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

:root {
  --primary: #E8603C;
  --primary-dark: #D04E2C;
  --primary-light: #F07A5A;
  --accent: #E8603C;
  --bg: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #fafaf8;
  --surface: #f5f4f0;
  --border: #e8e5e0;
  --border-light: #d5d2cc;
  --text: #1a1a1a;
  --text-muted: #555555;
  --text-dim: #888888;
  --white: #ffffff;
  --dark: #1a1a1a;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --shadow: 0 2px 8px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  text-decoration: none;
  color: inherit;
}

ul { list-style: none; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  padding: 12px 28px;
  box-shadow: 0 4px 12px rgba(232, 96, 60, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(232, 96, 60, 0.35);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  padding: 12px 28px;
  border: 1.5px solid var(--border-light);
}

.btn-ghost:hover {
  border-color: var(--dark);
  color: var(--dark);
}

.btn-nav {
  background: var(--dark);
  color: var(--white);
  padding: 8px 20px;
}

.btn-nav:hover {
  background: #333;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--dark);
}

.logo-icon {
  width: 36px;
  height: 36px;
}

.logo-img {
  height: 64px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--dark);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
  background: var(--bg);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: #fde8d8;
  top: -200px;
  right: -100px;
  opacity: 0.5;
}

.glow-2 {
  width: 500px;
  height: 500px;
  background: #f5e6d8;
  bottom: -150px;
  left: -100px;
  opacity: 0.4;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(232, 96, 60, 0.08);
  border: 1px solid rgba(232, 96, 60, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
  color: var(--dark);
}

.gradient-text {
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: var(--primary);
  color: var(--primary);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-number {
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--dark);
}

.stat-suffix {
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  background: var(--border);
  align-self: stretch;
}

/* ===== Trusted By ===== */
.trusted {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.trusted-label {
  text-align: center;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 32px;
}

.logo-ticker {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 15%, black 85%, transparent);
}

.logo-track {
  display: flex;
  gap: 60px;
  animation: ticker 20s linear infinite;
  width: max-content;
}

.company-logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dim);
  white-space: nowrap;
  opacity: 0.5;
  transition: var(--transition);
}

.company-logo:hover {
  opacity: 1;
  color: var(--text-muted);
}

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

/* ===== Section Headers ===== */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-header h2 {
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 550px;
  margin: 0 auto;
}

/* ===== Services ===== */
.services {
  padding: 120px 0;
  background: var(--surface);
}

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

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.service-card:hover {
  background: var(--bg-card);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card.featured {
  border-color: var(--primary);
  background: var(--white);
}

.featured-badge {
  position: absolute;
  top: -1px;
  right: 24px;
  background: var(--primary);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 0 0 8px 8px;
}

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(232, 96, 60, 0.08);
  border-radius: 12px;
  margin-bottom: 20px;
  color: var(--primary);
}

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

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-features li {
  font-size: 0.85rem;
  color: var(--text-dim);
  padding-left: 20px;
  position: relative;
}

.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

/* ===== Process ===== */
.process {
  padding: 120px 0;
  background: var(--bg);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.process-step {
  position: relative;
  padding: 0 24px;
  text-align: center;
}

.step-number {
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  line-height: 1;
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.step-line {
  position: absolute;
  top: 30px;
  right: -10%;
  width: 20%;
  height: 2px;
  background: var(--border);
  opacity: 0.6;
}

/* ===== Results ===== */
.results {
  padding: 120px 0;
  background: var(--surface);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.result-card {
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.result-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.result-number {
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1;
}

.result-suffix {
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
}

.result-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.5;
}

/* ===== Testimonials ===== */
.testimonials {
  padding: 120px 0;
  background: var(--surface);
}

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

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

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

.stars {
  color: #fbbf24;
  font-size: 1.1rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-card blockquote {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--white);
  flex-shrink: 0;
}

.testimonial-author strong {
  display: block;
  color: var(--dark);
  font-size: 0.9rem;
}

.testimonial-author span {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ===== YouTube Videos ===== */
.videos {
  padding: 120px 0;
  background: var(--surface);
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.video-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
}

.video-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.video-card:hover .play-btn {
  transform: scale(1.15);
  background: var(--primary);
  box-shadow: 0 0 20px rgba(232, 96, 60, 0.4);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

/* Unique gradient backgrounds per card instead of broken images */
.thumb-bg {
  position: absolute;
  inset: 0;
}
.thumb-bg-1 { background: linear-gradient(135deg, #f5f0eb, #e8ddd5, #d4c5b9); }
.thumb-bg-2 { background: linear-gradient(135deg, #f0ebe5, #ddd5cb, #c9bfb3); }
.thumb-bg-3 { background: linear-gradient(135deg, #ebe5df, #d8cfc5, #c4b8ab); }
.thumb-bg-4 { background: linear-gradient(135deg, #f5ece5, #e0d4c8, #ccbfb3); }
.thumb-bg-5 { background: linear-gradient(135deg, #efe8e0, #dbd0c5, #c7bab0); }
.thumb-bg-6 { background: linear-gradient(135deg, #e8e2db, #d5ccc2, #c0b5a8); }

/* Decorative grid on thumbnails */
.thumb-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
  background-size: 30px 30px;
}

/* Real thumbnail images from YouTube API */
.video-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.video-card:hover .video-thumb img {
  transform: scale(1.04);
}

.thumb-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.15);
  transition: var(--transition);
}

.video-card:hover .thumb-overlay {
  background: rgba(0, 0, 0, 0.3);
}

.play-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark);
  transition: var(--transition);
}

.play-btn svg {
  width: 22px;
  height: 22px;
  margin-left: 3px;
}

.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.75);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.03em;
}

.video-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.video-info {
  padding: 20px 22px 24px;
}

.video-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.45;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-card:hover .video-info h3 {
  color: var(--primary);
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.video-meta .dot {
  opacity: 0.5;
}

.video-skeleton {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  position: relative;
}

.video-skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.03) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.videos-error {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.videos-cta {
  text-align: center;
}

.videos-cta .btn-ghost {
  gap: 10px;
}

@media (max-width: 1024px) {
  .videos-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .videos-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Case Studies ===== */
.case-studies {
  padding: 120px 0;
  background: var(--surface);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.case-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: rgba(232, 96, 60, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
}

.case-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(232, 96, 60, 0.08);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.case-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
  line-height: 1.4;
}

.case-desc {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 24px;
}

.case-results {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
  padding: 20px;
  background: var(--surface);
  border-radius: var(--radius);
}

.case-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  text-align: center;
}

.case-stat-value {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.case-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.case-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.case-benefits li {
  font-size: 0.9rem;
  color: var(--text);
  padding-left: 24px;
  position: relative;
  line-height: 1.5;
}

.case-benefits li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.7;
}

/* ===== FAQ ===== */
.faq {
  padding: 120px 0;
  background: var(--bg);
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
  box-shadow: var(--shadow);
}

.faq-item.open {
  border-color: var(--primary);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--text-dim);
  transition: transform 0.3s ease, color 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

/* ===== ROI Calculator ===== */
.calculator {
  padding: 120px 0;
  background: var(--bg);
}

.calculator-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-lg);
}

.calculator-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.calculator-inputs h3,
.calculator-results h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 28px;
}

.calc-field {
  margin-bottom: 24px;
}

.calc-field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.calc-input-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
}

.calc-number {
  width: 90px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  -moz-appearance: textfield;
}

.calc-number::-webkit-outer-spin-button,
.calc-number::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.calc-number:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232, 96, 60, 0.1);
}

.calc-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 3px solid var(--white);
  box-shadow: 0 2px 6px rgba(232, 96, 60, 0.3);
  transition: box-shadow 0.2s ease;
}

.calc-slider::-webkit-slider-thumb:hover {
  box-shadow: 0 2px 10px rgba(232, 96, 60, 0.5);
}

.calc-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 3px solid var(--white);
  box-shadow: 0 2px 6px rgba(232, 96, 60, 0.3);
}

.calc-efficiency-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  min-width: 50px;
  text-align: center;
}

.calc-field-note {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 6px;
  line-height: 1.4;
}

.calculator-results {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 32px;
}

.calc-result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.calc-result-item:last-of-type {
  border-bottom: none;
}

.calc-result-item.highlight {
  background: rgba(232, 96, 60, 0.05);
  margin: 0 -16px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border-bottom: none;
}

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

.calc-result-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  transition: all 0.3s ease;
}

.calc-result-value.accent {
  color: var(--primary);
  font-size: 1.5rem;
}

.calc-result-value.updating {
  transform: scale(1.05);
}

.calc-savings-bar {
  margin: 24px 0;
}

.calc-bar-track {
  height: 12px;
  background: var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.calc-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 6px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.calc-bar-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.calc-bar-labels .accent {
  color: var(--primary);
  font-weight: 600;
}

.calc-cta {
  margin-top: 24px;
  width: 100%;
  text-align: center;
  justify-content: center;
}

.calc-cta-note {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
  margin-top: 10px;
}

/* ===== CTA Section ===== */
.cta {
  padding: 120px 0;
  background: var(--surface);
}

.cta-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 64px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(232, 96, 60, 0.06), transparent 70%);
  pointer-events: none;
}

/* Founding Client Banner */
.founding-banner {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(232, 96, 60, 0.06);
  border: 1px dashed var(--primary);
  border-radius: var(--radius);
  padding: 12px 24px;
  margin-bottom: 24px;
}

.founding-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  background: var(--primary);
  padding: 4px 10px;
  border-radius: 4px;
  white-space: nowrap;
}

.founding-banner p {
  font-size: 0.95rem;
  color: var(--text);
  margin: 0;
}

.cta-card h2 {
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
  position: relative;
}

.cta-card > p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 550px;
  margin: 0 auto 40px;
  position: relative;
}

.cta-form {
  max-width: 520px;
  margin: 0 auto;
  position: relative;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.cta-form input,
.cta-form select {
  width: 100%;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
  appearance: none;
}

.cta-form select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5L6 8L9 5' stroke='%23888888' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.cta-form input::placeholder,
.cta-form select {
  color: var(--text-dim);
}

.cta-form input:focus,
.cta-form select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232, 96, 60, 0.1);
}

.cta-form input[type="date"] {
  color-scheme: light;
}

.cta-form .btn {
  margin-top: 8px;
}

.form-note {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 12px;
}

/* ===== Footer ===== */
.footer {
  padding: 80px 0 32px;
  background: #1a1a1a;
  border-top: none;
  color: #cccccc;
}

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

.footer-brand p {
  margin-top: 16px;
  font-size: 0.9rem;
  color: #999999;
  max-width: 300px;
  line-height: 1.6;
}

.footer-brand .logo-img {
  filter: brightness(0) invert(1);
}

.footer-links h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #ffffff;
  margin-bottom: 20px;
}

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

.footer-links a {
  font-size: 0.9rem;
  color: #999999;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid #333333;
  font-size: 0.85rem;
  color: #777777;
}

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

.footer-legal a {
  color: #777777;
  transition: var(--transition);
}

.footer-legal a:hover {
  color: #cccccc;
}

/* ===== Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  .step-line { display: none; }
  .results-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .calculator-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cases-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 24px;
    border-left: 1px solid var(--border);
    transition: right 0.3s ease;
    box-shadow: -4px 0 20px rgba(0,0,0,0.08);
  }

  .nav-links.open {
    right: 0;
  }

  .menu-toggle {
    display: flex;
    z-index: 1001;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero h1 {
    font-size: 2.4rem;
  }

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

  .hero-stats {
    gap: 24px;
  }

  .stat-divider { display: none; }

  .services-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

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

  .cta-card {
    padding: 40px 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }

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

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

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

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

  .calculator-card {
    padding: 24px 16px;
  }

  .calculator-results {
    padding: 24px 16px;
  }

  .calc-input-wrap {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .calc-number {
    width: 100%;
  }

  .calc-result-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .calc-result-value.accent {
    font-size: 1.25rem;
  }

  .case-card {
    padding: 28px 20px;
  }

  .case-results {
    flex-direction: column;
    gap: 16px;
  }

  .founding-banner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
    padding: 16px;
  }
}