:root {
  /* Navy + Amber Professional Palette */
  --primary: #1B2A4A;
  --primary-dark: #111D35;
  --primary-light: #e8edf4;
  --primary-glow: rgba(27, 42, 74, 0.12);
  --accent: #F5A623;
  --accent-dark: #D4891A;
  --accent-light: #FFF3DC;
  --warm: #F5A623;
  --warm-light: #FFF3DC;
  --coral: #FF6B35;
  --coral-light: #FFF0E8;

  /* Neutral System */
  --bg: #F4F6F9;
  --bg-alt: #ffffff;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  --txt: #1B2A4A;
  --txt-secondary: #5A6377;
  --txt-muted: #9CA3AF;
  --border: #DCE1E8;
  --border-strong: #B8C0CC;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(27, 42, 74, 0.03);
  --shadow-sm: 0 1px 3px rgba(27, 42, 74, 0.06), 0 1px 2px rgba(27, 42, 74, 0.04);
  --shadow-md: 0 4px 12px rgba(27, 42, 74, 0.05), 0 2px 4px rgba(27, 42, 74, 0.03);
  --shadow-lg: 0 12px 28px rgba(27, 42, 74, 0.06), 0 4px 8px rgba(27, 42, 74, 0.04);
  --shadow-xl: 0 20px 40px rgba(27, 42, 74, 0.07), 0 8px 16px rgba(27, 42, 74, 0.05);
  --shadow-glow: 0 0 0 3px rgba(245, 166, 35, 0.15);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index */
  --z-sticky: 100;
  --z-modal: 200;
  --z-toast: 300;
}

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

html, body {
  height: 100%;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--txt);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--accent);
  color: var(--primary-dark);
}

:focus-visible {
  outline: none;
  ring: 0 0 0 3px var(--shadow-glow);
  border-radius: var(--radius-sm);
}

/* ============ HEADER & BRANDING ============ */
.header {
  background: linear-gradient(135deg, #111D35 0%, #1B2A4A 50%, #243656 100%);
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  border-bottom: 1px solid rgba(245,166,35,0.15);
}

.header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(245, 166, 35, 0.06), transparent 60%);
  pointer-events: none;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  position: relative;
  z-index: 1;
}

.logo-img {
  height: 56px;
  width: auto;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2));
  transition: transform var(--transition-base);
}

.logo-img:hover {
  transform: scale(1.02);
}

.brand-text {
  color: #fff;
}

.brand-text .brand-name {
  font-size: 20px;
  font-weight: 800;
  font-family: 'Sora', sans-serif;
  letter-spacing: -0.02em;
  line-height: 1.1;
  background: linear-gradient(135deg, #FFFFFF 0%, #F5A623 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-text .brand-subtitle {
  font-size: 12px;
  color: rgba(255,255,255,0.8);
  margin-top: 4px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.lang-toggle {
  display: flex;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.lang-btn {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
}

.lang-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 4px 14px rgba(245, 166, 35, 0.3);
}

.lang-btn:hover:not(.active) {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.35);
  transform: translateY(-1px);
}

/* ============ HERO SECTION ============ */
.hero {
  background: linear-gradient(135deg, #111D35 0%, #1B2A4A 50%, #243656 100%);
  padding: 56px 24px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 30%, rgba(245, 166, 35, 0.08), transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(245, 166, 35, 0.05), transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--bg), transparent);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(28px, 5.5vw, 44px);
  font-weight: 800;
  font-family: 'Sora', sans-serif;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
  line-height: 1.15;
  text-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.hero h1 span {
  color: var(--accent);
  background: linear-gradient(135deg, var(--accent) 0%, #FFD080 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  color: rgba(255,255,255,0.85);
  font-size: clamp(15px, 2.2vw, 18px);
  max-width: 580px;
  margin: 0 auto 32px;
  line-height: 1.7;
  font-weight: 400;
}

.hero-trust {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.8);
  font-size: 13px;
  font-weight: 500;
  background: rgba(255,255,255,0.08);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(4px);
}

.trust-icon {
  font-size: 16px;
}

/* ============ SERVICE PILLARS SECTION ============ */
.pillars-section {
  padding: 48px 24px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.pillars-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 0 0 var(--radius-full) var(--radius-full);
}

.pillars-section h2 {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  font-family: 'Sora', sans-serif;
  color: var(--txt);
  text-align: center;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.pillars-section > .section-subtitle {
  text-align: center;
  color: var(--txt-secondary);
  font-size: 15px;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}

.pillar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--card-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

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

.pillar-card:hover::before {
  transform: scaleX(1);
}

.pillar-card.epc { --card-accent: var(--primary); }
.pillar-card.om { --card-accent: var(--accent); }
.pillar-card.ppa { --card-accent: var(--coral); }

.pillar-icon {
  font-size: 40px;
  margin-bottom: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  background: var(--card-accent-bg);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.pillar-card.epc { --card-accent-bg: var(--primary-light); }
.pillar-card.om { --card-accent-bg: var(--accent-light); }
.pillar-card.ppa { --card-accent-bg: var(--coral-light); }

.pillar-card:hover .pillar-icon {
  transform: scale(1.1) rotate(3deg);
}

.pillar-card h3 {
  font-size: 16px;
  font-weight: 700;
  font-family: 'Sora', sans-serif;
  color: var(--txt);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.pillar-card p {
  font-size: 14px;
  color: var(--txt-secondary);
  line-height: 1.6;
  font-weight: 400;
}

/* ============ OUR REGISTERED MEMBERS ============ */
.members-section {
  padding: 48px 24px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.members-section h2 {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  font-family: 'Sora', sans-serif;
  color: var(--txt);
  text-align: center;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.members-section > .section-subtitle {
  text-align: center;
  color: var(--txt-secondary);
  font-size: 14px;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}

.member-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition-base);
}

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

.member-logo {
  font-size: 32px;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: var(--primary-light);
  border-radius: var(--radius-md);
}

.member-name {
  font-size: 15px;
  font-weight: 700;
  font-family: 'Sora', sans-serif;
  color: var(--txt);
  margin-bottom: 6px;
}

.member-expertise {
  font-size: 13px;
  color: var(--txt-secondary);
}

/* ============ PROGRESS & STEPS ============ */
.progress-section {
  max-width: 700px;
  margin: 0 auto;
  padding: 32px 16px 8px;
}

.step-indicator {
  display: flex;
  justify-content: space-between;
  margin-bottom: 32px;
  position: relative;
}

.step-indicator::before {
  content: '';
  position: absolute;
  top: 22px;
  left: 10%;
  right: 10%;
  height: 3px;
  background: linear-gradient(90deg, var(--border) 0%, var(--border) 50%, var(--accent-light) 50%, var(--accent-light) 100%);
  background-size: 200% 100%;
  background-position: 100% 0;
  z-index: 0;
  transition: background-position var(--transition-slow);
}

.step-indicator.active-progress::before {
  background-position: 0 0;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  position: relative;
  z-index: 1;
  flex: 1;
}

.step-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  color: var(--txt-muted);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.step.active .step-circle {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: transparent;
  color: var(--accent);
  box-shadow: 0 0 0 6px var(--primary-glow), var(--shadow-md);
  transform: scale(1.05);
}

.step.completed .step-circle {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-color: transparent;
  color: var(--primary-dark);
  box-shadow: var(--shadow-md);
}

.step.completed .step-circle::after {
  content: '✓';
  font-size: 18px;
}

.step-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--txt-muted);
  text-align: center;
  width: 80px;
  line-height: 1.3;
  transition: color var(--transition-fast);
}

.step.active .step-label {
  color: var(--primary);
  font-weight: 700;
}

.step.completed .step-label {
  color: var(--accent-dark);
}

/* ============ MAIN CONTENT ============ */
.content {
  max-width: 700px;
  margin: 0 auto;
  padding: 16px 16px 120px;
}

.screen {
  display: none;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.screen.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  padding: 28px;
  margin-bottom: 20px;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.card-title {
  font-size: 17px;
  font-weight: 700;
  font-family: 'Sora', sans-serif;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--txt);
  letter-spacing: -0.01em;
}

.card-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.card:hover .card-icon {
  background: var(--accent);
  color: var(--primary-dark);
  transform: rotate(-3deg) scale(1.05);
}

.card-subtitle {
  font-size: 14px;
  color: var(--txt-secondary);
  margin-bottom: 20px;
  padding-left: 52px;
  line-height: 1.5;
}

/* ============ FORM ELEMENTS ============ */
.form-group {
  margin-bottom: 20px;
}

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

.form-row.full {
  grid-column: 1 / -1;
}

/* ============ LABELS ============ */
label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--txt);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.label-required {
  color: #ef4444;
  font-size: 10px;
  font-weight: 800;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.label-note {
  font-size: 11px;
  color: var(--txt-muted);
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  margin-left: auto;
}

/* ============ FANCY INPUT FIELDS ============ */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
textarea {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  color: var(--txt);
  outline: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--border), var(--border)) border-box;
  box-shadow: var(--shadow-sm), inset 0 1px 2px rgba(15, 23, 42, 0.04);
}

input[type="text"]:hover,
input[type="email"]:hover,
input[type="tel"]:hover,
input[type="number"]:hover,
textarea:hover {
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--accent-light), var(--primary-light)) border-box;
  box-shadow: var(--shadow-md), inset 0 1px 2px rgba(27, 42, 74, 0.04);
  transform: translateY(-1px);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
textarea:focus {
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--accent), var(--primary)) border-box;
  box-shadow: var(--shadow-lg), 0 0 0 4px var(--primary-glow);
  transform: translateY(-2px);
}

input::placeholder,
textarea::placeholder {
  color: var(--txt-muted);
  font-weight: 400;
}

input:disabled,
textarea:disabled {
  background: var(--bg);
  color: var(--txt-muted);
  cursor: not-allowed;
  transform: none;
}

/* ============ FANCY SELECT DROPDOWNS ============ */
select {
  width: 100%;
  padding: 14px 40px 14px 16px;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  color: var(--txt);
  outline: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--border), var(--border)) border-box;
  box-shadow: var(--shadow-sm), inset 0 1px 2px rgba(15, 23, 42, 0.04);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 14px;
}

select:hover {
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--accent-light), var(--primary-light)) border-box;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23F5A623' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 14px;
  box-shadow: var(--shadow-md), inset 0 1px 2px rgba(27, 42, 74, 0.04);
  transform: translateY(-1px);
}

select:focus {
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--accent), var(--primary)) border-box;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23F5A623' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 14px;
  box-shadow: var(--shadow-lg), 0 0 0 4px var(--primary-glow);
  transform: translateY(-2px);
}

select option {
  padding: 10px;
  font-size: 14px;
  background: var(--surface);
}

/* ============ FANCY CHECKBOX ============ */
input[type="checkbox"] {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 2px solid var(--border-strong);
  background: var(--surface);
  cursor: pointer;
  transition: all 0.2s ease;
  accent-color: var(--primary);
  flex-shrink: 0;
  position: relative;
}

input[type="checkbox"]:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--primary-glow);
  transform: scale(1.05);
}

input[type="checkbox"]:checked {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(27, 42, 74, 0.4);
}

/* ============ PHONE INPUT WITH COUNTRY CODE ============ */
.phone-input-container {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
}

.country-code-select {
  padding: 14px 10px;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  color: var(--txt);
  cursor: pointer;
  min-width: 120px;
  max-width: 160px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--border), var(--border)) border-box;
  box-shadow: var(--shadow-sm), inset 0 1px 2px rgba(15, 23, 42, 0.04);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 12px;
  padding-right: 30px;
}

.country-code-select:hover {
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--accent-light), var(--primary-light)) border-box;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23F5A623' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 12px;
  box-shadow: var(--shadow-md), inset 0 1px 2px rgba(27, 42, 74, 0.04);
  transform: translateY(-1px);
}

.country-code-select:focus {
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--accent), var(--primary)) border-box;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23F5A623' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 12px;
  box-shadow: var(--shadow-lg), 0 0 0 4px var(--primary-glow);
  transform: translateY(-2px);
}

.country-code-select option {
  padding: 12px;
}

/* ============ LOCATION SELECTOR ============ */
.location-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.location-grid.full {
  grid-column: 1 / -1;
}

.location-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.location-grid label,
.location-row label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--txt-secondary);
  margin-bottom: 8px;
  font-weight: 700;
}

.location-grid select,
.location-row select {
  padding: 14px 16px;
  font-size: 14px;
}

/* ============ ELECTRICITY BILL SLIDER ============ */
.bill-slider-container {
  margin-top: 20px;
  padding: 24px;
  background: linear-gradient(135deg, #F4F6F9, #EEF1F5, #F8F9FB);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.slider {
  width: 100%;
  height: 10px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--border), var(--border-strong));
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
  position: relative;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(245, 166, 35, 0.4),
              0 0 0 4px rgba(245, 166, 35, 0.15);
  transition: all 0.2s ease;
  border: 3px solid #fff;
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 6px 20px rgba(245, 166, 35, 0.5),
              0 0 0 6px rgba(245, 166, 35, 0.2);
}

.slider::-webkit-slider-thumb:active {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(245, 166, 35, 0.6),
              0 0 0 8px rgba(245, 166, 35, 0.15);
}

.slider::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  cursor: pointer;
  border: 3px solid #fff;
  box-shadow: 0 4px 16px rgba(245, 166, 35, 0.4),
              0 0 0 4px rgba(245, 166, 35, 0.15);
}

.slider::-moz-range-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 6px 20px rgba(245, 166, 35, 0.5),
              0 0 0 6px rgba(245, 166, 35, 0.2);
}

.slider::-moz-range-track {
  height: 10px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--border), var(--border-strong));
}

.slider-display {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  margin-top: 18px;
  align-items: center;
}

.slider-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--accent-dark);
  font-family: 'Sora', sans-serif;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.slider-input {
  width: 180px !important;
  text-align: center;
  font-size: 16px;
  font-weight: 700;
  padding: 12px 16px;
  border: 2px solid transparent;
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--accent), var(--primary)) border-box;
  box-shadow: var(--shadow-sm), 0 0 0 3px var(--primary-glow);
}

.slider-input:focus {
  box-shadow: var(--shadow-md), 0 0 0 5px var(--primary-glow);
  transform: translateY(-1px);
}

.slider-range {
  font-size: 11px;
  color: var(--txt-muted);
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  font-weight: 500;
}

/* ============ CHOICE BUTTONS ============ */
.choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 14px;
}

.choice-btn {
  padding: 22px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  cursor: pointer;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.choice-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: inherit;
}

.choice-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.05), rgba(27, 42, 74, 0.05));
  transition: opacity 0.3s ease;
}

.choice-btn:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg), 0 0 0 4px var(--primary-glow);
  transform: translateY(-4px) scale(1.02);
}

.choice-btn:hover::after {
  opacity: 1;
}

.choice-btn:active {
  transform: translateY(-2px) scale(1.01);
}

.choice-btn.selected {
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: var(--shadow-xl), 0 0 0 4px var(--primary-glow),
              inset 0 1px 0 rgba(245,166,35,0.15);
  transform: translateY(-2px) scale(1.02);
}

.choice-btn.selected::before {
  opacity: 1;
}

.choice-btn.selected .choice-emoji,
.choice-btn.selected .choice-label,
.choice-btn.selected .choice-desc {
  color: #fff;
  position: relative;
  z-index: 1;
  text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.choice-btn:hover:not(.selected) .choice-emoji {
  transform: scale(1.2) rotate(-5deg);
}

.choice-emoji {
  font-size: 32px;
  display: block;
  margin-bottom: 10px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.choice-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--txt);
  margin-bottom: 4px;
  letter-spacing: 0.02em;
}

.choice-desc {
  font-size: 12px;
  color: var(--txt-secondary);
  line-height: 1.5;
  font-weight: 400;
}

/* ============ FOCUS RING ANIMATION ============ */
@keyframes focus-ring {
  0% { box-shadow: 0 0 0 0 var(--primary-glow); }
  70% { box-shadow: 0 0 0 6px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

input:focus,
select:focus,
textarea:focus {
  animation: focus-ring 0.4s ease-out;
}

/* ============ VALIDATION ERROR STATE ============ */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

input:invalid,
select:invalid,
textarea:invalid,
.is-invalid {
  border-color: #ef4444 !important;
  background: linear-gradient(#fff, #fff) padding-box,
              linear-gradient(135deg, #ef4444, #f97316) border-box !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2) !important;
  animation: shake 0.4s ease-in-out;
}

/* ============ BUTTONS ============ */
.btn {
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(245, 166, 35, 0.3);
  width: 100%;
  padding: 16px;
  font-size: 15px;
  margin-top: 8px;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(245, 166, 35, 0.4);
}

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

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

.btn-secondary {
  background: var(--surface);
  color: var(--primary);
  border: 1.5px solid var(--primary);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.button-row {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.button-row .btn-primary {
  flex: 1;
  margin-top: 0;
}

.button-row .btn-secondary {
  flex: 1;
  margin-top: 0;
}

.btn-download {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark)) !important;
  color: var(--primary-dark) !important;
  border: none !important;
  font-size: 16px !important;
  font-weight: 700 !important;
  padding: 18px 28px !important;
  box-shadow: 0 8px 24px rgba(245, 166, 35, 0.35) !important;
  transition: all var(--transition-base) !important;
  flex: 1;
  min-width: 300px;
  letter-spacing: 0.02em;
  position: relative;
  overflow: hidden;
}

.btn-download::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-download:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 14px 32px rgba(245, 166, 35, 0.45) !important;
}

.btn-download:active {
  transform: translateY(0) !important;
}

/* ============ CONSENT ============ */
.consent-box {
  background: var(--accent-light);
  border: 1px solid rgba(245, 166, 35, 0.25);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 16px 0;
  font-size: 13px;
  color: var(--primary-dark);
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.consent-box input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.consent-box label {
  display: inline;
  margin: 0;
  font-size: 13px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  cursor: pointer;
  color: var(--primary-dark);
  line-height: 1.5;
}

/* ============ OTP VERIFICATION PANEL ============ */
.otp-panel {
  margin-top: 20px;
  padding: 20px;
  background: var(--accent-light);
  border: 1px solid rgba(245, 166, 35, 0.3);
  border-radius: var(--radius-lg);
}

.otp-panel-title {
  font-size: 15px;
  font-weight: 700;
  font-family: 'Sora', sans-serif;
  color: var(--txt);
  margin-bottom: 8px;
}

.otp-panel-desc {
  font-size: 13px;
  color: var(--txt-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.otp-panel #fotp {
  font-size: 22px;
  letter-spacing: 6px;
  text-align: center;
  font-weight: 700;
  font-family: 'Sora', sans-serif;
}

.otp-error {
  color: #ef4444;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}

.otp-resend-row {
  text-align: center;
  margin-top: 16px;
  font-size: 13px;
  color: var(--txt-secondary);
}

.otp-resend-btn {
  background: none;
  border: none;
  color: var(--primary);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  margin-left: 4px;
}

.otp-resend-btn:disabled {
  color: var(--txt-muted);
  cursor: not-allowed;
  text-decoration: none;
}

/* ============ PILLAR FOOTER ============ */
.pillar-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  padding: 14px 20px;
  display: none;
  z-index: 90;
  box-shadow: 0 -4px 20px rgba(15, 23, 42, 0.05);
}

.pillar-footer.show {
  display: block;
  animation: slideUp 0.3s ease;
}

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

.pillar-footer-content {
  max-width: 700px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.pillar-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  text-align: center;
  transition: all var(--transition-fast);
}

.pillar-badge:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pillar-badge.epc {
  border-color: var(--primary);
  color: var(--primary);
}

.pillar-badge.om {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.pillar-badge.ppa {
  border-color: var(--coral);
  color: var(--coral);
}

.pillar-badge-icon {
  font-size: 16px;
}

/* ============ RESULTS SECTION ============ */
.results {
  display: none;
}

.results.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Results highlight cards */
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.highlight-item {
  background: linear-gradient(135deg, var(--accent-light), #FFF8EE);
  border: 1px solid rgba(245, 166, 35, 0.2);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.highlight-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.highlight-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.highlight-value {
  font-size: 22px;
  font-weight: 800;
  font-family: 'Sora', sans-serif;
  color: var(--primary);
  line-height: 1.1;
  margin-bottom: 6px;
}

.highlight-label {
  font-size: 11px;
  color: var(--txt-secondary);
  line-height: 1.3;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Coverage bar */
.coverage-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}

.coverage-bar h4 {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--txt);
}

.bar-track {
  background: var(--border);
  border-radius: var(--radius-full);
  height: 12px;
  overflow: hidden;
  margin-bottom: 10px;
}

.bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 10px;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(245, 166, 35, 0.3);
}

.bar-text {
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.bar-note {
  font-size: 12px;
  color: var(--txt-secondary);
  font-weight: 500;
}

/* Key metrics grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.kpi-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.kpi-card.accent::before {
  background: linear-gradient(90deg, var(--accent), var(--coral));
}

.kpi-icon {
  font-size: 22px;
  margin-bottom: 8px;
}

.kpi-value {
  font-size: clamp(16px, 2.2vw, 22px);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.kpi-card.accent .kpi-value {
  color: var(--accent-dark);
}

.kpi-label {
  font-size: 11px;
  color: var(--txt-secondary);
  line-height: 1.4;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* EPC vs PPA comparison */
.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}

.comparison-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all var(--transition-base);
}

.comparison-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.comparison-card.full {
  grid-column: 1 / -1;
}

.comparison-card.accent::before {
  background: linear-gradient(90deg, var(--accent), var(--coral));
}

.comparison-card.accent .comparison-title::before {
  background: linear-gradient(180deg, var(--accent), var(--coral));
}

.comparison-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--txt-secondary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.comparison-title::before {
  content: '';
  display: block;
  width: 4px;
  height: 14px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 2px;
}

.ppa-box {
  background: linear-gradient(135deg, var(--accent-light), #FFF8EE);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
}

.ppa-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-dark);
  margin-bottom: 12px;
}

.ppa-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(139, 111, 94, 0.15);
  font-size: 13px;
}

.ppa-row:last-child {
  border: none;
}

.ppa-label {
  color: var(--txt-secondary);
  font-weight: 500;
}

.ppa-value {
  font-weight: 700;
  color: var(--accent-dark);
}

/* BOI section */
.boi-box {
  background: linear-gradient(135deg, var(--primary-light), #EEF1F5);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.boi-icon {
  font-size: 28px;
  flex-shrink: 0;
}

.boi-content h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 6px;
}

.boi-content p {
  font-size: 12px;
  color: var(--txt-secondary);
  line-height: 1.6;
}

.boi-content strong {
  color: var(--primary-dark);
}

/* Carbon impact */
.carbon-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.carbon-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--transition-base);
}

.carbon-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.carbon-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

.carbon-label {
  font-size: 12px;
  color: var(--txt-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Charts */
.chart-container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 20px;
}

.chart-container h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--primary);
}

#ch1, #ch2, #ch3, #ch4 {
  max-height: 320px;
}

/* Disclaimer */
.disclaimer {
  background: #fffbf0;
  border: 1px solid #f0d080;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 9px;
  color: #7a6020;
  line-height: 1.6;
  margin-bottom: 11px;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }
  .kpi-grid {
    grid-template-columns: 1fr 1fr;
  }
  .comparison-row {
    grid-template-columns: 1fr;
  }
  .carbon-grid {
    grid-template-columns: 1fr;
  }
  .charts-row {
    grid-template-columns: 1fr;
  }
  .comparison-cards-row {
    grid-template-columns: 1fr;
  }
  .cta-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .cta-contacts {
    align-items: center;
  }
  .om-grid {
    grid-template-columns: 1fr;
  }
  .retrofit-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .header {
    flex-direction: column;
    gap: 12px;
    padding: 16px;
  }
  .header-brand {
    width: 100%;
    justify-content: center;
  }
  .logo-img {
    height: 48px;
  }
  .brand-text .brand-name {
    font-size: 17px;
  }
  .hero {
    padding: 40px 16px 36px;
  }
  .hero-trust {
    gap: 12px;
  }
  .trust-item {
    font-size: 11px;
    padding: 6px 12px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .phone-input-container {
    grid-template-columns: auto 1fr;
  }
  .location-grid {
    grid-template-columns: 1fr;
  }
  .choice-grid {
    grid-template-columns: 1fr;
  }
  .highlight-grid {
    grid-template-columns: 1fr;
  }
  .kpi-grid {
    grid-template-columns: 1fr;
  }
  .carbon-grid {
    grid-template-columns: 1fr;
  }
  .pillar-footer-content {
    gap: 10px;
  }
  .pillar-badge {
    padding: 10px 12px;
    font-size: 11px;
  }
  .button-row {
    flex-direction: column;
  }
  .button-row .btn-primary,
  .button-row .btn-secondary {
    width: 100%;
  }
  .content {
    padding: 12px 12px 160px;
  }
  .card {
    padding: 20px;
  }
  .step-label {
    font-size: 10px;
    width: 65px;
  }
  .step-circle {
    width: 36px;
    height: 36px;
    font-size: 13px;
  }
  .cta-secondary-row {
    flex-direction: column;
  }
  .om-grid {
    grid-template-columns: 1fr;
  }
  .retrofit-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============ CHARTS SIDE-BY-SIDE ============ */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.charts-row .chart-card {
  margin-bottom: 0;
}

/* ============ EPC + PPA SIDE-BY-SIDE ============ */
.comparison-cards-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.comparison-card-epc,
.comparison-card-ppa {
  margin-bottom: 0;
}
.ppa-subtitle {
  font-size: 12px;
  color: var(--txt-secondary);
  margin-bottom: 12px;
  font-weight: 500;
}

/* ============ RETROFIT LEVEL BUTTONS ============ */
.retrofit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 8px;
}
.retrofit-btn {
  padding: 16px 10px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
}
.retrofit-btn:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.retrofit-btn.selected {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--primary-light), #EEF1F5);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.retrofit-label {
  font-size: 16px;
  font-weight: 800;
  font-family: 'Sora', sans-serif;
  color: var(--txt);
}
.retrofit-btn.selected .retrofit-label {
  color: var(--primary);
}
.retrofit-desc {
  font-size: 11px;
  color: var(--txt-secondary);
  margin-top: 2px;
}
.retrofit-note {
  font-size: 11px;
  color: var(--txt-muted);
  margin-top: 8px;
  line-height: 1.4;
}

/* ============ O&M PACKAGE CARDS ============ */
.om-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 8px;
}
.om-card {
  padding: 20px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
}
.om-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.om-card.selected {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--primary-light), #EEF1F5);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.om-icon {
  font-size: 28px;
  margin-bottom: 8px;
}
.om-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--txt);
  margin-bottom: 4px;
}
.om-card.selected .om-name {
  color: var(--primary);
}
.om-cost {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-dark);
  margin-bottom: 6px;
}
.om-desc {
  font-size: 11px;
  color: var(--txt-secondary);
  line-height: 1.4;
}

/* ============ CTA CARD (combined CTA + actions) ============ */
.cta-card {
  background: linear-gradient(135deg, #111D35, #1B2A4A, #243656);
  border: 1px solid rgba(245, 166, 35, 0.2);
}
.cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}
.cta-text h3 {
  font-size: 18px;
  font-weight: 800;
  font-family: 'Sora', sans-serif;
  color: #FFFFFF;
  margin-bottom: 8px;
}
.cta-text p {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 14px;
  line-height: 1.6;
}
.cta-contacts {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.cta-contacts a {
  font-size: 12px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}
.cta-contacts a:hover {
  color: #FFD080;
}
.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cta-actions .btn-download {
  width: 100%;
  font-size: 15px;
  padding: 16px;
}
.cta-secondary-row {
  display: flex;
  gap: 10px;
}
.cta-secondary-row .btn-secondary {
  flex: 1;
}

/* ============ PRINT STYLES (PDF DOWNLOAD) ============ */
@media print {
  * {
    margin: 0 !important;
    padding: 0 !important;
  }

  .header,
  .hero,
  .pillars-section,
  .progress-section,
  .screen:not(.active),
  .step-indicator,
  .step-circle,
  .step-label,
  .button-row,
  .lang-toggle,
  #specsSection,
  .pillar-footer {
    display: none !important;
  }

  .results,
  #resultsSection {
    display: block !important;
  }

  body {
    background: white !important;
    color: #000 !important;
    font-size: 11pt;
    line-height: 1.5;
    font-family: 'Inter', Arial, sans-serif !important;
  }

  .content {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
    background: white !important;
  }

  #resultsSection::before {
    content: 'IDN69 Solar Savings Estimator';
    display: block;
    font-size: 24pt;
    font-weight: 800;
    color: #1B2A4A;
    text-align: center;
    padding: 20mm 20mm 5mm;
    border-bottom: 3px solid #F5A623;
    margin-bottom: 20mm;
    page-break-after: avoid;
    font-family: 'Sora', Arial, sans-serif;
  }

  .card {
    page-break-inside: avoid;
    background: white !important;
    border: 1px solid #d0d0d0 !important;
    margin: 0 20mm 15mm 20mm !important;
    padding: 14pt !important;
    border-radius: 6px;
    box-shadow: none !important;
  }

  .card:first-child {
    margin-top: 0 !important;
  }

  .card-title {
    font-size: 14pt !important;
    font-weight: 700 !important;
    color: #0f172a !important;
    margin-bottom: 8pt !important;
    page-break-after: avoid;
  }

  .card-icon {
    font-size: 18pt !important;
    flex-shrink: 0;
  }

  .card-subtitle {
    font-size: 10pt !important;
    color: #555 !important;
    margin-bottom: 10pt !important;
  }

  .kpi-grid {
    display: grid !important;
    grid-template-columns: 1fr 1fr 1fr !important;
    gap: 10pt !important;
    page-break-inside: avoid;
    margin-bottom: 15pt !important;
  }

  .kpi-card {
    border: 1px solid #e0e0e0 !important;
    padding: 12pt !important;
    background: white !important;
    page-break-inside: avoid;
    border-radius: 4px;
    box-shadow: none !important;
  }

  .kpi-value {
    font-size: 14pt !important;
    font-weight: 700 !important;
    color: #1B2A4A !important;
    margin-bottom: 4pt !important;
  }

  .kpi-label {
    font-size: 9pt !important;
    color: #666 !important;
  }

  canvas {
    max-width: 100% !important;
    height: auto !important;
    page-break-inside: avoid;
    background: white !important;
    display: block !important;
  }

  .comparison-row {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 12pt !important;
    page-break-inside: avoid;
  }

  .comparison-card {
    border: 1px solid #e0e0e0 !important;
    padding: 12pt !important;
    background: white !important;
    page-break-inside: avoid;
    border-radius: 4px;
    box-shadow: none !important;
  }

  .comparison-card.full {
    grid-column: 1 / -1 !important;
  }

  .comparison-title {
    font-size: 11pt !important;
    font-weight: 700 !important;
    color: #0f172a !important;
    margin-bottom: 8pt !important;
    page-break-after: avoid;
  }

  .ppa-box,
  .boi-box {
    background: white !important;
    border: 1px solid #d0d0d0 !important;
    page-break-inside: avoid;
    margin-bottom: 12pt !important;
    padding: 12pt !important;
    border-radius: 4px;
  }

  .ppa-title {
    font-size: 12pt !important;
    font-weight: 700 !important;
    color: #0f172a !important;
    page-break-after: avoid;
    margin-bottom: 8pt !important;
  }

  .ppa-row {
    display: flex !important;
    justify-content: space-between !important;
    padding: 6pt 0 !important;
    border-bottom: 1px solid #f0f0f0 !important;
    font-size: 10pt !important;
  }

  .ppa-row:last-child {
    border: none !important;
  }

  .ppa-label {
    color: #666 !important;
  }

  .ppa-value {
    font-weight: 700 !important;
    color: #0f172a !important;
  }

  .carbon-grid {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 12pt !important;
    page-break-inside: avoid;
  }

  .carbon-card {
    border: 1px solid #e0e0e0 !important;
    padding: 12pt !important;
    background: white !important;
    page-break-inside: avoid;
    border-radius: 4px;
    text-align: center;
  }

  .carbon-value {
    font-size: 14pt !important;
    font-weight: 700 !important;
    color: #1B2A4A !important;
    margin-bottom: 4pt !important;
  }

  .carbon-label {
    font-size: 9pt !important;
    color: #666 !important;
  }

  .disclaimer {
    font-size: 9pt !important;
    color: #333 !important;
    border: 1px solid #ffc107 !important;
    padding: 12pt !important;
    background: #fffbf0 !important;
    page-break-inside: avoid;
    border-radius: 4px;
  }

  #resultsSection::after {
    content: '';
    display: block;
    width: 100%;
    margin-top: 25mm;
    padding: 15mm 20mm;
    border-top: 2px solid #F5A623;
    page-break-inside: avoid;
  }

  .card:last-child::after {
    content: 'For more information, contact IDN69\A📧 works@dn69.org  |  📞 +66 98 641 1923  |  🌐 www.dn69.org\A\AThis estimate is prepared by IDN69 Solar Savings Estimator';
    white-space: pre-wrap;
    display: block;
    font-size: 9pt;
    color: #666;
    text-align: center;
    margin-top: 15mm;
    padding-top: 10mm;
    border-top: 1px solid #e0e0e0;
  }

  h1, h2, h3, h4, h5, h6 {
    color: #0f172a !important;
    page-break-after: avoid;
    margin: 0 !important;
  }

  p {
    color: #333 !important;
    page-break-inside: avoid;
    margin: 0 !important;
  }

  a {
    color: #2c5aa0 !important;
    text-decoration: underline !important;
  }

  .card:nth-child(3n) {
    page-break-after: auto;
  }

  @page {
    margin: 15mm;
    size: A4;
  }
}