/* ========================================
   CLUBE DE PROGRAMACAO - MODERN DESIGN
   ======================================== */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --orange: #F28A1F;
  --orange-light: #FBAD5C;
  --orange-dim: rgba(242, 138, 31, 0.10);
  --orange-glow: rgba(242, 138, 31, 0.06);
  --bg: #060608;
  --bg-elevated: #0C0C10;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(242, 138, 31, 0.25);
  --text: #F0F0F2;
  --text-secondary: #9B9BA7;
  --text-dim: #5C5C6B;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--orange-dim) transparent;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Noise texture overlay for depth */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

::selection {
  background: rgba(242, 138, 31, 0.3);
  color: var(--text);
}

/* ---- ANIMATED BACKGROUND GRID ---- */
.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 40%, transparent 100%);
}

/* ---- NAVBAR ---- */
nav {
  position: fixed;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  padding: 0 24px;
  height: 56px;
  width: calc(100% - 32px);
  max-width: 1120px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(6, 6, 8, 0.7);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: background var(--transition), border-color var(--transition);
}

nav.scrolled {
  background: rgba(6, 6, 8, 0.9);
  border-color: rgba(255, 255, 255, 0.08);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  transition: opacity var(--transition);
}

.nav-logo:hover { opacity: 0.85; }

.nav-logo img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid rgba(242, 138, 31, 0.3);
}

.nav-logo span {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links li a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-links li a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-cta {
  background: var(--orange) !important;
  color: var(--bg) !important;
  padding: 8px 18px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  font-size: 13px !important;
  text-decoration: none;
  transition: all var(--transition) !important;
  box-shadow: 0 0 20px rgba(242, 138, 31, 0.2);
}

.nav-cta:hover {
  background: var(--orange-light) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 24px rgba(242, 138, 31, 0.35) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 101;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ---- MOBILE MENU ---- */
.mobile-menu {
  display: none;
  position: fixed;
  top: 76px;
  left: 16px;
  right: 16px;
  background: rgba(6, 6, 8, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  z-index: 99;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-menu.open { display: block; }

.mobile-menu a {
  display: block;
  padding: 14px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.mobile-menu a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

/* ---- CONTAINER ---- */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- HERO ---- */
.hero {
  padding: 180px 0 120px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100%;
  background:
    radial-gradient(circle, rgba(242, 138, 31, 0.12) 0%, rgba(242, 138, 31, 0.04) 35%, transparent 65%),
    radial-gradient(ellipse 120% 60% at 50% 40%, rgba(242, 138, 31, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  animation: heroPulse 8s ease-in-out infinite;
}

@keyframes heroPulse {
  0%, 100% { opacity: 0.7; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.08); }
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  color: var(--orange);
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 40px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--orange);
  border-radius: 50%;
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { opacity: 0.5; box-shadow: 0 0 0 0 rgba(242, 138, 31, 0.4); }
  50% { opacity: 1; box-shadow: 0 0 0 4px rgba(242, 138, 31, 0); }
}

.hero h1 {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 24px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-light) 40%, #fff 50%, var(--orange-light) 60%, var(--orange) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 6s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--orange);
  color: var(--bg);
  padding: 14px 36px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 0 24px rgba(242, 138, 31, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::after {
  left: 100%;
}

.btn-primary:hover {
  background: var(--orange-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(242, 138, 31, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text);
  padding: 14px 36px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  border: 1px solid var(--border);
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: all var(--transition);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-2px);
}

/* ---- SECTION GENERAL ---- */
section {
  padding: 120px 0;
  position: relative;
}

.section-label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  opacity: 0.8;
  text-align: center;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin-bottom: 16px;
  text-align: center;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.75;
  text-align: center;
  margin: 0 auto;
}

/* ---- DIVIDER ---- */
.divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(242, 138, 31, 0.15), rgba(242, 138, 31, 0.25), rgba(242, 138, 31, 0.15), transparent);
  margin: 0;
}

/* ---- CTA ---- */
.cta-section {
  text-align: center;
  padding: 80px 0 120px;
}

.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 80px 48px;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(242, 138, 31, 0.12) 0%, rgba(242, 138, 31, 0.04) 40%, transparent 60%);
  pointer-events: none;
  animation: ctaPulse 6s ease-in-out infinite;
}

@keyframes ctaPulse {
  0%, 100% { opacity: 0.5; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.05); }
}

.cta-box::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(242, 138, 31, 0.4), var(--orange), rgba(242, 138, 31, 0.4), transparent);
}

.cta-box .section-label,
.cta-box .section-title,
.cta-box .section-desc,
.cta-box .btn-primary {
  position: relative;
  z-index: 1;
}

.cta-box .section-desc {
  margin: 0 auto 40px;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  padding: 14px 36px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--text);
}

/* ---- MODAL ---- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.open {
  display: flex;
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-card {
  background: rgba(12, 12, 16, 0.9);
  border: 1px solid rgba(242, 138, 31, 0.1);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  max-width: 420px;
  width: 100%;
  position: relative;
  text-align: center;
  animation: modalSlideUp 0.3s ease;
  backdrop-filter: blur(32px) saturate(1.5);
  -webkit-backdrop-filter: blur(32px) saturate(1.5);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 60px rgba(242, 138, 31, 0.05);
}

@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.modal-close:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.modal-header h2 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.modal-header p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.modal-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid var(--border);
}

.modal-link:hover {
  transform: translateY(-2px);
}

.modal-link-whatsapp {
  background: rgba(37, 211, 102, 0.1);
  color: #25d366;
  border-color: rgba(37, 211, 102, 0.2);
}

.modal-link-whatsapp:hover {
  background: rgba(37, 211, 102, 0.18);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.15);
}

/* ---- TOOLS / CALCULATORS ---- */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}

.tool-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 8px 40px rgba(242, 138, 31, 0.06);
}

.tool-header {
  padding: 32px 28px 20px;
}

.tool-icon {
  width: 48px;
  height: 48px;
  background: var(--orange-dim);
  border: 1px solid rgba(242, 138, 31, 0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.tool-header h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.tool-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.tool-body {
  padding: 0 28px 28px;
}

.tool-field {
  margin-bottom: 16px;
  position: relative;
}

.tool-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

.tool-input {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.tool-input:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(242, 138, 31, 0.1);
}

select.tool-input {
  cursor: pointer;
}

select.tool-input option {
  background: #0C0C10;
  color: var(--text);
}

.tool-input::placeholder {
  color: var(--text-dim);
}

.tool-pesos {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.tool-peso-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  background: rgba(242, 138, 31, 0.08);
  color: var(--orange);
  border: 1px solid rgba(242, 138, 31, 0.12);
  letter-spacing: 0.02em;
}

.tool-peso-label {
  font-size: 11px;
  color: var(--orange);
  font-weight: 500;
  opacity: 0.8;
}

.tool-btn {
  width: 100%;
  padding: 14px;
  background: var(--orange);
  color: var(--bg);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  font-family: 'Inter', sans-serif;
  margin-top: 8px;
  box-shadow: 0 0 20px rgba(242, 138, 31, 0.15);
}

.tool-btn:hover {
  background: var(--orange-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 24px rgba(242, 138, 31, 0.3);
}

.tool-notas-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.tool-notas-grid .tool-field {
  margin-bottom: 0;
  position: relative;
}

.tool-result {
  margin-top: 16px;
  padding: 20px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  animation: resultFadeIn 0.3s ease;
}

@keyframes resultFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.tool-result .result-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.tool-result .result-value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.tool-result .result-value.aprovado {
  color: #22c55e;
  text-shadow: 0 0 20px rgba(34, 197, 94, 0.3);
}

.tool-result .result-value.reprovado {
  color: #ef4444;
  text-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
}

.tool-result .result-value.final {
  color: var(--orange);
  text-shadow: 0 0 20px rgba(242, 138, 31, 0.3);
}

.tool-result .result-detail {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 8px;
  line-height: 1.6;
}

.tool-result .result-bar {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  margin-top: 12px;
  overflow: hidden;
}

.tool-result .result-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.result-bar-fill.green { background: linear-gradient(90deg, #22c55e, #4ade80); }
.result-bar-fill.orange { background: linear-gradient(90deg, var(--orange), var(--orange-light)); }
.result-bar-fill.red { background: linear-gradient(90deg, #ef4444, #f87171); }

/* ---- Result sections & table ---- */
.result-section {
  margin-bottom: 8px;
}

.result-divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

.result-status {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  margin: 8px 0;
  letter-spacing: 0.02em;
}

.result-status.aprovado-bg {
  background: rgba(34, 197, 94, 0.12);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.result-status.final-bg {
  background: rgba(242, 138, 31, 0.12);
  color: var(--orange);
  border: 1px solid rgba(242, 138, 31, 0.2);
}

.result-status.reprovado-bg {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 4px;
  font-size: 13px;
}

.result-table thead th {
  text-align: left;
  padding: 8px 12px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

.result-table tbody td {
  padding: 8px 12px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.result-table tbody tr:last-child td {
  border-bottom: none;
}

.result-formula {
  margin-top: 10px;
  padding: 10px 14px;
  background: rgba(242, 138, 31, 0.06);
  border: 1px solid rgba(242, 138, 31, 0.12);
  border-radius: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--orange);
  font-weight: 600;
}

.tool-result .result-value.final-nota {
  color: #60a5fa;
  text-shadow: 0 0 20px rgba(96, 165, 250, 0.3);
}

/* ---- Custom number input spinners ---- */
input[type="number"].tool-input {
  -moz-appearance: textfield;
  appearance: textfield;
}

input[type="number"].tool-input::-webkit-inner-spin-button,
input[type="number"].tool-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.tool-number-wrap {
  position: relative;
  display: flex;
  align-items: stretch;
}

.tool-number-wrap .tool-input {
  padding-right: 38px;
  width: 100%;
}

.tool-number-btns {
  position: absolute;
  right: 1px;
  top: 1px;
  bottom: 1px;
  width: 32px;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border);
  border-radius: 0 calc(var(--radius-sm) - 1px) calc(var(--radius-sm) - 1px) 0;
  overflow: hidden;
}

.tool-number-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  border: none;
  cursor: pointer;
  color: var(--text-dim);
  padding: 0;
  transition: all var(--transition);
}

.tool-number-btn:hover {
  background: rgba(242, 138, 31, 0.12);
  color: var(--orange);
}

.tool-number-btn:active {
  background: rgba(242, 138, 31, 0.2);
}

.tool-number-btn + .tool-number-btn {
  border-top: 1px solid var(--border);
}

.tool-number-btn svg {
  width: 12px;
  height: 12px;
}

/* ---- Custom select styling ---- */
.tool-select-wrap {
  position: relative;
}

.tool-select-wrap select.tool-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: none;
  padding-right: 42px;
  cursor: pointer;
}

.tool-select-arrow {
  position: absolute;
  right: 1px;
  top: 1px;
  bottom: 1px;
  width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  border-left: 1px solid var(--border);
  border-radius: 0 calc(var(--radius-sm) - 1px) calc(var(--radius-sm) - 1px) 0;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-dim);
  transition: color var(--transition);
}

.tool-select-wrap:hover .tool-select-arrow {
  color: var(--orange);
}

/* ---- FOOTER ---- */
footer {
  border-top: none;
  padding: 32px 0;
  position: relative;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(242, 138, 31, 0.2), rgba(242, 138, 31, 0.3), rgba(242, 138, 31, 0.2), transparent);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-left span {
  font-size: 13px;
  color: var(--text-dim);
}

.footer-tech {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  opacity: 0.6;
}

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

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

/* ---- ANIMATIONS ---- */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  nav {
    top: 8px;
    width: calc(100% - 24px);
  }

  .nav-links { display: none; }
  .hamburger { display: flex; }

  .hero { padding: 140px 0 80px; }

  section { padding: 80px 0; }

  .tools-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tool-notas-grid {
    grid-template-columns: 1fr;
  }

  .cta-box { padding: 48px 24px; }

  .footer-inner {
    justify-content: center;
    text-align: center;
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 36px; }
}