/* ===== Trang đăng ký dùng thử (/dang-ky/) ===== */

.trial-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.trial-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.trial-header .nav-bar {
  height: 68px;
}

.trial-main {
  flex: 1;
  padding: clamp(48px, 7vw, 96px) 0;
}

.trial-layout {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

.trial-intro .eyebrow {
  margin-bottom: 16px;
}

.trial-intro h1 {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin-bottom: 20px;
}

.trial-intro h1 .gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.trial-intro > p {
  color: var(--color-text-secondary);
  font-size: 17px;
  line-height: 1.7;
  max-width: 46ch;
}

.trial-steps {
  list-style: none;
  margin-top: 32px;
  display: grid;
  gap: 18px;
}

.trial-steps li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.trial-steps .step-num {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
  color: var(--color-primary);
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.trial-steps strong {
  display: block;
  font-size: 15px;
  margin-bottom: 2px;
}

.trial-steps p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* Form card */

.trial-card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: clamp(28px, 4vw, 44px);
}

.trial-card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}

.trial-card__subtitle {
  color: var(--color-text-secondary);
  font-size: 14px;
  margin-bottom: 28px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-field--full {
  grid-column: 1 / -1;
}

.form-field label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text);
}

.form-field label .required {
  color: #DC2626;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-background);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-field textarea {
  resize: vertical;
  min-height: 84px;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea {
  border-color: #DC2626;
}

.field-error {
  display: none;
  color: #DC2626;
  font-size: 12.5px;
  line-height: 1.5;
}

.form-field.has-error .field-error {
  display: block;
}

.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.trial-form__actions {
  margin-top: 26px;
}

.trial-form__actions .btn {
  width: 100%;
}

.btn[disabled] {
  opacity: 0.65;
  cursor: not-allowed;
}

.form-alert {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.55;
}

.form-alert--error {
  background: #FEF2F2;
  border: 1px solid #FECACA;
  color: #B91C1C;
}

.form-alert.is-visible {
  display: block;
}

.trial-form__note {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--color-text-secondary);
  text-align: center;
}

/* Trạng thái thành công */

.trial-success {
  display: none;
  text-align: center;
  padding: 24px 8px;
}

.trial-success.is-visible {
  display: block;
}

.trial-success__icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(124, 58, 237, 0.12));
  color: var(--color-primary);
}

.trial-success h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 10px;
}

.trial-success p {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.7;
  max-width: 40ch;
  margin: 0 auto;
}

.reference-code {
  display: inline-block;
  margin: 20px auto 6px;
  padding: 10px 22px;
  background: var(--color-background-soft);
  border: 1px dashed var(--color-primary-light);
  border-radius: var(--radius-sm);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-primary-dark);
}

.trial-success small {
  display: block;
  margin-top: 6px;
  color: var(--color-text-secondary);
  font-size: 12.5px;
}

/* Footer gọn cho trang con */

.trial-footer {
  border-top: 1px solid var(--color-border);
  padding: 22px 0;
}

.trial-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--color-text-secondary);
  font-size: 13.5px;
}

@media (max-width: 1023px) {
  .trial-layout {
    grid-template-columns: 1fr;
  }

  .trial-intro > p {
    max-width: none;
  }
}

@media (max-width: 560px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}