/* ==========================================================================
   TeachMate Premium - Become Tutor Page
   ========================================================================== */

.become-tutor-hero {
  padding: 72px 0 32px;
  background:
    radial-gradient(circle at top left, rgba(255, 51, 102, 0.12), transparent 32%),
    linear-gradient(180deg, #f8fbff 0%, #f8fafc 100%);
}

.become-tutor-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 28px;
  align-items: stretch;
}

.become-tutor-hero-copy,
.become-tutor-hero-panel {
  min-width: 0;
}

.become-tutor-hero-copy h1 {
  font-size: clamp(2.4rem, 4vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin-top: 18px;
  max-width: 12ch;
}

.hero-copy-text {
  margin-top: 18px;
  max-width: 58ch;
  font-size: 17px;
  color: var(--gray-500);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-badges span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 60, 214, 0.08);
  box-shadow: var(--shadow-sm);
  color: var(--gray-700);
  font-size: 13px;
  font-weight: 600;
}

.become-tutor-hero-panel {
  display: flex;
}

.hero-panel-card {
  width: 100%;
  display: grid;
  gap: 16px;
  padding: 28px;
  border-radius: 28px;
  color: var(--white);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04)),
    linear-gradient(135deg, #0a3fd4 0%, #022c8a 45%, #031b4e 100%);
  box-shadow: 0 30px 60px rgba(0, 25, 90, 0.18);
}

.hero-panel-stat {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-panel-stat strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 30px;
  line-height: 1;
  margin-bottom: 8px;
}

.hero-panel-stat span {
  display: block;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
}

.become-tutor-benefits {
  margin-bottom: 28px;
}

.benefit-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.benefit-mini-card {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 60, 214, 0.08);
  box-shadow: var(--shadow-sm);
}

.benefit-mini-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.benefit-mini-card p {
  color: var(--gray-500);
  font-size: 14px;
}

.stepper-wrap {
  max-width: 880px;
  margin: 20px auto 36px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  position: relative;
}

.stepper-wrap::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 11%;
  right: 11%;
  height: 2px;
  background: linear-gradient(90deg, rgba(0, 60, 214, 0.12), rgba(0, 60, 214, 0.04));
  z-index: 1;
}

.step-node {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 140px;
  text-align: center;
}

.step-circle {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-500);
  font-weight: 800;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.04);
  transition: var(--transition-smooth);
}

.step-text {
  margin-top: 10px;
  color: var(--gray-500);
  font-size: 13px;
  font-weight: 700;
}

.step-node.active .step-circle {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
  box-shadow: 0 0 0 8px rgba(0, 60, 214, 0.1);
}

.step-node.active .step-text,
.step-node.completed .step-text {
  color: var(--primary-color);
}

.step-node.completed .step-circle {
  background: rgba(0, 60, 214, 0.08);
  border-color: rgba(0, 60, 214, 0.24);
  color: var(--primary-color);
}

.become-tutor-main {
  margin-bottom: 90px;
}

.income-calculator-card {
  margin-bottom: 30px;
  padding: 34px;
  border-radius: 30px;
  color: var(--white);
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.14), transparent 24%),
    linear-gradient(135deg, #0d47db 0%, #04318f 48%, #063c23 100%);
  box-shadow: 0 24px 50px rgba(2, 35, 118, 0.22);
}

.income-calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 28px;
  align-items: stretch;
}

.calculator-controls h2 {
  color: var(--white);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 10px;
}

.calculator-support-text {
  max-width: 52ch;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  margin-bottom: 28px;
}

.calc-slider-group {
  margin-bottom: 28px;
}

.calc-slider-group label {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  font-weight: 700;
}

.calc-slider-group input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255, 255, 255, 0.26);
  outline: none;
}

.calc-slider-group input[type="range"]::-webkit-slider-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  background: var(--secondary-color);
  border: 3px solid var(--white);
  box-shadow: 0 6px 14px rgba(255, 51, 102, 0.28);
}

.calc-slider-group input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  cursor: pointer;
  background: var(--secondary-color);
  border: 3px solid var(--white);
  box-shadow: 0 6px 14px rgba(255, 51, 102, 0.28);
}

.calculator-footnotes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.calculator-footnotes span {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.88);
  font-size: 13px;
  font-weight: 600;
}

.calculator-result-box {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px;
  border-radius: 24px;
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(12px);
}

.result-label {
  margin-bottom: 14px;
  color: var(--secondary-color);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.result-amount {
  font-family: var(--font-heading);
  font-size: clamp(2.3rem, 4vw, 3.6rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.04em;
}

.result-amount span {
  color: rgba(255, 255, 255, 0.92);
}

.calculator-result-note {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
}

.become-tutor-form-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.become-tutor-form-aside {
  position: sticky;
  top: 120px;
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(0, 60, 214, 0.05), rgba(255, 255, 255, 0.95));
  border: 1px solid rgba(0, 60, 214, 0.08);
  box-shadow: var(--shadow-sm);
}

.become-tutor-form-aside h3 {
  font-size: 22px;
  margin-bottom: 14px;
}

.form-aside-list {
  list-style: none;
  display: grid;
  gap: 12px;
}

.form-aside-list li {
  position: relative;
  padding-left: 18px;
  color: var(--gray-700);
  font-size: 14px;
}

.form-aside-list li::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary-color);
}

.form-aside-note {
  margin-top: 18px;
  color: var(--gray-500);
  font-size: 13px;
}

.become-tutor-form-box {
  max-width: 100%;
  padding: 34px;
  border-radius: 30px;
  background: var(--white);
  border: 1px solid rgba(0, 60, 214, 0.05);
  box-shadow: var(--shadow-premium);
}

.form-alert {
  margin-bottom: 20px;
  padding: 14px 16px;
  border-radius: 16px;
  font-size: 14px;
  font-weight: 600;
}

.form-alert.is-error {
  color: #b42318;
  background: #fef3f2;
  border: 1px solid #fecdca;
}

.form-alert.is-success {
  color: #0f5132;
  background: #ecfdf3;
  border: 1px solid #abefc6;
}

.form-step-content {
  display: none;
}

.form-step-content.active {
  display: block;
  animation: fadeInUp 0.35s ease forwards;
}

.form-step-header {
  padding-bottom: 18px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--gray-100);
}

.form-step-header h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom: 6px;
}

.form-step-header p {
  color: var(--gray-500);
  font-size: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

.form-label {
  color: var(--gray-700);
  font-size: 14px;
  font-weight: 700;
}

.form-control {
  width: 100%;
  min-height: 54px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--gray-200);
  background: #fbfdff;
  color: var(--gray-700);
  font-family: var(--font-body);
  font-size: 15px;
  transition: var(--transition-smooth);
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.02);
}

.form-control::placeholder {
  color: #94a3b8;
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

select.form-control {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--gray-500) 50%),
    linear-gradient(135deg, var(--gray-500) 50%, transparent 50%);
  background-position:
    calc(100% - 22px) calc(50% - 2px),
    calc(100% - 16px) calc(50% - 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 42px;
}

.form-control:focus {
  outline: none;
  border-color: rgba(0, 60, 214, 0.4);
  box-shadow: 0 0 0 4px rgba(0, 60, 214, 0.08);
  background: var(--white);
}

.form-control.is-invalid,
.form-control:invalid.is-invalid {
  border-color: rgba(233, 70, 98, 0.8);
  box-shadow: 0 0 0 4px rgba(233, 70, 98, 0.08);
}

.form-control-file {
  padding: 12px 14px;
  background: #f8fbff;
}

.form-control-file::file-selector-button {
  margin-right: 14px;
  padding: 10px 14px;
  border: none;
  border-radius: 12px;
  background: rgba(0, 60, 214, 0.08);
  color: var(--primary-color);
  font-family: var(--font-heading);
  font-weight: 700;
  cursor: pointer;
}

.form-hint {
  color: var(--gray-500);
  font-size: 12px;
}

.pills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 4px;
}

.mode-grid {
  max-width: 420px;
}

.pill-checkbox {
  position: relative;
}

.pill-checkbox input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.pill-label {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 12px 14px;
  border-radius: 16px;
  background: #f8fbff;
  border: 1px solid var(--gray-200);
  color: var(--gray-700);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.pill-checkbox input:checked + .pill-label {
  background: linear-gradient(135deg, var(--primary-color), #235cf2);
  border-color: var(--primary-color);
  color: var(--white);
  box-shadow: 0 10px 20px rgba(0, 60, 214, 0.16);
}

.form-step-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-100);
}

.form-nav-spacer {
  flex: 1;
}

.form-step-nav .btn[disabled] {
  opacity: 0.7;
  cursor: wait;
}

@media (max-width: 1100px) {
  .become-tutor-hero-grid,
  .income-calculator-grid,
  .become-tutor-form-shell {
    grid-template-columns: 1fr;
  }

  .become-tutor-form-aside {
    position: static;
  }
}

@media (max-width: 900px) {
  .benefit-card-grid {
    grid-template-columns: 1fr;
  }

  .step-node {
    width: auto;
    flex: 1;
  }

  .stepper-wrap::before {
    left: 16%;
    right: 16%;
  }
}

@media (max-width: 700px) {
  .become-tutor-hero {
    padding-top: 52px;
  }

  .income-calculator-card,
  .become-tutor-form-box {
    padding: 22px;
    border-radius: 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .step-text {
    font-size: 12px;
  }

  .step-circle {
    width: 42px;
    height: 42px;
  }

  .form-step-nav {
    flex-wrap: wrap;
  }

  .form-nav-spacer {
    display: none;
  }

  .form-step-nav .btn {
    width: 100%;
  }
}