/* ==============================================
   DESIGN TOKENS — Антиэнтропия лидера
   Dark, authoritative palette for executive audience
   ============================================== */

:root {
  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;

  --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, 7rem);

  /* Colors — Dark charcoal + warm gold accent */
  --color-bg:       #0d0d0d;
  --color-surface:  #141414;
  --color-surface-2:#1a1a1a;
  --color-surface-3:#222222;
  --color-border:   #2a2a2a;
  --color-border-light: #333;

  --color-text:       #e8e4de;
  --color-text-muted: #9a958e;
  --color-text-faint: #5e5a54;

  --color-accent:     #a18b6b;
  --color-accent-hover: #c4a87a;
  --color-accent-muted: rgba(161, 139, 107, 0.15);

  --color-light-bg: #f5f2ed;
  --color-light-text: #1a1715;
  --color-light-muted: #6b655d;

  /* 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;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Layout */
  --content-max: 1120px;
  --section-padding: clamp(var(--space-16), 8vw, var(--space-32));

  /* Transition */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 300ms;
}

/* ==============================================
   GLOBAL LAYOUT
   ============================================== */

.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

.section {
  padding-block: var(--section-padding);
}

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

.section__header {
  margin-bottom: var(--space-12);
}

.section__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.1;
}

.desktop-only {
  display: none;
}
@media (min-width: 768px) {
  .desktop-only { display: inline; }
}

/* ==============================================
   BUTTONS
   ============================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: #0d0d0d;
  border: 1px solid var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-light);
}
.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ==============================================
   NAV
   ============================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration) var(--ease),
              background var(--duration) var(--ease);
}

.nav--scrolled {
  border-bottom-color: var(--color-border);
}

.nav__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.nav__links {
  display: none;
  gap: var(--space-8);
  align-items: center;
}

.nav__link {
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  transition: color var(--duration) var(--ease);
}
.nav__link:hover { color: var(--color-text); }

.nav__link--cta {
  padding: var(--space-2) var(--space-5);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font-weight: 500;
}
.nav__link--cta:hover {
  background: var(--color-accent);
  color: #0d0d0d;
}

@media (min-width: 900px) {
  .nav__links { display: flex; }
  .nav__burger { display: none !important; }
}

/* Burger */
.nav__burger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}
.nav__burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text);
  transition: all var(--duration) var(--ease);
}
.nav__burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 5px);
}
.nav__burger.active span:nth-child(2) {
  opacity: 0;
}
.nav__burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -5px);
}

/* Mobile menu */
@media (max-width: 899px) {
  .nav__links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    background: #0d0d0d;
    z-index: 9998;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 60px 24px;
    box-sizing: border-box;
    overflow-y: auto;
  }
  .nav__links.open {
    display: flex;
  }
  .nav__links .nav__link {
    font-size: 1.15rem;
    color: #fff;
    padding: 8px 0;
    text-align: center;
  }
  .nav__links .nav__link--cta {
    padding: 10px 32px;
    margin-top: 8px;
  }
  .nav__burger {
    z-index: 9999;
  }
  .nav__burger.active {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
  }
}

/* ==============================================
   HERO
   ============================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: var(--space-20) var(--space-6);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(161, 139, 107, 0.06) 0%, transparent 70%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 860px;
}

.hero__label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 400;
  line-height: 0.95;
  color: var(--color-text);
  margin-bottom: var(--space-8);
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-10);
  max-width: 600px;
  margin-inline: auto;
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-faint);
  animation: float 2.5s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ==============================================
   PROBLEM
   ============================================== */

.problem__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-10);
}

@media (min-width: 768px) {
  .problem__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.problem__text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.problem__text ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-4);
}

.problem__text li {
  position: relative;
  padding-left: var(--space-6);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.problem__text li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 1px;
  background: var(--color-accent);
}

.problem__impact-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-6);
}

.problem__cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.problem__card {
  padding: var(--space-5);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.problem__card-icon {
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.problem__card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

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

.problem__coda {
  text-align: center;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text-muted);
  max-width: 600px;
  margin-inline: auto;
  line-height: 1.5;
}

/* ==============================================
   AUDIENCE
   ============================================== */

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

@media (min-width: 768px) {
  .audience__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

.audience__yes, .audience__no {
  padding: var(--space-8);
  border-radius: var(--radius-md);
}

.audience__yes {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.audience__no {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.audience__heading {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-6);
}

.audience__heading--yes { color: var(--color-accent); }
.audience__heading--no { color: var(--color-text-faint); }

.audience__list {
  list-style: none;
  padding: 0;
}

.audience__list li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-4);
  color: var(--color-text);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.audience__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 1px;
  background: var(--color-accent);
}

.audience__list--no li {
  color: var(--color-text-muted);
}

.audience__list--no li::before {
  background: var(--color-text-faint);
}

/* ==============================================
   BEFORE / ALTERNATIVES
   ============================================== */

.before__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

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

.before__card {
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.before__card-what {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.before__card-gap {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.before__answer {
  text-align: center;
  max-width: 700px;
  margin-inline: auto;
}

.before__answer p {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-accent);
  font-style: italic;
  line-height: 1.5;
}

/* ==============================================
   METHOD
   ============================================== */

.method__content {
  max-width: 800px;
}

.method__lead {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-10);
}

.method__pillars {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}

.method__pillar {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.method__pillar-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-accent);
  font-weight: 600;
  line-height: 1;
  flex-shrink: 0;
  min-width: 2.5rem;
}

.method__pillar p {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.5;
  padding-top: 4px;
}

.method__result {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  font-style: italic;
  line-height: 1.5;
}

/* ==============================================
   STRUCTURE (12 weeks)
   ============================================== */

.structure__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.structure__meta-val {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-accent);
  font-weight: 500;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.structure__meta-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.structure__blocks {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

.structure__block {
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration) var(--ease);
}

.structure__block:hover {
  border-color: var(--color-accent);
}

.structure__block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.structure__block-num {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

.structure__block-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.structure__block-list {
  list-style: none;
  padding: 0;
}

.structure__block-list li {
  position: relative;
  padding-left: var(--space-5);
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.structure__block-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 1px;
  background: var(--color-accent);
}

/* ==============================================
   RESULTS
   ============================================== */

.results__lead {
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
  max-width: 600px;
}

.results__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

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

@media (min-width: 900px) {
  .results__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.results__item {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.results__icon {
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.results__item-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.results__item-text {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.results__coda {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text-muted);
  text-align: center;
  max-width: 600px;
  margin-inline: auto;
}

/* ==============================================
   FORMAT / STEPS
   ============================================== */

.format__steps {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 900px) {
  .format__steps {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-6);
  }
}

.format__step {
  flex: 1;
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  width: 100%;
}

.format__step-num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-accent);
  font-weight: 500;
  line-height: 1;
  margin-bottom: var(--space-4);
}

.format__step-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.format__step-duration {
  font-size: var(--text-xs);
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.format__step-list {
  list-style: none;
  padding: 0;
}

.format__step-list li {
  position: relative;
  padding-left: var(--space-5);
  margin-bottom: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.format__step-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 1px;
  background: var(--color-accent);
}

.format__step-arrow {
  color: var(--color-text-faint);
  display: none;
  align-self: center;
  flex-shrink: 0;
}

@media (min-width: 900px) {
  .format__step-arrow { display: block; }
}

/* ==============================================
   ABOUT
   ============================================== */

.about__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

@media (min-width: 768px) {
  .about__content {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.about__role {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

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

.about__help {
  margin-top: var(--space-6);
  margin-bottom: var(--space-6);
}

.about__help-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.about__help ul {
  list-style: none;
  padding: 0;
}

.about__help li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  color: var(--color-text);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.about__help li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 1px;
  background: var(--color-accent);
}

.about__quote {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text-muted);
  border-left: 2px solid var(--color-accent);
  padding-left: var(--space-6);
  margin: var(--space-8) 0;
  line-height: 1.5;
}

.about__cred-title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-4);
}

.about__cred-title + .about__cred-title,
.about__cred-list + .about__cred-title {
  margin-top: var(--space-8);
}

.about__cred-list {
  list-style: none;
  padding: 0;
}

.about__cred-list li {
  position: relative;
  padding-left: var(--space-5);
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.about__cred-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 1px;
  background: var(--color-accent);
}

/* ==============================================
   CONTACT / CTA
   ============================================== */

.section--cta {
  background: linear-gradient(
    180deg,
    var(--color-surface) 0%,
    var(--color-bg) 100%
  );
  text-align: center;
}

.contact__content {
  max-width: 640px;
  margin: 0 auto;
}

.contact__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  line-height: 1.2;
}

.contact__text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
  line-height: 1.7;
}

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

/* ==============================================
   FOOTER
   ============================================== */

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

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

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

.footer__attr {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  transition: color var(--duration) var(--ease);
}
.footer__attr:hover { color: var(--color-text-muted); }

/* ==============================================
   SCROLL REVEAL
   ============================================== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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


/* About Photo */
.about__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}
.about__photo {
  position: relative;
  border-radius: 16px;
  padding: 2px;
  background: linear-gradient(180deg, rgba(201, 169, 110, 0.6) 0%, rgba(201, 169, 110, 0) 100%);
  overflow: hidden;
}
.about__photo img {
  width: 100%;
  height: auto;
  border-radius: 14px;
  display: block;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}
@media (max-width: 768px) {
  .about__content {
    grid-template-columns: 1fr;
  }
  .about__photo {
    width: 100%;
    padding: 0;
    background: none;
  }
  .about__photo img {
    width: 100%;
    border-radius: 14px;
  }
}