/* ── Reset body for scrollable landing (override challenge.css) ── */
.landing-body {
  height: auto !important;
}

/* ── Sticky nav ────────────────────────────────────────────────── */
.landing-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nph-blue);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 21px 22px;
  height: var(--landing-header-height);
}

.nav-logo {
  height: 28px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Sections ────────────────────────────────────────────────── */
section {
  padding-inline: 35px;
}

section > hr {
  border: 0;
  height: 1px;
  background-color: var(--nph-blue);
  max-width: 305px;
  margin-inline: auto;
}

section.hero {
  /* background: var(--bg-hero); */
  background: linear-gradient(180deg, #e0ddf7 10.09%, #ffffff 93.47%);
}

section.hero > h1 {
  padding-block-start: 312px;
  margin-block-end: 21px;
}
section.hero > h1 span {
  color: var(--custom-dark-blue);
  background: var(--bg-cta-button);

  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

section.hero > .subtitle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 900;
  color: var(--nph-grey);
  margin-block-end: 16px;
}
section.hero > .subtitle span {
  color: var(--custom-dark-blue);
  background: var(--bg-cta-button);

  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

section.hero > p {
  font-weight: 700;
  margin-block-end: 20px;
}

section.about {
  text-align: center;
  padding-block: 20px;
}
section.about > img {
  margin-block: 20px;
}
section.about h2 {
  color: var(--nph-blue);
}
section.about .content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 29px;
  margin-block: 20px 30px;
}
section.about .about-cta {
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--nph-blue);
  margin-block-end: 16px;
}
section.about .btn {
  margin-inline: auto;
}

@media (width > 375px) {
  section.hero > .subtitle {
    justify-content: start;
    gap: 6px;
  }
}

@media (width > 768px) {
  main > section {
    padding-inline: 71.68px;
  }
}

@media (width > 1024px) {
  main > section {
    padding-inline: 95.57px;
  }
}

@media (width > 1440px) {
  main > section {
    padding-inline: 134.4px;
  }
}

@media (width > 1920px) {
  main > section {
    padding-inline: 374.4px;
  }
}

/* ── Dialogs ────────────────────────────────────────────────── */

dialog {
  height: 100dvh;
  margin: auto;
  background: var(--bg-modal);
  transition: opacity 0.5s;
  border: 0;
  max-width: none;
  max-height: none;
  padding: 0;
  inset: 0;
  height: 100dvh;
  width: min(100dvw, 768px);
}

@media (width > 768px) {
  dialog {
    height: min(100dvh, 689px);
  }
}

dialog[open] {
  opacity: 1;
}

dialog::backdrop {
  background: var(--bg-modal-backdrop);
}

dialog > section {
  display: none;
  flex-basis: 100%;
}
dialog > section:not(.hidden) {
  display: block;
}

/* ── Loading section ── */
dialog > section.co-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 40px;
  width: 100%;
  height: 100%;
}
dialog > section.co-loading .co-loading__tag {
  font-size: 0.813rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--white);
}
dialog > section.co-loading .co-loading__spider {
  width: 150px;
}

/* ── Challenge section ── */
dialog > section.co-inner {
  flex-direction: column;
  color: var(--white);
}

dialog > section.co-inner header {
  background: var(--bg-chat-header);
  position: sticky;
  top: 0;
  padding-inline: 35px;
  margin-inline: -35px;
  display: flex;
  align-items: center;
  height: 100px;
  flex-shrink: 0;
  z-index: 1;
}

dialog > section.co-inner header .status {
  display: none;
  flex-direction: column;
  gap: 10px;
}

dialog > section.co-inner header .status .co-level-steps {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

dialog > section.co-inner header .status .co-level-steps .step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

dialog > section.co-inner header .status .co-level-steps .step img {
  opacity: 0;
}
dialog > section.co-inner header .status .co-level-steps .step span {
  width: 36px;
  height: 3px;
  border-radius: 1.5px;
  background-color: var(--white);
}
dialog > section.co-inner header .status .co-level-steps .step.step-1 img {
  width: 28px;
}
dialog > section.co-inner header .status .co-level-steps .step.step-2 img {
  width: 35px;
}
dialog > section.co-inner header .status .co-level-steps .step.step-3 img {
  width: 42px;
}

dialog > section.co-inner header .status .co-level-steps .step.active img,
dialog > section.co-inner header .status .co-level-steps .step.viewing img {
  opacity: 1;
}
dialog > section.co-inner header .status .co-level-steps .step.active span,
dialog > section.co-inner header .status .co-level-steps .step.viewing span {
  box-shadow: 0 0 2px 2px var(--white-transparent);
}

dialog > section.co-inner header .status .co-level-text {
  display: flex;
  align-items: start;
  gap: 6px;
}
dialog > section.co-inner header .status .co-level-text .co-level-label {
  font-size: 0.875rem;
}
dialog > section.co-inner header .status .co-level-text .co-level-name {
  font-weight: bold;
}
dialog > section.co-inner header > button {
  margin-inline-start: auto;
}

dialog > section.co-inner .main {
  padding-block-start: 100px;
  width: 100%;
}

dialog > section.co-inner .main > img {
  width: 150px;
  margin-inline: auto;
  margin-block-end: 20px;
}

dialog > section.co-inner .main .btn {
  margin-inline: auto;
}

dialog > section.co-inner .main .welcome {
  text-align: center;
}

dialog > section.co-inner .main .welcome h2 {
  font-size: 1rem;
  font-weight: bold;
  margin-block-end: 30px;
}
dialog > section.co-inner .main .welcome p {
  margin-block-end: 16px;
}
dialog > section.co-inner .main .welcome table,
dialog > section.co-inner .main .welcome th,
dialog > section.co-inner .main .welcome td {
  border: 1px solid var(--white);
  padding: 4px 8px;
}
dialog > section.co-inner .main .welcome table {
  border-collapse: collapse;
  margin-block-end: 16px;
  margin-inline: auto;
}
dialog > section.co-inner .main .welcome button:last-child {
  margin-block: 30px;
}
dialog > section.co-inner .main .question {
}

dialog > section.co-inner .main .question img.challenge-logo {
  width: 80px;
  margin-block: 275px 30px;
}

dialog > section.co-inner .main .question h2 {
  margin-block-end: 8px;
}

dialog > section.co-inner .main .question .code-wrap {
  font-size: 0.875rem;
  margin-block: 30px;
}

dialog > section.co-inner .main .question .options {
  max-width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: none;
  margin-block-end: 30px;
}
dialog > section.co-inner .main .question .options code {
  color: var(--custom-bubble-code);
}

dialog > section.co-inner .main .user,
dialog > section.co-inner .main .agent {
  border-radius: 20px;
  padding: 16px 22px;
  margin-block-end: 12px;
  max-width: 75dvw;
}

dialog > section.co-inner .main .user,
dialog > section.co-inner .main .agent,
dialog > section.co-inner .main .system,
dialog > section.co-inner .main .user div,
dialog > section.co-inner .main .agent div,
dialog > section.co-inner .main .system div,
dialog > section.co-inner .main .user p,
dialog > section.co-inner .main .agent p {
  width: fit-content;
}

dialog > section.co-inner .main .user code,
dialog > section.co-inner .main .agent code {
  font-weight: 900;
}

dialog > section.co-inner .main .user {
  background: var(--white);
  color: var(--custom-dark-blue);
  border-top-right-radius: 3px;
  margin-inline-start: auto;
}

dialog > section.co-inner .main .agent {
  background: var(--custom-light-blue);
  color: var(--white);
  border-top-left-radius: 3px;
  margin-inline-end: auto;
}

dialog > section.co-inner .main .agent.feedback {
  position: relative;
}
dialog > section.co-inner .main .agent.feedback .btn {
  position: absolute;
  right: 8px;
  top: 12px;
  border: 0;
  border-color: var(--custom-light-blue);
  z-index: 0;
}
dialog > section.co-inner .main .agent.feedback.feedback--correct .btn {
  background-color: var(--custom-green);
}
dialog > section.co-inner .main .agent.feedback.feedback--wrong .btn,
dialog > section.co-inner .main .agent.feedback.feedback--jailbreak .btn {
  background: var(--custom-red);
}

dialog > section.co-inner .main .system {
  margin-block: 30px;
  margin-inline: auto;
}

dialog > section.co-inner .main .bubble + button {
  margin-block: 30px;
}

dialog > section.co-inner footer {
  display: none;
  align-items: center;
  margin-inline: -35px;
  padding-inline: 22px;
  flex-basis: 70px;
  flex-grow: 0;
  flex-shrink: 0;
  background: var(--bg-input);
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  height: 70px;
  position: sticky;
  bottom: 0;
}

dialog > section.co-inner footer.input-bar:has(input:focus-visible) {
  outline: 1px solid var(--custom-sky-blue);
  box-shadow: 0 0 0 4px rgba(1, 46, 120, 0.6);
}

dialog > section.co-inner footer.input-bar input:focus-visible {
  outline-color: var(--transparent);
  box-shadow: none;
}

dialog > section.co-inner footer .input-wrap {
  display: flex;
  align-items: center;
  width: 100%;
  gap: 14px;
}

dialog > section.co-inner footer .input-wrap input {
  flex-basis: 100%;
  font-size: 1rem;
  background: var(--transparent);
  color: var(--white);
  border-color: var(--transparent);
}

dialog > section.co-inner footer .input-wrap input::placeholder {
  color: var(--white-transparent);
}

dialog > section.co-inner:has(.question) header .status {
  display: flex;
}
dialog > section.co-inner:has(.question) footer {
  display: flex;
}

dialog#welcome-dialog .main {
  text-align: center;
}

/* ── Challenge summary ── */
dialog#summary-dialog section.co-inner > header .status {
  align-items: center;
  display: flex;
  font-size: 0.875rem;
  text-transform: uppercase;
}

dialog#summary-dialog section.co-inner > div {
  text-align: center;
  padding-block-start: 100px;
}

dialog#summary-dialog section.co-inner > div > img {
  max-width: 150px;
  margin-block-end: 18px;
}

dialog#summary-dialog section.co-inner > div > .so-verdict-title {
  margin-block-start: 4px;
  text-align: center;
  min-height: 32px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

dialog#summary-dialog section.co-inner > div > h2 {
  text-transform: capitalize;
}

dialog#summary-dialog section.co-inner > div > ol {
  list-style-type: none;
  display: flex;
  gap: 16px;
  margin-block: 20px;
  justify-content: center;
}

dialog#summary-dialog section.co-inner > div > ol article {
  background-color: var(--custom-light-blue);
  border-radius: 5px;
  padding: 30px 20px;
  display: flex;
  flex-direction: column;
  height: 100%;
  flex-basis: 91px;
  flex-grow: 0;
  flex-shrink: 0;
}

dialog#summary-dialog section.co-inner > div > ol article > .level {
  font-size: 0.625rem;
  line-height: 100%;
}

dialog#summary-dialog section.co-inner > div > ol article > .level-name {
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 700;
}

dialog#summary-dialog section.co-inner > div > ol article > .level-status-icon {
  margin-block: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

dialog#summary-dialog section.co-inner > div > ol article > .jailbreaks {
  font-size: 0.75rem;
}
dialog#summary-dialog section.co-inner > div > ol article > .jailbreaks strong {
  font-weight: 900;
}

dialog#summary-dialog section.co-inner > div > #so-prose h2 {
  font-size: 1.375rem;
  line-height: 100%;
  letter-spacing: -0.01em;
  margin-block: 36px;
}
dialog#summary-dialog section.co-inner > div > #so-prose p + p {
  margin-block-start: 1em;
}
dialog#summary-dialog section.co-inner > div > #so-prose p:last-child {
  margin-block-end: 36px;
}

dialog#summary-dialog section.co-inner > div > .btn-actions {
  margin-block: 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

dialog#summary-dialog .summary-about {
  width: 100%;
  padding-block: 20px 30px;
  border-top: 1px solid var(--custom-light-blue);
}
dialog#summary-dialog .summary-about p {
  text-transform: uppercase;
  margin-block: 12px 20px;
}

/* ── Feedback section ── */
.feedback-section {
  display: none;
  width: 100%;
  margin: 0 auto;
}

.feedback-section.visible {
  display: block;
}

.feedback-section > h2 {
  font-weight: 700;
  font-size: 1.375rem;
  line-height: 100%;
  letter-spacing: -0.01em;
  margin-block-end: 6px;
}
.feedback-section > p {
  font-weight: 400;
  font-size: 0.875rem;
  line-height: 1.25rem;
  letter-spacing: -0.02em;
}

.feedback-section form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-block: 30px;
}

.feedback-section form > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.feedback-section form > div input,
.feedback-section form > div textarea {
  border-radius: 20px;
  background: var(--bg-input);
  border: 1px solid var(--custom-light-blue);
  padding: 16px 22px;
  color: var(--white);
  font-size: 1rem;
  font-family: var(--font-sans);
}

.feedback-section form > div input::placeholder,
.feedback-section form > div textarea::placeholder {
  color: var(--white-transparent);
  letter-spacing: -1%;
}

.feedback-section form > div input:not(:focus):invalid,
.feedback-section form > div input:not(:focus):user-invalid,
.feedback-section form > div textarea:not(:focus):invalid,
.feedback-section form > div textarea:not(:focus):user-invalid {
  border-color: var(--custom-red);
}

.feedback-response .feedback-response-positive,
.feedback-response .feedback-response-negative {
  display: none;
  font-size: 1.375rem;
  line-height: 100%;
  letter-spacing: -0.01em;
  margin-block-end: 36px;
}

.feedback-response.feedback-response--ok .feedback-response-positive {
  display: block;
}
.feedback-response.feedback-response--ko .feedback-response-negative {
  display: block;
}