/* ==========================================================================
   DESIGN TOKENS
   ========================================================================== */

:root {
  /* Colors */
  --color-bg-primary: #f8fafc;
  --color-bg-secondary: #eef2ff;
  --color-surface: #ffffff;
  --color-surface-soft: #f1f5f9;
  --color-border-subtle: #d0d7e2;
  --color-text-main: #0f172a;
  --color-text-soft: #64748b;
  --color-text-on-accent: #f9fafb;
  --color-accent: #4f46e5;
  --color-accent-soft: #a855f7;
  --color-accent-muted: #e0e7ff;
  --color-danger: #e11d48;
  --accent-rgb: 79, 70, 229;

  /* Typography */
  --font-heading: "Archivo Black", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-body: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-md: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;

  /* Radius */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-soft:
    0 1px 2px rgba(15, 23, 42, 0.04),
    0 4px 12px rgba(15, 23, 42, 0.06),
    0 18px 40px rgba(15, 23, 42, 0.08);
  --shadow-elevated: 0 16px 30px rgba(15, 23, 42, 0.12);

  /* Motion */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.24s ease;

  /* Layout */
  --page-max-width: 980px;
  --page-padding-x: 24px;
}

/* ==========================================================================
   BASE
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--color-text-main);
  background-color: var(--color-bg-primary);
}

img {
  display: block;
  max-width: 100%;
}

main {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 32px var(--page-padding-x) 40px;
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.shadow-soft {
  box-shadow: var(--shadow-soft);
}

.gradient-mesh {
  background:
    radial-gradient(at 40% 20%, hsla(228, 100%, 74%, 0.32) 0, transparent 55%),
    radial-gradient(at 80% 0%, hsla(257, 100%, 78%, 0.22) 0, transparent 55%),
    radial-gradient(at 0% 50%, hsla(214, 95%, 93%, 0.4) 0, transparent 55%),
    radial-gradient(at 80% 50%, hsla(243, 89%, 76%, 0.38) 0, transparent 55%);
  background-color: var(--color-bg-primary);
}

.gradient-border {
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(var(--color-surface), var(--color-surface)) padding-box,
    linear-gradient(135deg, var(--color-accent), var(--color-accent-soft)) border-box;
}

.accent-line {
  width: 64px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background-color: var(--color-border-subtle);
}

.status-dot--online {
  background-color: #22c55e;
}

/* ==========================================================================
   DECORATIVE SHAPES
   ========================================================================== */

.floating-shape {
  position: fixed;
  z-index: 0;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.18;
  filter: blur(60px);
  background: radial-gradient(circle, var(--color-accent-soft), transparent 60%);
  animation: float 10s ease-in-out infinite;
}

.floating-shape--one {
  top: -60px;
  left: -40px;
}

.floating-shape--two {
  right: -40px;
  bottom: -80px;
  animation-delay: -4s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-16px);
  }
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 18px;
  color: var(--color-text-on-accent);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  background: radial-gradient(circle at 0% 0%, var(--color-accent-soft), var(--color-accent));
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  letter-spacing: -0.03em;
}

.brand-tagline {
  font-size: var(--text-xs);
  color: var(--color-text-soft);
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-pill {
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background-color: transparent;
  color: var(--color-text-soft);
  font-size: var(--text-xs);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.nav-pill.is-active {
  color: var(--color-text-on-accent);
  background-color: var(--color-accent);
  box-shadow: 0 10px 25px rgba(79, 70, 229, 0.35);
}

.nav-pill:not(.is-active):hover {
  border-color: var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.04);
}

.nav-pill:focus-visible,
button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.35);
}

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.3fr);
  gap: 32px;
  align-items: flex-start;
}

.hero__content h1 {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 3vw, 2.7rem);
  letter-spacing: -0.05em;
}

.hero__subtitle {
  margin: 0 0 18px;
  color: var(--color-text-soft);
  font-size: var(--text-md);
  line-height: 1.6;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.hero-badge {
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  background-color: rgba(15, 23, 42, 0.04);
  color: var(--color-text-soft);
  font-size: var(--text-xs);
}

/* ==========================================================================
   FORMS
   ========================================================================== */

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field__label {
  color: var(--color-text-soft);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field__control--select select,
.results__select,
.results__search-group input[type="search"],
.host-form input,
.host-form textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text-main);
  font-family: var(--font-body);
  font-size: var(--text-sm);
}

.field__control--select select,
.results__search-group input[type="search"],
.results__select {
  padding: 6px 10px;
}

.field__control--select select:focus-visible,
.results__select:focus-visible,
.results__search-group input[type="search"]:focus-visible,
.host-form input:focus-visible,
.host-form textarea:focus-visible,
.message-form textarea:focus-visible {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.24);
}

.field__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  padding: 5px 12px;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-soft);
  color: var(--color-text-soft);
  font-size: var(--text-xs);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.chip.is-selected {
  border-color: transparent;
  color: var(--color-text-on-accent);
  background-color: var(--color-accent);
  box-shadow: 0 10px 25px rgba(79, 70, 229, 0.35);
}

.chip:hover {
  transform: translateY(-1px);
}

/* ==========================================================================
   FILTER CARD
   ========================================================================== */

.filter-card {
  margin-top: 10px;
  padding: 20px 20px 18px;
}

.filter-card__header {
  margin-bottom: 16px;
}

.filter-card__title {
  margin: 0 0 6px;
  font-size: var(--text-lg);
}

.filter-card__hint,
.filter-card__note {
  margin: 0;
  color: var(--color-text-soft);
  font-size: var(--text-sm);
}

.filter-card__note {
  font-size: var(--text-xs);
}

.filter-card__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.filter-card__footer {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border: none;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    opacity var(--transition-fast);
}

.btn__label {
  white-space: nowrap;
}

.btn--primary {
  color: var(--color-text-on-accent);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-soft));
  box-shadow: var(--shadow-elevated);
}

.btn--primary:hover {
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.24);
}

.btn--secondary {
  color: var(--color-accent);
  background-color: var(--color-accent-muted);
}

.btn--secondary:hover {
  color: var(--color-text-on-accent);
  background-color: var(--color-accent);
}

.btn--ghost {
  padding: 8px 14px;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-pill);
  background-color: transparent;
  color: var(--color-text-soft);
}

.btn--ghost:hover {
  background-color: rgba(15, 23, 42, 0.04);
}

.btn--ghost[aria-pressed="true"] {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: var(--color-accent-muted);
}

.btn[disabled] {
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
}

/* ==========================================================================
   RECENTLY ACTIVE
   ========================================================================== */

.hero__aside {
  align-self: stretch;
}

.mini-stack {
  padding: 16px 16px 14px;
  border-radius: var(--radius-lg);
  color: #e5e7eb;
  background-color: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(18px);
}

.mini-stack__title {
  margin: 0 0 4px;
  font-size: var(--text-sm);
}

.mini-stack__hint {
  margin: 0 0 10px;
  color: #cbd5f5;
  font-size: var(--text-xs);
}

.mini-stack__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-xs);
}

.mini-stack__item {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ==========================================================================
   HOST SECTION
   ========================================================================== */

.host {
  margin-top: 24px;
}

.host__subtitle {
  max-width: 40rem;
  margin: 8px 0 18px;
  color: var(--color-text-soft);
  font-size: var(--text-sm);
}

.host__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.2fr);
  gap: 20px;
  align-items: flex-start;
}

.host-form {
  padding: 18px 18px 16px;
}

.host-form__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.host-form textarea {
  resize: vertical;
  min-height: 80px;
}

.host-form__footer {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
}

.host-form__note,
.host-form__error,
.host-list__empty,
.host-card__meta,
.host-card__description {
  font-size: var(--text-xs);
}

.host-form__note,
.host-list__empty,
.host-card__meta {
  color: var(--color-text-soft);
}

.host-form__error {
  margin: 8px 0 0;
  color: var(--color-danger);
}

.host-list {
  padding: 16px 16px 14px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
}

.host-list__title {
  margin: 0 0 8px;
  font-size: var(--text-md);
}

.host-list__filters {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 10px;
}

.host-list__items {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.host-card {
  padding: 10px 10px 8px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  border-radius: var(--radius-md);
  background-color: var(--color-surface-soft);
}

.host-card__title {
  margin: 0 0 4px;
  font-size: var(--text-sm);
}

.host-card__description {
  margin: 4px 0 0;
}

/* ==========================================================================
   RESULTS
   ========================================================================== */

.results {
  margin-top: 8px;
}

.results__header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.results__header h2 {
  margin: 0 0 6px;
  font-size: var(--text-xl);
}

.results__subtitle {
  margin: 0;
  color: var(--color-text-soft);
  font-size: var(--text-sm);
}

.results__tools {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 260px;
}

.results__search-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.results__filters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 8px;
  align-items: end;
}

.results__filters .field__label {
  font-size: 0.7rem;
}

.results__count {
  color: var(--color-text-soft);
  font-size: var(--text-sm);
  text-align: right;
}

.results__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.3fr);
  gap: 20px;
}

.results__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.profile-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px 14px 12px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
}

.profile-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 16px;
  color: var(--color-text-on-accent);
  font-weight: 600;
  background: radial-gradient(circle at 0 0, var(--color-accent-soft), var(--color-accent));
}

.profile-main {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.profile-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.profile-name {
  font-size: var(--text-sm);
  font-weight: 600;
}

.profile-meta {
  color: var(--color-text-soft);
  font-size: var(--text-xs);
}

.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.profile-tag {
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background-color: var(--color-bg-secondary);
  color: var(--color-text-soft);
  font-size: 0.7rem;
}

.profile-tag--highlight {
  color: var(--color-text-on-accent);
  background-color: var(--color-accent);
}

.profile-action {
  display: flex;
  align-items: center;
  align-self: stretch;
  gap: 8px;
}

/* ==========================================================================
   MESSAGE PANEL
   ========================================================================== */

.message-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 16px 12px;
  border-radius: var(--radius-lg);
  color: #e5e7eb;
  background-color: rgba(15, 23, 42, 0.96);
}

.message-panel__title {
  margin: 0 0 4px;
  font-size: var(--text-md);
}

.message-panel__subtitle {
  margin: 0;
  color: #9ca3af;
  font-size: var(--text-xs);
}

.message-log {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 56px;
  max-height: 190px;
  overflow-y: auto;
  padding-right: 2px;
}

.message-log__entry {
  padding: 7px 9px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  border-radius: 10px;
  background-color: rgba(15, 23, 42, 0.9);
  font-size: var(--text-xs);
  line-height: 1.5;
}

.message-log__meta {
  display: block;
  margin-bottom: 2px;
  color: #9ca3af;
  white-space: pre-line;
}

.message-log__text {
  display: block;
}

.message-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.message-form textarea {
  min-height: 70px;
  max-height: 130px;
  resize: vertical;
  border: 1px solid rgba(148, 163, 184, 0.7);
  border-radius: var(--radius-sm);
  background-color: rgba(15, 23, 42, 0.8);
  color: #e5e7eb;
}

.message-form textarea::placeholder {
  color: #6b7280;
}

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

.how-it-works {
  margin-top: 8px;
}

.how-it-works h2 {
  margin: 16px 0 14px;
  font-size: var(--text-lg);
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.how-card {
  padding: 14px 14px 12px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  font-size: var(--text-sm);
}

.how-card h3 {
  margin: 0 0 6px;
  font-size: var(--text-md);
}

.how-card p {
  margin: 0;
  color: var(--color-text-soft);
}

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

.site-footer {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid rgba(148, 163, 184, 0.5);
}

.site-footer__text {
  margin: 0;
  color: var(--color-text-soft);
  font-size: var(--text-xs);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 860px) {
  .page {
    padding-top: 24px;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .site-header__nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .hero,
  .results__layout,
  .how-grid,
  .host__layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero__aside {
    order: -1;
  }

  .host-form__footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .results__header {
    align-items: stretch;
  }

  .results__tools {
    width: 100%;
  }

  .results__count {
    text-align: left;
  }
}

@media (max-width: 520px) {
  .filter-card__grid,
  .host-form__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .filter-card__footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .profile-card {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
  }

  .profile-action {
    grid-column: 1 / -1;
    justify-content: flex-end;
  }
}