@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

:root {
  color-scheme: light;
  --sd-color-background: #e8f0ff;
  --sd-color-surface: hsla(0, 0%, 100%, 0.85);
  --sd-color-surface-muted: rgba(240, 246, 255, 0.92);
  --sd-color-border: rgba(148, 163, 184, 0.28);
  --sd-color-text-primary: #0f172a;
  --sd-color-text-secondary: #475569;
  --sd-color-text-muted: #94a3b8;
  --sd-color-success: #22c55e;
  --sd-color-warning: #f59e0b;
  --sd-color-danger: #ef4444;
  --sd-color-info: #2563eb;
  --sd-color-offline: #b45309;
  --sd-shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.06);
  --sd-shadow-md: 0 14px 34px rgba(15, 23, 42, 0.09);
  --sd-shadow-lg: 0 24px 56px rgba(15, 23, 42, 0.14);
  
  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-heading: 'Space Grotesk', 'IBM Plex Sans', sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  color: var(--sd-color-text-primary);
  background-color: var(--sd-color-background);
  background-image: 
    radial-gradient(1000px 700px at 15% 0%, rgba(223, 240, 255, 0.8) 0%, transparent 60%),
    radial-gradient(900px 600px at 85% 15%, rgba(231, 251, 244, 0.8) 0%, transparent 60%),
    radial-gradient(800px 500px at 50% 85%, rgba(232, 240, 255, 0.5) 0%, transparent 60%);
  background-attachment: fixed;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Grid & Layout Utilities */
.wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  color: var(--sd-color-text-primary);
  margin-bottom: 20px;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 2.5rem);
  margin-bottom: 16px;
  text-align: center;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

p {
  font-size: 1.05rem;
  color: var(--sd-color-text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

/* Glassmorphism Panel */
.panel {
  background-color: var(--sd-color-surface);
  border: 1px solid var(--sd-color-border);
  box-shadow: var(--sd-shadow-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 24px;
  padding: 32px;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.panel:hover {
  box-shadow: var(--sd-shadow-lg);
}

.card-muted {
  background-color: var(--sd-color-surface-muted);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  padding: 24px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 9999px;
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-success, .badge-online {
  background: rgba(34, 197, 94, 0.14);
  color: #15803d;
}

.badge-warning {
  background: rgba(245, 158, 11, 0.14);
  color: #b45309;
}

.badge-danger {
  background: rgba(239, 68, 68, 0.14);
  color: #b91c1c;
}

.badge-info {
  background: rgba(37, 99, 235, 0.12);
  color: #1d4ed8;
}

.badge-offline {
  background: rgba(180, 83, 9, 0.14);
  color: #92400e;
}

.badge-muted {
  background: rgba(148, 163, 184, 0.16);
  color: #475569;
}

/* Buttons */
.button-base {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
  gap: 8px;
}

.button-base:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.button-primary {
  background-image: linear-gradient(135deg, #0ea5e9, #2563eb);
  color: #ffffff;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}

.button-primary:hover {
  background-image: linear-gradient(135deg, #38bdf8, #3b82f6);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.3);
}

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

.button-secondary {
  border: 1px solid rgba(148, 163, 184, 0.5);
  background-color: hsla(0, 0%, 100%, 0.8);
  color: var(--sd-color-text-primary);
}

.button-secondary:hover {
  background-color: #ffffff;
  border-color: rgba(148, 163, 184, 0.8);
  transform: translateY(-2px);
  box-shadow: var(--sd-shadow-sm);
}

.button-secondary:active {
  transform: translateY(0);
}

.button-ghost {
  background-color: transparent;
  color: var(--sd-color-text-secondary);
}

.button-ghost:hover {
  background-color: rgba(37, 99, 235, 0.08);
  color: var(--sd-color-text-primary);
}

.button-danger {
  background-color: var(--sd-color-danger);
  color: #ffffff;
  box-shadow: 0 8px 16px rgba(239, 68, 68, 0.2);
}

.button-danger:hover {
  background-color: #f43f5e;
  transform: translateY(-2px);
  box-shadow: 0 12px 20px rgba(239, 68, 68, 0.3);
}

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(232, 240, 255, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--sd-color-border);
  transition: background-color var(--transition-fast);
}

.header-scrolled {
  background-color: rgba(255, 255, 255, 0.85);
  box-shadow: var(--sd-shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--sd-color-text-primary);
}

.nav-logo img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
  background-color: #fff;
  padding: 2px;
  box-shadow: var(--sd-shadow-sm);
}

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

.nav-link {
  text-decoration: none;
  color: var(--sd-color-text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--sd-color-text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--sd-color-info);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--sd-color-text-primary);
}

/* Hero Section */
.hero {
  padding: 120px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.hero-content h1 span {
  background: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-text {
  font-size: 1.15rem;
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
}

.hero-card {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: 16px;
  box-shadow: var(--sd-shadow-lg);
  aspect-ratio: 1.2;
  background: var(--sd-color-surface);
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
}

.hero-badge-overlay {
  position: absolute;
  bottom: 32px;
  left: 32px;
  right: 32px;
  padding: 20px;
  border-radius: 20px;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-badge-icon {
  background-image: linear-gradient(135deg, #22c55e, #10b981);
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.4);
}

.hero-badge-icon svg {
  width: 24px;
  height: 24px;
  color: #fff;
}

.hero-badge-text h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.hero-badge-text p {
  font-size: 0.8rem;
  color: #cbd5e1;
  margin-bottom: 0;
}

/* Architecture Section */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.arch-card {
  text-align: center;
  position: relative;
}

.arch-step {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background-image: linear-gradient(135deg, #0ea5e9, #2563eb);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
  font-family: var(--font-heading);
}

.arch-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background-image: linear-gradient(135deg, rgba(14, 165, 233, 0.08), rgba(37, 99, 235, 0.08));
  border: 1px solid rgba(37, 99, 235, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 12px auto 24px;
  color: #2563eb;
}

.arch-icon svg {
  width: 32px;
  height: 32px;
}

/* Simulator Section */
.sim-grid {
  display: block;
  margin: 48px auto 0;
}

.sim-dashboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 1024px) {
  .sim-dashboard {
    grid-template-columns: 1fr;
  }
}

.sim-widget {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px;
}

/* Circular Water Tank Visualizer */
.tank-visualizer {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid rgba(37, 99, 235, 0.3);
  background-color: #f1f5f9;
  overflow: hidden;
  box-shadow: inset 0 4px 10px rgba(0, 0, 0, 0.08);
  flex-shrink: 0;
}

.tank-water {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 70%; /* Updated by JS */
  background: linear-gradient(180deg, #38bdf8 0%, #0284c7 100%);
  transition: height 0.8s ease-in-out;
}

/* Water wave SVG background overlay */
.tank-water::after {
  content: '';
  position: absolute;
  top: -10px;
  left: 0;
  width: 200%;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 28'%3E%3Cpath fill='%2338bdf8' d='M0 15 Q 30 0, 60 15 T 120 15 L 120 28 L 0 28 Z'/%3E%3C/svg%3E");
  background-repeat: repeat-x;
  background-size: 50% 100%;
  animation: wave-animation 3s linear infinite;
}

@keyframes wave-animation {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.tank-percentage {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--sd-color-text-primary);
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
  z-index: 2;
}

/* Animated Pump Icon */
.pump-visualizer {
  width: 80px;
  height: 80px;
  border-radius: 16px;
  background: var(--sd-color-surface-muted);
  border: 1px solid var(--sd-color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.pump-fan {
  color: #94a3b8;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pump-fan svg {
  width: 36px;
  height: 36px;
}

.pump-active .pump-fan {
  color: #3b82f6;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}

.pump-flow-indicator {
  position: absolute;
  bottom: 6px;
  display: flex;
  gap: 3px;
}

.pump-flow-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: #e2e8f0;
}

.pump-active .pump-flow-dot {
  background-color: #3b82f6;
  animation: pulse-dot 0.6s infinite alternate;
}

.pump-active .pump-flow-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.pump-active .pump-flow-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes pulse-dot {
  0% { opacity: 0.3; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1.2); }
}

/* Bebedero Visualizer */
.bebedero-visualizer {
  width: 80px;
  height: 80px;
  border-radius: 16px;
  background: var(--sd-color-surface-muted);
  border: 1px solid var(--sd-color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6px;
  flex-shrink: 0;
}

.bebedero-trough {
  width: 50px;
  height: 26px;
  border: 2px solid #64748b;
  border-radius: 4px 4px 10px 10px;
  position: relative;
  overflow: hidden;
  background: #cbd5e1;
  margin-top: 4px;
}

.bebedero-water {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80%; /* Updated by JS */
  background: #38bdf8;
  transition: height 0.6s ease-in-out;
}

/* Widget Data */
.widget-info {
  display: flex;
  flex-direction: column;
}

.widget-title-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.widget-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
}

.widget-data {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.widget-metric {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 0.72rem;
  color: var(--sd-color-text-muted);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 2px;
}

.metric-val {
  font-size: 1.15rem;
  font-weight: 700;
  font-family: var(--font-heading);
}

/* MQTT Terminal Console removed */

.sim-controls {
  margin-top: 32px;
  border-top: 1px solid var(--sd-color-border);
  padding-top: 24px;
}

.sim-controls-title {
  font-size: 0.95rem;
  color: var(--sd-color-text-secondary);
  font-weight: 600;
  margin-bottom: 16px;
  text-align: center;
}

.sim-btn-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Use Cases Sections */
.tabs-container {
  margin-top: 48px;
}

.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--sd-color-border);
  padding-bottom: 16px;
}

.tab-btn {
  background: none;
  border: none;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--sd-color-text-secondary);
  cursor: pointer;
  padding: 8px 16px;
  transition: all var(--transition-fast);
  border-radius: 12px;
}

.tab-btn:hover {
  color: var(--sd-color-text-primary);
  background-color: rgba(37, 99, 235, 0.05);
}

.tab-btn-active {
  color: #2563eb;
  background-color: rgba(37, 99, 235, 0.08);
}

.tab-content {
  display: none;
}

.tab-content-active {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  animation: fade-in-tab 0.4s ease-out;
}

@keyframes fade-in-tab {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.case-card {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.case-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: rgba(37, 99, 235, 0.08);
  color: #2563eb;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.case-icon svg {
  width: 24px;
  height: 24px;
}

/* Benefits Section */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.benefit-card {
  height: 100%;
}

.benefit-icon {
  color: var(--sd-color-success);
  margin-bottom: 16px;
}

.benefit-icon svg {
  width: 36px;
  height: 36px;
}

/* Contact Form Section */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  margin-top: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.info-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background-color: rgba(37, 99, 235, 0.08);
  color: #2563eb;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-icon svg {
  width: 20px;
  height: 20px;
}

.info-text h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.info-text p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sd-color-text-secondary);
}

.form-input {
  background-color: hsla(0, 0%, 100%, 0.7);
  border: 1px solid var(--sd-color-border);
  border-radius: 12px;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--sd-color-text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: #3b82f6;
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-input::placeholder {
  color: var(--sd-color-text-muted);
}

textarea.form-input {
  min-height: 120px;
  resize: vertical;
}

/* Footer Section */
.footer {
  background-color: #0f172a;
  color: #f8fafc;
  padding: 64px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: #ffffff;
}

.footer-logo img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
  background-color: #fff;
  padding: 2px;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 0.95rem;
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  text-decoration: none;
  color: #94a3b8;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: #64748b;
  margin-bottom: 0;
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.social-link {
  color: #64748b;
  transition: color var(--transition-fast);
}

.social-link:hover {
  color: #ffffff;
}

/* Floating WhatsApp Widgets */
.wa-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 16px 30px rgba(37, 211, 102, 0.4);
  text-decoration: none;
  z-index: 90;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.wa-float:hover {
  transform: scale(1.1);
  box-shadow: 0 20px 40px rgba(37, 211, 102, 0.5);
}

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

.wa-label {
  position: fixed;
  right: 90px;
  bottom: 32px;
  background: #0f1b2d;
  color: #fff;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 12px 24px rgba(15, 27, 45, 0.2);
  z-index: 90;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.wa-label:hover {
  background: #1e3a5f;
  transform: translateY(-2px);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .hero-visual {
    max-width: 500px;
    margin: 0 auto;
  }
  
  /* Centered block sim-grid */
  
  .contact-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 40px 24px;
    gap: 28px;
    transition: left var(--transition-normal);
    box-shadow: var(--sd-shadow-lg);
    z-index: 99;
  }
  
  .nav-menu-active {
    left: 0;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .arch-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .wa-label {
    display: none;
  }
}