/* ── Fonts ── */
/* Cabinet Grotesk for display, Satoshi for body — bold/modern/tech consulting feel */

/* ── Design Tokens ── */
:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;
}

/* ── Light Mode (Default) ── */
:root, [data-theme="light"] {
  --color-bg:             #0C0B09;
  --color-surface:        #141311;
  --color-surface-2:      #1A1917;
  --color-border:         #2A2926;
  --color-text:           #E8E6E1;
  --color-text-muted:     #9B9A95;
  --color-text-faint:     #5A5957;
  --color-primary:        #D4A24C;
  --color-primary-hover:  #E8B85E;
  --color-primary-active: #C4922C;
  --color-teal:           #2DBDC5;
  --color-teal-hover:     #3FD0D8;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.5);
}

/* Dark executive aesthetic — this IS the primary theme for a consulting site targeting CEOs */
[data-theme="dark"] {
  --color-bg:             #0C0B09;
  --color-surface:        #141311;
  --color-surface-2:      #1A1917;
  --color-border:         #2A2926;
  --color-text:           #E8E6E1;
  --color-text-muted:     #9B9A95;
  --color-text-faint:     #5A5957;
  --color-primary:        #D4A24C;
  --color-primary-hover:  #E8B85E;
  --color-primary-active: #C4922C;
  --color-teal:           #2DBDC5;
  --color-teal-hover:     #3FD0D8;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.5);
}

/* Light alt mode */
[data-theme="light-alt"] {
  --color-bg:             #F7F6F2;
  --color-surface:        #FFFFFF;
  --color-surface-2:      #F0EFEB;
  --color-border:         #D4D1CA;
  --color-text:           #1A1918;
  --color-text-muted:     #6B6A65;
  --color-text-faint:     #9B9A95;
  --color-primary:        #B8892E;
  --color-primary-hover:  #9A7326;
  --color-primary-active: #C49A3A;
  --color-teal:           #0C8E95;
  --color-teal-hover:     #0A7A80;
  --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 80 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 80 / 0.12);
}

/* ── Global Styles ── */
body {
  background: var(--color-bg);
  color: var(--color-text);
}

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* ── Header ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: var(--space-4) 0;
  background: oklch(from var(--color-bg) l c h / 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.06);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
}

.header__logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}

.header__logo-accent {
  color: var(--color-primary);
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .header__nav { display: flex; }
}

.header__nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
}

.header__nav a:hover {
  color: var(--color-text);
}

.header__cta {
  display: none;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-bg);
  background: var(--color-primary);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  text-decoration: none;
}

.header__cta:hover {
  background: var(--color-primary-hover);
}

@media (min-width: 768px) {
  .header__cta { display: inline-block; }
}

/* Mobile menu button */
.header__mobile-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .header__mobile-btn { display: none; }
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  background: var(--color-bg);
  padding: var(--space-8) var(--space-4);
  flex-direction: column;
  gap: var(--space-6);
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu__close {
  align-self: flex-end;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu a:hover {
  color: var(--color-primary);
}

/* ── Hero Section ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--space-32) 0 var(--space-16);
}

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

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    oklch(from var(--color-bg) l c h / 0.6) 0%,
    oklch(from var(--color-bg) l c h / 0.3) 40%,
    oklch(from var(--color-bg) l c h / 0.7) 80%,
    var(--color-bg) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-6);
}

.hero__tag::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-6);
}

.hero__title-accent {
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-bg);
  background: var(--color-primary);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  min-height: 48px;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px oklch(from var(--color-primary) l c h / 0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  min-height: 48px;
}

.btn-secondary:hover {
  border-color: var(--color-text-muted);
  background: oklch(from var(--color-text) l c h / 0.05);
}

/* ── Social Proof Bar ── */
.proof-bar {
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--color-border);
}

.proof-bar__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

.proof-bar__label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.proof-bar__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  text-align: center;
  width: 100%;
  max-width: 700px;
}

@media (min-width: 768px) {
  .proof-bar__stats { grid-template-columns: repeat(4, 1fr); }
}

.proof-stat__number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
}

.proof-stat__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ── Services Section ── */
.services {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: clamp(var(--space-10), 4vw, var(--space-16));
}

.section-tag {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-teal);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

/* Pricing Cards */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .pricing-grid { grid-template-columns: repeat(3, 1fr); }
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card--featured {
  border-color: var(--color-primary);
  background: linear-gradient(
    to bottom,
    oklch(from var(--color-primary) l c h / 0.06),
    var(--color-surface) 40%
  );
}

.pricing-card--featured::before {
  content: 'Most Popular';
  position: absolute;
  top: calc(-1 * var(--space-3));
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-bg);
  background: var(--color-primary);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.pricing-card__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.pricing-card__amount {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
}

.pricing-card__period {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.pricing-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.6;
  flex-grow: 1;
}

.pricing-card__features {
  list-style: none;
  margin-bottom: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.pricing-card__features li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.pricing-card__features li::before {
  content: '→';
  color: var(--color-primary);
  font-weight: 600;
  flex-shrink: 0;
}

.pricing-card__cta {
  display: block;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pricing-card__cta--primary {
  color: var(--color-bg);
  background: var(--color-primary);
}

.pricing-card__cta--primary:hover {
  background: var(--color-primary-hover);
}

.pricing-card__cta--secondary {
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.pricing-card__cta--secondary:hover {
  border-color: var(--color-text-muted);
}

/* ── How It Works ── */
.how-it-works {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
}

.step {
  text-align: center;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: oklch(from var(--color-primary) l c h / 0.12);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
}

.step__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.step__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 300px;
  margin-inline: auto;
}

/* ── About / Proof Section ── */
.about {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 768px) {
  .about__grid { grid-template-columns: 1fr 1fr; }
}

.about__content {}

.about__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.about__text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}

.about__credentials {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.credential {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.credential__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-teal);
}

.about__visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.about__stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
}

.about__stat-card:nth-child(2) {
  transform: translateY(var(--space-6));
}

.about__stat-card:nth-child(3) {
  transform: translateY(calc(-1 * var(--space-6)));
}

.about__stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.about__stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ── CTA Section ── */
.cta-section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  text-align: center;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.cta-section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

.cta-section__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 500px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.cta-section__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

/* ── Footer ── */
.footer {
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer__brand {}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.footer__logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 300px;
}

.footer__links {
  display: flex;
  gap: var(--space-8);
}

.footer__col-title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.footer__col-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__col-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer__col-links a:hover {
  color: var(--color-text);
}

.footer__bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__attribution {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__attribution a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer__attribution a:hover {
  color: var(--color-text);
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Theme Toggle ── */
.theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-text-muted);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: oklch(from var(--color-text) l c h / 0.06);
}