/* Proxima — global base styles + reset
   Monospace throughout, dark background, mobile-first. No per-screen styling
   here; screens add their own. */

/* --- Reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  font-family: 'Courier New', Courier, monospace;
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Respect iOS safe areas when installed to Home Screen */
  padding: env(safe-area-inset-top) env(safe-area-inset-right)
    env(safe-area-inset-bottom) env(safe-area-inset-left);
  overflow-x: hidden;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

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

ul,
ol {
  list-style: none;
}

/* Remove tap highlight on mobile */
* {
  -webkit-tap-highlight-color: transparent;
}

/* --- App root --- */
#app {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* --- Placeholder screen (used until real screens are built) --- */
.screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  text-align: center;
}

.screen__title {
  color: var(--color-accent);
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.screen__hint {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

/* ===================================================================
   Radar view component (animated concentric rings)
   =================================================================== */
.radar-view {
  --radar-size: 260px;
  position: relative;
  width: var(--radar-size);
  height: var(--radar-size);
  display: grid;
  place-items: center;
}

.radar-view__ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--radar-size);
  height: var(--radar-size);
  border: 1px solid rgba(232, 168, 124, 0.35);
  border-radius: var(--radius-full);
  transform: translate(-50%, -50%) scale(var(--ring-scale));
  opacity: 0;
  animation: radar-pulse 3.6s ease-out infinite;
  animation-delay: var(--ring-delay);
}

.radar-view__core {
  position: absolute;
  width: calc(var(--radar-size) * 0.07);
  height: calc(var(--radar-size) * 0.07);
  border-radius: var(--radius-full);
  background: var(--color-accent);
  box-shadow: 0 0 12px 2px rgba(232, 168, 124, 0.6);
  animation: radar-core 3.6s ease-in-out infinite;
}

@keyframes radar-pulse {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.05);
  }
  20% {
    opacity: 0.8;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(var(--ring-scale));
  }
}

@keyframes radar-core {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.9;
  }
  50% {
    transform: scale(1.4);
    opacity: 1;
  }
}

/* ===================================================================
   Auth screens (welcome / login / register)
   =================================================================== */
.auth {
  gap: var(--space-lg);
  max-width: 420px;
  margin: 0 auto;
  width: 100%;
}

.auth__hero {
  display: grid;
  place-items: center;
}

.auth__logo {
  font-family: Georgia, 'Times New Roman', serif;
  color: var(--color-accent);
  font-size: 2.75rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1;
}

.auth__logo--small {
  font-size: 1.75rem;
}

.auth__tagline {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.auth__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
  margin-top: var(--space-sm);
}

.auth__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
}

.auth__footer {
  position: absolute;
  bottom: var(--space-lg);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.auth__link {
  color: var(--color-accent);
  font-size: 0.85rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.auth__error {
  color: var(--color-error);
  font-size: 0.85rem;
  margin-top: var(--space-xs);
  min-height: 1.1em;
}

.auth__error--ok {
  color: var(--color-success);
}

.auth__remember {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  cursor: pointer;
  user-select: none;
}

.auth__remember input[type='checkbox'] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

/* Language toggle (EN | RO) */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
}

.lang-toggle__btn {
  color: var(--color-text-muted);
  letter-spacing: 1px;
  padding: 2px 4px;
}

.lang-toggle__btn.is-active {
  color: var(--color-accent);
  font-weight: 700;
}

.lang-toggle__sep {
  color: var(--color-text-muted);
}

/* ===================================================================
   Form controls
   =================================================================== */
.input {
  width: 100%;
  background: transparent;
  color: var(--color-text);
  border: 1px solid rgba(232, 168, 124, 0.25);
  border-radius: 12px;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.18s ease;
}

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

.input:focus {
  border-color: rgba(232, 168, 124, 0.6);
}

.btn {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  transition: transform 0.12s ease, opacity 0.18s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-background);
  font-weight: 700;
}

.btn--secondary {
  background: rgba(232, 168, 124, 0.1);
  border: 1px solid rgba(232, 168, 124, 0.35);
  color: var(--color-accent);
}

/* ===================================================================
   Shared layout — all main screens max 480px, centered
   =================================================================== */
.list-screen,
.chat-screen {
  justify-content: flex-start;
  align-items: stretch;
  padding: 0;
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
}

.topbar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-background);
  z-index: 2;
}

.topbar__title {
  color: var(--color-text);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  flex: 1;
}

.topbar__action {
  color: var(--color-accent);
  font-size: 0.9rem;
}

.list__status {
  color: var(--color-text-secondary);
  text-align: center;
  padding: var(--space-xl);
  font-size: 0.9rem;
}

.list__status--error {
  color: var(--color-error);
}

/* ===================================================================
   Matches list
   =================================================================== */
.list {
  display: flex;
  flex-direction: column;
}

.match-card {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  text-align: left;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  width: 100%;
}

.match-card:active {
  background: var(--color-surface);
}

.avatar {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  background: rgba(232, 168, 124, 0.12);
  border: 1px solid rgba(232, 168, 124, 0.35);
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.match-card__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.match-card__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-sm);
}

.match-card__name {
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 700;
}

.match-card__time {
  color: var(--color-text-muted);
  font-size: 0.7rem;
}

.match-card__last {
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.expiry {
  display: block;
  height: 3px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  overflow: hidden;
  margin-top: 4px;
}

.expiry__fill {
  display: block;
  height: 100%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

/* ===================================================================
   Chat
   =================================================================== */
.chat-screen {
  height: 100vh;
  height: 100dvh;
}

.chat-header {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chat-header__timer {
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
}

.bubble-row {
  display: flex;
}

.bubble-row--mine {
  justify-content: flex-end;
}

.bubble-row--theirs {
  justify-content: flex-start;
}

.bubble {
  max-width: 78%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.4;
  word-wrap: break-word;
}

.bubble--mine {
  background: var(--color-accent);
  color: var(--color-background);
  border-bottom-right-radius: 4px;
}

.bubble--theirs {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-bottom-left-radius: 4px;
}

.bubble--pending {
  opacity: 0.6;
}

.composer {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border);
  background: var(--color-background);
}

.composer__input {
  flex: 1;
}

.composer__send {
  width: auto;
  padding: 10px 20px;
}

/* ===================================================================
   Radar screen (main)
   =================================================================== */
.radar-screen {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
  gap: var(--space-xl);
}

.radar-screen__label {
  font-size: 10px;
  letter-spacing: 4px;
  color: rgba(232, 168, 124, 0.55);
  transition: color 0.3s ease;
}

.radar-screen__hint {
  font-size: 9px;
  letter-spacing: 3px;
  opacity: 0.28;
}

.radar-core {
  --radar-diameter: min(72vw, 280px);
  position: relative;
  width: var(--radar-diameter);
  height: var(--radar-diameter);
  display: grid;
  place-items: center;
  cursor: pointer;
  user-select: none;
}

.radar-core__rings {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.radar-core__rings circle {
  stroke: var(--color-accent);
  transition: stroke 0.3s ease;
}

.radar-core__nucleus {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  box-shadow: 0 0 16px 4px rgba(232, 168, 124, 0.45);
  animation: nucleus-pulse 4s ease-in-out infinite;
}

.radar-core__dot {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: #fde8d0;
}

/* Glow pulses that expand outward and fade. */
.radar-core__pulse {
  position: absolute;
  width: 40%;
  height: 40%;
  border-radius: var(--radius-full);
  border: 1px solid rgba(232, 168, 124, 0.5);
  opacity: 0;
  animation: radar-expand 3.9s ease-out infinite;
  animation-delay: var(--pulse-delay);
}

@keyframes nucleus-pulse {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.25); opacity: 1; }
}

@keyframes radar-expand {
  0% { transform: scale(0.4); opacity: 0; }
  15% { opacity: 0.7; }
  100% { transform: scale(2.6); opacity: 0; }
}

/* Scanning state: terracota -> cyan. */
.radar-screen.is-scanning .radar-screen__label {
  color: #00d4ff;
}

.radar-screen.is-scanning .radar-core__rings circle {
  stroke: #00d4ff;
}

.radar-screen.is-scanning .radar-core__nucleus {
  background: #00d4ff;
  box-shadow: 0 0 16px 4px rgba(0, 212, 255, 0.5);
}

.radar-screen.is-scanning .radar-core__pulse {
  border-color: rgba(0, 212, 255, 0.6);
}

/* Filters FAB */
.fab {
  position: absolute;
  right: 24px;
  bottom: 30px;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-accent);
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.fab__line {
  display: block;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

.fab__line:nth-child(1) { width: 22px; }
.fab__line:nth-child(2) { width: 15px; }
.fab__line:nth-child(3) { width: 9px; }

/* ===================================================================
   Profile
   =================================================================== */
.profile {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.profile__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.profile-avatar {
  width: 88px;
  height: 88px;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  border: 2px solid rgba(232, 168, 124, 0.4);
  color: var(--color-accent);
  font-size: 1.8rem;
  font-weight: 700;
}

.profile__name {
  color: var(--color-text);
  font-size: 1.3rem;
  letter-spacing: 0.03em;
}

.profile__meta {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.profile__section {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.profile__label {
  color: var(--color-accent);
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
}

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

.profile__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.profile__signout {
  background: transparent;
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

.profile-edit {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-lg);
}

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

.field__label {
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Static chips (profile view) on the dark theme. */
.chip--static {
  display: inline-block;
  padding: 7px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(232, 168, 124, 0.35);
  background: rgba(232, 168, 124, 0.1);
  color: var(--color-accent);
  font-size: 0.82rem;
}

/* ===================================================================
   Filters modal (slide-up sheet)
   =================================================================== */
.filters-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.filters-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.filters-modal.is-open .filters-modal__backdrop {
  opacity: 1;
}

.filters-sheet {
  position: relative;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  background: #c8875a;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transform: translateY(100%);
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

.filters-modal.is-open .filters-sheet {
  transform: translateY(0);
}

.filters-sheet__handle {
  width: 42px;
  height: 4px;
  border-radius: var(--radius-full);
  background: rgba(26, 8, 0, 0.35);
  align-self: center;
}

.filters-sheet__scroll {
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding-bottom: var(--space-sm);
}

.filters-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.filters-section__title {
  color: #1a0800;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 3px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* Interactive chips inside the modal. */
.filters-modal .chip {
  padding: 8px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.18);
  color: #000;
  font-size: 0.85rem;
  transition: background 0.15s ease, color 0.15s ease;
}

.filters-modal .chip.is-selected {
  background: #1a0800;
  color: var(--color-accent);
  border-color: #1a0800;
}

/* Slider card */
.slider-card {
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 16px;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.slider-card__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.slider-card__value {
  color: #1a0800;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
}

.slider-card__unit {
  font-size: 0.9rem;
  margin-left: 4px;
}

.slider-card__max {
  color: rgba(26, 8, 0, 0.6);
  font-size: 0.75rem;
}

.slider-card input[type='range'] {
  width: 100%;
  accent-color: #1a0800;
}

.filters-apply {
  background: #1a0800;
  color: var(--color-accent);
  border-radius: var(--radius-full);
  letter-spacing: 3px;
  font-weight: 700;
  padding: 14px;
  font-size: 0.85rem;
}

/* ===================================================================
   Nearby signal cards (radar)
   =================================================================== */
.nearby {
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: 0 var(--space-md);
}

.nearby__empty {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  letter-spacing: 1px;
}

.signal-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-align: left;
  width: 100%;
  padding: 10px 14px;
  border: 1px solid rgba(232, 168, 124, 0.3);
  background: var(--color-surface);
  border-radius: var(--radius-md);
}

.signal-card:active {
  background: var(--color-surface-elevated);
}

.signal-card__dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  box-shadow: 0 0 8px 1px rgba(232, 168, 124, 0.6);
  animation: nucleus-pulse 2s ease-in-out infinite;
  flex: 0 0 auto;
}

.avatar--sm {
  width: 34px;
  height: 34px;
  font-size: 0.75rem;
}

.signal-card__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.signal-card__name {
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 700;
}

.signal-card__meta {
  color: var(--color-text-secondary);
  font-size: 0.72rem;
}

.signal-card__cta {
  color: var(--color-accent);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ===================================================================
   Encounter modal
   =================================================================== */
.encounter-modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  background: rgba(8, 8, 8, 0.82);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.encounter-modal.is-open {
  opacity: 1;
}

.encounter-card {
  width: 100%;
  max-width: 360px;
  background: var(--color-surface);
  border: 1px solid rgba(232, 168, 124, 0.35);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg) var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  transform: translateY(16px) scale(0.96);
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

.encounter-modal.is-open .encounter-card {
  transform: translateY(0) scale(1);
}

.encounter-card__timer {
  color: var(--color-accent);
  font-size: 0.8rem;
  letter-spacing: 2px;
}

.encounter-card__alert {
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  letter-spacing: 1px;
}

.encounter-avatar {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 2px solid rgba(232, 168, 124, 0.5);
  color: var(--color-accent);
  font-size: 2rem;
  font-weight: 700;
  box-shadow: 0 0 24px 4px rgba(232, 168, 124, 0.25);
  animation: nucleus-pulse 3s ease-in-out infinite;
}

.encounter-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.encounter-card__name {
  color: var(--color-text);
  font-size: 1.3rem;
}

.encounter-card__meta {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.encounter-card__bio {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  text-align: center;
  font-style: italic;
}

.encounter-card__interests {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
  margin-top: var(--space-xs);
}

.encounter-card__interests-title {
  color: var(--color-accent);
  font-size: 0.68rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.encounter-card__interests .chips {
  justify-content: center;
}

.encounter-card__actions {
  display: flex;
  gap: var(--space-sm);
  width: 100%;
  margin-top: var(--space-md);
}

.encounter-card__actions .btn {
  flex: 1;
}