:root {
  --bg: #0a0c10;
  --card: #1b1f26;
  --green: #2fe36c;
  --green-deep: #22c55e;
  --green-dark: #167a3a;
  --text: #f4f7fb;
  --muted: #9aa3ad;
  --input: #151920;
  --border: #2a313c;
  --error: #ff6b6b;
  --radius-card: 18px;
  --radius-field: 10px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

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

html,
body {
  min-height: 100%;
}

body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}

.card {
  width: min(100%, 420px);
  background: var(--card);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--green);
  padding: 16px 20px;
}

.card-header h1 {
  color: #111;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
}

.badge {
  flex-shrink: 0;
  background: var(--green-dark);
  color: #0d1a12;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 6px 10px;
  border-radius: 999px;
}

.card-body,
.success {
  padding: 28px 24px 24px;
}

.intro {
  text-align: center;
  margin-bottom: 28px;
}

.intro h2,
.success h2 {
  color: var(--green);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 10px;
}

.intro p,
.success p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
  max-width: 34ch;
  margin: 0 auto;
}

.intro p strong,
.success p strong {
  color: var(--green);
  font-weight: 800;
}

.field {
  display: block;
  margin-bottom: 18px;
}

.field-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #e8edf2;
  margin-bottom: 8px;
}

.field input {
  width: 100%;
  height: 48px;
  background: var(--input);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-field);
  color: var(--text);
  font: inherit;
  font-size: 16px;
  padding: 0 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  -webkit-user-select: text;
  user-select: text;
  touch-action: manipulation;
}

.phone-field {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: 8px;
}

.phone-prefix {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 10px 0 12px;
  background: var(--input);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-field);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.phone-prefix:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 1px rgba(46, 230, 106, 0.15);
}

.phone-caret {
  font-size: 11px;
  opacity: 0.7;
  line-height: 1;
}

.phone-flag {
  display: block;
  border-radius: 2px;
}

.phone-field input {
  flex: 1;
  min-width: 0;
}

.landing-country-list[hidden] {
  display: none !important;
}

.field input::placeholder {
  color: #6d7680;
}

.field input:hover,
.phone-prefix:hover {
  border-color: #3a4350;
}

.field input:focus,
.field input.has-value:valid {
  border-color: var(--green);
  box-shadow: 0 0 0 1px rgba(46, 230, 106, 0.15);
}

.field input.invalid {
  border-color: var(--error);
}

.field-error {
  display: block;
  min-height: 0;
  color: var(--error);
  font-size: 12px;
  margin-top: 6px;
}

.submit {
  width: 100%;
  height: 50px;
  margin-top: 8px;
  border: 0;
  border-radius: 12px;
  background: var(--green);
  color: #111;
  font: inherit;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(46, 230, 106, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.submit:hover {
  filter: brightness(1.05);
  box-shadow: 0 12px 28px rgba(46, 230, 106, 0.38);
}

.submit:active {
  transform: translateY(1px);
}

.card-stats {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 14px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  line-height: 1.4;
}

.card-stats strong {
  color: var(--green);
  font-weight: 800;
}

.success {
  text-align: center;
  padding-top: 36px;
  padding-bottom: 28px;
}

.success-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(46, 230, 106, 0.12);
  color: var(--green);
  font-size: 28px;
  font-weight: 800;
}

.lang-switch {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 50;
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(27, 31, 38, 0.92);
  color: #fff;
  font: 700 13px/1 Inter, system-ui, sans-serif;
  letter-spacing: 0.04em;
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
}

.lang-switch:hover {
  border-color: var(--green);
  color: var(--green);
}

#landing[hidden],
#verify[hidden],
.page[hidden] {
  display: none !important;
}

body.flow-verify #landing {
  display: none !important;
}

.verify-page .pairing-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin: 8px 0 20px;
}

.pairing-code {
  width: 100%;
  text-align: center;
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  color: var(--green);
  background: var(--input);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-field);
  padding: 16px 12px;
  user-select: all;
}

.copy-btn {
  width: auto;
  min-width: 160px;
  padding-left: 22px;
  padding-right: 22px;
}

.wa-steps {
  list-style: decimal;
  padding-left: 1.2em;
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  text-align: left;
}

.wa-steps li {
  margin-bottom: 8px;
}

.wa-steps strong {
  color: var(--text);
}

.wa-wait {
  text-align: center;
  color: var(--green);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
}

.wa-number-line {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.change-number {
  appearance: none;
  border: 0;
  background: none;
  color: var(--green);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}

@media (max-width: 420px) {
  .card-header h1 {
    font-size: 20px;
  }

  .intro h2,
  .success h2 {
    font-size: 24px;
  }
}