/* ============================================================
   TAVEUS TECNOLOGIA — style.css
   Design: Aurora Flow — Light theme, azul corporativo + verde vibrante
   Tipografia: Space Grotesk (headlines) + Inter (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

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

:root {
  --blue:       #1E3A8A;
  --blue-mid:   #2563EB;
  --blue-light: #DBEAFE;
  --green:      #059669;
  --green-mid:  #10B981;
  --green-light:#D1FAE5;
  --bg:         #F8FAFC;
  --bg-white:   #FFFFFF;
  --surface:    #F1F5F9;
  --border:     #E2E8F0;
  --text:       #0F172A;
  --text-mid:   #334155;
  --text-muted: #64748B;
  --radius:     12px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.1), 0 4px 12px rgba(0,0,0,.05);
  --ease-out:   cubic-bezier(0.23, 1, 0.32, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.2;
  font-weight: 700;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Gradient text ── */
.gradient-text {
  background: linear-gradient(135deg, var(--blue-mid), var(--green-mid));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   HEADER
   ============================================================ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s var(--ease-out), box-shadow .3s var(--ease-out);
}
#header.scrolled {
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo img { height: 40px; width: auto; }
.logo:hover img { transform: scale(1.04); transition: transform .2s var(--ease-out); }

.header-right { display: flex; align-items: center; gap: 1.5rem; }

nav { display: flex; align-items: center; gap: 1.5rem; }
nav a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color .2s;
  position: relative;
}
nav a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 2px;
  background: var(--green-mid);
  transform: scaleX(0);
  transition: transform .2s var(--ease-out);
}
nav a:hover { color: var(--text); }
nav a:hover::after { transform: scaleX(1); }

/* Language selector */
.lang-selector { position: relative; }
.lang-btn {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem .7rem;
  border-radius: 8px;
  font-size: .8rem;
  font-weight: 500;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: transparent;
  transition: all .2s;
}
.lang-btn:hover { background: var(--surface); color: var(--text); }
.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-md);
  min-width: 160px;
  overflow: hidden;
  z-index: 200;
}
.lang-selector.open .lang-dropdown { display: block; }
.lang-option {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .65rem 1rem;
  font-size: .85rem;
  color: var(--text-mid);
  transition: background .15s;
  width: 100%;
  text-align: left;
}
.lang-option:hover { background: var(--surface); }
.lang-option.active { color: var(--blue-mid); font-weight: 600; }
.lang-option .check { margin-left: auto; color: var(--green-mid); }

/* Login button */
.btn-login {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .55rem 1.2rem;
  background: linear-gradient(135deg, var(--green), var(--green-mid));
  color: #fff;
  border-radius: 10px;
  font-size: .875rem;
  font-weight: 600;
  transition: all .2s var(--ease-out);
  box-shadow: 0 2px 8px rgba(16,185,129,.3);
}
.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(16,185,129,.4);
}
.btn-login:active { transform: scale(.97); }

/* Mobile menu */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 6px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: .5rem;
  padding: 1rem 1.5rem 1.5rem;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
}
.mobile-nav.open { display: flex; }
.mobile-nav a { padding: .6rem 0; font-weight: 500; color: var(--text-mid); border-bottom: 1px solid var(--border); }
.mobile-nav .btn-login { margin-top: .5rem; justify-content: center; }

/* ============================================================
   HERO
   ============================================================ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 68px;
  background: linear-gradient(135deg, #EFF6FF 0%, #F0FDF4 50%, #F8FAFC 100%);
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,.08) 0%, transparent 70%);
  pointer-events: none;
}
#hero::after {
  content: '';
  position: absolute;
  bottom: -10%; left: -5%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(16,185,129,.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  animation: fadeUp .8s var(--ease-out) both;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem 1rem;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green-mid);
  animation: pulse 2s infinite;
}
.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 1.25rem;
  letter-spacing: -.02em;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 520px;
  line-height: 1.7;
}
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.8rem;
  background: linear-gradient(135deg, var(--green), var(--green-mid));
  color: #fff;
  border-radius: 12px;
  font-size: .95rem;
  font-weight: 700;
  transition: all .2s var(--ease-out);
  box-shadow: 0 4px 16px rgba(16,185,129,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(16,185,129,.45); }
.btn-primary:active { transform: scale(.97); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.8rem;
  background: var(--bg-white);
  color: var(--blue-mid);
  border: 1.5px solid var(--blue-mid);
  border-radius: 12px;
  font-size: .95rem;
  font-weight: 600;
  transition: all .2s var(--ease-out);
}
.btn-secondary:hover { background: var(--blue-light); transform: translateY(-1px); }
.btn-secondary:active { transform: scale(.97); }

.hero-stats {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.stat-value { font-family: 'Space Grotesk', sans-serif; font-size: 1.8rem; font-weight: 800; color: var(--text); }
.stat-label { font-size: .8rem; color: var(--text-muted); margin-top: .1rem; }

/* ============================================================
   SERVICES
   ============================================================ */
#services {
  padding: 6rem 0;
  background: var(--bg-white);
}
.section-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--blue-mid);
  margin-bottom: .75rem;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 1rem;
}
.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
}
.section-header { margin-bottom: 3rem; }

/* Tabs */
.tabs-nav {
  display: flex;
  gap: .75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.tab-btn {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .75rem 1.5rem;
  border-radius: 12px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface);
  border: 2px solid transparent;
  transition: all .25s var(--ease-out);
}
.tab-btn:hover { background: var(--blue-light); color: var(--blue-mid); }
.tab-btn.active {
  background: var(--bg-white);
  color: var(--blue-mid);
  border-color: var(--blue-mid);
  box-shadow: var(--shadow-sm);
}
.tab-btn .tab-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green-mid);
  display: none;
  animation: pulse 2s infinite;
}
.tab-btn.active .tab-dot { display: block; }

/* Tab panels */
.tab-panel { display: none; animation: fadeUp .4s var(--ease-out) both; }
.tab-panel.active { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: start; }

.service-main {
  background: linear-gradient(135deg, #EFF6FF, #F0FDF4);
  border-radius: 20px;
  padding: 2.5rem;
  border: 1px solid var(--border);
}
.service-icon { width: 64px; height: 64px; margin-bottom: 1.5rem; }
.service-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: .75rem;
}
.service-desc {
  font-size: .95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.service-highlight {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem 1rem;
  background: var(--bg-white);
  border-radius: 8px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--blue-mid);
  border: 1px solid var(--blue-light);
  margin-bottom: 1.5rem;
}
.btn-contract {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  background: linear-gradient(135deg, var(--green), var(--green-mid));
  color: #fff;
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 700;
  transition: all .2s var(--ease-out);
  box-shadow: 0 3px 12px rgba(16,185,129,.3);
}
.btn-contract:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(16,185,129,.4); }
.btn-contract:active { transform: scale(.97); }

.service-features { display: flex; flex-direction: column; gap: 1rem; }
.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  transition: all .25s var(--ease-out);
  box-shadow: var(--shadow-sm);
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--blue-light); }
.feature-title { font-size: .9rem; font-weight: 700; color: var(--text); margin-bottom: .3rem; }
.feature-desc { font-size: .82rem; color: var(--text-muted); line-height: 1.5; }

/* Dots indicator */
.tabs-dots {
  display: none;
  justify-content: center;
  gap: .5rem;
  margin-top: 1.5rem;
}
.tab-dot-indicator {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: all .25s;
  cursor: pointer;
}
.tab-dot-indicator.active { background: var(--blue-mid); width: 20px; border-radius: 4px; }

/* ============================================================
   CONTACT
   ============================================================ */
#contact {
  padding: 6rem 0;
  background: linear-gradient(135deg, #EFF6FF 0%, #F0FDF4 100%);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}
.contact-info-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 1rem;
}
.contact-info-desc {
  font-size: .95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-white);
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: .75rem;
  transition: all .2s;
}
.contact-item:hover { box-shadow: var(--shadow-sm); border-color: var(--blue-light); }
.contact-item-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--blue-mid);
  font-size: 1.1rem;
}
.contact-item-label { font-size: .75rem; color: var(--text-muted); margin-bottom: .2rem; }
.contact-item-value { font-size: .9rem; font-weight: 600; color: var(--text); }
.contact-item-value a { color: inherit; }

/* Form */
.contact-form {
  background: var(--bg-white);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-mid);
  margin-bottom: .4rem;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: .75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: .9rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
  background: var(--bg-white);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748B' d='M1 1l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; }
.btn-submit {
  width: 100%;
  padding: .9rem;
  background: linear-gradient(135deg, var(--green), var(--green-mid));
  color: #fff;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  transition: all .2s var(--ease-out);
  box-shadow: 0 4px 16px rgba(16,185,129,.35);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
}
.btn-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(16,185,129,.45); }
.btn-submit:active { transform: scale(.98); }

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem; right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-size: .9rem;
  font-weight: 600;
  color: #fff;
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all .35s var(--ease-out);
  box-shadow: var(--shadow-lg);
  max-width: 340px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: linear-gradient(135deg, var(--green), var(--green-mid)); }
.toast.error { background: linear-gradient(135deg, #DC2626, #EF4444); }

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 3.5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}
.footer-logo { height: 36px; width: auto; margin-bottom: 1rem; }
.footer-desc { font-size: .875rem; color: var(--text-muted); line-height: 1.7; max-width: 280px; }
.footer-col-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mid);
  margin-bottom: 1rem;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.footer-links a { font-size: .875rem; color: var(--text-muted); transition: color .2s; }
.footer-links a:hover { color: var(--blue-mid); }
.footer-social { display: flex; gap: .75rem; margin-top: .5rem; }
.social-btn {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all .2s;
}
.social-btn:hover { background: var(--blue-light); color: var(--blue-mid); border-color: var(--blue-light); }
.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
}
.footer-copy { font-size: .8rem; color: var(--text-muted); }
.footer-badge {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .75rem;
  color: var(--text-muted);
}
.footer-badge span { width: 6px; height: 6px; border-radius: 50%; background: var(--green-mid); }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--bg-white);
  border-radius: 20px;
  padding: 2.5rem;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  animation: scaleIn .3s var(--ease-out) both;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: all .2s;
}
.modal-close:hover { background: var(--border); color: var(--text); }
.modal-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-light), var(--green-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}
.modal-title { font-size: 1.4rem; font-weight: 800; color: var(--text); margin-bottom: .4rem; }
.modal-subtitle { font-size: .875rem; color: var(--text-muted); margin-bottom: 1.75rem; }

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #EFF6FF 0%, #F0FDF4 50%, #F8FAFC 100%);
  display: flex;
  flex-direction: column;
}
.login-header {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.login-header img { height: 36px; width: auto; }
.login-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
}
.login-card {
  background: var(--bg-white);
  border-radius: 24px;
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  animation: fadeUp .6s var(--ease-out) both;
}
.login-logo { height: 44px; width: auto; margin: 0 auto 2rem; display: block; }
.login-title { font-size: 1.6rem; font-weight: 800; color: var(--text); text-align: center; margin-bottom: .4rem; }
.login-subtitle { font-size: .875rem; color: var(--text-muted); text-align: center; margin-bottom: 2rem; }
.input-icon-wrap { position: relative; }
.input-icon-wrap .icon {
  position: absolute;
  left: .9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: .95rem;
  pointer-events: none;
}
.input-icon-wrap .form-input { padding-left: 2.5rem; }
.input-icon-wrap .toggle-pass {
  position: absolute;
  right: .9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: .95rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: color .2s;
}
.input-icon-wrap .toggle-pass:hover { color: var(--text); }
.login-error {
  display: none;
  padding: .75rem 1rem;
  background: #FEF2F2;
  border: 1px solid #FECACA;
  border-radius: 10px;
  color: #DC2626;
  font-size: .875rem;
  font-weight: 500;
  margin-bottom: 1.25rem;
  align-items: center;
  gap: .5rem;
}
.login-error.show { display: flex; }
.forgot-link {
  display: block;
  text-align: center;
  margin-top: 1rem;
  font-size: .875rem;
  color: var(--blue-mid);
  font-weight: 500;
  transition: color .2s;
}
.forgot-link:hover { color: var(--blue); text-decoration: underline; }
.back-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  margin-top: 1.5rem;
  font-size: .875rem;
  color: var(--text-muted);
  transition: color .2s;
}
.back-link:hover { color: var(--text); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(.95); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .5; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .tab-panel.active { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 640px) {
  nav, .btn-login { display: none; }
  .hamburger { display: flex; }
  .hero-ctas { flex-direction: column; }
  .btn-primary, .btn-secondary { justify-content: center; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .tabs-dots { display: flex; }
  .tabs-nav { gap: .5rem; }
  .tab-btn { padding: .6rem 1rem; font-size: .82rem; }
  .login-card { padding: 2rem 1.5rem; }
}