/* ═══════════════════════════════════════════════════
   MH-SET COURSE ADMISSION FORM — UPDATED STYLESHEET
   Multi-step · Light Header · Poppins · Clean UX
═══════════════════════════════════════════════════ */

/* ── ROOT VARIABLES ── */
:root {
  --bg-main: #f4faf9;
  --bg-section: #ffffff;

  --text-primary: #2a3a3f;
  --text-secondary: #5f7a80;
  --text-muted: #8fa3a8;

  --primary: #3aafa0;
  --primary-light: rgba(58, 175, 160, 0.08);
  --primary-hover: #2f9c8f;

  --accent: #ffb86b;
  --accent-hover: #ffa94d;

  --green: #4caf82;
  --purple: #8b7cf8;
  --rose: #f26b8a;
  --orange: #ff7043;

  --border: rgba(58, 175, 160, 0.14);
  --border-light: rgba(95, 122, 128, 0.13);

  --shadow-sm: 0 2px 12px rgba(42, 58, 63, 0.06);
  --shadow-md: 0 6px 28px rgba(42, 58, 63, 0.1);
  --shadow-card: 0 2px 20px rgba(42, 58, 63, 0.07);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;

  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── RESET ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Poppins", sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ════════════════════════════════════
   LIGHT HEADER
════════════════════════════════════ */
.form-header {
  background: #ffffff;
  border-bottom: 1px solid rgba(58, 175, 160, 0.12);
  padding: 18px 0 0;
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: 0 2px 16px rgba(42, 58, 63, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
}

/* Brand */
.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #fff;
  flex-shrink: 0;
}
.brand-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}
.brand-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* Step counter */
.header-step-counter {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 6px 14px;
}
.step-counter-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
}
.step-counter-num {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
}
.step-of {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Progress bar */
.progress-wrap {
  padding-bottom: 0;
}
.progress-track {
  height: 4px;
  background: rgba(58, 175, 160, 0.12);
  border-radius: 2px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Step labels under progress bar */
.step-labels {
  display: flex;
  justify-content: space-between;
  padding: 8px 0 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.step-labels::-webkit-scrollbar {
  display: none;
}

.sl-item {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  padding: 0 4px;
  cursor: default;
  transition: color 0.25s;
  flex: 1;
  text-align: center;
}
.sl-item.active {
  color: var(--primary);
  font-weight: 700;
}
.sl-item.completed {
  color: var(--green);
  font-weight: 600;
}

/* ════════════════════════════════════
   MAIN AREA
════════════════════════════════════ */
.form-main {
  padding: 32px 0 120px;
  min-height: calc(100vh - 100px);
}
@media (max-width: 768px) {
  .form-main {
    padding: 20px 0 140px;
  }
}

/* ════════════════════════════════════
   MULTI-STEP: FORM STEPS
════════════════════════════════════ */
.form-step {
  display: none;
  animation: stepFadeIn 0.35s ease forwards;
}
.form-step.active {
  display: block;
}

@keyframes stepFadeIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes stepFadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes stepFadeInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.form-step.slide-in-right {
  animation: stepFadeInRight 0.32s ease forwards;
}
.form-step.slide-in-left {
  animation: stepFadeInLeft 0.32s ease forwards;
}

/* ════════════════════════════════════
   FORM CARDS
════════════════════════════════════ */
.form-card {
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
  border: 1px solid var(--border);
  overflow: hidden;
}

.card-header-custom {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 24px 28px 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(
    135deg,
    rgba(58, 175, 160, 0.03) 0%,
    transparent 100%
  );
}
@media (max-width: 576px) {
  .card-header-custom {
    padding: 18px 18px 16px;
  }
}

.section-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
  background: linear-gradient(
    135deg,
    rgba(58, 175, 160, 0.12),
    rgba(58, 175, 160, 0.06)
  );
  color: var(--primary);
}
.accent-icon {
  background: linear-gradient(
    135deg,
    rgba(255, 184, 107, 0.15),
    rgba(255, 184, 107, 0.07)
  );
  color: var(--accent);
}
.green-icon {
  background: linear-gradient(
    135deg,
    rgba(76, 175, 130, 0.15),
    rgba(76, 175, 130, 0.07)
  );
  color: var(--green);
}
.orange-icon {
  background: linear-gradient(
    135deg,
    rgba(255, 112, 67, 0.12),
    rgba(255, 112, 67, 0.06)
  );
  color: var(--orange);
}
.purple-icon {
  background: linear-gradient(
    135deg,
    rgba(139, 124, 248, 0.12),
    rgba(139, 124, 248, 0.06)
  );
  color: var(--purple);
}
.teal-icon {
  background: linear-gradient(
    135deg,
    rgba(58, 175, 160, 0.12),
    rgba(58, 175, 160, 0.06)
  );
  color: var(--primary);
}
.rose-icon {
  background: linear-gradient(
    135deg,
    rgba(242, 107, 138, 0.12),
    rgba(242, 107, 138, 0.06)
  );
  color: var(--rose);
}

.section-num {
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 3px;
}
.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 4px;
  line-height: 1.3;
}
.section-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0;
  font-weight: 400;
  line-height: 1.5;
}

.card-body-custom {
  padding: 26px 28px 28px;
}
@media (max-width: 576px) {
  .card-body-custom {
    padding: 18px;
  }
}

/* ════════════════════════════════════
   FORM LABELS & INPUTS
════════════════════════════════════ */
.form-label-custom {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  margin-bottom: 7px;
  display: block;
  text-transform: uppercase;
}
.req {
  color: #e74c3c;
  margin-left: 2px;
}
.opt-tag {
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(143, 163, 168, 0.1);
  padding: 2px 7px;
  border-radius: 50px;
  margin-left: 5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  vertical-align: middle;
}

.input-wrap {
  position: relative;
}
.input-icon {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  z-index: 2;
  pointer-events: none;
  transition: color 0.2s;
}
.input-wrap:focus-within .input-icon {
  color: var(--primary);
}

.input-field {
  width: 100%;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 12px 14px 12px 40px;
  font-family: "Poppins", sans-serif;
  font-size: 0.88rem;
  color: var(--text-primary);
  background: #fafcfc;
  transition: var(--transition);
  outline: none;
  appearance: none;
}
.input-field::placeholder {
  color: var(--text-muted);
  font-size: 0.83rem;
}
.input-field:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(58, 175, 160, 0.1);
}
.input-field.is-invalid {
  border-color: #e74c3c;
  box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.08);
}
.invalid-feedback {
  font-size: 0.72rem;
  color: #e74c3c;
  margin-top: 4px;
  display: none;
  font-weight: 500;
}
.was-validated .input-field:invalid ~ .invalid-feedback,
.input-field.is-invalid ~ .invalid-feedback {
  display: block;
}

.invalid-msg {
  font-size: 0.72rem;
  color: #e74c3c;
  margin-top: 6px;
  font-weight: 500;
}

.textarea-field {
  padding-top: 12px !important;
  resize: vertical;
  min-height: 88px;
}

select.input-field {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238FA3A8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
  cursor: pointer;
}
select.input-field optgroup {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* ════════════════════════════════════
   RADIO CARDS
════════════════════════════════════ */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.radio-card {
  cursor: pointer;
}
.radio-card input[type="radio"] {
  display: none;
}
.radio-ui {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-light);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: #fafcfc;
  transition: var(--transition);
  white-space: nowrap;
}
.radio-ui i {
  font-size: 0.95rem;
}
.radio-card input:checked ~ .radio-ui {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  box-shadow: 0 0 0 2px rgba(58, 175, 160, 0.1);
  font-weight: 600;
}
.radio-card:hover .radio-ui {
  border-color: var(--primary);
  color: var(--primary);
}
.small-radio .radio-ui {
  padding: 9px 14px;
  font-size: 0.8rem;
}

/* ════════════════════════════════════
   SAME ADDRESS
════════════════════════════════════ */
.same-addr-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  flex-wrap: wrap;
  gap: 8px;
}
.same-check-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
}
.same-check {
  width: 15px;
  height: 15px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* ════════════════════════════════════
   COURSE SELECTION CARDS
════════════════════════════════════ */
.course-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.course-card {
  cursor: pointer;
}
.course-check {
  display: none;
}
.course-card-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-light);
  background: #fafcfc;
  transition: var(--transition);
  position: relative;
}
.course-check:checked ~ .course-card-inner {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 3px 16px rgba(58, 175, 160, 0.12);
}
.course-card:hover .course-card-inner {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.course-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(58, 175, 160, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--primary);
  flex-shrink: 0;
}
.course-check:checked ~ .course-card-inner .course-icon-wrap {
  background: rgba(58, 175, 160, 0.2);
}
.course-info {
  flex: 1;
}
.course-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}
.course-desc-txt {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin: 0;
}
.popular-tag {
  font-size: 0.6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #ff8c38);
  color: #fff;
  padding: 2px 7px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  vertical-align: middle;
}
.combo-card .course-card-inner {
  border-color: rgba(255, 184, 107, 0.25);
  background: rgba(255, 184, 107, 0.04);
}
.combo-card .course-icon-wrap {
  background: rgba(255, 184, 107, 0.12);
  color: var(--accent);
}
.combo-card .course-check:checked ~ .course-card-inner {
  border-color: var(--accent);
}
.course-tick {
  font-size: 1.1rem;
  color: var(--text-muted);
  opacity: 0;
  transform: scale(0.5);
  transition: var(--transition);
  flex-shrink: 0;
}
.course-check:checked ~ .course-card-inner .course-tick {
  color: var(--primary);
  opacity: 1;
  transform: scale(1);
}

/* ════════════════════════════════════
   PAYMENT MODES
════════════════════════════════════ */
.payment-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.pay-mode-card {
  cursor: pointer;
}
.pay-mode-card input {
  display: none;
}
.pay-ui {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-light);
  font-size: 0.73rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: #fafcfc;
  transition: var(--transition);
  min-width: 72px;
}
.pay-ui i {
  font-size: 1.2rem;
}
.pay-mode-card input:checked ~ .pay-ui {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  box-shadow: 0 0 0 2px rgba(58, 175, 160, 0.1);
}
.pay-mode-card:hover .pay-ui {
  border-color: var(--primary);
  color: var(--primary);
}

/* ════════════════════════════════════
   QR CODE
════════════════════════════════════ */
.qr-block {
  background: linear-gradient(
    135deg,
    rgba(58, 175, 160, 0.05) 0%,
    rgba(255, 184, 107, 0.05) 100%
  );
  border: 1.5px dashed rgba(58, 175, 160, 0.25);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}
.qr-label-top {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.qr-placeholder {
  width: 140px;
  height: 140px;
  background: rgba(58, 175, 160, 0.07);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  gap: 6px;
  border: 2px solid rgba(58, 175, 160, 0.12);
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.06em;
}
.qr-placeholder i {
  font-size: 2.5rem;
  color: var(--primary);
}
.qr-upi-id {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.qr-upi-id i {
  color: var(--primary);
}
.qr-note {
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* ════════════════════════════════════
   UPLOAD ZONES
════════════════════════════════════ */
.upload-zone {
  border: 2px dashed rgba(58, 175, 160, 0.22);
  border-radius: var(--radius-md);
  background: #fafcfc;
  transition: var(--transition);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.upload-zone:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: var(--shadow-sm);
}
.upload-zone.drag-over {
  border-color: var(--primary);
  background: rgba(58, 175, 160, 0.1);
  transform: scale(1.02);
}
.upload-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 3;
}
.upload-ui {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 22px 14px;
  text-align: center;
  pointer-events: none;
}
.upload-icon-wrap {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: rgba(58, 175, 160, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 2px;
}
.upload-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}
.upload-hint {
  font-size: 0.67rem;
  color: var(--text-muted);
}
.upload-btn {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 50px;
  background: rgba(58, 175, 160, 0.1);
  color: var(--primary);
  letter-spacing: 0.03em;
}
.upload-preview {
  position: absolute;
  inset: 0;
  background: var(--bg-section);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 14px;
  z-index: 2;
}
.preview-img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 2px solid rgba(58, 175, 160, 0.18);
}
.pdf-prev-icon {
  font-size: 2.5rem;
  color: #e74c3c;
}
.preview-name {
  font-size: 0.67rem;
  color: var(--text-secondary);
  font-weight: 600;
  text-align: center;
  word-break: break-all;
  max-width: 100%;
}
.remove-file {
  position: absolute;
  top: 8px;
  right: 8px;
  background: none;
  border: none;
  font-size: 1.1rem;
  color: #e74c3c;
  cursor: pointer;
  z-index: 4;
  padding: 0;
  transition: transform 0.2s;
}
.remove-file:hover {
  transform: scale(1.15);
}

/* ════════════════════════════════════
   DECLARATION
════════════════════════════════════ */
.declaration-card {
  border: 1.5px solid rgba(58, 175, 160, 0.15);
  background: linear-gradient(
    135deg,
    rgba(58, 175, 160, 0.03) 0%,
    rgba(255, 184, 107, 0.02) 100%
  );
}
.declaration-inner {
  display: flex;
  gap: 16px;
  padding: 24px 28px;
  align-items: flex-start;
}
@media (max-width: 576px) {
  .declaration-inner {
    padding: 18px;
    gap: 12px;
  }
}
.decl-icon {
  font-size: 1.8rem;
  color: var(--primary);
  flex-shrink: 0;
  padding-top: 2px;
}
.decl-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.decl-text {
  font-size: 0.81rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 14px;
}
.decl-check-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}
.decl-check {
  display: none;
}
.decl-checkbox-ui {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  border: 2px solid rgba(95, 122, 128, 0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  margin-top: 1px;
  background: #fff;
  font-size: 0.8rem;
  color: transparent;
}
.decl-check:checked ~ .decl-checkbox-ui {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 0 0 3px rgba(58, 175, 160, 0.12);
}
.decl-check-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  font-weight: 500;
}

/* ════════════════════════════════════
   STEP NAVIGATION BUTTONS
════════════════════════════════════ */
.step-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 4px;
  gap: 12px;
}

.btn-next,
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Poppins", sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-next {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #fff;
  box-shadow: 0 4px 16px rgba(58, 175, 160, 0.3);
  margin-left: auto;
}
.btn-next:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(58, 175, 160, 0.38);
}
.btn-next:active {
  transform: translateY(0);
}

.btn-back {
  background: #fff;
  color: var(--text-secondary);
  border: 1.5px solid var(--border-light);
}
.btn-back:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

/* Submit button */
.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #fff;
  font-family: "Poppins", sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  padding: 13px 36px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 22px rgba(58, 175, 160, 0.32);
  position: relative;
  overflow: hidden;
  margin-left: auto;
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(58, 175, 160, 0.4);
}
.btn-text,
.btn-loader {
  display: flex;
  align-items: center;
  gap: 7px;
}

.submit-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
}

/* ════════════════════════════════════
   STICKY MOBILE NAV
════════════════════════════════════ */
.sticky-mobile-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  padding: 12px 16px;
  box-shadow: 0 -3px 16px rgba(42, 58, 63, 0.1);
  z-index: 300;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.mob-step-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}
.btn-mob-action {
  font-family: "Poppins", sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.btn-mob-back {
  background: #fff;
  color: var(--text-secondary);
  border: 1.5px solid var(--border-light);
}
.btn-mob-back:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}
.btn-mob-next {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #fff;
  box-shadow: 0 3px 12px rgba(58, 175, 160, 0.28);
}
.btn-mob-next:active {
  transform: scale(0.97);
}

/* ════════════════════════════════════
   SUCCESS OVERLAY
════════════════════════════════════ */
.success-overlay {
  position: fixed;
  inset: 0;
  background: rgba(42, 58, 63, 0.65);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.success-modal {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  max-width: 440px;
  width: 100%;
  text-align: center;
  box-shadow: 0 32px 80px rgba(42, 58, 63, 0.18);
  animation: slideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes slideUp {
  from {
    transform: translateY(36px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.success-circle {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: #fff;
  margin: 0 auto 24px;
  box-shadow: 0 10px 28px rgba(58, 175, 160, 0.36);
  animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.15s both;
}
@keyframes popIn {
  from {
    transform: scale(0);
  }
  to {
    transform: scale(1);
  }
}

.success-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.success-msg {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
}
.success-ref {
  background: var(--primary-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  font-size: 0.82rem;
  color: var(--text-primary);
  margin-bottom: 24px;
  display: inline-block;
}
.btn-success-close {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #fff;
  border: none;
  font-family: "Poppins", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 12px 32px;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 5px 16px rgba(58, 175, 160, 0.28);
}
.btn-success-close:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(58, 175, 160, 0.38);
}

/* ════════════════════════════════════
   AADHAAR FORMAT
════════════════════════════════════ */
#aadhaar {
  letter-spacing: 0.06em;
}

/* ════════════════════════════════════
   SCROLLBAR
════════════════════════════════════ */
::-webkit-scrollbar {
  width: 5px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(58, 175, 160, 0.25);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* ════════════════════════════════════
   RESPONSIVE
════════════════════════════════════ */
@media (max-width: 576px) {
  .radio-group {
    gap: 8px;
  }
  .radio-ui {
    padding: 9px 12px;
    font-size: 0.78rem;
  }
  .course-cards {
    grid-template-columns: 1fr;
  }
  .payment-modes {
    gap: 8px;
  }
  .pay-ui {
    padding: 10px 12px;
    min-width: 60px;
  }
  .qr-block {
    position: static;
  }
  .btn-next,
  .btn-back {
    padding: 11px 22px;
    font-size: 0.82rem;
  }
  .btn-submit {
    padding: 12px 28px;
    font-size: 0.86rem;
  }
  .success-modal {
    padding: 32px 20px;
  }
  .success-title {
    font-size: 1.2rem;
  }
  .step-labels {
    padding: 6px 0 10px;
  }
  .sl-item {
    font-size: 0.58rem;
  }
}

@media (max-width: 400px) {
  .header-brand .brand-sub {
    display: none;
  }
  .btn-mob-action {
    padding: 9px 14px;
    font-size: 0.76rem;
  }
}