/* ── Mentorship Booking Frontend CSS ── */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:wght@400;500;600&display=swap');

:root {
  --mb-green:   #1a7a4a;
  --mb-green-l: #e8f5ee;
  --mb-gold:    #c9920f;
  --mb-gold-l:  #fdf7e3;
  --mb-dark:    #1c2b22;
  --mb-grey:    #6b7c74;
  --mb-border:  #d9e8df;
  --mb-white:   #ffffff;
  --mb-radius:  12px;
  --mb-shadow:  0 4px 20px rgba(26,122,74,.10);
}

.mb-wrap { font-family: 'DM Sans', sans-serif; color: var(--mb-dark); max-width: 860px; margin: 0 auto; }

/* Steps */
.mb-steps { display: flex; gap: 0; margin-bottom: 32px; border-radius: var(--mb-radius); overflow: hidden; border: 1.5px solid var(--mb-border); }
.mb-step { flex: 1; padding: 14px 10px; text-align: center; font-size: 13px; font-weight: 500; color: var(--mb-grey); background: #f9fdfb; border-right: 1.5px solid var(--mb-border); transition: all .2s; }
.mb-step:last-child { border-right: none; }
.mb-step span { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background: var(--mb-border); color: var(--mb-grey); margin-right: 6px; font-size: 12px; font-weight: 600; }
.mb-step--active { background: var(--mb-green-l); color: var(--mb-green); font-weight: 600; }
.mb-step--active span { background: var(--mb-green); color: #fff; }
.mb-step--done { background: var(--mb-green); color: #fff; }
.mb-step--done span { background: rgba(255,255,255,.3); color: #fff; }

/* Panels */
.mb-panel { display: none; animation: mbFadeIn .3s ease; }
.mb-panel--active { display: block; }
@keyframes mbFadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.mb-panel__title { font-family: 'DM Serif Display', serif; font-size: 26px; margin: 0 0 6px; color: var(--mb-dark); }
.mb-panel__sub { color: var(--mb-grey); margin: 0 0 24px; font-size: 14px; }

/* Plans */
.mb-plans { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 28px; }
.mb-plan-card input { position: absolute; opacity: 0; pointer-events: none; }
.mb-plan-card { cursor: pointer; }
.mb-plan-card__inner { border: 2px solid var(--mb-border); border-radius: var(--mb-radius); padding: 24px 20px; text-align: center; transition: all .2s; background: var(--mb-white); }
.mb-plan-card input:checked ~ .mb-plan-card__inner { border-color: var(--mb-green); background: var(--mb-green-l); box-shadow: var(--mb-shadow); }
.mb-plan-card__days { font-family: 'DM Serif Display', serif; font-size: 40px; color: var(--mb-green); line-height: 1; }
.mb-plan-card__days span { font-family: 'DM Sans', sans-serif; font-size: 13px; color: var(--mb-grey); display: block; }
.mb-plan-card__label { font-weight: 600; margin: 8px 0 4px; font-size: 15px; }
.mb-plan-card__price { font-size: 22px; font-weight: 700; color: var(--mb-dark); }
.mb-plan-card__price span { font-size: 13px; color: var(--mb-grey); font-weight: 400; }
.mb-plan-card__badge { margin-top: 8px; font-size: 11px; background: var(--mb-gold-l); color: var(--mb-gold); padding: 3px 10px; border-radius: 20px; display: inline-block; font-weight: 600; }
.mb-plan-card:hover .mb-plan-card__inner { border-color: var(--mb-green); }

/* Courses */
.mb-course-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; margin-bottom: 28px; }
.mb-course-card input { position: absolute; opacity: 0; pointer-events: none; }
.mb-course-card { cursor: pointer; }
.mb-course-card__inner { border: 2px solid var(--mb-border); border-radius: var(--mb-radius); padding: 18px 14px; text-align: center; transition: all .2s; background: var(--mb-white); }
.mb-course-card input:checked ~ .mb-course-card__inner { border-color: var(--mb-green); background: var(--mb-green-l); }
.mb-course-card__icon { font-size: 28px; margin-bottom: 8px; }
.mb-course-card__title { font-size: 13px; font-weight: 600; color: var(--mb-dark); line-height: 1.4; }
.mb-course-card:hover .mb-course-card__inner { border-color: var(--mb-green); }

/* Slots */
.mb-slots-wrap { max-height: 380px; overflow-y: auto; margin-bottom: 24px; padding-right: 4px; }
.mb-day-group { margin-bottom: 20px; }
.mb-day-group__label { font-weight: 600; color: var(--mb-grey); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 10px; }
.mb-day-group__slots { display: flex; flex-wrap: wrap; gap: 8px; }
.mb-slot-btn { cursor: pointer; }
.mb-slot-btn input { position: absolute; opacity: 0; pointer-events: none; }
.mb-slot-btn input:checked + span, .mb-slot-btn:has(input:checked) { background: var(--mb-green); color: #fff; border-color: var(--mb-green); }

/* Make slot display as styled button */
.mb-slot-btn { display: inline-block; }
.mb-slot-btn input { position: absolute; opacity:0; width:0; height:0; }
.mb-day-group__slots label { display: inline-block; border: 1.5px solid var(--mb-border); border-radius: 8px; padding: 7px 14px; font-size: 13px; font-weight: 500; cursor: pointer; transition: all .15s; background: var(--mb-white); }
.mb-day-group__slots label:hover { border-color: var(--mb-green); color: var(--mb-green); }
.mb-day-group__slots label.selected { background: var(--mb-green); color: #fff; border-color: var(--mb-green); }

/* Summary */
.mb-summary { background: var(--mb-green-l); border: 1.5px solid var(--mb-border); border-radius: var(--mb-radius); padding: 24px; margin-bottom: 24px; }
.mb-summary__row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--mb-border); font-size: 14px; }
.mb-summary__row:last-of-type { border-bottom: none; }
.mb-summary__row--total { font-size: 18px; font-weight: 700; color: var(--mb-green); }
.mb-summary__row--total span { font-size: 15px; font-weight: 500; color: var(--mb-dark); }
.mb-summary__note { margin: 16px 0 0; font-size: 12px; color: var(--mb-grey); }

/* Buttons */
.mb-btn { display: inline-block; padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 15px; cursor: pointer; border: none; transition: all .2s; text-decoration: none; }
.mb-btn--next { background: var(--mb-green); color: #fff; }
.mb-btn--next:hover { background: #155f38; }
.mb-btn--back { background: transparent; border: 1.5px solid var(--mb-border); color: var(--mb-grey); }
.mb-btn--back:hover { border-color: var(--mb-green); color: var(--mb-green); }
.mb-btn--pay { background: var(--mb-gold); color: #fff; padding: 14px 36px; font-size: 16px; }
.mb-btn--pay:hover { background: #a87808; }
.mb-btn--cancel { background: transparent; border: 1.5px solid #e53e3e; color: #e53e3e; padding: 8px 20px; font-size: 13px; margin-top: 16px; }
.mb-btn--cancel:hover { background: #e53e3e; color: #fff; }
.mb-actions { display: flex; gap: 12px; margin-top: 8px; }

/* Loader */
.mb-loader { display: flex; align-items: center; gap: 10px; color: var(--mb-grey); font-size: 14px; margin-top: 16px; }
.mb-spinner { width: 20px; height: 20px; border: 3px solid var(--mb-border); border-top-color: var(--mb-green); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Notice */
.mb-notice { padding: 12px 16px; border-radius: 8px; font-size: 14px; font-weight: 500; margin-top: 12px; }
.mb-notice--success { background: var(--mb-green-l); color: var(--mb-green); border: 1px solid #a8dbc0; }
.mb-notice--error { background: #fff0f0; color: #c53030; border: 1px solid #f5c6c6; }

/* Success */
.mb-panel--success { text-align: center; padding: 40px; }
.mb-success-icon { font-size: 60px; margin-bottom: 16px; }

/* Dashboard */
.mb-dashboard { font-family: 'DM Sans', sans-serif; color: var(--mb-dark); max-width: 780px; }
.mb-dash-section { margin-bottom: 40px; }
.mb-dash-section__title { font-family: 'DM Serif Display', serif; font-size: 22px; border-bottom: 2px solid var(--mb-border); padding-bottom: 8px; margin-bottom: 16px; }
.mb-sub-card { border-radius: var(--mb-radius); padding: 24px; position: relative; }
.mb-sub-card--active { background: var(--mb-green-l); border: 2px solid var(--mb-green); }
.mb-sub-card--empty { background: #f7f7f7; border: 2px dashed var(--mb-border); text-align: center; padding: 32px; }
.mb-sub-card__badge { position: absolute; top: 16px; right: 16px; background: var(--mb-green); color: #fff; padding: 3px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.mb-sub-card__plan { font-family: 'DM Serif Display', serif; font-size: 24px; margin-bottom: 4px; }
.mb-sub-card__course { color: var(--mb-grey); font-size: 14px; margin-bottom: 12px; }
.mb-sub-card__meta { display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--mb-grey); margin-bottom: 8px; }
.mb-sub-card__next { font-size: 13px; color: var(--mb-gold); font-weight: 500; }
.mb-sessions-list { display: flex; flex-direction: column; gap: 10px; }
.mb-session-item { display: grid; grid-template-columns: 140px 90px 1fr 100px; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 8px; font-size: 14px; }
.mb-session-item--upcoming { background: var(--mb-green-l); border: 1px solid #a8dbc0; }
.mb-session-item--past { background: #f7f7f7; border: 1px solid var(--mb-border); }
.mb-session-item__date { font-weight: 600; }
.mb-session-item__time { color: var(--mb-green); font-weight: 500; }
.mb-session-item__course { color: var(--mb-grey); }
.mb-session-item__status { text-align: right; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }
.mb-session-item__status--confirmed { background: var(--mb-green); color: #fff; }
.mb-session-item__status--pending   { background: var(--mb-gold-l); color: var(--mb-gold); }
.mb-session-item__status--cancelled { background: #fff0f0; color: #c53030; }
.mb-empty { color: var(--mb-grey); font-style: italic; }
.mb-login-msg { padding: 16px; background: var(--mb-green-l); border-radius: 8px; }
.mb-no-slots { color: var(--mb-grey); font-style: italic; }

/* Responsive */
@media(max-width:600px) {
  .mb-plans { grid-template-columns: 1fr; }
  .mb-steps { flex-wrap: wrap; }
  .mb-step { font-size: 11px; padding: 10px 6px; }
  .mb-session-item { grid-template-columns: 1fr 1fr; }
}