/* Romela Pula PWA — Lovable swift-pay-chat visual reskin (Option A) */

:root {
  --green-bg: oklch(0.94 0.02 155);
  --green-header: oklch(0.3 0.08 155);
  --green-accent: oklch(0.5 0.17 155);
  --green-accent-hover: oklch(0.45 0.17 155);
  --green-avatar: oklch(0.55 0.16 155);
  --green-user-bubble: oklch(0.75 0.14 155);
  --green-footer: oklch(0.97 0.02 155);
  --green-login-bg: oklch(0.98 0.01 150);
  --green-brand: oklch(0.35 0.12 155);
  --green-brand-light: oklch(0.55 0.16 155);

  --surface: #ffffff;
  --text: oklch(0.129 0.042 264.695);
  --muted: oklch(0.554 0.046 257.417);
  --border: oklch(0.929 0.013 255.508);
  --danger: oklch(0.577 0.245 27.325);
  --radius: 0.625rem;
  --radius-lg: 1rem;
  --shadow: 0 10px 40px oklch(0.3 0.08 155 / 12%);
  --dot-pattern: radial-gradient(oklch(0.9 0.02 155) 1px, transparent 1px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--green-login-bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100dvh;
}

body.chat-active {
  overflow: hidden;
  height: 100%;
  background: var(--green-bg);
}

html.chat-active {
  overflow: hidden;
  height: 100%;
}

#app {
  max-width: 720px;
  margin: 0 auto;
  min-height: 100dvh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hidden { display: none !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ─── Login ─────────────────────────────────────────────────────────── */

.login-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  background: var(--green-login-bg);
}

.login-brand {
  padding: 1.5rem 1.25rem 0;
}

.login-brand .wordmark {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--green-brand);
}

.login-brand .wordmark span {
  color: var(--green-brand-light);
}

.login-center {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1rem 2rem;
}

.login-card {
  width: 100%;
  max-width: 420px;
  margin: 0;
  padding: 2rem 1.75rem;
  background: var(--surface);
  border-radius: calc(var(--radius-lg) + 4px);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.login-card h1 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
}

.login-card .lead,
.login-card .hint {
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.9rem;
  text-align: center;
  margin: 0 0 1.25rem;
}

.login-card .hint { text-align: left; margin-top: 0; }

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 1rem 0 0.4rem;
}

input[type="tel"],
input[type="text"],
.composer textarea {
  width: 100%;
  padding: 0.75rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
}

input:focus,
.composer textarea:focus {
  outline: 2px solid oklch(0.75 0.12 155);
  outline-offset: 1px;
  border-color: oklch(0.75 0.12 155);
}

button, .attach-btn {
  font: inherit;
  cursor: pointer;
}

.primary {
  margin-top: 1.25rem;
  width: 100%;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: var(--radius);
  background: var(--green-accent);
  color: #fff;
  font-weight: 600;
  transition: background 0.15s ease;
}

.primary:hover { background: var(--green-accent-hover); }

.primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.link {
  margin-top: 0.75rem;
  background: none;
  border: none;
  color: var(--green-accent);
  font-weight: 500;
  text-decoration: underline;
  padding: 0;
  width: 100%;
  text-align: center;
}

.error {
  margin-top: 0.75rem;
  color: var(--danger);
  background: oklch(0.97 0.02 27);
  border: 1px solid oklch(0.88 0.08 27);
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.notice {
  margin: 0.75rem 0 0;
  color: oklch(0.35 0.1 155);
  background: oklch(0.96 0.03 155);
  border: 1px solid oklch(0.85 0.06 155);
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius);
  line-height: 1.45;
  font-size: 0.88rem;
}

.pay-invoice-banner {
  border-color: oklch(0.75 0.08 155);
  background: oklch(0.97 0.04 155);
}

.pay-invoice-banner strong {
  font-weight: 700;
}

/* ─── Chat shell ─────────────────────────────────────────────────────── */

.chat-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  background: var(--green-bg);
}

.chat-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--green-header);
  color: #fff;
  box-shadow: 0 2px 8px oklch(0.2 0.06 155 / 25%);
}

.chat-header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.chat-avatar {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  background: var(--green-avatar);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.chat-title {
  min-width: 0;
}

.chat-title .name {
  font-weight: 600;
  line-height: 1.2;
  font-size: 0.95rem;
}

.chat-title .subtitle {
  font-size: 0.7rem;
  opacity: 0.82;
  line-height: 1.3;
}

.chat-header-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  color: #fff;
  transition: background 0.15s ease;
}

.icon-btn:hover {
  background: oklch(1 0 0 / 12%);
}

.icon-btn svg {
  width: 1.1rem;
  height: 1.1rem;
}

.notif-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 999px;
  background: #ef4444;
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
}

.notif-wrap {
  position: relative;
}

.wallet-strip {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: oklch(0.98 0.02 155);
  border-bottom: 1px solid oklch(0.9 0.03 155);
  overflow-x: auto;
}

.wallet-icon {
  flex-shrink: 0;
  font-size: 0.9rem;
  opacity: 0.7;
}

.wallet-pill {
  flex-shrink: 0;
  font-size: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
}

.wallet-pill strong {
  font-weight: 700;
  margin-right: 0.25rem;
}

.status-bar {
  flex-shrink: 0;
  margin: 0.75rem 1rem 0;
  padding: 0.65rem 0.75rem;
  background: oklch(0.98 0.04 85);
  border: 1px solid oklch(0.88 0.08 85);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: oklch(0.45 0.1 85);
  line-height: 1.45;
}

.notifications-panel {
  flex-shrink: 0;
  max-height: 36vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  box-shadow: 0 4px 12px oklch(0 0 0 / 6%);
}

.notifications-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem 0.5rem;
}

.notifications-head h2 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
}

.notifications-list {
  overflow-y: auto;
  padding: 0 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.notification-item {
  background: oklch(0.98 0.005 155);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
  text-align: left;
  width: 100%;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.notification-item:hover {
  border-color: oklch(0.75 0.12 155);
}

.notification-item.unread {
  border-color: oklch(0.75 0.12 155);
  background: oklch(0.96 0.04 155);
}

.notification-item h3 {
  margin: 0 0 0.35rem;
  font-size: 0.9rem;
}

.notification-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.4;
  white-space: pre-wrap;
}

.notification-item time {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.7rem;
  color: oklch(0.65 0.03 260);
}

.notifications-empty {
  margin: 0;
  padding: 0 1rem 1rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.messages {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior-y: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 0;
  background-image: var(--dot-pattern);
  background-size: 18px 18px;
}

.messages-inner {
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.bubble-row {
  display: flex;
  width: 100%;
}

.bubble-row.user { justify-content: flex-end; }
.bubble-row.bot { justify-content: flex-start; }

.bubble {
  max-width: 85%;
  padding: 0.65rem 0.85rem;
  border-radius: 1rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.9rem;
  box-shadow: 0 1px 2px oklch(0 0 0 / 6%);
}

.bubble.bot {
  background: var(--surface);
  color: var(--text);
  border-bottom-left-radius: 0.25rem;
}

.bubble.bot strong { font-weight: 700; }

.bubble-link {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--green);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.bubble-link:hover { opacity: 0.85; }

.bubble.user {
  background: var(--green-user-bubble);
  color: #fff;
  border-bottom-right-radius: 0.25rem;
}

.typing-indicator {
  align-self: flex-start;
  background: var(--surface);
  border-radius: 1rem;
  border-bottom-left-radius: 0.25rem;
  padding: 0.65rem 0.85rem;
  box-shadow: 0 1px 2px oklch(0 0 0 / 6%);
  display: inline-flex;
  gap: 0.25rem;
  align-items: center;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--muted);
  animation: typing-bounce 1s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.15s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.3s; }

@keyframes typing-bounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.45; }
  40% { transform: translateY(-4px); opacity: 1; }
}

.quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.5rem 1rem 0;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

.chat-footer {
  flex-shrink: 0;
  background: var(--green-footer);
  border-top: 1px solid oklch(0.9 0.03 155);
  padding-bottom: env(safe-area-inset-bottom);
}

.composer {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

.composer textarea {
  flex: 1;
  margin: 0;
  min-height: 44px;
  max-height: 120px;
  resize: none;
  line-height: 1.4;
}

.attach-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--muted);
}

.attach-btn svg {
  width: 1.15rem;
  height: 1.15rem;
}

.send-btn {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  margin-top: 0;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: var(--green-accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.send-btn:hover { background: var(--green-accent-hover); }

.send-btn svg {
  width: 1.1rem;
  height: 1.1rem;
}

.chip {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  color: var(--text);
  box-shadow: 0 1px 2px oklch(0 0 0 / 4%);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.chip:hover {
  border-color: oklch(0.75 0.12 155);
  background: oklch(0.98 0.02 155);
}

@media (min-width: 768px) {
  .messages { padding: 1.5rem; }
  .composer { padding: 0.85rem 1.25rem; }
}