/* ========================================
   Roomix.pro - Sections (Header, Footer, все секции)
   ======================================== */

/* ===== HEADER ===== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--color-background);
  box-shadow: var(--shadow-sm);
  z-index: 100;
  padding: var(--space-4) 0;
  transition: all var(--transition-base);
}

.site-header--scrolled {
  background: rgba(245, 240, 232, 0.95);
  backdrop-filter: blur(10px);
}

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

.site-header__logo {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-header__logo:hover {
  color: var(--color-blue-accent);
}

/* Навигация */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-nav__list {
  display: flex;
  gap: var(--space-5);
}

.site-nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.site-nav__link:hover,
.site-nav__link--active {
  color: var(--color-text-primary);
}

.site-nav__link:hover::after,
.site-nav__link--active::after {
  width: 100%;
}

/* Бургер-меню */
.burger-menu {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.burger-menu__line {
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.burger-menu--active .burger-menu__line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.burger-menu--active .burger-menu__line:nth-child(2) {
  opacity: 0;
}

.burger-menu--active .burger-menu__line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Мобильное меню */
.mobile-nav {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-background);
  padding: var(--space-6);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-nav--active {
  opacity: 1;
  visibility: visible;
}

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

.mobile-nav__link {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-primary);
  text-decoration: none;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition-fast);
}

.mobile-nav__link:hover,
.mobile-nav__link--active {
  color: var(--color-blue-accent);
}

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

.site-footer {
  background: var(--color-text-primary);
  color: var(--color-background);
  padding: var(--space-5) 0;
  text-align: center;
}

.site-footer__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.site-footer__copyright {
  font-size: var(--text-sm);
  opacity: 0.8;
}

/* ========================================
   SECTION 1: HERO
   ======================================== */

.section-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: calc(var(--space-16) + 60px) var(--container-padding) var(--space-8);
  position: relative;
  background: var(--color-background);
}

.section-hero__content {
  max-width: 800px;
}

.section-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-5);
}

.section-hero__subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 600px;
  margin: 0 auto;
}

.section-hero__illustration {
  margin-top: var(--space-8);
  margin-left: auto;
  margin-right: auto;
  max-width: 600px;
  width: 100%;
}

.section-hero__partners {
  margin-top: auto;
  padding-top: var(--space-10);
}

/* ========================================
   SECTION 2: PROBLEM
   ======================================== */

.section-problem {
  padding: var(--section-padding-y) 0;
  background: var(--color-background-alt);
}

.section-problem__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-problem__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-problem__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.section-problem__content {
  max-width: 800px;
  margin: 0 auto;
}

/* ========================================
   SECTION 3: FALSE PATHS
   ======================================== */

.section-false-paths {
  padding: var(--section-padding-y) 0;
  background: var(--color-background);
}

.section-false-paths__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-false-paths__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-false-paths__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.section-false-paths__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.false-path-card {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 2px solid var(--color-border);
  transition: all var(--transition-base);
}

.false-path-card:hover {
  border-color: var(--color-red);
  box-shadow: var(--shadow-md);
}

.false-path-card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
}

.false-path-card__title {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.false-path-card__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.false-path-card__section {
  margin-bottom: var(--space-3);
}

.false-path-card__section:last-child {
  margin-bottom: 0;
}

.false-path-card__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.false-path-card__label--problem {
  color: var(--color-red);
}

.false-path-card__text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ========================================
   SECTION 4: SOLUTION
   ======================================== */

.section-solution {
  padding: var(--section-padding-y) 0;
  background: var(--color-background-alt);
}

.section-solution__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-solution__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-10);
  align-items: center;
}

.section-solution__content {}

.section-solution__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: var(--leading-tight);
}

.section-solution__description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-top: var(--space-5);
}

.section-solution__illustration {
  /* Правая колонка */
}

/* ========================================
   SECTION 5: LAYER 1 (OpenProject)
   ======================================== */

.section-layer {
  padding: var(--section-padding-y) 0;
}

.section-layer--1 {
  background: var(--color-background);
}

.section-layer--2-3 {
  background: var(--color-background-alt);
}

.section-layer--4 {
  background: var(--color-background);
}

.section-layer__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-layer__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-layer__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.section-layer__product {
  font-size: var(--text-xl);
  color: var(--color-blue-accent);
  font-weight: 600;
}

.section-layer__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
}

.section-layer__features {}

.section-layer__visual {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.section-layer__grid--reversed {
  direction: rtl;
}

.section-layer__grid--reversed > * {
  direction: ltr;
}

/* ===== Layer 2-3 (StormBPMN + Camunda) ===== */

.section-layer-2-3__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.layer-column {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.layer-column__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-5);
  text-align: center;
}

.layer-column__illustration {
  margin-bottom: var(--space-5);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.layer-column__illustration svg {
  width: 100%;
  height: auto;
}

.layer-column__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.layer-column__item {
  position: relative;
  padding-left: var(--space-5);
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.layer-column__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background: var(--color-blue-accent);
  border-radius: var(--radius-full);
}

/* ========================================
   SECTION 8: HOW IT WORKS
   ======================================== */

.section-how-it-works {
  padding: var(--section-padding-y) 0;
  background: var(--color-background-alt);
}

.section-how-it-works__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-how-it-works__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-how-it-works__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.section-how-it-works__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step__number {
  width: 60px;
  height: 60px;
  background: var(--color-blue-accent);
  color: var(--color-card-bg);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  font-weight: 700;
  margin: 0 auto var(--space-4);
}

.process-step__title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.process-step__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.process-feedback {
  margin-top: var(--space-8);
  padding: var(--space-5);
  background: var(--color-card-bg);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  text-align: center;
}

.process-feedback__text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.process-feedback__text strong {
  color: var(--color-text-primary);
}

/* ========================================
   SECTION 9: BENEFITS
   ======================================== */

.section-benefits {
  padding: var(--section-padding-y) 0;
  background: var(--color-background);
}

.section-benefits__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-benefits__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-benefits__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.benefits-grid--single {
  display: flex;
  justify-content: center;
}

.benefits-grid--single .benefit-box {
  max-width: 300px;
}

/* ========================================
   SECTION 10: ROI
   ======================================== */

.section-roi {
  padding: var(--section-padding-y) 0;
  background: var(--color-background-alt);
}

.section-roi__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-roi__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-roi__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.roi-note {
  margin-top: var(--space-8);
  padding: var(--space-5);
  background: var(--color-card-bg);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  text-align: center;
}

.roi-note__text {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-primary);
}

/* ========================================
   SECTION 11: AUDIENCE
   ======================================== */

.section-audience {
  padding: var(--section-padding-y) 0;
  background: var(--color-background);
}

.section-audience__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-audience__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-audience__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.audience-column__title {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-blue-accent);
  margin-bottom: var(--space-5);
}

.audience-card {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-sm);
}

.audience-card:last-child {
  margin-bottom: 0;
}

.audience-card__title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.audience-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.audience-card__list {
  margin-top: var(--space-3);
}

.audience-card__list li {
  padding: var(--space-2) 0;
  padding-left: var(--space-5);
  position: relative;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.audience-card__list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-blue-accent);
  font-weight: 700;
}

/* ========================================
   SECTION 12: ROADMAP
   ======================================== */

.section-roadmap {
  padding: var(--section-padding-y) 0;
  background: var(--color-background-alt);
}

.section-roadmap__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-roadmap__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-roadmap__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.roadmap-item {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  border-top: 4px solid var(--color-blue-accent);
  box-shadow: var(--shadow-sm);
}

.roadmap-item__number {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-blue-accent);
  margin-bottom: var(--space-2);
}

.roadmap-item__title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.roadmap-item__period {
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.roadmap-item__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.roadmap-note {
  margin-top: var(--space-8);
  padding: var(--space-5);
  background: var(--color-card-bg);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  text-align: center;
}

.roadmap-note__text {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-primary);
}

/* ========================================
   SECTION 13: CTA
   ======================================== */

.section-cta {
  padding: var(--section-padding-y) 0;
  background: var(--color-background);
}

.section-cta__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-cta__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-10);
  align-items: center;
}

.section-cta__content {}

.section-cta__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.section-cta__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-5);
}

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

.bonus-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.bonus-item__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-blue-accent);
  margin-top: 2px;
}

.bonus-item__text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.bonus-item__highlight {
  font-weight: 600;
  color: var(--color-text-primary);
}

.section-cta__action {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* ========================================
   АДАПТИВНОСТЬ
   ======================================== */

/* Tablet landscape */
@media (max-width: 1024px) {
  .section-false-paths__grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .section-solution__grid {
    grid-template-columns: 1fr;
  }

  .section-solution__illustration {
    order: 1;
    max-width: 500px;
    margin: var(--space-8) auto 0;
  }

  .section-layer__grid {
    grid-template-columns: 1fr;
  }

  .section-layer__grid--reversed {
    direction: ltr;
  }

  .section-layer__visual {
    order: -1;
    max-width: 500px;
    margin: 0 auto var(--space-8);
  }

  .section-layer-2-3__grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

/* Tablet portrait */
@media (max-width: 768px) {
  .site-nav__list {
    display: none;
  }

  .burger-menu {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }

  .section-hero {
    min-height: auto;
    padding: calc(var(--space-12) + 60px) var(--container-padding) var(--space-8);
  }

  .section-hero__title {
    font-size: var(--text-3xl);
  }

  .section-hero__subtitle {
    font-size: var(--text-lg);
  }

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

  .section-cta__action {
    align-items: center;
    text-align: center;
  }

  .btn-cta {
    width: 100%;
    max-width: 320px;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .process-steps {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .partners__logo {
    height: 24px;
  }
}