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

:root {
  --color-bg: #FAF8F5;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F5F2EE;
  --color-accent: #7B5EA7;
  --color-accent-light: #F3EFF8;
  --color-accent-dark: #5C4080;
  --color-text: #1C1525;
  --color-text-muted: #6B6474;
  --color-border: #E5E0DA;
  --color-dark-bg: #1C1525;
  --color-dark-text: #F5F2EE;

  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-sans: 'DM Sans', system-ui, -apple-system, sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 100px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ===== Container ===== */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ===== Typography ===== */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.35rem;
}

h1 em, h2 em {
  font-style: italic;
}

.section-label {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  padding: 0.85rem 2rem;
  background: var(--color-accent);
  color: #fff;
}

.btn:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.0625rem;
}

.btn-sm {
  padding: 0.55rem 1.4rem;
  font-size: 0.875rem;
}

.btn-light {
  background: #fff;
  color: var(--color-accent-dark);
}

.btn-light:hover {
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-links a:not(.btn) {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.nav-links a:not(.btn):hover {
  color: var(--color-accent);
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s;
}

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

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(72px + var(--space-xl)) var(--space-md) var(--space-xl);
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-accent-light) 100%);
}

.hero-content {
  max-width: 800px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

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

.stat-number {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  color: var(--color-accent);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
}

.hero h1 {
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.hero-sub {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-md);
  line-height: 1.7;
}

/* ===== Logos Section ===== */
.logos-section {
  padding: var(--space-lg) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.logos-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.logo-placeholder {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-border);
  padding: 1.25rem 2rem;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
}

/* ===== Services ===== */
.services-section {
  padding: var(--space-2xl) 0;
  text-align: center;
}

.services-section h2 {
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: left;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 24px rgba(123, 94, 167, 0.08);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.feature-card h3 {
  margin-bottom: var(--space-sm);
}

.feature-card ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.feature-card li {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  padding-left: 1.25rem;
  position: relative;
}

.feature-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.5;
}

/* ===== Differentiator ===== */
.diff-section {
  padding: var(--space-2xl) 0;
  background: var(--color-surface-alt);
  text-align: center;
}

.diff-section h2 {
  max-width: 500px;
  margin: 0 auto var(--space-xl);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  max-width: 800px;
  margin: 0 auto;
}

.comparison-card {
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: left;
}

.comparison-card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.2rem;
}

.comparison-card li {
  font-size: 0.9375rem;
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.comparison-them {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.comparison-them li::before {
  content: '✕';
  position: absolute;
  left: 0;
  color: #c9a0a0;
  font-size: 0.8rem;
  font-weight: 700;
}

.comparison-us {
  background: var(--color-accent);
  color: #fff;
}

.comparison-us h3 {
  color: #fff;
}

.comparison-us li::before {
  content: '✓';
  position: absolute;
  left: 0;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.8);
}

/* ===== Process ===== */
.process-section {
  padding: var(--space-2xl) 0;
  text-align: center;
}

.process-section h2 {
  max-width: 500px;
  margin: 0 auto var(--space-xl);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.step {
  text-align: left;
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.step-number {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-accent);
  opacity: 0.5;
  display: block;
  margin-bottom: var(--space-xs);
}

.step h3 {
  margin-bottom: var(--space-xs);
}

.step p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===== Results / Testimonials ===== */
.results-section {
  padding: var(--space-2xl) 0;
  background: var(--color-dark-bg);
  color: var(--color-dark-text);
  text-align: center;
}

.results-section .section-label {
  color: rgba(255, 255, 255, 0.5);
}

.results-section h2 {
  max-width: 500px;
  margin: 0 auto var(--space-xl);
  color: #fff;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: left;
}

.testimonial-card blockquote p {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-style: italic;
  line-height: 1.6;
  margin-bottom: var(--space-sm);
  color: rgba(255, 255, 255, 0.9);
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.testimonial-author strong {
  font-size: 0.9375rem;
  color: #fff;
}

.testimonial-author span {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ===== FAQ ===== */
.faq-section {
  padding: var(--space-2xl) 0;
  text-align: center;
}

.faq-section h2 {
  max-width: 500px;
  margin: 0 auto var(--space-xl);
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
  text-align: left;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.0625rem;
  padding: 1.25rem 2rem 1.25rem 0;
  cursor: pointer;
  list-style: none;
  position: relative;
  color: var(--color-text);
  transition: color 0.2s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.35rem;
  font-weight: 300;
  color: var(--color-accent);
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item summary:hover {
  color: var(--color-accent);
}

.faq-item p {
  padding: 0 0 1.25rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: var(--space-2xl) 0;
  background: var(--color-accent);
  color: #fff;
  text-align: center;
}

.cta-section h2 {
  color: #fff;
  max-width: 550px;
  margin: 0 auto var(--space-sm);
}

.cta-section p {
  max-width: 500px;
  margin: 0 auto var(--space-md);
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.0625rem;
}

/* ===== Footer ===== */
.footer {
  padding: var(--space-lg) 0 var(--space-md);
  background: var(--color-dark-bg);
  color: var(--color-dark-text);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-brand p {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 0.5rem;
  max-width: 300px;
}

.footer-brand .nav-logo {
  color: #fff;
}

.footer-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #fff;
}

.footer-copy {
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copy p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.3);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .features-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

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

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

  .hero-stats {
    gap: var(--space-md);
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    gap: var(--space-sm);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .hero {
    padding-top: calc(72px + var(--space-lg));
    min-height: auto;
    padding-bottom: var(--space-xl);
  }
}