/* ============================================================
   Документатор Cloud — Chat UI (split-screen)
   by bvmax (ООО БВМ)
   Используются brand-переменные из /static/landing/style.css
   ============================================================ */

@import url("/static/landing/style.css");

/* ============================================================
   Layout shell
   ============================================================ */

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-body);
}

.dok-shell {
  display: grid;
  grid-template-columns: minmax(320px, 35%) 1fr;
  height: calc(100vh - 56px);
  height: calc(100dvh - 56px);
  background: var(--graphite-100);
}

@media (max-width: 880px) {
  html, body { overflow: auto; }
  .dok-shell {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    height: auto;
  }
}

/* ============================================================
   Header
   ============================================================ */

.dok-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--s-6);
  height: 56px;
  padding: 0 var(--s-6);
  background: var(--paper-pure);
  border-bottom: var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.dok-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  color: var(--ink-900);
  text-decoration: none;
}
.dok-brand:hover { text-decoration: none; color: var(--ink-900); }

.dok-stamp {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--ink-900);
  border-radius: 2px;
  color: var(--ink-900);
}

.dok-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  font-family: var(--font-display);
}
.dok-brand__text strong { font-size: 15px; font-weight: 700; }
.dok-brand__by {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--graphite-500);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dok-header__project {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.dok-header__project .eyebrow { margin: 0; font-size: 10px; }
.dok-projectname {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  color: var(--ink-900);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 2px 6px;
  margin-left: -6px;
  outline: none;
  transition: border-color .15s, background .15s;
  max-width: 100%;
}
.dok-projectname:hover { border-color: var(--graphite-200); }
.dok-projectname:focus { border-color: var(--ink-700); background: var(--paper); }

.dok-header__actions {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
}

.dok-balance {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 6px 12px;
  border: var(--border);
  border-radius: 999px;
  background: var(--paper);
  cursor: pointer;
  font-family: var(--font-body);
  transition: border-color .15s, transform .15s;
}
.dok-balance:hover { border-color: var(--ink-700); }
.dok-balance:focus-visible { outline: 2px solid var(--flame-500); outline-offset: 2px; }

.dok-balance__dot {
  width: 8px; height: 8px; border-radius: 50%;
}
.dok-balance__dot--free { background: var(--warning); }
.dok-balance__dot--paid { background: var(--success); }

.dok-balance__text {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 13px;
}
.dok-balance__text strong {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink-900);
}
.dok-balance__label { color: var(--graphite-500); font-size: 12px; }

.dok-avatar { position: relative; }
.dok-avatar__btn {
  width: 32px; height: 32px;
  display: inline-grid; place-items: center;
  border-radius: 50%;
  background: var(--ink-900);
  color: var(--paper);
  border: 0;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  transition: transform .15s;
}
.dok-avatar__btn:hover { transform: scale(1.05); }
.dok-avatar__btn:focus-visible { outline: 2px solid var(--flame-500); outline-offset: 2px; }

.dok-avatar__menu {
  position: absolute;
  right: 0; top: calc(100% + 8px);
  min-width: 200px;
  background: var(--paper-pure);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card-hover);
  padding: 6px;
  display: flex;
  flex-direction: column;
}
.dok-avatar__menu a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--ink-900);
  border-radius: 6px;
}
.dok-avatar__menu a:hover { background: var(--graphite-100); text-decoration: none; }

/* ============================================================
   Chat (left pane)
   ============================================================ */

.dok-chat {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--paper-pure);
  border-right: var(--border);
}
@media (max-width: 880px) {
  .dok-chat { border-right: 0; border-bottom: var(--border); min-height: 60vh; }
}

.dok-empty {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--s-12) var(--s-6);
  max-width: 480px;
  margin: 0 auto;
}
.dok-empty__title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink-900);
  margin: 0 0 var(--s-3);
}
.dok-empty__sub {
  color: var(--graphite-500);
  font-size: 15px;
  margin: 0 0 var(--s-8);
}
.dok-empty__hint {
  margin-top: var(--s-6);
  font-size: 12px;
  color: var(--graphite-500);
}
.dok-empty__hint kbd {
  font-family: var(--font-mono);
  background: var(--graphite-100);
  border: 1px solid var(--graphite-200);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 11px;
  color: var(--ink-900);
}

.dok-chips {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.dok-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 10px 14px;
  border: var(--border);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-body);
  font-size: 14px;
  cursor: pointer;
  text-align: left;
  transition: border-color .15s, transform .15s, background .15s;
}
.dok-chip:hover {
  border-color: var(--flame-500);
  background: var(--paper-pure);
  transform: translateX(2px);
}
.dok-chip:focus-visible { outline: 2px solid var(--flame-500); outline-offset: 2px; }
.dok-chip__icon {
  color: var(--flame-600);
  font-family: var(--font-mono);
  font-weight: 700;
}
.dok-chip--upload { position: relative; cursor: pointer; }
.dok-chip__input {
  position: absolute; inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* messages list */
.dok-messages {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  scroll-behavior: smooth;
}

.dok-msg {
  display: flex;
  gap: var(--s-2);
  max-width: 92%;
  animation: dok-fade-in .25s ease-out;
}
.dok-msg--user {
  align-self: flex-end;
  flex-direction: row-reverse;
}
.dok-msg--assistant {
  align-self: flex-start;
}

.dok-msg__avatar {
  flex: 0 0 28px;
  width: 28px; height: 28px;
  border-radius: 6px;
  display: inline-grid; place-items: center;
  background: var(--ink-900);
  color: var(--paper);
}

.dok-msg__bubble {
  position: relative;
  padding: 12px 16px;
  border-radius: 14px;
  font-size: 15px;
  line-height: 1.5;
  background: #FAFAF7;
  border: 1px solid var(--graphite-200);
  color: var(--ink-900);
}
.dok-msg--user .dok-msg__bubble {
  background: var(--ink-900);
  color: var(--paper);
  border-color: var(--ink-900);
}
.dok-msg--user .dok-msg__bubble a { color: var(--flame-100); }

.dok-msg__body p { margin: 0 0 8px; }
.dok-msg__body p:last-child { margin: 0; }
.dok-msg__body ul, .dok-msg__body ol { margin: 6px 0 8px 18px; padding: 0; }
.dok-msg__body code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: rgba(14, 27, 46, 0.06);
  padding: 1px 5px;
  border-radius: 4px;
}

.dok-msg__ping {
  position: absolute;
  top: 8px; right: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--flame-500);
  box-shadow: 0 0 0 0 rgba(232, 93, 44, 0.6);
  animation: dok-ping 1.4s ease-out infinite;
}

/* composer */
.dok-composer {
  border-top: var(--border);
  background: var(--paper-pure);
  padding: var(--s-3) var(--s-4);
  flex-shrink: 0;
}
.dok-composer__input {
  width: 100%;
  min-height: 44px;
  max-height: 240px;
  border: 1px solid var(--graphite-200);
  border-radius: 12px;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink-900);
  resize: none;
  outline: none;
  background: var(--paper);
  transition: border-color .15s, box-shadow .15s;
}
.dok-composer__input:focus {
  border-color: var(--ink-700);
  box-shadow: 0 0 0 3px rgba(14, 27, 46, 0.08);
  background: var(--paper-pure);
}
.dok-composer__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--s-2);
  gap: var(--s-3);
}
.dok-composer__hint {
  font-size: 12px;
  color: var(--graphite-500);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.dok-composer__hint kbd {
  font-family: var(--font-mono);
  background: var(--graphite-100);
  border: 1px solid var(--graphite-200);
  border-radius: 4px;
  padding: 0 5px;
  font-size: 11px;
}
.dok-composer__hint--live { color: var(--flame-600); font-weight: 500; }

/* ============================================================
   Buttons
   ============================================================ */
.dok-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s, background .15s, border-color .15s, box-shadow .15s;
  text-decoration: none;
  white-space: nowrap;
}
.dok-btn:focus-visible { outline: 2px solid var(--flame-500); outline-offset: 2px; }
.dok-btn:disabled { opacity: .5; cursor: not-allowed; }

.dok-btn--primary {
  background: var(--flame-600);
  color: var(--paper);
  border-color: var(--flame-600);
}
.dok-btn--primary:hover:not(:disabled) {
  background: var(--flame-700);
  border-color: var(--flame-700);
  transform: translateY(-1px);
}

.dok-btn--ghost {
  background: var(--paper);
  color: var(--ink-900);
  border-color: var(--graphite-200);
}
.dok-btn--ghost:hover:not(:disabled) {
  border-color: var(--ink-700);
  background: var(--paper-pure);
}

.dok-btn--full { width: 100%; }

/* ============================================================
   Artifact (right pane)
   ============================================================ */

.dok-artifact {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--graphite-100);
}

.dok-artifact__head {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-4) var(--s-6);
  background: var(--paper-pure);
  border-bottom: var(--border);
}
.dok-artifact__id { display: flex; flex-direction: column; gap: 2px; }
.dok-artifact__id .eyebrow { margin: 0; }
.dok-doc-id {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-900);
}

.dok-artifact__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--flame-600);
  font-weight: 500;
}

.dok-artifact__body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: var(--s-8) var(--s-8);
  max-width: 880px;
  width: 100%;
  margin: 0 auto;
}
@media (max-width: 880px) {
  .dok-artifact__body { padding: var(--s-6) var(--s-4); }
}

.dok-doc-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--ink-900);
  margin: 0 0 var(--s-6);
  padding-bottom: var(--s-4);
  border-bottom: 2px solid var(--ink-900);
}

.dok-artifact__placeholder {
  text-align: center;
  color: var(--graphite-500);
  padding: var(--s-16) var(--s-4);
}
.dok-artifact__placeholder-stamp {
  color: var(--graphite-300);
  margin: 0 auto var(--s-4);
  display: inline-block;
}
.dok-artifact__placeholder p { margin: 4px 0; }
.dok-artifact__placeholder-sub { font-size: 13px; }

/* sections */
.dok-section {
  position: relative;
  padding: var(--s-6) 0;
  border-top: 1px solid var(--graphite-200);
  transition: background .25s;
}
.dok-section:first-of-type { border-top: 0; }

.dok-section__head {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  margin-bottom: var(--s-3);
}
.dok-section__title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink-900);
  margin: 0;
  flex: 1 1 auto;
}
.dok-section__regen {
  width: 28px; height: 28px;
  display: inline-grid; place-items: center;
  border: 1px solid var(--graphite-200);
  background: var(--paper);
  border-radius: 6px;
  cursor: pointer;
  color: var(--graphite-700);
  transition: border-color .15s, color .15s, transform .2s;
}
.dok-section__regen:hover:not(:disabled) {
  border-color: var(--flame-500);
  color: var(--flame-600);
}
.dok-section__regen:focus-visible {
  outline: 2px solid var(--flame-500);
  outline-offset: 2px;
}
.dok-section__regen:active:not(:disabled) svg { transform: rotate(-180deg); }
.dok-section__regen svg { transition: transform .35s ease; }

.dok-section__body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  color: var(--graphite-900);
}
.dok-section__body h3 {
  font-size: 17px;
  margin: var(--s-4) 0 var(--s-2);
  color: var(--ink-900);
}
.dok-section__body p { margin: 0 0 var(--s-3); }
.dok-section__body ul, .dok-section__body ol {
  margin: 0 0 var(--s-3) var(--s-6);
  padding: 0;
}
.dok-section__body li { margin-bottom: 4px; }
.dok-section__body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--s-3) 0;
  font-size: 14px;
}
.dok-section__body th, .dok-section__body td {
  border: 1px solid var(--graphite-200);
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
}
.dok-section__body th {
  background: var(--graphite-100);
  font-weight: 600;
}
.dok-section__body code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--graphite-100);
  padding: 1px 5px;
  border-radius: 3px;
}

/* state: generating (shimmer overlay) */
.dok-section--generating {
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(232, 93, 44, 0.04) 50%,
    transparent 100%);
  background-size: 200% 100%;
  animation: dok-shimmer 1.8s linear infinite;
}
.dok-section--generating .dok-section__body {
  color: var(--graphite-700);
}

.dok-section--done {
  animation: dok-fade-in .4s ease-out;
}

.dok-section--error {
  background: rgba(185, 28, 28, 0.04);
}
.dok-section--error .dok-section__title { color: var(--error); }

/* actions footer */
.dok-actions {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  padding: var(--s-4) var(--s-6);
  background: var(--paper-pure);
  border-top: var(--border);
}
@media (max-width: 880px) {
  .dok-actions { padding: var(--s-3) var(--s-4); }
  .dok-actions .dok-btn { flex: 1 1 auto; }
}

/* ============================================================
   Streaming indicator (ping)
   ============================================================ */
.dok-ping {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--flame-500);
  box-shadow: 0 0 0 0 rgba(232, 93, 44, 0.6);
  animation: dok-ping 1.4s ease-out infinite;
}

@keyframes dok-ping {
  0% { box-shadow: 0 0 0 0 rgba(232, 93, 44, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(232, 93, 44, 0); }
  100% { box-shadow: 0 0 0 0 rgba(232, 93, 44, 0); }
}

@keyframes dok-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes dok-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Modals
   ============================================================ */
.dok-modal {
  position: fixed; inset: 0;
  background: rgba(14, 27, 46, 0.55);
  display: grid;
  place-items: center;
  padding: var(--s-4);
  z-index: 50;
  backdrop-filter: blur(4px);
}
.dok-modal__panel {
  position: relative;
  background: var(--paper-pure);
  border-radius: 16px;
  padding: var(--s-8);
  max-width: 440px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(14, 27, 46, 0.3);
  max-height: 90vh;
  overflow-y: auto;
}
.dok-modal__panel--wide { max-width: 720px; text-align: center; }
.dok-modal__panel h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 var(--s-3);
  color: var(--ink-900);
}
.dok-modal__panel p { color: var(--graphite-700); margin: 0 0 var(--s-4); }
.dok-modal__close {
  position: absolute;
  top: 12px; right: 12px;
  width: 32px; height: 32px;
  border: 0;
  background: transparent;
  border-radius: 6px;
  font-size: 22px;
  color: var(--graphite-500);
  cursor: pointer;
  line-height: 1;
}
.dok-modal__close:hover { background: var(--graphite-100); color: var(--ink-900); }

.dok-modal__illu {
  display: inline-block;
  color: var(--ink-900);
  margin-bottom: var(--s-3);
}

.dok-modal__alt {
  text-align: center;
  font-size: 14px;
  margin: var(--s-4) 0 0;
}
.dok-modal__alt-btn {
  display: inline-block;
  margin-top: var(--s-4);
  background: transparent;
  border: 0;
  color: var(--graphite-500);
  cursor: pointer;
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.dok-modal__alt-btn:hover { color: var(--ink-900); }

.dok-form { display: flex; flex-direction: column; gap: var(--s-3); }
.dok-field { display: flex; flex-direction: column; gap: 4px; }
.dok-field span {
  font-size: 13px;
  font-weight: 500;
  color: var(--graphite-700);
}
.dok-field input {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 10px 12px;
  border: 1px solid var(--graphite-200);
  border-radius: 8px;
  outline: none;
  background: var(--paper);
  color: var(--ink-900);
  transition: border-color .15s, box-shadow .15s;
}
.dok-field input:focus {
  border-color: var(--ink-700);
  box-shadow: 0 0 0 3px rgba(14, 27, 46, 0.08);
}

.dok-plans {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-3);
  margin: var(--s-6) 0;
  text-align: left;
}
@media (max-width: 560px) {
  .dok-plans { grid-template-columns: 1fr; }
}
.dok-plan {
  border: 1.5px solid var(--graphite-200);
  border-radius: 12px;
  padding: var(--s-4);
  background: var(--paper);
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.dok-plan--featured {
  border-color: var(--flame-500);
  background: var(--paper-pure);
  box-shadow: 0 4px 14px rgba(232, 93, 44, 0.1);
}
.dok-plan h3 {
  font-family: var(--font-display);
  font-size: 17px;
  margin: 0;
  color: var(--ink-900);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.dok-plan__badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--flame-100);
  color: var(--flame-700);
  padding: 2px 6px;
  border-radius: 4px;
}
.dok-plan__price {
  margin: 0;
  font-size: 14px;
  color: var(--graphite-700);
}
.dok-plan__price strong {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--ink-900);
}
.dok-plan ul {
  margin: 0;
  padding-left: 18px;
  font-size: 13px;
  color: var(--graphite-700);
}
.dok-plan li { margin: 2px 0; }
.dok-plan .dok-btn { margin-top: auto; }

/* ============================================================
   Toast
   ============================================================ */
.dok-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink-900);
  color: var(--paper);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  box-shadow: var(--shadow-card-hover);
  z-index: 100;
}

/* ============================================================
   Small screens
   ============================================================ */
@media (max-width: 720px) {
  .dok-header { gap: var(--s-3); padding: 0 var(--s-3); }
  .dok-header__project { display: none; }
  .dok-balance__label { display: none; }
  .dok-empty__title { font-size: 26px; }
  .dok-artifact__body { padding: var(--s-4) var(--s-3); }
  .dok-doc-title { font-size: 22px; }
  .dok-section__title { font-size: 17px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}