/* =============================================
   MensajeDirecto Landing Page - Styles v2
   ============================================= */

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

:root {
  /* Brand Colors */
  --md-primary: #E8457C;
  --md-primary-dark: #C63666;
  --md-primary-light: #ED6894;
  --md-primary-lightest: #FCE5ED;
  --md-secondary: #F8B42E;
  --md-secondary-dark: #D99820;
  --md-secondary-light: #FAC555;
  --md-secondary-lightest: #FEF3DC;
  --md-tertiary: #6B3668;
  --md-tertiary-dark: #4D2749;
  --md-tertiary-light: #8A5287;
  --md-tertiary-lightest: #E8DCE7;

  /* Neutrals */
  --md-white: #FFFFFF;
  --md-gray-50: #FAFAFA;
  --md-gray-100: #F5F5F5;
  --md-gray-200: #EEEEEE;
  --md-gray-300: #E0E0E0;
  --md-gray-400: #BDBDBD;
  --md-gray-500: #9E9E9E;
  --md-gray-600: #757575;
  --md-gray-700: #616161;
  --md-gray-800: #424242;
  --md-gray-900: #212121;

  /* Status */
  --md-success: #28C76F;
  --md-info: #00BAD1;

  /* Layout */
  --max-width: 1200px;
  --section-padding: 100px 0;
  --border-radius: 12px;
  --border-radius-lg: 20px;
  --transition: all 0.3s ease;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family);
  color: var(--md-gray-900);
  background: var(--md-white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--md-gray-600);
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
  line-height: 1.7;
}

.highlight {
  color: var(--md-primary);
}

.highlight-secondary {
  color: var(--md-secondary);
}

.highlight-tertiary {
  color: var(--md-tertiary);
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
}

.navbar-logo img {
  height: 52px;
}

.navbar-links {
  display: flex;
  gap: 32px;
  list-style: none;
  align-items: center;
}

.navbar-links a {
  color: var(--md-gray-700);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: var(--transition);
}

.navbar.scrolled .navbar-links a {
  color: var(--md-gray-700);
}

.navbar-links a:hover {
  color: var(--md-primary);
}

.navbar-cta {
  background: var(--md-primary);
  color: var(--md-white) !important;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.navbar-cta:hover {
  background: var(--md-primary-dark);
  color: var(--md-white) !important;
  transform: translateY(-1px);
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--md-gray-800);
  margin: 5px 0;
  transition: var(--transition);
  border-radius: 2px;
}

/* --- Hero Section (Split Layout) --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 40px;
  background: linear-gradient(165deg, var(--md-white) 0%, var(--md-primary-lightest) 40%, var(--md-tertiary-lightest) 100%);
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
  margin: 0 auto;
}

.hero-left {
  text-align: left;
}

.hero-badge {
  display: inline-block;
  background: var(--md-primary);
  color: var(--md-white);
  padding: 6px 20px;
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: var(--font-size-5xl);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--md-gray-600);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero .subscribe-form {
  max-width: 100%;
  margin: 0;
}

.hero .subscribe-feedback {
  text-align: left;
}

/* Social Proof */
.social-proof {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

.social-proof-avatars {
  display: flex;
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--md-white);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: -8px;
  border: 2px solid var(--md-white);
}

.avatar:first-child {
  margin-left: 0;
}

.social-proof p {
  font-size: var(--font-size-sm);
  color: var(--md-gray-600);
  margin: 0;
}

/* Hero Mockup */
.hero-mockup {
  background: var(--md-white);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 20px 60px rgba(107, 54, 104, 0.15), 0 1px 3px rgba(0,0,0,0.05);
  overflow: hidden;
  border: 1px solid var(--md-gray-200);
}

.mockup-header {
  background: var(--md-gray-900);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--md-gray-700);
}

.mockup-dots span:first-child { background: #FF5F57; }
.mockup-dots span:nth-child(2) { background: #FFBD2E; }
.mockup-dots span:nth-child(3) { background: #28CA41; }

.mockup-title {
  font-size: 11px;
  color: var(--md-gray-400);
  font-weight: 500;
}

.mockup-body {
  display: grid;
  grid-template-columns: 180px 1fr;
  min-height: 300px;
}

.mockup-sidebar {
  border-right: 1px solid var(--md-gray-200);
  padding: 8px 0;
  background: var(--md-gray-50);
}

.mockup-chat {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  cursor: default;
  transition: var(--transition);
}

.mockup-chat.active {
  background: var(--md-primary-lightest);
}

.mockup-chat-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: var(--md-white);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mockup-chat-info {
  overflow: hidden;
  min-width: 0;
}

.mockup-chat-info .name {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--md-gray-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mockup-chat-info .preview {
  display: block;
  font-size: 10px;
  color: var(--md-gray-500);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mockup-badge {
  background: var(--md-primary);
  color: var(--md-white);
  font-size: 9px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 10px;
  flex-shrink: 0;
}

.mockup-conversation {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mockup-msg {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 11px;
  line-height: 1.4;
}

.mockup-msg.received {
  background: var(--md-gray-100);
  color: var(--md-gray-800);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.mockup-msg.sent {
  background: var(--md-primary);
  color: var(--md-white);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  position: relative;
}

.mockup-ia-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: rgba(255,255,255,0.25);
  padding: 1px 6px;
  border-radius: 8px;
  font-size: 9px;
  font-weight: 700;
  margin-bottom: 4px;
}

.mockup-typing {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  background: var(--md-gray-100);
  border-radius: 12px;
  align-self: flex-start;
  width: 48px;
}

.mockup-typing span {
  width: 6px;
  height: 6px;
  background: var(--md-gray-400);
  border-radius: 50%;
  animation: typing 1.4s infinite;
}

.mockup-typing span:nth-child(2) { animation-delay: 0.2s; }
.mockup-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

/* Hero Countdown (below main content) */
.hero-countdown-wrapper {
  position: relative;
  z-index: 1;
  text-align: center;
  margin-top: 48px;
}

.countdown-label-text {
  font-size: var(--font-size-sm);
  color: var(--md-gray-500);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.countdown {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.countdown-item {
  background: var(--md-white);
  border-radius: var(--border-radius);
  padding: 16px 14px;
  min-width: 80px;
  box-shadow: 0 4px 24px rgba(107, 54, 104, 0.08);
  border: 1px solid rgba(232, 69, 124, 0.1);
}

.countdown-number {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--md-tertiary);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.countdown-label {
  font-size: var(--font-size-xs);
  color: var(--md-gray-500);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 6px;
  font-weight: 600;
}

/* --- Subscribe Form --- */
.subscribe-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}

.subscribe-form input {
  flex: 1;
  padding: 16px 24px;
  border: 2px solid var(--md-gray-200);
  border-radius: 50px;
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  outline: none;
  transition: var(--transition);
  background: var(--md-white);
}

.subscribe-form input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 4px rgba(232, 69, 124, 0.1);
}

.subscribe-form input::placeholder {
  color: var(--md-gray-400);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 28px;
  background: var(--md-primary);
  color: var(--md-white);
  border: none;
  border-radius: 50px;
  font-size: var(--font-size-base);
  font-weight: 700;
  font-family: var(--font-family);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--md-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 69, 124, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 28px;
  background: transparent;
  color: var(--md-primary);
  border: 2px solid var(--md-primary);
  border-radius: 50px;
  font-size: var(--font-size-base);
  font-weight: 700;
  font-family: var(--font-family);
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: var(--md-primary);
  color: var(--md-white);
  transform: translateY(-2px);
}

.subscribe-feedback {
  margin-top: 12px;
  font-size: var(--font-size-sm);
  min-height: 24px;
}

.subscribe-feedback.success {
  color: var(--md-success);
}

.subscribe-feedback.error {
  color: #FF4C51;
}

/* --- About Section --- */
.about {
  padding: var(--section-padding);
  background: var(--md-white);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 60px;
}

.about-card {
  text-align: center;
  padding: 40px 24px;
  border-radius: var(--border-radius-lg);
  transition: var(--transition);
  border: 1px solid var(--md-gray-200);
}

.about-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
  border-color: var(--md-primary-light);
}

.about-card-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: var(--md-primary-lightest);
  color: var(--md-primary);
}

.about-card:nth-child(2) .about-card-icon {
  background: var(--md-secondary-lightest);
  color: var(--md-secondary-dark);
}

.about-card:nth-child(3) .about-card-icon {
  background: var(--md-tertiary-lightest);
  color: var(--md-tertiary);
}

.about-card:nth-child(4) .about-card-icon {
  background: #E0F7FA;
  color: var(--md-info);
}

.about-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: 12px;
}

.about-card p {
  font-size: var(--font-size-sm);
  color: var(--md-gray-600);
  line-height: 1.7;
}

/* --- Features Section (Bento Grid) --- */
.features {
  padding: var(--section-padding);
  background: var(--md-gray-50);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.bento-card {
  background: var(--md-white);
  border-radius: var(--border-radius-lg);
  padding: 32px;
  border: 1px solid var(--md-gray-200);
  transition: var(--transition);
}

.bento-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.bento-card.bento-lg {
  grid-column: span 2;
}

.bento-card.bento-sm {
  grid-column: span 1;
}

.bento-card.bento-wide {
  grid-column: span 4;
  display: flex;
  align-items: center;
  gap: 24px;
}

.bento-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.bento-icon.pink { background: var(--md-primary-lightest); color: var(--md-primary); }
.bento-icon.yellow { background: var(--md-secondary-lightest); color: var(--md-secondary-dark); }
.bento-icon.purple { background: var(--md-tertiary-lightest); color: var(--md-tertiary); }
.bento-icon.green { background: #E8F5E9; color: var(--md-success); }
.bento-icon.blue { background: #E0F7FA; color: var(--md-info); }

.bento-card h3 {
  font-size: var(--font-size-base);
  font-weight: 700;
  margin-bottom: 8px;
}

.bento-card p {
  font-size: var(--font-size-sm);
  color: var(--md-gray-600);
  line-height: 1.6;
}

.bento-tags {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.feature-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 50px;
}

.feature-tag.tag-whatsapp { background: #E8F5E9; color: #2E7D32; }
.feature-tag.tag-ia { background: var(--md-tertiary-lightest); color: var(--md-tertiary); }
.feature-tag.tag-agentes { background: var(--md-primary-lightest); color: var(--md-primary); }

/* --- Pricing Section (4-col + Enterprise banner) --- */
.pricing {
  padding: var(--section-padding);
  background: var(--md-white);
}

.pricing-grid-new {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card-new {
  background: var(--md-white);
  border-radius: var(--border-radius-lg);
  padding: 32px 24px;
  border: 2px solid var(--md-gray-200);
  transition: var(--transition);
  position: relative;
}

.pricing-card-new:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

/* Enterprise Banner */
.enterprise-banner {
  max-width: 1100px;
  margin: 40px auto 0;
  border-radius: var(--border-radius-lg);
  background: linear-gradient(135deg, var(--md-tertiary) 0%, var(--md-tertiary-dark) 50%, #3A1A38 100%);
  padding: 3px;
  position: relative;
  overflow: hidden;
}

.enterprise-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(232, 69, 124, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.enterprise-banner::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(248, 180, 46, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.enterprise-banner-content {
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, var(--md-tertiary) 0%, var(--md-tertiary-dark) 100%);
  border-radius: calc(var(--border-radius-lg) - 2px);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.enterprise-banner-left {
  flex: 1;
}

.enterprise-banner-badge {
  display: inline-block;
  background: rgba(248, 180, 46, 0.2);
  color: var(--md-secondary);
  padding: 4px 16px;
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  border: 1px solid rgba(248, 180, 46, 0.3);
}

.enterprise-banner-left h3 {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--md-white);
  margin-bottom: 8px;
  line-height: 1.3;
}

.enterprise-banner-left p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
  max-width: 520px;
}

.enterprise-banner-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 20px;
  flex-shrink: 0;
}

.enterprise-features {
  display: flex;
  gap: 20px;
}

.enterprise-features span {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.8);
  font-weight: 600;
  white-space: nowrap;
}

.enterprise-features span i {
  color: var(--md-secondary);
}

.btn-enterprise {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: linear-gradient(135deg, var(--md-secondary) 0%, var(--md-secondary-dark) 100%);
  color: var(--md-white);
  border: none;
  border-radius: 50px;
  font-size: var(--font-size-base);
  font-weight: 700;
  font-family: var(--font-family);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(248, 180, 46, 0.3);
}

.btn-enterprise:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(248, 180, 46, 0.4);
  color: var(--md-white);
}

.pricing-card-new.featured {
  border-color: var(--md-primary);
  box-shadow: 0 8px 32px rgba(232, 69, 124, 0.15);
  transform: scale(1.04);
}

.pricing-card-new.featured:hover {
  transform: scale(1.04) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--md-primary);
  color: var(--md-white);
  padding: 4px 20px;
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.pricing-card-header {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--md-gray-200);
}

.pricing-card-new h3 {
  font-size: var(--font-size-xl);
  font-weight: 800;
  margin-bottom: 4px;
}

.pricing-ideal {
  font-size: var(--font-size-sm);
  color: var(--md-gray-500);
  margin-bottom: 16px;
}

.pricing-price .amount {
  font-size: var(--font-size-3xl);
  font-weight: 900;
  color: var(--md-gray-900);
}

.pricing-price .currency {
  font-size: var(--font-size-base);
  color: var(--md-gray-500);
  font-weight: 600;
}

.pricing-price .period {
  font-size: var(--font-size-sm);
  color: var(--md-gray-500);
}

.pricing-highlights {
  list-style: none;
  margin-bottom: 28px;
}

.pricing-highlights li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: var(--font-size-sm);
  color: var(--md-gray-700);
}

.pricing-highlights li i {
  color: var(--md-success);
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-card-new .btn-primary,
.pricing-card-new .btn-secondary {
  width: 100%;
  justify-content: center;
  padding: 14px 24px;
}

.pricing-note {
  text-align: center;
  margin-top: 40px;
  font-size: var(--font-size-sm);
  color: var(--md-gray-600);
}

.pricing-note a {
  font-weight: 600;
}

/* --- Differentiators Section --- */
.differentiators {
  padding: var(--section-padding);
  background: var(--md-gray-50);
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.diff-card {
  background: var(--md-white);
  border-radius: var(--border-radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--md-gray-200);
  transition: var(--transition);
  text-align: center;
}

.diff-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
  border-color: var(--md-primary-light);
}

.diff-number {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  color: var(--md-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.diff-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--md-gray-900);
}

.diff-card p {
  font-size: var(--font-size-sm);
  color: var(--md-gray-600);
  line-height: 1.7;
}

/* --- Roadmap Section --- */
.roadmap {
  padding: var(--section-padding);
  background: var(--md-white);
}

.roadmap-timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.roadmap-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--md-primary), var(--md-secondary), var(--md-tertiary));
  border-radius: 3px;
}

.roadmap-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 48px;
  position: relative;
}

.roadmap-item:nth-child(odd) {
  flex-direction: row;
}

.roadmap-item:nth-child(even) {
  flex-direction: row-reverse;
}

.roadmap-content {
  width: 45%;
  background: var(--md-white);
  border-radius: var(--border-radius-lg);
  padding: 28px;
  border: 1px solid var(--md-gray-200);
  transition: var(--transition);
}

.roadmap-content:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.roadmap-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--md-primary);
  border: 4px solid var(--md-white);
  box-shadow: 0 0 0 3px var(--md-primary);
  z-index: 2;
}

.roadmap-item:nth-child(2) .roadmap-dot { background: var(--md-secondary); box-shadow: 0 0 0 3px var(--md-secondary); }
.roadmap-item:nth-child(3) .roadmap-dot { background: var(--md-tertiary); box-shadow: 0 0 0 3px var(--md-tertiary); }
.roadmap-item:nth-child(4) .roadmap-dot { background: var(--md-info); box-shadow: 0 0 0 3px var(--md-info); }

.roadmap-content .roadmap-phase {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--md-primary);
  margin-bottom: 8px;
}

.roadmap-item:nth-child(2) .roadmap-phase { color: var(--md-secondary-dark); }
.roadmap-item:nth-child(3) .roadmap-phase { color: var(--md-tertiary); }
.roadmap-item:nth-child(4) .roadmap-phase { color: var(--md-info); }

.roadmap-content h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: 12px;
}

.roadmap-content ul {
  list-style: none;
  padding: 0;
}

.roadmap-content ul li {
  padding: 4px 0;
  font-size: var(--font-size-sm);
  color: var(--md-gray-600);
  display: flex;
  align-items: center;
  gap: 8px;
}

.roadmap-content ul li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--md-gray-400);
  flex-shrink: 0;
}

.roadmap-item.active .roadmap-content ul li::before {
  background: var(--md-primary);
}

/* --- Tech Stack Section --- */
.tech-stack {
  padding: 80px 0;
  background: var(--md-gray-900);
  color: var(--md-white);
  text-align: center;
}

.tech-stack .section-title {
  color: var(--md-white);
}

.tech-stack .section-subtitle {
  color: var(--md-gray-400);
}

.tech-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 40px;
}

.tech-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.08);
  padding: 14px 24px;
  border-radius: 50px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.tech-badge:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

/* --- Footer --- */
.footer {
  padding: 60px 0 32px;
  background: var(--md-gray-900);
  color: var(--md-gray-400);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand img {
  width: 250px;
  height: auto !important;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: var(--font-size-sm);
  line-height: 1.7;
  max-width: 320px;
}

.footer h4 {
  color: var(--md-white);
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--md-gray-400);
  font-size: var(--font-size-sm);
  transition: var(--transition);
}

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

.footer-subscribe {
  margin-top: 16px;
}

.footer-subscribe .subscribe-form {
  max-width: 100%;
}

.footer-subscribe .subscribe-form input {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--md-white);
}

.footer-subscribe .subscribe-form input::placeholder {
  color: var(--md-gray-500);
}

.footer-subscribe .subscribe-form input:focus {
  border-color: var(--md-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--font-size-xs);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--md-gray-500);
  font-size: var(--font-size-xs);
}

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

/* --- Live Pulse Animation --- */
@keyframes pulse-live {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(40,199,111,0.6); }
  50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(40,199,111,0); }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-left {
    text-align: center;
  }

  .hero-description {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  .hero .subscribe-form {
    max-width: 480px;
    margin: 0 auto;
  }

  .hero .subscribe-feedback {
    text-align: center;
  }

  .social-proof {
    justify-content: center;
  }

  .hero-right {
    max-width: 560px;
    margin: 0 auto;
  }

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

  .bento-card.bento-lg {
    grid-column: span 2;
  }

  .bento-card.bento-wide {
    grid-column: span 2;
  }

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

  .pricing-grid-new {
    grid-template-columns: repeat(2, 1fr);
    max-width: 100%;
  }

  .enterprise-banner-content {
    flex-direction: column;
    text-align: center;
    padding: 32px;
  }

  .enterprise-banner-right {
    align-items: center;
  }

  .enterprise-banner-left p {
    max-width: 100%;
  }

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

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --section-padding: 60px 0;
  }

  .navbar-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--md-white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  }

  .navbar-links.active {
    display: flex;
  }

  .navbar-toggle {
    display: block;
  }

  .hero {
    padding: 100px 24px 40px;
    min-height: auto;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .mockup-sidebar {
    display: none;
  }

  .countdown {
    gap: 8px;
  }

  .countdown-item {
    min-width: 70px;
    padding: 14px 10px;
  }

  .countdown-number {
    font-size: var(--font-size-2xl);
  }

  .subscribe-form {
    flex-direction: column;
  }

  .subscribe-form input,
  .btn-primary {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

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

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

  .bento-card.bento-lg,
  .bento-card.bento-wide {
    grid-column: span 1;
  }

  .bento-card.bento-wide {
    flex-direction: column;
    text-align: center;
  }

  .pricing-grid-new {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .pricing-card-new.featured {
    transform: scale(1);
  }

  .pricing-card-new.featured:hover {
    transform: translateY(-4px);
  }

  .enterprise-banner-content {
    flex-direction: column;
    text-align: center;
    padding: 28px 20px;
    gap: 24px;
  }

  .enterprise-banner-right {
    align-items: center;
  }

  .enterprise-features {
    flex-direction: column;
    gap: 8px;
    align-items: center;
  }

  .enterprise-banner-left h3 {
    font-size: var(--font-size-xl);
  }

  .diff-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  /* Roadmap responsive */
  .roadmap-timeline::before {
    left: 20px;
  }

  .roadmap-item,
  .roadmap-item:nth-child(even) {
    flex-direction: row;
    padding-left: 52px;
  }

  .roadmap-content {
    width: 100%;
  }

  .roadmap-dot {
    left: 20px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .countdown-item {
    min-width: 60px;
    padding: 12px 8px;
  }

  .countdown-number {
    font-size: var(--font-size-xl);
  }
}

/* --- Enterprise Buttons --- */
.enterprise-buttons {
  display: flex;
  gap: 12px;
}

.btn-whatsapp-enterprise {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  background: #25D366;
  color: var(--md-white);
  border: none;
  border-radius: 50px;
  font-size: var(--font-size-base);
  font-weight: 700;
  font-family: var(--font-family);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp-enterprise:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
  color: var(--md-white);
  background: #20BD5A;
}

/* --- Contact Modal --- */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.active {
  display: flex;
}

.modal-container {
  background: var(--md-white);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  max-width: 580px;
  width: 100%;
  position: relative;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.2);
  animation: modalSlideIn 0.3s ease-out;
  max-height: 90vh;
  overflow-y: auto;
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--md-gray-100);
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--md-gray-600);
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--md-gray-200);
  color: var(--md-gray-900);
}

.modal-header {
  margin-bottom: 28px;
}

.modal-header h3 {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  margin-bottom: 8px;
}

.modal-header p {
  font-size: var(--font-size-sm);
  color: var(--md-gray-600);
  line-height: 1.6;
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.contact-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact-form .form-group:not(.form-row .form-group) {
  margin-bottom: 16px;
}

.contact-form label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--md-gray-800);
}

.contact-form label .optional {
  font-weight: 400;
  color: var(--md-gray-400);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  padding: 12px 16px;
  border: 2px solid var(--md-gray-200);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  outline: none;
  transition: var(--transition);
  background: var(--md-white);
  color: var(--md-gray-900);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 4px rgba(232, 69, 124, 0.1);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--md-gray-400);
}

.contact-form textarea {
  resize: vertical;
  min-height: 80px;
}

.form-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 8px;
}

.form-actions .btn-primary {
  flex: 1;
}

.btn-whatsapp-alt {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 24px;
  background: #25D366;
  color: var(--md-white);
  border: none;
  border-radius: 50px;
  font-size: var(--font-size-sm);
  font-weight: 700;
  font-family: var(--font-family);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-whatsapp-alt:hover {
  background: #20BD5A;
  color: var(--md-white);
  transform: translateY(-2px);
}

.contact-feedback {
  margin-top: 16px;
  font-size: var(--font-size-sm);
  min-height: 20px;
  text-align: center;
}

.contact-feedback.success {
  color: var(--md-success);
}

.contact-feedback.error {
  color: #FF4C51;
}

/* Modal responsive */
@media (max-width: 768px) {
  .modal-container {
    padding: 28px 20px;
    margin: 16px;
  }

  .contact-form .form-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form-actions {
    flex-direction: column;
  }

  .form-actions .btn-primary,
  .btn-whatsapp-alt {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .enterprise-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn-enterprise,
  .btn-whatsapp-enterprise {
    justify-content: center;
  }
}

/* --- Loading Animation --- */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--md-white);
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- Smooth scroll offset for fixed nav --- */
section[id] {
  scroll-margin-top: 80px;
}