/* ==========================================================================
   PBXIP — Corporate SaaS Landing Page
   ========================================================================== */

:root {
  --color-navy: #0c1929;
  --color-navy-light: #132337;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-accent: #06b6d4;
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-800: #1e293b;
  --color-success: #10b981;
  --color-danger: #ef4444;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Poppins', 'Inter', sans-serif;

  --shadow-sm: 0 1px 2px rgba(12, 25, 41, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(12, 25, 41, 0.08), 0 2px 4px -2px rgba(12, 25, 41, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(12, 25, 41, 0.1), 0 4px 6px -4px rgba(12, 25, 41, 0.08);
  --shadow-xl: 0 20px 25px -5px rgba(12, 25, 41, 0.12), 0 8px 10px -6px rgba(12, 25, 41, 0.08);
  --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --header-height: 72px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --container: min(1200px, 100% - 3rem);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-gray-600);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-navy);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); letter-spacing: -0.01em; }
h3 { font-size: 1.125rem; font-weight: 600; }

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

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
  color: var(--color-white);
}

.btn--outline {
  background: transparent;
  border-color: var(--color-gray-200);
  color: var(--color-navy);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.04);
}

.btn--ghost {
  background: transparent;
  color: var(--color-gray-600);
}

.btn--ghost:hover {
  color: var(--color-primary);
  background: var(--color-gray-50);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn--white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-primary-dark);
}

.btn--outline-white {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--color-white);
}

.btn--outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn--sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn--lg { padding: 1rem 2rem; font-size: 1rem; }
.btn--block { width: 100%; }

/* Logo */
.logo {
  display: flex;
  align-items: baseline;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-navy);
  text-decoration: none;
}

.logo__mark { color: var(--color-primary); }
.logo__suffix { color: var(--color-navy); }
.logo--footer .logo__suffix { color: var(--color-gray-200); }

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.header--scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: var(--color-gray-200);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 2rem;
}

.nav__list {
  display: flex;
  gap: 2rem;
}

.nav__list a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gray-600);
}

.nav__list a:hover {
  color: var(--color-primary);
}

.header__actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: var(--transition);
}

/* Hero */
.hero {
  position: relative;
  padding: calc(var(--header-height) + 4rem) 0 5rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(37, 99, 235, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(6, 182, 212, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
  z-index: -1;
}

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

.hero__eyebrow {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-gray-500);
  margin: 1.5rem 0 2rem;
  max-width: 540px;
}

.hero__highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1.5rem;
  margin-bottom: 2.5rem;
}

.hero__highlights li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gray-800);
}

.hero__highlights svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__image-wrap {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.hero__image-wrap img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.hero__float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-navy);
  animation: float 4s ease-in-out infinite;
}

.hero__float-card svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

.hero__float-card--1 { top: 12%; left: -8%; animation-delay: 0s; }
.hero__float-card--2 { bottom: 15%; right: -5%; animation-delay: 2s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Section utilities */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}

.section-header p {
  margin-top: 1rem;
  font-size: 1.0625rem;
}

.section-header--compact {
  margin-bottom: 2.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.inline-cta {
  text-align: center;
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.inline-cta p {
  font-weight: 500;
  color: var(--color-gray-500);
}

/* Social proof */
.social-proof {
  padding: 3rem 0 4rem;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-100);
}

.logo-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 2.5rem 4rem;
}

.logo-strip__item {
  opacity: 0.55;
  transition: opacity var(--transition);
}

.logo-strip__item:hover {
  opacity: 1;
}

.client-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-400);
  letter-spacing: -0.02em;
}

/* Why section */
.why {
  padding: 6rem 0;
  background: var(--color-gray-50);
}

.cards-grid {
  display: grid;
  gap: 1.5rem;
}

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

.feature-card {
  background: var(--color-white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(6, 182, 212, 0.08) 100%);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
}

.feature-card__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.feature-card h3 {
  margin-bottom: 0.625rem;
}

.feature-card p {
  font-size: 0.9375rem;
}

/* About */
.about {
  padding: 6rem 0;
}

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

.about__content p {
  margin-bottom: 1.25rem;
}

.about__content .btn {
  margin-top: 1rem;
}

.about__visual {
  position: relative;
}

.about__diagram {
  position: relative;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1;
  margin: 0 auto 2rem;
}

.diagram__center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  border-radius: 50%;
  box-shadow: var(--shadow-glow);
  z-index: 2;
  font-size: 0.75rem;
  font-weight: 600;
}

.diagram__center svg {
  width: 32px;
  height: 32px;
}

.diagram__node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  padding: 0.875rem 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-navy);
}

.diagram__node svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.diagram__node--1 { top: 5%; left: 5%; }
.diagram__node--2 { top: 5%; right: 5%; }
.diagram__node--3 { bottom: 5%; left: 5%; }
.diagram__node--4 { bottom: 5%; right: 5%; }

.diagram__lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.diagram__lines line {
  stroke: var(--color-gray-200);
  stroke-width: 2;
  stroke-dasharray: 6 4;
}

.about__photo {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Features grid */
.features {
  padding: 6rem 0;
  background: var(--color-navy);
  color: var(--color-gray-200);
}

.features .section-header h2,
.features .section-tag {
  color: var(--color-white);
}

.features .section-header p {
  color: var(--color-gray-400);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
}

.feat-item {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.feat-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(37, 99, 235, 0.4);
  transform: translateY(-2px);
}

.feat-item svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary-light);
  margin-bottom: 1rem;
}

.feat-item h3 {
  color: var(--color-white);
  font-size: 0.9375rem;
  margin-bottom: 0.5rem;
}

.feat-item p {
  font-size: 0.8125rem;
  color: var(--color-gray-400);
  line-height: 1.5;
}

.features .inline-cta p {
  color: var(--color-gray-400);
}

/* Comparison */
.comparison {
  padding: 6rem 0;
  background: var(--color-gray-50);
}

.comparison__grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: stretch;
  max-width: 900px;
  margin: 0 auto;
}

.comparison__card {
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
}

.comparison__card h3 {
  margin-bottom: 1.5rem;
  text-align: center;
}

.comparison__card ul li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  font-size: 0.9375rem;
  border-bottom: 1px solid var(--color-gray-100);
}

.comparison__card ul li:last-child {
  border-bottom: none;
}

.comparison__card--old svg {
  color: var(--color-danger);
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.comparison__card--new {
  position: relative;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.comparison__card--new svg {
  color: var(--color-success);
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.comparison__card--new .btn {
  margin-top: 1.5rem;
}

.comparison__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.375rem 1rem;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
}

.comparison__vs {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-gray-400);
}

/* Timeline */
.timeline-section {
  padding: 6rem 0;
}

.timeline {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.timeline__step {
  display: flex;
  gap: 2rem;
  padding-bottom: 2.5rem;
  position: relative;
}

.timeline__step:last-child {
  padding-bottom: 0;
}

.timeline__number {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-primary);
  z-index: 1;
}

.timeline__content h3 {
  margin-bottom: 0.5rem;
}

/* Testimonials */
.testimonials {
  padding: 6rem 0;
  background: var(--color-gray-50);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--color-white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.testimonial-card__stars {
  color: #fbbf24;
  font-size: 0.875rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.testimonial-card p {
  font-size: 0.9375rem;
  font-style: italic;
  color: var(--color-gray-600);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.testimonial-card footer {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-card footer img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-card cite {
  display: block;
  font-style: normal;
  font-weight: 600;
  color: var(--color-navy);
  font-size: 0.9375rem;
}

.testimonial-card footer span {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}

/* CTA Banner */
.cta-banner {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--color-navy) 0%, #1a365d 50%, var(--color-primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.2) 0%, transparent 40%);
}

.cta-banner__inner {
  position: relative;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: 1rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

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

/* Contact */
.contact {
  padding: 6rem 0;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: start;
}

.contact__channels {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact__channel {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition);
  color: inherit;
}

.contact__channel:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  color: inherit;
}

.contact__channel svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.contact__channel strong {
  display: block;
  color: var(--color-navy);
  font-size: 0.9375rem;
}

.contact__channel span {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

.contact__form {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background: var(--color-gray-50);
  transition: all var(--transition);
  color: var(--color-navy);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--color-danger);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-note {
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  text-align: center;
}

.form-success {
  text-align: center;
  padding: 2rem;
}

.form-success svg {
  width: 48px;
  height: 48px;
  color: var(--color-success);
  margin-bottom: 1rem;
}

/* Footer */
.footer {
  background: var(--color-navy);
  color: var(--color-gray-400);
  padding-top: 4rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer__brand p {
  margin-top: 1rem;
  font-size: 0.9375rem;
  max-width: 320px;
}

.footer .logo {
  color: var(--color-white);
}

.footer h4 {
  color: var(--color-white);
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-sans);
}

.footer__nav ul,
.footer__contact ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer a {
  color: var(--color-gray-400);
  font-size: 0.9375rem;
}

.footer a:hover {
  color: var(--color-white);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
}

/* WhatsApp float */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25d366;
  color: var(--color-white);
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45);
  transition: all var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.08);
  color: var(--color-white);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal--delay {
  transition-delay: 0.15s;
}

/* Responsive */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cards-grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }

  .nav--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    gap: 1rem;
  }

  .header__actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle--active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle--active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle--active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero__grid,
  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .hero__visual {
    order: -1;
  }

  .hero__float-card--1 { left: 2%; }
  .hero__float-card--2 { right: 2%; }

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

  .comparison__vs {
    padding: 0.5rem 0;
  }

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

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(1200px, 100% - 1.5rem);
  }

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

  .hero__cta {
    flex-direction: column;
  }

  .hero__cta .btn {
    width: 100%;
  }

  .cards-grid--3,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact__form {
    padding: 1.5rem;
  }

  .cta-banner__buttons {
    flex-direction: column;
  }

  .cta-banner__buttons .btn {
    width: 100%;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .logo-strip {
    gap: 1.5rem 2rem;
  }

  .client-logo {
    font-size: 1rem;
  }
}

/* Privacy modal */
.privacy-modal {
  border: none;
  padding: 0;
  max-width: 560px;
  width: calc(100% - 2rem);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.privacy-modal::backdrop {
  background: rgba(12, 25, 41, 0.6);
  backdrop-filter: blur(4px);
}

.privacy-modal__content {
  position: relative;
  padding: 2.5rem;
}

.privacy-modal__content h2 {
  margin-bottom: 1rem;
}

.privacy-modal__content p {
  margin-bottom: 1rem;
  font-size: 0.9375rem;
}

.privacy-modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border: none;
  background: var(--color-gray-100);
  border-radius: 50%;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--color-gray-600);
  transition: background var(--transition);
}

.privacy-modal__close:hover {
  background: var(--color-gray-200);
}

.privacy-modal {
  position: fixed;
  margin: auto;
  inset: 0;
  height: fit-content;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transition: opacity 0.3s ease; transform: none; }
  .hero__float-card { animation: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}