/* ============================================================
   PICHI AI — Components
   Buttons · Cards · Nav · Badges · Inputs · Tags
   ============================================================ */

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

/* Кнопки — единый стиль с /managers (.mgr-btn): индиго-градиент primary,
   светлый secondary, радиус 13px. */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: 13px;
  padding: 16px 30px;
  cursor: pointer;
  text-decoration: none;
  transition:
    background 0.18s ease,
    border-color 0.18s ease,
    transform 0.18s ease,
    box-shadow 0.18s ease,
    color 0.18s ease;
  -webkit-font-smoothing: antialiased;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* Primary — индиго-градиент (как .mgr-btn--primary) */
.btn--primary {
  color: #fff;
  background: linear-gradient(180deg, #4d4ab8, #36338c);
  border-color: #322f86;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    0 12px 24px -10px rgba(45, 40, 90, 0.55);
}

.btn--primary:hover {
  background: linear-gradient(180deg, #5754c4, #3a3796);
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 16px 30px -10px rgba(45, 40, 90, 0.6);
  color: #fff;
}

.btn--primary:active {
  transform: translateY(0);
}

/* Secondary — светлая «кнопка-стекло» (как .mgr-btn--secondary) */
.btn--secondary {
  color: var(--text-primary);
  background: linear-gradient(180deg, #ffffff, #f7f3ec);
  border: 1px solid #e0d9cc;
  padding: 15px 26px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 6px 16px -10px rgba(45, 40, 90, 0.3);
}

.btn--secondary:hover {
  transform: translateY(-1px);
  border-color: #c9bfae;
  color: var(--text-primary);
  background: linear-gradient(180deg, #ffffff, #f3eee5);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 10px 22px -12px rgba(45, 40, 90, 0.35);
}

.btn--secondary:active {
  transform: translateY(0);
}

/* Ghost */
.btn--ghost {
  color: #3f3d9e;
  background: transparent;
  border-color: transparent;
  padding: 14px 20px;
}

.btn--ghost:hover {
  color: #29276e;
  background: rgba(63, 61, 158, 0.08);
}

/* Sizes */
.btn--lg {
  font-size: 18px;
  padding: 18px 34px;
}

.btn--sm {
  font-size: 15px;
  padding: 11px 20px;
  border-radius: 11px;
}

/* Icon-only */
.btn--icon {
  padding: 12px;
  width: 44px;
  height: 44px;
}

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

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: 64px;
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--dur-normal) var(--ease-default),
              border-color var(--dur-normal) var(--ease-default),
              box-shadow var(--dur-normal) var(--ease-default);
}

.nav.is-scrolled {
  background: var(--nav-blur-bg);
  backdrop-filter: var(--nav-blur-filter);
  -webkit-backdrop-filter: var(--nav-blur-filter);
  border-bottom: 1px solid var(--nav-blur-border);
  box-shadow: var(--shadow-xs);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--page-gutter);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.nav__logo img,
.nav__logo svg {
  height: 28px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  position: relative;
  font-size: 14px;
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  padding: 6px 12px;
  text-decoration: none;
  transition: color var(--dur-normal) var(--ease-default);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 12px;
  right: 12px;
  height: 1px;
  background: var(--color-primary-500);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur-deliberate) var(--ease-expressive);
}

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

.nav__link:hover::after {
  transform: scaleX(1);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__actions .nav__lang { display: none; }
}

.nav__link.is-active { color: var(--text-primary); }
.nav__link.is-active::after { transform: scaleX(1); }

/* ── Solutions dropdown ── */
.nav__item { position: relative; display: flex; align-items: center; }

.nav__link--menu {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.nav__caret {
  transition: transform var(--dur-normal) var(--ease-default);
}

.nav__item--has-menu:hover .nav__caret,
.nav__item--has-menu.is-open .nav__caret {
  transform: rotate(180deg);
}

.nav__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 230px;
  margin-top: 8px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--dur-normal) var(--ease-default),
              transform var(--dur-normal) var(--ease-default),
              visibility var(--dur-normal) var(--ease-default);
  z-index: var(--z-sticky);
}

.nav__item--has-menu:hover .nav__dropdown,
.nav__item--has-menu.is-open .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-link {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: var(--fw-medium);
  /* глиняный акцент в выпадающем меню (orange-500 — читаемый на светлом фоне) */
  color: var(--color-orange-500);
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease-default),
              color var(--dur-fast) var(--ease-default);
}

.nav__dropdown-link:hover {
  background: var(--color-orange-50);
  color: var(--color-orange-600);
}

/* ── Language selector pill (mirrors /transcribe .lang-toggle) ── */
.nav__lang {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  padding: 7px 14px;
  min-width: 48px;
  text-align: center;
  background: var(--surface-default);
  text-decoration: none;
  transition: border-color var(--dur-normal) var(--ease-default),
              color var(--dur-normal) var(--ease-default);
}

.nav__lang:hover {
  border-color: var(--color-primary-500);
  color: var(--color-primary-500);
}

/* ── Mobile menu panel ── */
.nav__mobile {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: calc(var(--z-sticky) - 1);
  background: #120F0D;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-6) var(--page-gutter) var(--space-8);
  flex-direction: column;
  gap: var(--space-1);
  transform: translateY(-8px);
  opacity: 0;
  transition: opacity var(--dur-deliberate) var(--ease-default),
              transform var(--dur-deliberate) var(--ease-default);
  pointer-events: none;
}

.nav__mobile.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.nav__mobile-link {
  display: block;
  font-size: 16px;
  font-weight: var(--fw-medium);
  color: rgba(255, 255, 255, 0.75);
  padding: 12px 0;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color var(--dur-normal) var(--ease-default);
}

.nav__mobile-link:hover { color: #FFFFFF; }

.nav__mobile-link--sub {
  padding-left: 16px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.55);
}

.nav__mobile-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
  flex-wrap: wrap;
}

.nav__mobile .btn--secondary {
  color: rgba(255, 255, 255, 0.75);
  border-color: rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
  .nav__mobile { display: flex; }
}

/* ================================================================
   CARDS
   ================================================================ */

.card {
  background: var(--surface-default);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-subtle);
  padding: var(--card-padding);
  transition:
    transform var(--dur-deliberate) var(--ease-settle),
    box-shadow var(--dur-deliberate) var(--ease-settle);
}

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

.card:active {
  transform: translateY(-2px);
  transition-duration: var(--dur-fast);
  transition-timing-function: var(--ease-sharp);
}

.card--elevated {
  box-shadow: var(--shadow-card);
  border: none;
}

.card--flat {
  border: 1px solid var(--border-subtle);
  box-shadow: none;
}

.card--dark {
  background: var(--surface-dark);
  border-color: var(--border-dark-muted);
  color: var(--text-inverse);
}

/* Feature card */
.feature-card {
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: var(--card-padding);
  transition:
    transform var(--dur-deliberate) var(--ease-settle),
    box-shadow var(--dur-deliberate) var(--ease-settle);
}

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

.feature-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-50);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
  color: var(--color-primary-500);
}

.feature-card__title {
  font-size: var(--text-h5);
  font-weight: var(--fw-medium);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.feature-card__body {
  font-size: var(--text-body);
  line-height: var(--lh-loose);
  color: var(--text-muted);
}

/* Testimonial card */
.testimonial-card {
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: var(--card-padding);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  transition:
    transform var(--dur-deliberate) var(--ease-settle),
    box-shadow var(--dur-deliberate) var(--ease-settle);
}

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

.testimonial-card__quote {
  font-size: var(--text-body-lg);
  line-height: var(--lh-loose);
  color: var(--text-secondary);
  flex: 1;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-avatar);
  background: var(--color-neutral-100);
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
}

.testimonial-card__name {
  font-size: 14px;
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  line-height: 1.3;
}

.testimonial-card__role {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.3;
}

/* Stat card */
.stat-card {
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.stat-card__value {
  font-size: var(--text-metric);
  font-weight: var(--fw-regular);
  line-height: 1.0;
  letter-spacing: var(--ls-tightest);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.stat-card__delta {
  font-size: var(--text-label-lg);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-green-500);
  margin-bottom: var(--space-3);
}

.stat-card__label {
  font-size: var(--text-body);
  color: var(--text-muted);
  line-height: var(--lh-loose);
}

/* ================================================================
   BADGES & TAGS
   ================================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 11px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1;
  padding: 4px 10px;
  border-radius: var(--radius-badge);
}

.badge--primary {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
}

.badge--amber {
  background: var(--color-amber-50);
  color: var(--color-amber-600);
}

.badge--green {
  background: var(--status-success-subtle);
  color: var(--status-success);
}

.badge--neutral {
  background: var(--color-neutral-100);
  color: var(--text-secondary);
}

.tag {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: var(--fw-regular);
  line-height: 1;
  padding: 6px 14px;
  border-radius: var(--radius-tag);
  background: var(--color-neutral-100);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  transition: background var(--dur-fast) var(--ease-default),
              border-color var(--dur-fast) var(--ease-default);
}

.tag:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-200);
  color: var(--color-primary-600);
}

/* ================================================================
   INPUTS
   ================================================================ */

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.input-label {
  font-size: 13px;
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.input {
  width: 100%;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: var(--fw-regular);
  color: var(--text-primary);
  background: var(--surface-default);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-input);
  padding: 12px 16px;
  line-height: 1.5;
  outline: none;
  transition:
    border-color var(--dur-normal) var(--ease-default),
    box-shadow var(--dur-normal) var(--ease-default);
}

.input::placeholder {
  color: var(--text-muted);
}

.input:hover {
  border-color: var(--border-strong);
}

.input:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 2px rgba(22, 84, 240, 0.20);
}

/* Inline email subscribe */
.input-inline {
  display: flex;
  gap: 0;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-button);
  overflow: hidden;
  background: var(--surface-default);
  transition: border-color var(--dur-normal) var(--ease-default),
              box-shadow var(--dur-normal) var(--ease-default);
}

.input-inline:focus-within {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 2px rgba(22, 84, 240, 0.20);
}

.input-inline .input {
  border: none;
  border-radius: 0;
  flex: 1;
  min-width: 0;
  box-shadow: none;
}

.input-inline .btn {
  border-radius: 0;
  flex-shrink: 0;
}

/* ================================================================
   LOGO WALL
   ================================================================ */

.logo-wall {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-8) var(--space-12);
}

.logo-wall__item {
  opacity: 0.4;
  filter: grayscale(1);
  transition: opacity var(--dur-normal) var(--ease-default),
              filter var(--dur-normal) var(--ease-default);
  font-size: 15px;
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
  color: var(--text-secondary);
}

.logo-wall__item:hover {
  opacity: 0.7;
  filter: grayscale(0);
}

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

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--section-gap) auto;
}

.section-header--left {
  text-align: left;
  margin-left: 0;
  margin-right: auto;
}

.section-header__overline {
  font-size: var(--text-overline);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-primary-500);
  margin-bottom: var(--space-4);
  display: block;
}

.section-header__title {
  font-size: var(--text-h2);
  font-weight: var(--fw-regular);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--text-primary);
  margin-bottom: var(--space-5);
}

.section-header__subtitle {
  font-size: var(--text-body-lg);
  line-height: var(--lh-loose);
  color: var(--text-muted);
}

/* ================================================================
   STEP / HOW IT WORKS
   ================================================================ */

.step {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

.step__number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-avatar);
  background: var(--color-neutral-100);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
  letter-spacing: -0.01em;
  transition: background var(--dur-normal) var(--ease-default),
              color var(--dur-normal) var(--ease-default);
}

.step:hover .step__number {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  border-color: var(--color-primary-200);
}

.step__content {
  flex: 1;
  padding-top: 6px;
}

.step__title {
  font-size: var(--text-h5);
  font-weight: var(--fw-medium);
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.step__body {
  font-size: var(--text-body);
  line-height: var(--lh-loose);
  color: var(--text-muted);
}

/* ================================================================
   PRODUCT DEMO MOCKUP
   ================================================================ */

.demo-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--surface-dark);
  border: 1px solid var(--border-dark-muted);
  box-shadow: var(--shadow-2xl);
}

.demo-wrapper__inner {
  padding: var(--space-6);
}

.demo-card {
  background: var(--surface-dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.demo-metric {
  font-size: clamp(28px, 3vw, 48px);
  font-weight: var(--fw-regular);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--text-inverse);
}

.demo-metric__label {
  font-size: 12px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-on-dark-muted);
  margin-bottom: var(--space-2);
}

.demo-metric__delta {
  font-size: 13px;
  font-weight: var(--fw-medium);
  color: var(--color-green-400);
  margin-top: var(--space-2);
}

/* ================================================================
   SKELETON LOADING
   ================================================================ */

.skeleton {
  background: linear-gradient(90deg, var(--color-neutral-100) 25%, var(--color-neutral-50) 50%, var(--color-neutral-100) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.6s infinite;
  border-radius: var(--radius-xs);
}

@keyframes skeleton-shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ================================================================
   DIVIDER WITH LABEL
   ================================================================ */

.divider-label {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.divider-label::before,
.divider-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}