/* ==========================================================================
   Duro Shine Solar - UI/UX Pro Max Design System
   Theme: Playful, Friendly, Modern, Energetic Dark Solar Aesthetics
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  /* Brand Palette - Sunny, Energetic & Modern */
  --bg-primary: #070B12;
  --bg-secondary: #0F172A;
  --bg-tertiary: #1E293B;
  
  --solar-gold: #FFB800;
  --solar-gold-glow: rgba(255, 184, 0, 0.25);
  --solar-amber: #F59E0B;
  --solar-emerald: #10B981;
  --solar-emerald-glow: rgba(16, 185, 129, 0.25);
  --solar-cyan: #06B6D4;
  --solar-cyan-glow: rgba(6, 182, 212, 0.2);

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  /* Glassmorphism System */
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-bg-hover: rgba(255, 255, 255, 0.07);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-border-gold: rgba(255, 184, 0, 0.3);
  --glass-blur: blur(16px);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

  /* Typography */
  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* UI Tokens */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background Animated Gradient Mesh */
.bg-mesh {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: 
    radial-gradient(circle at 15% 20%, rgba(255, 184, 0, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(16, 185, 129, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

.text-gradient-gold {
  background: linear-gradient(135deg, #FFE893 0%, var(--solar-gold) 50%, var(--solar-amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-emerald {
  background: linear-gradient(135deg, #A7F3D0 0%, var(--solar-emerald) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mono-metric {
  font-family: var(--font-mono);
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-bounce);
  min-height: 48px; /* Accessible Touch Target */
  position: relative;
  overflow: hidden;
  touch-action: manipulation;
}

.btn-primary {
  background: linear-gradient(135deg, var(--solar-gold) 0%, var(--solar-amber) 100%);
  color: #070B12;
  box-shadow: 0 4px 20px var(--solar-gold-glow);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(255, 184, 0, 0.45);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border-color: var(--glass-border);
  backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
  background: var(--glass-bg-hover);
  border-color: var(--solar-gold);
  color: var(--solar-gold);
  transform: translateY(-2px);
}

.btn-emerald {
  background: linear-gradient(135deg, #10B981 0%, #059669 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 20px var(--solar-emerald-glow);
}

.btn-emerald:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.45);
}

/* Glass Card */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.glass-card.gold-glow:hover {
  border-color: var(--glass-border-gold);
  box-shadow: 0 12px 40px rgba(255, 184, 0, 0.15);
}

/* Header & Navbar */
.header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: all var(--transition-normal);
  padding: 1.25rem 0;
}

.header.scrolled {
  background: rgba(7, 11, 18, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 0.85rem 0;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

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

.nav-link:hover, .nav-link.active {
  color: var(--solar-gold);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.phone-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.03);
}

.phone-badge:hover {
  color: var(--solar-gold);
}

/* Mobile Nav Toggle & Mobile Menu Drawer */
.mobile-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1.25rem;
  width: 44px;
  height: 44px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* Hero Section */
.hero-section {
  padding: 4rem 0 6rem 0;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  background: rgba(255, 184, 0, 0.1);
  border: 1px solid rgba(255, 184, 0, 0.3);
  color: var(--solar-gold);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  animation: pulseGlow 3s infinite ease-in-out;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 10px rgba(255, 184, 0, 0.1); }
  50% { box-shadow: 0 0 20px rgba(255, 184, 0, 0.3); }
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 540px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-border);
}

.stat-item h4 {
  font-size: 1.8rem;
  color: var(--solar-gold);
  margin-bottom: 0.2rem;
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* Hero Visual Showcase */
.hero-visual {
  position: relative;
}

.hero-img-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border-gold);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.hero-img-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.hero-img-wrapper:hover img {
  transform: scale(1.03);
}

/* Floating Solar Energy Pill */
.floating-pill {
  position: absolute;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border-gold);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  animation: floatAnim 4s ease-in-out infinite;
}

.floating-pill.pill-top {
  top: -20px;
  right: -20px;
}

.floating-pill.pill-bottom {
  bottom: -20px;
  left: -20px;
  animation-delay: -2s;
}

@keyframes floatAnim {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.pill-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--solar-gold-glow);
  color: var(--solar-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.pill-text span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.pill-text strong {
  font-size: 1rem;
  font-family: var(--font-mono);
  color: var(--solar-gold);
}

/* Section Header styling */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-block;
  color: var(--solar-emerald);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  padding: 0.35rem 1rem;
  background: var(--solar-emerald-glow);
  border-radius: var(--radius-full);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* Solar Savings Calculator Section */
.calculator-section {
  padding: 6rem 0;
  position: relative;
}

.calc-card {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.8) 0%, rgba(7, 11, 18, 0.95) 100%);
  border: 1px solid var(--glass-border-gold);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
}

.calc-controls {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-label {
  font-weight: 600;
  color: var(--text-primary);
}

.slider-value {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--solar-gold);
  background: rgba(255, 184, 0, 0.1);
  padding: 0.2rem 0.8rem;
  border-radius: var(--radius-sm);
}

/* Custom Range Input */
.custom-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  outline: none;
  transition: background 0.2s ease;
  touch-action: manipulation;
}

.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--solar-gold);
  cursor: pointer;
  box-shadow: 0 0 15px var(--solar-gold-glow);
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.custom-range::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  background: #FFF;
}

/* Calculator Output Results Panel */
.calc-results {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.primary-result-box {
  background: linear-gradient(135deg, rgba(255, 184, 0, 0.15) 0%, rgba(245, 158, 11, 0.05) 100%);
  border: 1px solid var(--glass-border-gold);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
}

.primary-result-box span {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.primary-result-box h3 {
  font-size: 2.8rem;
  color: var(--solar-gold);
  margin: 0.3rem 0;
  font-family: var(--font-mono);
}

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

.metric-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.metric-card span {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: block;
}

.metric-card strong {
  font-size: 1.2rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* Interactive Solar Simulator Section */
.simulator-section {
  padding: 6rem 0;
}

.sim-container {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.sim-controls-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--glass-border);
}

.time-toggle-group {
  display: flex;
  background: var(--bg-primary);
  padding: 0.3rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--glass-border);
}

.time-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-normal);
}

.time-btn.active {
  background: var(--solar-gold);
  color: #070B12;
}

/* Dynamic Energy Diagram Visualizer */
.energy-visual-canvas {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.energy-node {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  transition: all 0.4s ease;
  position: relative;
}

.energy-node.active {
  border-color: var(--solar-gold);
  box-shadow: 0 0 25px var(--solar-gold-glow);
}

.node-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem auto;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--solar-gold);
  transition: transform 0.3s ease;
}

.energy-node.active .node-icon {
  transform: scale(1.1);
  background: var(--solar-gold-glow);
}

.node-title {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.node-status {
  font-size: 0.85rem;
  color: var(--solar-emerald);
  font-family: var(--font-mono);
}

/* Playful Installation Steps */
.steps-section {
  padding: 6rem 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.step-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  position: relative;
  transition: all var(--transition-bounce);
}

.step-card:hover {
  transform: translateY(-8px);
  border-color: var(--solar-gold);
  background: var(--glass-bg-hover);
}

.step-num {
  position: absolute;
  top: -15px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--solar-gold), var(--solar-amber));
  color: #070B12;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.1rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px var(--solar-gold-glow);
}

.step-emoji {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.step-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Pricing & Packages */
.packages-section {
  padding: 6rem 0;
}

.packages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.package-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.package-card.popular {
  border-color: var(--solar-gold);
  background: linear-gradient(180deg, rgba(255, 184, 0, 0.08) 0%, rgba(15, 23, 42, 0.6) 100%);
}

.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--solar-gold);
  color: #070B12;
  font-weight: 800;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 1.2rem;
  border-radius: var(--radius-full);
}

.package-header {
  margin-bottom: 1.5rem;
  text-align: center;
}

.package-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.package-price {
  font-size: 2.2rem;
  color: var(--solar-gold);
  font-family: var(--font-mono);
  margin-bottom: 0.2rem;
}

.package-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.package-features {
  list-style: none;
  margin: 1.5rem 0 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.package-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.package-features i {
  color: var(--solar-emerald);
}

/* Booking Modal Multi-Step Wizard */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 1rem;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border-gold);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 50px rgba(0,0,0,0.8);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-backdrop.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 10;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #FFF;
}

/* Wizard Steps Indicators */
.wizard-progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  position: relative;
}

.wizard-progress::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--bg-tertiary);
  z-index: 1;
  transform: translateY(-50%);
}

.progress-step {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  z-index: 2;
  transition: all 0.3s ease;
}

.progress-step.active {
  background: var(--solar-gold);
  color: #070B12;
  box-shadow: 0 0 15px var(--solar-gold-glow);
}

.progress-step.completed {
  background: var(--solar-emerald);
  color: #FFF;
}

.wizard-step-content {
  display: none;
}

.wizard-step-content.active {
  display: block;
  animation: fadeInStep 0.3s ease;
}

@keyframes fadeInStep {
  from { opacity: 0; transform: translateX(10px); }
  to { opacity: 1; transform: translateX(0); }
}

.wizard-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.wizard-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
}

.option-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.option-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.option-card:hover, .option-card.selected {
  border-color: var(--solar-gold);
  background: rgba(255, 184, 0, 0.08);
}

.option-card.selected {
  box-shadow: 0 0 15px var(--solar-gold-glow);
}

.option-icon {
  font-size: 1.5rem;
}

.option-card strong {
  font-size: 1rem;
  color: var(--text-primary);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.form-input:focus {
  border-color: var(--solar-gold);
  box-shadow: 0 0 10px var(--solar-gold-glow);
}

.wizard-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--glass-border);
}

/* FAQ Accordion */
.faq-section {
  padding: 6rem 0;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-question {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1rem;
}

.faq-answer {
  padding: 0 1.5rem 1.5rem 1.5rem;
  color: var(--text-secondary);
  display: none;
  font-size: 0.95rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--solar-gold);
}

/* Footer */
.footer {
  background: #04070D;
  border-top: 1px solid var(--glass-border);
  padding: 4rem 0 2rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 1rem 0;
}

.footer-title {
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  color: var(--solar-gold);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--solar-gold);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 90vw;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--solar-emerald);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: toastIn 0.3s ease;
}

@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ==========================================================================
   Responsive Breakpoints - Fully Tailored for Phone, Tablet & Laptop
   ========================================================================== */

/* Laptop / Medium Desktop (max-width: 1024px) */
@media (max-width: 1024px) {
  .hero-grid, .calc-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .hero-title {
    font-size: 2.8rem;
  }

  .energy-visual-canvas, .steps-grid, .packages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* Tablet & Mobile Phone (max-width: 768px) */
@media (max-width: 768px) {
  /* Navigation Mobile Drawer */
  .mobile-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(7, 11, 18, 0.98);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-bottom: 1px solid var(--glass-border-gold);
    padding: 2rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.8);
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.35s ease;
    z-index: 99;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    font-size: 1.1rem;
    display: block;
    width: 100%;
    padding: 0.4rem 0;
  }

  .phone-badge {
    display: none;
  }

  /* Hero Section Mobile */
  .hero-section {
    padding: 2.5rem 0 4rem 0;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-stats {
    gap: 1.2rem;
  }

  .stat-item h4 {
    font-size: 1.4rem;
  }

  .floating-pill.pill-top {
    top: 10px;
    right: 10px;
    padding: 0.6rem 0.8rem;
  }

  .floating-pill.pill-bottom {
    bottom: 10px;
    left: 10px;
    padding: 0.6rem 0.8rem;
  }

  /* Section Header Mobile */
  .section-title {
    font-size: 1.85rem;
  }

  .section-desc {
    font-size: 1rem;
  }

  /* Calculator Mobile */
  .calc-card {
    padding: 1.5rem;
  }

  .primary-result-box h3 {
    font-size: 2.1rem;
  }

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

  /* Simulator & Grids Mobile */
  .sim-container {
    padding: 1.5rem;
  }

  .sim-controls-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .energy-visual-canvas, .steps-grid, .packages-grid {
    grid-template-columns: 1fr;
  }

  .package-card.popular {
    transform: none;
  }

  /* Modal Wizard Mobile */
  .modal-card {
    padding: 1.5rem;
    border-radius: var(--radius-md);
  }

  .option-cards-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* Small Smartphone (max-width: 480px) */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }
  
  .hero-cta-group {
    flex-direction: column;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .calc-controls {
    gap: 1.5rem;
  }
}