px solid var(--c-border);
  color: var(--c-text-muted);
  background: transparent;
  transition: all var(--t-base);
  cursor: pointer;
}
.blog-filter:hover, .blog-filter--active {
  background: rgba(59,130,246,.12);
  border-color: rgba(59,130,246,.4);
  color: var(--c-blue-bright);
}

.blog__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.blog-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  transition: all var(--t-slow);
}
.blog-card:hover {
  transform: translateY(-6px);
  border-color: var(--c-border-bright);
  box-shadow: 0 20px 50px rgba(59,130,246,.08);
}

.blog-card__image {
  height: 160px;
  background: linear-gradient(135deg, var(--c-bg-3), var(--c-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.blog-card__placeholder { font-size: 3.5rem; }
.blog-card__category {
  position: absolute;
  bottom: .75rem;
  left: .75rem;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--c-blue-bright);
  background: rgba(5,8,18,.85);
  border: 1px solid var(--c-border-bright);
  padding: .25rem .65rem;
  border-radius: var(--r-full);
  backdrop-filter: blur(8px);
}

.blog-card__body { padding: 1.5rem; }
.blog-card__date {
  display: block;
  font-size: .75rem;
  color: var(--c-text-dim);
  margin-bottom: .75rem;
  font-weight: 500;
}
.blog-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.4;
  margin-bottom: .75rem;
  transition: color var(--t-base);
}
.blog-card:hover .blog-card__title { color: var(--c-blue-bright); }
.blog-card__excerpt { font-size: .875rem; color: var(--c-text-muted); line-height: 1.6; margin-bottom: 1.25rem; }
.blog-card__link { font-size: .875rem; font-weight: 600; color: var(--c-blue); transition: color var(--t-base); }
.blog-card__link:hover { color: var(--c-blue-bright); }

.blog__cta { text-align: center; }
.blog__cta p { color: var(--c-text-muted); margin-bottom: 1rem; }

/* ─── 13. CONTATO ────────────────────────────────────────────────────────── */
.contato { background: var(--c-bg); position: relative; }
.contato::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-blue), transparent);
}

.contato__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

/* Form */
.form-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 1.75rem;
}

.form__group { margin-bottom: 1.25rem; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form__label { display: block; font-size: .85rem; font-weight: 600; color: var(--c-text-muted); margin-bottom: .5rem; }

.form__input {
  width: 100%;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  color: var(--c-text);
  padding: .8rem 1rem;
  font-size: .95rem;
  transition: all var(--t-base);
  outline: none;
}
.form__input::placeholder { color: var(--c-text-dim); }
.form__input:focus {
  border-color: var(--c-blue);
  background: rgba(59,130,246,.05);
  box-shadow: 0 0 0 3px rgba(59,130,246,.1);
}
.form__input.is-invalid {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,.1);
}
.form__textarea { resize: vertical; min-height: 130px; }

.form__error {
  display: block;
  font-size: .78rem;
  color: #f87171;
  margin-top: .35rem;
  min-height: 1em;
}

.form__success {
  text-align: center;
  padding: 2rem;
}
.success-icon { font-size: 3rem; margin-bottom: 1rem; }
.form__success h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: .5rem;
}
.form__success p { color: var(--c-text-muted); }

/* Contact Info */
.contato__info-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 1.75rem;
}

.contact-links { display: flex; flex-direction: column; gap: 1rem; }

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  background: var(--c-surface);
  transition: all var(--t-slow);
  text-decoration: none;
}
.contact-link:hover { transform: translateX(4px); border-color: var(--c-border-bright); background: var(--c-surface-hover); }
.contact-link__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-link__icon svg { width: 22px; height: 22px; }

.contact-link--whatsapp .contact-link__icon { background: rgba(37,211,102,.12); color: #25d366; }
.contact-link--instagram .contact-link__icon { background: rgba(225,48,108,.12); color: #e1306c; }
.contact-link--linkedin .contact-link__icon { background: rgba(0,119,181,.12); color: #0077b5; }
.contact-link--github .contact-link__icon { background: rgba(255,255,255,.06); color: var(--c-text); }

.contact-link__label { display: block; font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--c-text-dim); margin-bottom: .1rem; }
.contact-link__value { display: block; font-size: .95rem; font-weight: 500; color: var(--c-text); }

/* ─── 14. FOOTER ─────────────────────────────────────────────────────────── */
.footer { background: var(--c-bg-2); border-top: 1px solid var(--c-border); padding: 4rem 0 0; }

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 4rem;
  margin-bottom: 3rem;
}
.footer__tagline { color: var(--c-text-muted); font-size: .9rem; margin: 1rem 0 1.5rem; max-width: 260px; line-height: 1.6; }

.footer__socials { display: flex; gap: 1rem; }
.footer__socials a {
  width: 38px;
  height: 38px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-base);
}
.footer__socials a svg { width: 18px; height: 18px; color: var(--c-text-muted); transition: color var(--t-base); }
.footer__socials a:hover { border-color: var(--c-blue); background: rgba(59,130,246,.1); }
.footer__socials a:hover svg { color: var(--c-blue-bright); }

.footer__nav { display: flex; gap: 3rem; justify-content: flex-end; }
.footer__nav-col h4 {
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-white);
  margin-bottom: 1rem;
}
.footer__nav-col ul { display: flex; flex-direction: column; gap: .6rem; }
.footer__nav-col a { font-size: .875rem; color: var(--c-text-muted); transition: color var(--t-base); }
.footer__nav-col a:hover { color: var(--c-blue-bright); }

.footer__bottom {
  border-top: 1px solid var(--c-border);
  padding: 1.25rem 0;
}
.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
}
.footer__bottom-inner p { font-size: .825rem; color: var(--c-text-dim); }

/* ─── 15. WHATSAPP FLOAT ─────────────────────────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 58px;
  height: 58px;
  background: linear-gradient(135deg, #25d366, #128c7e);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 30px rgba(37,211,102,.35);
  z-index: 900;
  transition: transform var(--t-spring);
  text-decoration: none;
}
.whatsapp-float svg { width: 30px; height: 30px; color: #fff; }
.whatsapp-float:hover { transform: scale(1.12); }

.whatsapp-float__pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(37,211,102,.4);
  animation: waPulse 2.5s ease-out infinite;
  pointer-events: none;
}
@keyframes waPulse {
  0%   { transform: scale(1); opacity: .7; }
  70%  { transform: scale(1.8); opacity: 0; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* ─── 16. SCROLL REVEAL ──────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s cubic-bezier(.23,1,.32,1), transform .7s cubic-bezier(.23,1,.32,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal--delay-1 { transition-delay: .15s; }
.reveal--delay-2 { transition-delay: .3s; }
.reveal--delay-3 { transition-delay: .45s; }

/* ─── 17. PARTICLES ──────────────────────────────────────────────────────── */
.particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--c-blue);
  border-radius: 50%;
  opacity: 0;
  animation: particleFly var(--dur, 8s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}
@keyframes particleFly {
  0%   { opacity: 0; transform: translateY(0) scale(0); }
  10%  { opacity: .8; transform: translateY(-20px) scale(1); }
  90%  { opacity: .2; transform: translateY(-200px) scale(.5); }
  100% { opacity: 0; transform: translateY(-220px) scale(0); }
}

/* ─── 18. RESPONSIVE ─────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .sobre__grid, .contato__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero__inner { grid-template-columns: 1fr; text-align: center; gap: 3rem; }
  .hero__subtitle { margin: 0 auto 2.5rem; }
  .hero__actions { justify-content: center; }
  .hero__stats { justify-content: center; }
  .hero__visual { order: -1; }
  .float-badge--1 { left: 2%; }
  .float-badge--2 { left: 2%; }
  .float-badge--3 { right: 2%; }
  .float-badge--4 { right: 2%; }
  .footer__inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer__nav { justify-content: flex-start; flex-wrap: wrap; gap: 2rem; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  section { padding: 5rem 0; }
  .nav { display: none; }
  .header__cta { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }

  .hero__title { font-size: 2.2rem; }
  .stack__grid { grid-template-columns: 1fr 1fr; }
  .portfolio__grid { grid-template-columns: 1fr; }
  .blog__grid { grid-template-columns: 1fr; }
  .servicos__grid { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .avatar-container { width: 260px; height: 260px; }
  .avatar-core { width: 170px; height: 170px; }
  .footer__nav { gap: 1.5rem; }
  .footer__nav-col { min-width: 120px; }
}

@media (max-width: 480px) {
  .stack__grid { grid-template-columns: 1fr; }
  .hero__stats { gap: 1.25rem; }
  .stat__number { font-size: 1.75rem; }
  .hero__actions { flex-direction: column; align-items: center; }
  .hero__actions .btn { width: 100%; max-width: 320px; justify-content: center; }
  .portfolio__filters { gap: .5rem; }
  .filter-btn { font-size: .78rem; padding: .4rem 1rem; }
}

/* ─── 19. ULTRAWIDE ──────────────────────────────────────────────────────── */
@media (min-width: 2000px) {
  .container { max-width: 1440px; }
  .section-title { font-size: 3.5rem; }
}

/* ─── 20. REDUCED MOTION ─────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}