/* ==========================================================================
   VOLTHA ENERGY - DESIGN SYSTEM & STYLESHEET
   Modern, High-Conversion B2B Energy Procurement Platform
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,600&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  /* Brand Colors */
  --primary-navy: #0a0f1d;
  --primary-navy-light: #111a2e;
  --primary-navy-card: #152238;
  --primary-navy-border: #1e2d4a;

  --emerald-dark: #0f5a3c;
  --emerald-mid: #147a52;
  --energy-green: #24c97e;
  --energy-green-light: #4eedb0;
  --energy-green-glow: rgba(36, 201, 126, 0.25);
  --energy-green-dim: rgba(36, 201, 126, 0.1);

  --accent-amber: #f59e0b;
  --accent-amber-light: #fef3c7;
  --accent-blue: #3b82f6;
  --accent-blue-light: #eff6ff;

  /* Neutrals & Surfaces */
  --bg-dark: #070b14;
  --bg-surface-dark: #0d1527;
  --bg-light: #f8fafc;
  --bg-card-light: #ffffff;
  --bg-section-alt: #f1f5f9;

  --text-main-dark: #ffffff;
  --text-muted-dark: #94a3b8;
  --text-dim-dark: #64748b;

  --text-main-light: #0f172a;
  --text-muted-light: #475569;
  --text-dim-light: #64748b;

  --border-dark: rgba(255, 255, 255, 0.08);
  --border-dark-hover: rgba(36, 201, 126, 0.4);
  --border-light: #e2e8f0;
  --border-light-hover: #cbd5e1;

  /* Shadows & Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md:
    0 8px 24px -4px rgba(10, 15, 29, 0.08),
    0 4px 8px -2px rgba(10, 15, 29, 0.04);
  --shadow-lg:
    0 20px 40px -8px rgba(10, 15, 29, 0.12),
    0 8px 16px -4px rgba(10, 15, 29, 0.06);
  --shadow-glow: 0 0 40px rgba(36, 201, 126, 0.22);
  --shadow-dark-card: 0 10px 30px rgba(0, 0, 0, 0.4);

  /* Typography */
  --font-sans:
    'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    sans-serif;
  --font-heading:
    'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 300ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 500ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-max: 1240px;
  --container-tight: 1020px;
  --header-height: 80px;
  --topbar-height: 38px;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main-light);
  background-color: var(--bg-dark);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img,
svg,
video {
  max-width: 100%;
  display: block;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.3rem, 4.5vw, 3.8rem);
}
h2 {
  font-size: clamp(1.9rem, 3.2vw, 2.75rem);
}
h3 {
  font-size: clamp(1.35rem, 2vw, 1.75rem);
}
h4 {
  font-size: 1.2rem;
}

p {
  margin-bottom: 1rem;
}
p:last-child {
  margin-bottom: 0;
}

.lead {
  font-size: clamp(1.1rem, 1.3vw, 1.28rem);
  line-height: 1.65;
  color: var(--text-muted-dark);
}

.lead--light {
  color: var(--text-muted-light);
}

/* Layout Wrappers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container--tight {
  max-width: var(--container-tight);
}

.section {
  padding: 6rem 0;
  position: relative;
}

.section--sm {
  padding: 4rem 0;
}

.section--lg {
  padding: 8rem 0;
}

.section--dark {
  background-color: var(--bg-dark);
  color: var(--text-main-dark);
}

.section--surface {
  background-color: var(--bg-surface-dark);
  color: var(--text-main-dark);
}

.section--light {
  background-color: var(--bg-light);
  color: var(--text-main-light);
}

.section--white {
  background-color: #ffffff;
  color: var(--text-main-light);
}

/* Utility Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge--green {
  background: rgba(36, 201, 126, 0.12);
  color: var(--energy-green-light);
  border: 1px solid rgba(36, 201, 126, 0.25);
}

.badge--dark-green {
  background: rgba(15, 90, 60, 0.25);
  color: #24c97e;
  border: 1px solid rgba(36, 201, 126, 0.3);
}

.badge--amber {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge--light {
  background: #edf2f7;
  color: var(--text-main-light);
  border: 1px solid var(--border-light);
}

.badge .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--energy-green);
  box-shadow: 0 0 0 0 rgba(36, 201, 126, 0.7);
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(36, 201, 126, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 8px rgba(36, 201, 126, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(36, 201, 126, 0);
  }
}

.highlight-text {
  background: linear-gradient(
    135deg,
    #ffffff 40%,
    var(--energy-green-light) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.highlight-green {
  color: var(--energy-green);
}

/* Header & Navigation */
.topbar {
  background: #05080f;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.82rem;
  color: var(--text-muted-dark);
  padding: 0.45rem 0;
  position: relative;
  z-index: 102;
}

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

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

.topbar__right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.topbar__right a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted-dark);
}
.topbar__right a:hover {
  color: var(--energy-green-light);
}

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(10, 15, 29, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.site-header.scrolled {
  background: rgba(7, 11, 20, 0.96);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border-bottom: 1px solid rgba(36, 201, 126, 0.15);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  cursor: pointer;
}

.brand-logo__svg {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
}

.brand-logo__text {
  display: flex;
  flex-direction: column;
}

.brand-logo__name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.03em;
  line-height: 1;
}

.brand-logo__sub {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--energy-green);
  margin-top: 2px;
}

/* Navigation Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-link {
  padding: 0.55rem 0.9rem;
  color: #cbd5e1;
  font-size: 0.93rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: var(--energy-green-light);
  background: rgba(36, 201, 126, 0.08);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.96rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-align: center;
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, #24c97e 0%, #16a364 100%);
  color: #062315;
  box-shadow: 0 4px 18px rgba(36, 201, 126, 0.35);
}
.btn--primary:hover {
  background: linear-gradient(135deg, #2de390 0%, #1bb872 100%);
  box-shadow: 0 6px 24px rgba(36, 201, 126, 0.5);
  transform: translateY(-1px);
  color: #04170e;
}

.btn--secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
}
.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.btn--ghost-light {
  background: #ffffff;
  color: var(--text-main-light);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}
.btn--ghost-light:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  transform: translateY(-1px);
}

.btn--sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.86rem;
}

.btn--lg {
  padding: 1.05rem 2.2rem;
  font-size: 1.06rem;
  border-radius: var(--radius-md);
}

.btn--block {
  width: 100%;
}

.burger-btn {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  color: #ffffff;
  padding: 0.5rem;
  cursor: pointer;
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(7, 11, 20, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  overflow-y: auto;
}

.mobile-drawer.active {
  transform: translateX(0);
}

.mobile-drawer__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 1.5rem;
}

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

.mobile-drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
}

.mobile-drawer__link:hover,
.mobile-drawer__link.active {
  color: var(--energy-green-light);
  background: rgba(36, 201, 126, 0.1);
}

.mobile-drawer__footer {
  margin-top: auto;
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 5rem 0 6.5rem;
  overflow: hidden;
  background:
    radial-gradient(
      circle at 80% 20%,
      rgba(15, 90, 60, 0.28) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 10% 80%,
      rgba(36, 201, 126, 0.12) 0%,
      transparent 40%
    ),
    var(--bg-dark);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(to top, var(--bg-surface-dark), transparent);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero__title {
  color: #ffffff;
  margin-top: 0.5rem;
}

.hero__desc {
  font-size: 1.2rem;
  color: #94a3b8;
  max-width: 580px;
}

.hero__usps {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0.5rem 0 1rem;
}

.hero__usp-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #e2e8f0;
  font-size: 0.98rem;
  font-weight: 500;
}

.hero__usp-icon {
  width: 20px;
  height: 20px;
  color: var(--energy-green);
  flex-shrink: 0;
}

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

.hero__trust-points {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.trust-tag {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.86rem;
  color: var(--text-muted-dark);
}

.trust-tag svg {
  width: 16px;
  height: 16px;
  color: var(--energy-green);
}

/* Multi-Step Energy Calculator Card */
.calc-card {
  background: rgba(17, 26, 46, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 2.2rem;
  box-shadow:
    0 25px 50px -12px rgba(0, 0, 0, 0.6),
    0 0 35px rgba(36, 201, 126, 0.12);
  backdrop-filter: blur(20px);
  position: relative;
}

.calc-card__badge {
  position: absolute;
  top: -12px;
  right: 2rem;
  background: var(--energy-green);
  color: #052315;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(36, 201, 126, 0.4);
}

.calc-card__head {
  margin-bottom: 1.5rem;
}

.calc-card__title {
  color: #ffffff;
  font-size: 1.5rem;
  margin-bottom: 0.3rem;
}

.calc-card__subtitle {
  color: var(--text-muted-dark);
  font-size: 0.9rem;
}

/* Multi-step progress bar */
.stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  position: relative;
}

.stepper::before {
  content: '';
  position: absolute;
  top: 15px;
  left: 10%;
  width: 80%;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  z-index: 1;
}

.stepper__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  position: relative;
  z-index: 2;
  cursor: pointer;
}

.stepper__circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-navy);
  border: 2px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted-dark);
  transition: all var(--transition-fast);
}

.stepper__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted-dark);
  text-align: center;
}

.stepper__step.active .stepper__circle {
  background: var(--energy-green);
  border-color: var(--energy-green);
  color: #052315;
  box-shadow: 0 0 16px rgba(36, 201, 126, 0.5);
}

.stepper__step.active .stepper__label {
  color: #ffffff;
}

.stepper__step.completed .stepper__circle {
  background: var(--emerald-dark);
  border-color: var(--energy-green);
  color: #ffffff;
}

/* Form controls */
.form-step {
  display: none;
  animation: fadeInStep 0.3s ease forwards;
}

.form-step.active {
  display: block;
}

@keyframes fadeInStep {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 0.45rem;
}

.form-label .req {
  color: var(--energy-green);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(10, 15, 29, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 0.94rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--energy-green);
  box-shadow: 0 0 0 3px rgba(36, 201, 126, 0.18);
  background: rgba(10, 15, 29, 0.9);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #64748b;
}

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

.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.75rem;
}

/* Segmented Choice Radio Cards */
.segment-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.segment-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.85rem 0.5rem;
  background: rgba(10, 15, 29, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.segment-card input[type='radio'] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segment-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
}

.segment-card.checked {
  background: rgba(36, 201, 126, 0.12);
  border-color: var(--energy-green);
  box-shadow: 0 0 14px rgba(36, 201, 126, 0.2);
}

.segment-card__title {
  font-weight: 700;
  font-size: 0.9rem;
  color: #ffffff;
}

.segment-card__sub {
  font-size: 0.72rem;
  color: var(--text-muted-dark);
  margin-top: 2px;
}

.segment-card.checked .segment-card__title {
  color: var(--energy-green-light);
}

/* File Upload Field */
.file-upload-box {
  border: 2px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  text-align: center;
  background: rgba(10, 15, 29, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.file-upload-box:hover {
  border-color: var(--energy-green);
  background: rgba(36, 201, 126, 0.04);
}

.file-upload-box input[type='file'] {
  display: none;
}

.file-upload-box svg {
  width: 28px;
  height: 28px;
  color: var(--energy-green);
}

.file-upload-box__title {
  font-size: 0.88rem;
  font-weight: 600;
  color: #e2e8f0;
}

.file-upload-box__hint {
  font-size: 0.75rem;
  color: #64748b;
}

/* Checkbox */
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  cursor: pointer;
  font-size: 0.84rem;
  color: var(--text-muted-dark);
  line-height: 1.45;
}

.form-checkbox input {
  margin-top: 0.2rem;
  accent-color: var(--energy-green);
}

.form-checkbox a {
  color: var(--energy-green-light);
  text-decoration: underline;
}

/* Form Nav Buttons */
.form-nav {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Form Feedback & Success state */
.form-error-msg {
  font-size: 0.78rem;
  color: #f87171;
  margin-top: 0.3rem;
  display: none;
}

.form-error-msg.visible {
  display: block;
}

.form-success-state {
  display: none;
  text-align: center;
  padding: 2rem 1rem;
}

.form-success-state.active {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.success-icon-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(36, 201, 126, 0.15);
  border: 2px solid var(--energy-green);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--energy-green);
  margin-bottom: 0.5rem;
  box-shadow: 0 0 25px rgba(36, 201, 126, 0.4);
}

/* Trust Logos & Partners Section */
.trust-bar {
  background: var(--bg-surface-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 2.75rem 0;
}

.trust-bar__head {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim-dark);
  margin-bottom: 1.75rem;
}

.trust-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
}

.trust-logo-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.2rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  color: #94a3b8;
  font-size: 0.88rem;
  font-weight: 600;
  filter: grayscale(100%);
  opacity: 0.75;
  transition: all var(--transition-fast);
}

.trust-logo-item:hover {
  filter: grayscale(0%);
  opacity: 1;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(36, 201, 126, 0.3);
  color: #ffffff;
}

.trust-logo-item svg {
  width: 22px;
  height: 22px;
  color: var(--energy-green);
}

/* Feature Cards & Bento Grids */
.section-head {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 4rem;
}

.section-head--left {
  text-align: left;
  margin-left: 0;
}

.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--energy-green);
  margin-bottom: 0.75rem;
}

.section-head h2 {
  color: inherit;
  margin-bottom: 1rem;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

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

/* Advantage Cards (Dark & Light) */
.adv-card {
  background: var(--primary-navy-light);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  transition: all var(--transition-smooth);
  position: relative;
  display: flex;
  flex-direction: column;
}

.adv-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-dark-hover);
  box-shadow:
    0 20px 40px -10px rgba(0, 0, 0, 0.5),
    0 0 25px rgba(36, 201, 126, 0.15);
}

.adv-card__icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(36, 201, 126, 0.12);
  border: 1px solid rgba(36, 201, 126, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--energy-green-light);
  margin-bottom: 1.5rem;
  transition: all var(--transition-fast);
}

.adv-card:hover .adv-card__icon {
  background: var(--energy-green);
  color: #052315;
  transform: scale(1.06);
}

.adv-card__title {
  color: #ffffff;
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.adv-card__desc {
  color: var(--text-muted-dark);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Comparison Table / Box */
.compare-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.compare-box {
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
}

.compare-box--old {
  background: rgba(239, 68, 68, 0.03);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.compare-box--new {
  background: rgba(36, 201, 126, 0.05);
  border: 2px solid rgba(36, 201, 126, 0.35);
  box-shadow: 0 15px 35px rgba(36, 201, 126, 0.08);
}

.compare-box__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.compare-box--old .compare-box__badge {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
}

.compare-box--new .compare-box__badge {
  background: var(--energy-green);
  color: #052315;
}

.compare-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.5rem 0;
}

.compare-list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.compare-box--old .compare-list-item {
  color: #94a3b8;
}

.compare-box--old .compare-list-item svg {
  width: 20px;
  height: 20px;
  color: #ef4444;
  flex-shrink: 0;
  margin-top: 2px;
}

.compare-box--new .compare-list-item {
  color: #e2e8f0;
  font-weight: 500;
}

.compare-box--new .compare-list-item svg {
  width: 20px;
  height: 20px;
  color: var(--energy-green);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Service Detail Cards / Bento Grid */
.service-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.service-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--emerald-dark);
  margin-bottom: 1.25rem;
}

.service-card__title {
  color: var(--text-main-light);
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
}

.service-card__desc {
  color: var(--text-muted-light);
  font-size: 0.94rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--emerald-mid);
  margin-top: auto;
}

.service-card__link:hover {
  color: var(--emerald-dark);
  gap: 0.65rem;
}

/* 4-Step Process Section */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
  position: relative;
}

.process-step {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem 1.6rem;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.process-step:hover {
  border-color: var(--energy-green);
  box-shadow: var(--shadow-md);
}

.process-step__number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--emerald-mid);
  line-height: 1;
  margin-bottom: 1rem;
}

.process-step__title {
  font-size: 1.15rem;
  color: var(--text-main-light);
  margin-bottom: 0.5rem;
}

.process-step__desc {
  font-size: 0.9rem;
  color: var(--text-muted-light);
  line-height: 1.55;
}

/* Procurement Models Interactive Box */
.model-card {
  background: var(--primary-navy-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
}

.model-card__head {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.model-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(36, 201, 126, 0.12);
  color: var(--energy-green);
  display: flex;
  align-items: center;
  justify-content: center;
}

.model-card__title {
  color: #ffffff;
  font-size: 1.3rem;
}

.model-card__lead {
  color: #94a3b8;
  font-size: 0.92rem;
  margin-bottom: 1.5rem;
}

.model-split {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-top: auto;
}

.model-block {
  padding: 1rem;
  border-radius: var(--radius-sm);
}

.model-block--pro {
  background: rgba(36, 201, 126, 0.08);
  border-left: 3px solid var(--energy-green);
}

.model-block--con {
  background: rgba(245, 158, 11, 0.08);
  border-left: 3px solid var(--accent-amber);
}

.model-block__title {
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.model-block--pro .model-block__title {
  color: var(--energy-green-light);
}

.model-block--con .model-block__title {
  color: #fbbf24;
}

.model-block ul {
  list-style: none;
  font-size: 0.86rem;
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.model-block ul li {
  position: relative;
  padding-left: 1.1rem;
}

.model-block--pro ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--energy-green);
}

.model-block--con ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #fbbf24;
}

/* Industry Target Audience Grid */
.target-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.target-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.target-card:hover {
  border-color: var(--emerald-mid);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.target-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--emerald-dark);
  margin-bottom: 1.2rem;
}

.target-card__title {
  font-size: 1.2rem;
  color: var(--text-main-light);
  margin-bottom: 0.6rem;
}

.target-card__desc {
  font-size: 0.9rem;
  color: var(--text-muted-light);
  line-height: 1.55;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item--dark {
  background: var(--primary-navy-card);
  border-color: rgba(255, 255, 255, 0.08);
}

.faq-item.active {
  border-color: var(--energy-green);
  box-shadow: var(--shadow-sm);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem 1.75rem;
  background: transparent;
  border: none;
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  color: var(--text-main-light);
  gap: 1.5rem;
}

.faq-item--dark .faq-trigger {
  color: #ffffff;
}

.faq-trigger:hover {
  color: var(--emerald-mid);
}

.faq-item--dark .faq-trigger:hover {
  color: var(--energy-green-light);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item--dark .faq-icon {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--energy-green);
  color: #052315;
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.35s ease,
    padding 0.35s ease;
  padding: 0 1.75rem;
  color: var(--text-muted-light);
  font-size: 0.96rem;
  line-height: 1.65;
}

.faq-item--dark .faq-content {
  color: var(--text-muted-dark);
}

.faq-item.active .faq-content {
  padding-bottom: 1.5rem;
}

/* Call to Action Banner (Pre-Footer) */
.cta-banner {
  background: linear-gradient(135deg, #091224 0%, #0f3b29 100%);
  border: 1px solid rgba(36, 201, 126, 0.25);
  border-radius: var(--radius-xl);
  padding: 4.5rem 3.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow:
    0 30px 60px -15px rgba(0, 0, 0, 0.7),
    var(--shadow-glow);
}

.cta-banner__inner {
  max-width: 780px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.cta-banner h2 {
  color: #ffffff;
  margin-bottom: 1.2rem;
}

.cta-banner p {
  color: #cbd5e1;
  font-size: 1.15rem;
  margin-bottom: 2.2rem;
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.2rem;
}

/* Subpage Hero & Content Styles */
.subpage-hero {
  padding: 4.5rem 0 5rem;
  background:
    radial-gradient(
      circle at 80% 10%,
      rgba(15, 90, 60, 0.25) 0%,
      transparent 60%
    ),
    var(--bg-dark);
  color: #ffffff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.84rem;
  color: var(--text-muted-dark);
  margin-bottom: 1.5rem;
}

.breadcrumbs a:hover {
  color: var(--energy-green);
}

.breadcrumbs span {
  color: var(--text-dim-dark);
}

.info-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin: 2.5rem 0;
}

.info-stat-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.info-stat-card__val {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--energy-green);
  margin-bottom: 0.25rem;
}

.info-stat-card__lbl {
  font-size: 0.86rem;
  color: var(--text-muted-dark);
}

/* Table styling for energy breakdowns */
.b2b-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.94rem;
}

.b2b-table th {
  background: var(--primary-navy-card);
  color: #ffffff;
  padding: 1rem;
  text-align: left;
  border-bottom: 2px solid var(--energy-green);
  font-family: var(--font-heading);
}

.b2b-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-main-light);
}

.b2b-table tr:nth-child(even) td {
  background: #f8fafc;
}

/* Article / Blog Grid */
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.article-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

.article-card__header {
  padding: 1.5rem 1.75rem 0.5rem;
}

.article-card__body {
  padding: 0.75rem 1.75rem 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-card__tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--emerald-mid);
  margin-bottom: 0.5rem;
}

.article-card__title {
  font-size: 1.25rem;
  color: var(--text-main-light);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.article-card__desc {
  font-size: 0.9rem;
  color: var(--text-muted-light);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.article-card__meta {
  margin-top: auto;
  font-size: 0.82rem;
  color: var(--text-dim-light);
  display: flex;
  justify-content: space-between;
}

/* Footer */
.site-footer {
  background: #050811;
  color: #94a3b8;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 5rem 0 2.5rem;
  font-size: 0.9rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer__about p {
  margin-top: 1rem;
  font-size: 0.88rem;
  line-height: 1.65;
  color: #64748b;
}

.footer__col-title {
  color: #ffffff;
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
}

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

.footer__links a {
  color: #94a3b8;
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--energy-green-light);
}

.footer__contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.footer__contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--energy-green);
  flex-shrink: 0;
}

.footer__bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
}

.footer__legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer__disclaimer {
  margin-top: 1.5rem;
  font-size: 0.76rem;
  color: #475569;
  line-height: 1.5;
}

/* DSGVO Cookie Consent Banner & Modal */
.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  max-width: 520px;
  background: var(--primary-navy-light);
  border: 1px solid rgba(36, 201, 126, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  z-index: 1000;
  display: none;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.cookie-banner.show {
  display: block;
}

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.cookie-banner__title {
  color: #ffffff;
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.cookie-banner__text {
  font-size: 0.84rem;
  color: #94a3b8;
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.cookie-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* Modal Popup Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1050;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

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

.modal-box {
  background: var(--primary-navy-light);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.2rem;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
  color: #ffffff;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  padding: 0.4rem;
}
.modal-close:hover {
  color: #ffffff;
}

/* Media Queries & Responsive */
@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }
  .target-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }
  .topbar {
    display: none;
  }
  .nav-menu {
    display: none;
  }
  .header__cta {
    display: none;
  }
  .burger-btn {
    display: block;
  }
  .grid-2,
  .grid-3,
  .grid-4,
  .target-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }
  .compare-container {
    grid-template-columns: 1fr;
  }
  .process-timeline {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr;
  }
  .form-grid-2,
  .form-grid-3 {
    grid-template-columns: 1fr;
  }
  .segment-group {
    grid-template-columns: 1fr;
  }
  .info-stat-grid {
    grid-template-columns: 1fr;
  }
  .cta-banner {
    padding: 3rem 1.5rem;
  }
}

/* EC-BTN-104 + EC-NAV-121: Re-assert hero / CTA text-white on buttons & links.
   Uses class~= (word match) not class*= (substring) to avoid matching hover:text-white etc. */
button[class~='text-white/90'],
a[class~='text-white/90'] {
  color: rgba(255, 255, 255, 0.9);
}
button[class~='text-white/80'],
a[class~='text-white/80'] {
  color: rgba(255, 255, 255, 0.8);
}
button[class~='text-white/70'],
a[class~='text-white/70'] {
  color: rgba(255, 255, 255, 0.7);
}
button[class~='text-white/60'],
a[class~='text-white/60'] {
  color: rgba(255, 255, 255, 0.6);
}
button[class~='text-white/50'],
a[class~='text-white/50'] {
  color: rgba(255, 255, 255, 0.5);
}
button[class~='text-white/40'],
a[class~='text-white/40'] {
  color: rgba(255, 255, 255, 0.4);
}
button[class~='text-white'],
a[class~='text-white'] {
  --tw-text-opacity: 1;
  color: rgb(255 255 255 / var(--tw-text-opacity, 1));
}

/* EC-ANIM-008b / EC-ANIM-009: carousel-only override — scroll-reveal elements animate via IO in functions.php */
.scroll-fade-up:has([aria-roledescription='carousel']),
.scroll-fade-up:has([data-wpconvert-blog-filter-bar]),
.scroll-fade-left:has([aria-roledescription='carousel']),
.scroll-fade-right:has([aria-roledescription='carousel']),
.scroll-scale-in:has([aria-roledescription='carousel']) {
  opacity: 1 !important;
  transform: none !important;
}