:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #667085;
  --primary: #1250e6;
  --primary-dark: #0d46d0;
  --purple: #6f2dbd;
  --blue-dark: #1e3a8a;
  --yellow: #ffc107;
  --green: #16a34a;
  --blue-soft: #e8f0ff;
  --border: #e8eaf2;
  --shadow-soft: 0 6px 18px rgba(41, 47, 76, 0.06);
  --error-bg: #fef2f2;
  --error-text: #b42318;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}

body {
  min-height: 100vh;
}

a,
button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

a {
  text-decoration: none;
}

.infographic-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 24;
  padding: 18px 16px 14px;
  background:
    radial-gradient(circle at top right, rgba(18, 80, 230, 0.16), transparent 32%),
    linear-gradient(180deg, #ffffff 0%, #f7f8fd 100%);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: grid;
  gap: 14px;
}

.topbar__nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.topbar__nav .back-link {
  justify-self: start;
}

.topbar__nav .support-link {
  justify-self: end;
}

.brand--centered {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 0;
}

.brand__logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(18, 80, 230, 0.18);
  flex-shrink: 0;
}

.brand__name {
  font-size: 18px;
  font-weight: 800;
  white-space: nowrap;
}

.title-strip {
  padding: 14px 16px;
  border-radius: 18px;
  background: #eceff3;
  border: 1px solid #dde3eb;
}

.title-strip h1 {
  margin: 0;
  color: var(--primary-dark);
  font-size: 22px;
  line-height: 1.1;
}

.infographic-main {
  padding: 18px 16px 124px;
  display: grid;
  gap: 18px;
}

.generator-panel,
.preview-panel {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-soft);
}

.generator-panel {
  padding: 18px;
}

.generator-form {
  display: grid;
  gap: 14px;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field span,
.form-hint {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: 1px solid #d0d5dd;
  border-radius: 14px;
  background: #fff;
  padding: 13px 14px;
  outline: none;
}

.form-field textarea {
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(18, 80, 230, 0.12);
}

.form-hint {
  margin: -4px 0 0;
  letter-spacing: 0;
  text-transform: none;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 15px;
  font-weight: 800;
}

.form-check input {
  width: 20px;
  height: 20px;
  accent-color: var(--primary);
}

.form-hint.is-warning {
  color: #b54708;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn-primary,
.btn-secondary {
  border: none;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 800;
  padding: 14px 18px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 24px rgba(18, 80, 230, 0.22);
}

.btn-secondary {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--primary-dark);
}

.btn-primary:disabled,
.btn-secondary:disabled {
  opacity: 0.7;
  cursor: wait;
}

.screen-message {
  margin-top: 14px;
  border-radius: 16px;
  padding: 14px 16px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
}

.screen-message--error {
  background: var(--error-bg);
  color: var(--error-text);
}

.screen-message--success {
  background: #ecfdf3;
  color: #027a48;
}

.preview-panel {
  padding: 16px;
  overflow: auto;
}

.infographic-canvas-wrap {
  width: min(100%, 540px);
  margin: 0 auto;
}

.infographic-card {
  position: relative;
  width: 1080px;
  height: 1920px;
  transform: scale(var(--preview-scale, 0.45));
  transform-origin: top left;
  margin-bottom: calc(1920px * var(--preview-scale, 0.45) - 1920px);
  overflow: hidden;
  border-radius: 34px;
  background: #fff;
  border: 12px solid #151515;
  box-shadow: 0 22px 48px rgba(31, 36, 48, 0.14);
  padding: 86px 58px 120px;
}

.infographic-card.is-exporting {
  transform: none;
  margin-bottom: 0;
  background: #fff;
  box-shadow: none;
}

.export-host {
  position: fixed;
  left: -10000px;
  top: 0;
  width: 1080px;
  height: 1920px;
  overflow: hidden;
  background: #fff;
  pointer-events: none;
  z-index: 0;
}

.notebook-spiral {
  position: absolute;
  top: 0;
  left: 78px;
  right: 78px;
  height: 64px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.notebook-spiral span {
  width: 18px;
  height: 56px;
  border-radius: 999px;
  background: linear-gradient(90deg, #111, #656565 42%, #111);
  box-shadow: 0 6px 8px rgba(15, 23, 42, 0.25);
}

.info-header {
  display: grid;
  gap: 10px;
  text-align: center;
}

.info-header span {
  justify-self: center;
  max-width: 620px;
  border-radius: 999px;
  background: var(--purple);
  color: #fff;
  padding: 10px 36px;
  font-size: 28px;
  font-weight: 900;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.info-header h2 {
  margin: 0;
  color: var(--purple);
  font-size: 70px;
  line-height: 0.98;
}

.infographic-card.is-uppercase {
  text-transform: uppercase;
}

.hero-block {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 540px minmax(0, 1fr);
  gap: 28px;
  align-items: stretch;
}

.hero-image {
  min-height: 360px;
  height: 360px;
  aspect-ratio: 3 / 2;
  border-radius: 30px;
  background: linear-gradient(135deg, #f8fbff, #eef4ff);
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  border: 2px solid #d8e3ff;
  overflow: hidden;
}

.hero-image img,
.hero-image__placeholder {
  width: 100%;
  height: 100%;
  min-height: 360px;
  display: block;
}

.hero-image img {
  display: none;
}

.hero-image.has-image {
  background-color: #f8fbff;
  background-size: contain;
}

.hero-image__placeholder {
  display: grid;
  place-items: center;
  color: var(--blue-dark);
  font-size: 34px;
  font-weight: 900;
}

.hero-image__placeholder[hidden] {
  display: none;
}

.context-box {
  position: relative;
  margin: 0;
  border-radius: 30px;
  background: #f8fbff;
  border: 2px solid #bfdbfe;
  padding: 56px 28px 24px;
}

.context-box h3 {
  position: absolute;
  top: -18px;
  left: 32px;
  margin: 0;
  border-radius: 999px;
  background: var(--blue-dark);
  color: #fff;
  padding: 9px 26px;
  font-size: 24px;
  line-height: 1;
  font-weight: 900;
}

.context-box p {
  margin: 0;
  color: #1f2937;
  font-size: 25px;
  line-height: 1.22;
  font-weight: 700;
}

.yellow-strip {
  margin-top: 22px;
  border-radius: 999px;
  background: var(--yellow);
  color: #422006;
  padding: 15px 28px;
  text-align: center;
  font-size: 27px;
  font-weight: 900;
}

.challenge-section {
  margin-top: 34px;
  border: 2px solid #e8dcff;
  border-radius: 30px;
  padding: 20px 14px 15px;
}

.challenge-section h3 {
  width: fit-content;
  margin: -50px auto 18px;
  border-radius: 999px;
  background: var(--purple);
  color: #fff;
  padding: 12px 34px;
  font-size: 27px;
  line-height: 1;
}

.challenge-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.challenge-card {
  min-height: 178px;
  border-radius: 22px;
  background: #fff;
  border: 2px solid #eef2f7;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.1);
  padding: 12px 8px;
  display: grid;
  grid-template-rows: 72px 1fr;
  justify-items: center;
  align-items: center;
  text-align: center;
}

.challenge-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
}

.challenge-icon svg {
  width: 39px;
  height: 39px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.challenge-card strong {
  color: #111827;
  font-size: 19px;
  line-height: 1.06;
}

.reflection-block,
.help-block {
  margin-top: 20px;
  border-radius: 28px;
  padding: 20px 26px;
  background: #f8fbff;
  border: 2px solid #e2e8f0;
}

.reflection-block h3,
.help-block h3 {
  margin: 0 0 14px;
  color: var(--blue-dark);
  font-size: 27px;
}

.reflection-block ul {
  margin: 0;
  padding-left: 28px;
  display: grid;
  gap: 7px;
  color: #1f2937;
  font-size: 23px;
  line-height: 1.14;
  font-weight: 700;
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.help-card {
  min-height: 142px;
  border-radius: 18px;
  background: #fff;
  border: 2px solid #e2e8f0;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.08);
  padding: 12px 8px;
  display: grid;
  grid-template-rows: 52px 1fr;
  justify-items: center;
  align-items: center;
  text-align: center;
}

.help-card span {
  font-size: 40px;
  line-height: 1;
}

.help-card strong {
  color: #111827;
  font-size: 17px;
  line-height: 1.08;
}

.final-phrase {
  margin: 20px 0 0;
  border-radius: 28px;
  background: var(--blue-dark);
  color: #fff;
  padding: 20px 34px;
  text-align: center;
  font-size: 28px;
  line-height: 1.18;
  font-weight: 900;
}

.complementary-phrase {
  margin: 16px 10px 0;
  color: var(--blue-dark);
  text-align: center;
  font-size: 24px;
  line-height: 1.18;
  font-weight: 900;
}

.complementary-phrase[hidden] {
  display: none;
}

.infographic-brand {
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  color: var(--blue-dark);
  font-size: 66px;
  font-weight: 900;
  text-transform: none;
}

.infographic-brand img {
  width: 126px;
  height: 126px;
  display: block;
}

.infographic-card.is-exporting .challenge-section,
.infographic-card.is-exporting .reflection-block,
.infographic-card.is-exporting .help-block,
.infographic-card.is-exporting .infographic-brand {
  background: #fff;
}

.infographic-card.is-exporting .challenge-card,
.infographic-card.is-exporting .help-card {
  background: #fff;
  box-shadow: none;
}

.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  transform: none;
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px 24px 0 0;
  background: rgba(35, 48, 70, 0.96);
  backdrop-filter: blur(14px);
  box-shadow: 0 -10px 28px rgba(20, 24, 38, 0.18);
  z-index: 30;
}

.bottom-nav__item {
  appearance: none;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.72);
  min-height: 58px;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
  position: relative;
}

.bottom-nav__item:hover,
.bottom-nav__item.is-active {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.bottom-nav__icon {
  width: 22px;
  height: 22px;
  display: inline-flex;
}

.bottom-nav__icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.bottom-nav__label {
  font-size: 11px;
  line-height: 1;
}

.bottom-nav__menu-wrap {
  position: relative;
  display: flex;
  width: 100%;
}

.bottom-nav__menu-wrap .bottom-nav__item {
  width: 100%;
}

.bottom-nav__menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 12px);
  min-width: 220px;
  display: grid;
  gap: 6px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  background: rgba(35, 48, 70, 0.98);
  box-shadow: 0 18px 38px rgba(20, 24, 38, 0.22);
  backdrop-filter: blur(16px);
}

.bottom-nav__menu[hidden] {
  display: none !important;
}

.bottom-nav__menu-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.bottom-nav__menu-item {
  appearance: none;
  display: block;
  border: none;
  width: 100%;
  text-align: left;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  color: #f8fafc;
  padding: 14px;
  font-weight: 700;
  cursor: pointer;
}

.bottom-nav__menu-item:hover,
.bottom-nav__menu-item--current {
  background: rgba(255, 255, 255, 0.1);
  color: #f8fafc;
}

.bottom-nav__menu-item--danger {
  color: #fecaca;
}

@media (min-width: 980px) {
  .topbar,
  .infographic-main {
    max-width: 1180px;
    margin: 0 auto;
  }

  .infographic-main {
    grid-template-columns: 390px minmax(0, 1fr);
    align-items: start;
  }

  .form-field--full {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .topbar__nav {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .brand__name {
    font-size: 14px;
  }

  .support-link {
    padding-inline: 10px;
  }

  .title-strip h1 {
    font-size: 21px;
  }
}