* {
  box-sizing: border-box;
  font-family: 'Segoe UI', 'Roboto', sans-serif;
}

body {
  margin: 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
}

/* HERO SECTION  */
.mentorshipform-hero {
  margin-top: 80px;
  padding: clamp(60px, 8vw, 100px) 20px;
  background: linear-gradient(180deg, #101C35 10%, #D4A643 100%);
  text-align: center;
}

.mentorshipform-hero h1 {
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  max-width: 900px;
  margin: 0 auto 20px;
  line-height: 1.2;
}

.mentorshipform-hero p {
  color: #cbd5e1;
  max-width: 780px;
  margin: 0 auto;
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  line-height: 1.7;
}

/* MAIN CONTENT */
.overlay {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: clamp(30px, 5vw, 50px);
  padding-bottom: clamp(30px, 5vw, 50px);
  background: #f5f7fa;
}

.mentorship-card {
  width: clamp(350px, 95%, 800px);
  max-width: 95%;
  background: #ffffff;
  padding: clamp(20px, 4vw, 25px) clamp(20px, 4vw, 30px);
  border-radius: 16px;
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(212, 166, 67, 0.1);
}

/* Card Header */
.card-header {
  text-align: center;
  margin-bottom: clamp(15px, 3vw, 20px);
  padding-bottom: clamp(10px, 2vw, 15px);
  border-bottom: 2px solid #f0f0f0;
}

.card-header h2 {
  font-size: clamp(1.2rem, 3vw, 22px);
  font-weight: 700;
  color: #1a1a2e;
  margin: 0 0 5px 0;
}

.header-subtitle {
  font-size: clamp(0.8rem, 2vw, 13px);
  color: #666;
  margin: 0;
}

/* Form Layout */
.mentorship-form {
  display: flex;
  gap: clamp(15px, 3vw, 25px);
}

.left,
.right {
  flex: 1;
}

/* Field Group */
.field-group {
  margin-bottom: 8px;
}

.field {
  flex: 1;
  margin-bottom: 8px;
}

.field label {
  font-size: clamp(0.85rem, 2vw, 14px);
  font-weight: 600;
  color: #333;
  display: block;
  margin-bottom: 8px;
  padding-left: 4px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: clamp(10px, 2vw, 14px) clamp(12px, 2vw, 16px);
  border-radius: 12px;
  border: 2px solid #e5e5e5;
  font-size: clamp(0.85rem, 2vw, 15px);
  transition: all 0.3s ease;
  background: #fafafa;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: #d4a437;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(212, 166, 67, 0.1);
}

.field input::placeholder,
.field textarea::placeholder {
  color: #aaa;
}

textarea {
  height: clamp(100px, 15vw, 130px);
  resize: vertical;
  line-height: 1.5;
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

/* Calendar */
.calendar-box {
  margin-top: 15px;
}

.calendar-box .field-group {
  margin-bottom: 12px;
}

.calendar {
  margin-top: 8px;
  border: 2px solid #e5e5e5;
  border-radius: 16px;
  padding: clamp(12px, 2vw, 20px);
  background: #fafafa;
}

.cal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: clamp(10px, 2vw, 15px);
}

.month-display {
  font-size: clamp(0.9rem, 2vw, 16px);
  font-weight: 700;
  color: #333;
}

.nav-btn {
  border: none;
  background: #fff;
  width: clamp(28px, 5vw, 36px);
  height: clamp(28px, 5vw, 36px);
  border-radius: 10px;
  font-size: clamp(16px, 3vw, 22px);
  cursor: pointer;
  transition: all 0.3s ease;
  color: #666;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.nav-btn:hover {
  background: #d4a437;
  color: #fff;
  transform: scale(1.1);
}

.days,
.dates {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: clamp(4px, 1vw, 8px);
  text-align: center;
}

.days span {
  font-size: clamp(10px, 2vw, 12px);
  font-weight: 600;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.dates span {
  width: clamp(28px, 5vw, 42px);
  height: clamp(28px, 5vw, 42px);
  line-height: clamp(28px, 5vw, 42px);
  border-radius: 12px;
  cursor: pointer;
  font-size: clamp(12px, 2vw, 14px);
  font-weight: 500;
  transition: all 0.2s ease;
  background: #fff;
}

.dates span:hover {
  background: rgba(212, 166, 67, 0.15);
  color: #d4a437;
  transform: scale(1.05);
}

.dates span.active,
.dates span.selected {
  background: #d4a437;
  color: #fff;
  box-shadow: 0 4px 12px rgba(212, 166, 67, 0.4);
}

.dates span.disabled {
  color: #ccc;
  cursor: not-allowed;
}

/* Time */
.time-box {
  margin-top: 20px;
}

.time-box .field-group {
  margin-bottom: 12px;
}

.time-slots {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(6px, 1.5vw, 10px);
  max-height: 200px;
  overflow-y: auto;
  padding: 5px;
}

.time-slots::-webkit-scrollbar {
  width: 6px;
}

.time-slots::-webkit-scrollbar-thumb {
  background: #d4a437;
  border-radius: 10px;
}

.time-slots::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

.time-slots button {
  padding: clamp(8px, 2vw, 12px) clamp(4px, 1.5vw, 8px);
  border-radius: 12px;
  border: 2px solid #e5e5e5;
  background: #fff;
  cursor: pointer;
  font-size: clamp(11px, 2vw, 13px);
  font-weight: 500;
  transition: all 0.3s ease;
  color: #444;
}

.time-slots button:hover {
  border-color: #d4a437;
  color: #d4a437;
  background: rgba(212, 166, 67, 0.08);
}

.time-slots button.active,
.time-slots button.selected {
  background: #d4a437;
  border-color: #d4a437;
  color: #fff;
  box-shadow: 0 4px 12px rgba(212, 166, 67, 0.3);
}

/* Payment Section */
.payment-section {
  margin-top: clamp(20px, 4vw, 25px);
  padding-top: clamp(15px, 3vw, 20px);
  border-top: 2px solid #f0f0f0;
}

.payment-section h3 {
  font-size: clamp(0.9rem, 2.5vw, 16px);
  font-weight: 700;
  color: #1a1a2e;
  margin: 0 0 clamp(10px, 2.5vw, 15px) 0;
}

.payment-options {
  display: flex;
  gap: clamp(8px, 2vw, 12px);
  flex-wrap: wrap;
}

.payment-option {
  cursor: pointer;
  position: relative;
  flex: 1;
  min-width: clamp(100px, 20vw, 120px);
}

.payment-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.payment-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(10px, 2vw, 14px) clamp(12px, 2vw, 16px);
  background: #fff;
  border: 2px solid #e5e5e5;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.payment-option input[type="radio"]:checked+.payment-card {
  border-color: #d4a437;
  background: rgba(212, 166, 67, 0.08);
}

.payment-option input[type="radio"]:checked+.payment-card .payment-text {
  color: #d4a437;
}

.payment-card:hover {
  border-color: #d4a437;
}

.payment-text {
  font-size: clamp(12px, 2vw, 14px);
  font-weight: 600;
  color: #333;
}

/* Agree Section */
.agree-section {
  margin-top: clamp(20px, 4vw, 25px);
}

.agree-card {
  background: linear-gradient(135deg, #fffcf5 0%, #fff 100%);
  border: 2px solid rgba(212, 166, 67, 0.2);
  border-radius: 16px;
  padding: clamp(14px, 3vw, 20px) clamp(16px, 3vw, 24px);
}

.checkbox-container {
  display: flex;
  align-items: flex-start;
  gap: clamp(10px, 2.5vw, 16px);
  cursor: pointer;
}

.checkbox-container input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  flex-shrink: 0;
  width: clamp(20px, 3vw, 24px);
  height: clamp(20px, 3vw, 24px);
  min-width: clamp(20px, 3vw, 24px);
  border: 2px solid #ddd;
  border-radius: 8px;
  background: #fff;
  position: relative;
  transition: all 0.3s ease;
  margin-top: 2px;
}

.checkmark::after {
  content: '✓';
  position: absolute;
  display: none;
  left: clamp(4px, 1vw, 6px);
  top: clamp(-1px, 0.5vw, 0px);
  font-size: clamp(11px, 2vw, 15px);
  color: #fff;
  font-weight: bold;
}

.checkbox-container input[type="checkbox"]:checked~.checkmark {
  background: linear-gradient(135deg, #d4a437 0%, #e8c06a 100%);
  border-color: #d4a437;
  box-shadow: 0 4px 12px rgba(212, 166, 67, 0.3);
}

.checkbox-container input[type="checkbox"]:checked~.checkmark::after {
  display: block;
}

.checkbox-container:hover input[type="checkbox"]~.checkmark {
  border-color: #d4a437;
}

.agree-text {
  font-size: clamp(12px, 2vw, 14px);
  line-height: 1.7;
  color: #555;
}

.agree-text b {
  color: #333;
}

.agree-text .highlight {
  color: #d4a437;
  font-weight: 700;
}

/* Book Button */
.book-btn {
  cursor: pointer;
  margin-top: clamp(20px, 4vw, 30px);
  width: 100%;
  padding: clamp(14px, 3vw, 18px) clamp(16px, 3vw, 28px);
  background: linear-gradient(135deg, #d4a437 0%, #e8c06a 50%, #d4a437 100%);
  background-size: 200% 200%;
  border: none;
  border-radius: 16px;
  color: #fff;
  font-size: clamp(14px, 2.5vw, 17px);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: all 0.3s ease;
  box-shadow: 0 6px 20px rgba(212, 166, 67, 0.4);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-icon {
  font-size: clamp(18px, 3vw, 22px);
}

.btn-text {
  color: #fff;
}

.book-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(212, 166, 67, 0.5);
  background-position: 100% 0;
}

.book-btn:active {
  transform: translateY(-1px) scale(0.99);
  box-shadow: 0 4px 15px rgba(212, 166, 67, 0.4);
}

/* RESPONSIVE STYLES */

/* Tablet (769px - 992px) */
@media (max-width: 992px) {
  .mentorshipform-hero {
    padding: clamp(50px, 6vw, 80px) 5% clamp(40px, 5vw, 60px);
  }

  .overlay {
    padding-top: clamp(25px, 4vw, 40px);
    padding-bottom: clamp(25px, 4vw, 40px);
  }

  .mentorship-card {
    padding: clamp(20px, 3vw, 30px);
  }

  .mentorship-form {
    gap: 20px;
  }

  .time-slots {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
}

/* Mobile Navigation (up to 768px) */
@media (max-width: 768px) {
  .mentorshipform-hero {
    margin-top: 70px;
    padding: clamp(40px, 6vw, 60px) 5% clamp(30px, 4vw, 40px);
  }

  .mentorshipform-hero h1 {
    font-size: clamp(1.6rem, 5vw, 2.2rem);
  }

  .overlay {
    padding-top: clamp(20px, 4vw, 30px);
    padding-bottom: clamp(20px, 4vw, 30px);
    padding-left: 15px;
    padding-right: 15px;
  }

  .mentorship-card {
    padding: clamp(18px, 3vw, 25px) clamp(16px, 3vw, 22px);
    border-radius: 20px;
  }

  .card-header {
    margin-bottom: clamp(18px, 3vw, 25px);
    padding-bottom: clamp(12px, 2.5vw, 20px);
  }

  .mentorship-form {
    flex-direction: column;
    gap: clamp(18px, 3vw, 25px);
  }

  .left,
  .right {
    width: 100%;
  }

  .field-group {
    flex-direction: column;
    gap: 8px;
  }

  .field label {
    font-size: clamp(12px, 2.5vw, 14px);
    margin-bottom: 6px;
  }

  .field input,
  .field select,
  .field textarea {
    padding: clamp(10px, 2vw, 12px) clamp(10px, 2vw, 14px);
    font-size: clamp(13px, 2.5vw, 14px);
  }

  textarea {
    height: clamp(90px, 12vw, 110px);
  }

  .calendar {
    padding: clamp(10px, 2vw, 15px);
  }

  .dates span {
    width: clamp(28px, 5vw, 36px);
    height: clamp(28px, 5vw, 36px);
    line-height: clamp(28px, 5vw, 36px);
    font-size: clamp(11px, 2.5vw, 13px);
  }

  .time-slots {
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(6px, 1.5vw, 8px);
  }

  .time-slots button {
    padding: clamp(8px, 2vw, 10px) clamp(4px, 1.5vw, 6px);
    font-size: clamp(11px, 2.5vw, 12px);
  }

  .payment-section {
    margin-top: clamp(18px, 3vw, 25px);
  }

  .payment-options {
    flex-direction: column;
    gap: clamp(8px, 2vw, 12px);
  }

  .payment-option {
    width: 100%;
  }

  .payment-card {
    flex-direction: row;
    justify-content: flex-start;
    padding: clamp(12px, 2.5vw, 16px) clamp(14px, 2.5vw, 20px);
    gap: clamp(10px, 2.5vw, 15px);
  }

  .agree-card {
    padding: clamp(12px, 2.5vw, 16px) clamp(14px, 2.5vw, 18px);
  }

  .checkbox-container {
    gap: clamp(10px, 2vw, 12px);
  }

  .checkmark {
    width: clamp(18px, 3vw, 22px);
    height: clamp(18px, 3vw, 22px);
    min-width: clamp(18px, 3vw, 22px);
  }

  .agree-text {
    font-size: clamp(12px, 2.5vw, 13px);
    line-height: 1.6;
  }

  .book-btn {
    margin-top: clamp(18px, 3vw, 25px);
    padding: clamp(12px, 2.5vw, 16px) clamp(14px, 2.5vw, 20px);
    font-size: clamp(13px, 2.5vw, 15px);
  }
}

/* Small Mobile (up to 480px) */
@media (max-width: 480px) {
  .mentorshipform-hero {
    margin-top: 60px;
    padding: clamp(35px, 5vw, 50px) 4% clamp(25px, 4vw, 30px);
  }

  .mentorshipform-hero h1 {
    font-size: clamp(1.4rem, 5vw, 1.7rem);
  }

  .mentorshipform-hero p {
    font-size: clamp(0.85rem, 2vw, 0.95rem);
  }

  .overlay {
    padding-top: clamp(15px, 3vw, 20px);
    padding-bottom: clamp(15px, 3vw, 20px);
    padding-left: 10px;
    padding-right: 10px;
  }

  .mentorship-card {
    padding: clamp(14px, 3vw, 20px) clamp(12px, 3vw, 18px);
    border-radius: 16px;
  }

  .header-subtitle {
    font-size: clamp(0.75rem, 2vw, 13px);
  }

  .field input,
  .field select,
  .field textarea {
    padding: clamp(9px, 2vw, 11px) clamp(9px, 2vw, 12px);
    font-size: clamp(12px, 2.5vw, 14px);
  }

  textarea {
    height: clamp(80px, 12vw, 100px);
  }

  .calendar {
    padding: clamp(8px, 2vw, 12px);
  }

  .cal-header {
    margin-bottom: clamp(8px, 2vw, 12px);
  }

  .nav-btn {
    width: clamp(24px, 5vw, 32px);
    height: clamp(24px, 5vw, 32px);
    font-size: clamp(14px, 3vw, 18px);
  }

  .days span {
    font-size: clamp(9px, 2vw, 11px);
  }

  .dates span {
    width: clamp(24px, 5vw, 32px);
    height: clamp(24px, 5vw, 32px);
    line-height: clamp(24px, 5vw, 32px);
    font-size: clamp(10px, 2.5vw, 12px);
  }

  .time-slots {
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(5px, 1.5vw, 8px);
  }

  .time-slots button {
    padding: clamp(8px, 2vw, 10px) clamp(4px, 1.5vw, 8px);
    font-size: clamp(10px, 2.5vw, 12px);
    border-radius: 10px;
  }

  .payment-card {
    padding: clamp(10px, 2.5vw, 14px) clamp(12px, 2.5vw, 16px);
  }

  .payment-text {
    font-size: clamp(12px, 2.5vw, 14px);
  }

  .agree-text {
    font-size: clamp(11px, 2vw, 12px);
  }

  .checkmark {
    width: clamp(16px, 3vw, 20px);
    height: clamp(16px, 3vw, 20px);
    min-width: clamp(16px, 3vw, 20px);
  }

  .checkmark::after {
    left: clamp(3px, 1vw, 5px);
    font-size: clamp(10px, 2vw, 13px);
  }

  .book-btn {
    margin-top: clamp(15px, 3vw, 20px);
    padding: clamp(12px, 2.5vw, 14px) clamp(12px, 2.5vw, 16px);
    font-size: clamp(12px, 2.5vw, 14px);
    border-radius: 12px;
  }

  .btn-icon {
    font-size: clamp(16px, 3vw, 18px);
  }
}