/* =========================================
   Espace Convivial de Waterloo — main.css
   Palette & typo from Figma Make export
   ========================================= */

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Space Grotesk', system-ui, sans-serif; color: #1c3038; background: #faf9f6; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
strong { color: inherit; font-weight: 600; }

/* --- Tokens --- */
:root {
  --mint:   #d6f5e8;
  --pink:   #fce4ec;
  --cream:  #fdf6ec;
  --lime:   #eef5d0;
  --dark:   #1c3038;
  --darker: #131a1f;
  --bg:     #faf9f6;

  --red:    #d96363;
  --blue:   #59a2b4;
  --yellow: #c9c918;

  --max-w: 1400px;
  --pad:   clamp(1.25rem, 5vw, 2.5rem);
  --section-py: clamp(4rem, 8vw, 7rem);
}

/* --- Color helpers --- */
.text-accent-red    { color: var(--red); }
.text-accent-blue   { color: var(--blue); }
.text-accent-yellow { color: var(--yellow); }
.text-white         { color: #fff; }
.bg-dark            { background-color: var(--dark); }
.bg-cream           { background-color: var(--cream); }

/* --- Layout --- */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section { padding-block: var(--section-py); }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}
.section-header .body-text { margin-top: 1rem; margin-inline: auto; }

/* --- Typography --- */
.label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(28, 48, 56, 0.6);
  border: 1px solid rgba(28, 48, 56, 0.2);
  padding: 0.35rem 1rem;
  border-radius: 2px;
  margin-bottom: 1.5rem;
}
.label--light {
  color: rgba(255,255,255,0.7);
  border-color: rgba(255,255,255,0.3);
}

.big-heading {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--dark);
  margin-bottom: 1.75rem;
}
.big-heading--light { color: #fff; }

.body-text {
  font-size: 1rem;
  color: rgba(28, 48, 56, 0.5);
  line-height: 1.7;
  margin-bottom: 1.1rem;
  max-width: 520px;
}
.body-text--muted-light { color: rgba(255,255,255,0.45); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2rem;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 2px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }

.btn--dark { background: var(--dark); color: #fff; }
.btn--dark:hover { background: #2a4250; }

.btn--outline-dark {
  background: transparent;
  color: var(--dark);
  border-color: rgba(28,48,56,0.25);
}
.btn--outline-dark:hover { border-color: var(--dark); }

.btn--yellow { background: var(--yellow); color: var(--dark); border-color: transparent; }
.btn--yellow:hover { background: #d4d426; }

/* --- Nav --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.4s, box-shadow 0.4s;
}
.nav.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.nav__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad);
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
}

.nav__logo-img {
  height: 28px;
  width: auto;
  display: block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__links a {
  padding: 0.5rem 1rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(28,48,56,0.5);
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--dark); }

.nav__cta {
  margin-left: 0.75rem;
  background: var(--dark);
  color: #fff !important;
  border-radius: 2px;
  padding: 0.6rem 1.4rem !important;
}
.nav__cta:hover { background: #2a4250; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* --- Hero --- */
.hero {
  min-height: 100svh;
  background-color: var(--mint);
  display: flex;
  align-items: center;
  padding-top: 80px;
}

.hero__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding: var(--section-py) var(--pad);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
  width: 100%;
}

.hero__title {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 1.0;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--dark);
  margin-bottom: 2rem;
}

.hero__desc {
  font-size: 1.1rem;
  color: rgba(28,48,56,0.5);
  max-width: 440px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}
.hero__desc strong { color: var(--dark); }

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__media { position: relative; }

.hero__img-wrap {
  position: relative;
  border-radius: 2px;
  overflow: visible;
}

.hero__img {
  width: 100%;
  height: clamp(22rem, 45vh, 32rem);
  object-fit: cover;
  border-radius: 2px;
  display: block;
}

.hero__stat {
  position: absolute;
  background: white;
  border-radius: 2px;
  padding: 1rem 1.5rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
.hero__stat--bottom { bottom: -1.5rem; left: -1.5rem; }
.hero__stat--top    { top: -1.25rem; right: -1.25rem; background: var(--dark); }

.stat__val {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.75rem;
  color: var(--dark);
  line-height: 1;
}
.stat__val--accent { color: var(--yellow); }
.stat__lbl {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(28,48,56,0.4);
  margin-top: 0.25rem;
}
.stat__lbl--light { color: rgba(255,255,255,0.4); }

/* --- Marquee --- */
.marquee-bar {
  background: var(--dark);
  padding-block: 1.25rem;
  overflow: hidden;
  white-space: nowrap;
}

.marquee-track {
  display: inline-flex;
  gap: 1.5rem;
  animation: marquee 25s linear infinite;
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.1rem;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
}

.marquee-track .sep { opacity: 0.4; }

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* --- Image block with offset shadow --- */
.img-block { position: relative; z-index: 1; }

.img-block__frame {
  border-radius: 2px;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.img-block__img {
  width: 100%;
  height: clamp(22rem, 40vh, 30rem);
  object-fit: cover;
  display: block;
}

.img-block__shadow {
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: 2px;
  transform: translate(1rem, 1rem);
}

.img-block--right .img-block__shadow { transform: translate(-1rem, -1rem); }

/* --- Mission stats row --- */
.stats-row {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(28,48,56,0.1);
}

.stat-item__val {
  font-family: 'Archivo Black', sans-serif;
  font-size: 2rem;
  color: var(--dark);
  line-height: 1;
}

.stat-item__lbl {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(28,48,56,0.3);
  margin-top: 0.35rem;
}

/* --- Services --- */
.services__header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-bottom: clamp(2.5rem, 5vw, 5rem);
  align-items: end;
}

.services__header .body-text { max-width: 100%; }

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.service-card {
  border-radius: 2px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s;
  cursor: default;
}
.service-card:hover { transform: translateY(-4px); }

.service-card__icon {
  width: 32px;
  height: 32px;
  stroke: var(--dark);
  margin-bottom: 1.5rem;
  flex-shrink: 0;
}

.service-card__title {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.05rem;
  text-transform: uppercase;
  color: var(--dark);
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

.service-card__desc {
  font-size: 0.875rem;
  color: rgba(28,48,56,0.5);
  line-height: 1.65;
  margin-top: auto;
}

/* --- Workflow --- */
.workflow-step { padding-block: clamp(4rem, 7vw, 6rem); }

.workflow-step__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.workflow-step__inner--reverse .workflow-step__icon { order: -1; }

.workflow-step__icon { display: flex; justify-content: center; }

.workflow-icon-circle {
  width: clamp(8rem, 15vw, 10rem);
  height: clamp(8rem, 15vw, 10rem);
  border-radius: 50%;
  background: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(28,48,56,0.25);
  transition: transform 0.3s;
}
.workflow-icon-circle:hover { transform: scale(1.05) rotate(5deg); }

/* --- Students --- */
.student-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.student-stat-card {
  border-radius: 2px;
  padding: 2rem;
  text-align: center;
  transition: transform 0.25s;
}
.student-stat-card:hover { transform: translateY(-4px); }

.student-stat-val {
  font-family: 'Archivo Black', sans-serif;
  font-size: 2.5rem;
  color: var(--dark);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.student-stat-lbl {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(28,48,56,0.4);
}

/* --- Cal placeholder --- */
.cal-wrapper {
  background: #fff;
  border-radius: 2px;
  border: 1px solid rgba(28,48,56,0.06);
  box-shadow: 0 4px 24px rgba(28,48,56,0.08);
  overflow: hidden;
  max-width: 900px;
  margin-inline: auto;
}

.cal-frame {
  width: 100%;
  height: 700px;
  border: none;
  display: block;
}

/* --- Bénévoles join steps --- */
.join-steps {
  background: #fff;
  border-radius: 2px;
  padding: 2rem;
  border: 1px solid rgba(28,48,56,0.06);
  margin-top: 2rem;
}

.join-steps__title {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(28,48,56,0.3);
  margin-bottom: 1.5rem;
}

.join-step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}
.join-step:last-child { margin-bottom: 0; }

.join-step__num {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.5rem;
  color: rgba(28,48,56,0.1);
  line-height: 1;
  flex-shrink: 0;
}

.join-step p {
  font-size: 0.875rem;
  color: rgba(28,48,56,0.6);
  padding-top: 0.2rem;
}

/* --- Donations --- */
.donation-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.donation-list-title {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(28,48,56,0.3);
  margin-bottom: 1.25rem;
}

.donation-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.donation-item {
  background: #fff;
  border-radius: 2px;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  border: 1px solid rgba(28,48,56,0.06);
  transition: transform 0.2s;
}
.donation-item:hover { transform: translateX(4px); }

.donation-item__icon {
  width: 3rem;
  height: 3rem;
  border-radius: 2px;
  background: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.donation-item p {
  font-size: 0.875rem;
  color: rgba(28,48,56,0.6);
  line-height: 1.6;
  padding-top: 0.25rem;
  flex: 1;
}

.donation-item--link {
  text-decoration: none;
  cursor: pointer;
}
.donation-item--link:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(28,48,56,0.08);
}

.donation-item__arrow {
  flex-shrink: 0;
  color: rgba(28,48,56,0.3);
  transition: transform 0.2s, color 0.2s;
}
.donation-item--link:hover .donation-item__arrow {
  transform: translateX(3px);
  color: var(--dark);
}

.iban-block {
  background: var(--dark);
  border-radius: 2px;
  padding: 1.5rem 2rem;
  text-align: center;
}

.iban-block__label {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 0.5rem;
}

.iban-block__val {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.15rem;
  color: #fff;
  letter-spacing: 0.05em;
}

.iban-block__comm {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
  margin-top: 0.4rem;
}

/* --- Contact --- */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 800px;
  margin-inline: auto;
}

.contact-card {
  border-radius: 2px;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  transition: transform 0.25s;
}
.contact-card:hover { transform: translateY(-4px); }
.contact-card p { font-size: 0.9rem; color: rgba(28,48,56,0.7); }

/* --- Footer --- */
.footer {
  background: var(--darker);
  padding-block: 2.5rem;
}

.footer__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer__logo-img {
  height: 26px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
}

.footer__copy {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.2);
}

/* --- Reveal animation --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* Nav */
  .nav__links {
    display: none;
    position: fixed;
    top: 80px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.5rem 1.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    gap: 0;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a {
    padding: 0.85rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    font-size: 0.85rem;
  }
  .nav__links li:last-child a { border-bottom: none; }
  .nav__cta { margin-left: 0; text-align: center; }
  .nav__toggle { display: flex; }

  /* Grids */
  .hero__inner,
  .grid-2,
  .workflow-step__inner,
  .services__header { grid-template-columns: 1fr; }

  .workflow-step__inner--reverse .workflow-step__icon { order: 0; }
  .img-block--right .img-block__shadow { transform: translate(1rem, 1rem); }

  .services__grid { grid-template-columns: 1fr; }
  .contact-cards  { grid-template-columns: 1fr; }

  .hero__stat--bottom { bottom: -1rem; left: -0.75rem; }
  .hero__stat--top    { top: -0.75rem; right: -0.75rem; }

  .hero__media { margin-top: 1rem; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .donation-actions { flex-direction: column; }
  .donation-actions .btn { width: 100%; justify-content: center; }
  .student-stats { grid-template-columns: 1fr 1fr; }
}

/* ═══════════════════════════════════════════
   Modal inscription étudiants
   ═══════════════════════════════════════════ */

.student-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(19, 26, 31, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}
.student-modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.student-modal {
  background: #fff;
  border-radius: 4px;
  width: 100%;
  max-width: 500px;
  max-height: 92svh;
  overflow-y: auto;
  position: relative;
  padding: 2.5rem;
  transform: translateY(20px);
  transition: transform 0.3s ease;
  scrollbar-width: none;
}
.student-modal::-webkit-scrollbar { display: none; }
.student-modal-overlay.is-open .student-modal { transform: translateY(0); }

.student-modal__close {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  background: none;
  border: none;
  cursor: pointer;
  color: rgba(28, 48, 56, 0.35);
  padding: 6px;
  border-radius: 2px;
  transition: color 0.2s;
  line-height: 0;
}
.student-modal__close:hover { color: var(--dark); }

/* Progress bar */
.sform-progress {
  height: 3px;
  background: rgba(28, 48, 56, 0.08);
  border-radius: 2px;
  margin-bottom: 2rem;
  overflow: hidden;
}
.sform-progress__bar {
  height: 100%;
  background: var(--yellow);
  border-radius: 2px;
  width: 0%;
  transition: width 0.4s ease;
}

/* Steps */
.sform-step { display: none; }
.sform-step.active { display: block; }

/* Typography */
.sform-kicker {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(28, 48, 56, 0.4);
  margin-bottom: 0.4rem;
}
.sform-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(1.6rem, 5vw, 2rem);
  color: var(--dark);
  text-transform: uppercase;
  line-height: 1.05;
  margin-bottom: 1.5rem;
}

/* Step 1 — date badge */
.sform-date-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--lime);
  border-radius: 2px;
  padding: 0.9rem 1.1rem;
  margin-bottom: 1.5rem;
  font-family: 'Archivo Black', sans-serif;
  font-size: 0.9rem;
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Rules list */
.sform-rules {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.75rem;
}
.sform-rules li {
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
  font-size: 0.9rem;
  color: rgba(28, 48, 56, 0.55);
  line-height: 1.55;
}
.sform-rules li strong { color: var(--dark); }

.sform-rule-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(28, 48, 56, 0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--dark);
}
.sform-rule-icon--yellow { background: var(--yellow); }

/* Step 1 CTA full-width */
.sform-step[data-step="1"] .btn {
  width: 100%;
  justify-content: center;
}

/* Form groups */
.sform-group { margin-bottom: 1.1rem; }

.sform-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.875rem;
}

.sform-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(28, 48, 56, 0.45);
  margin-bottom: 0.45rem;
}

.sform-input {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1.5px solid rgba(28, 48, 56, 0.14);
  border-radius: 2px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--dark);
  background: #fff;
  outline: none;
  transition: border-color 0.2s;
}
.sform-input:focus { border-color: var(--dark); }
.sform-input--error { border-color: var(--red) !important; }
.sform-input::placeholder { color: rgba(28, 48, 56, 0.25); }

/* Radio chips — Homme / Femme */
.sform-radio-group {
  display: flex;
  gap: 0.75rem;
}
.sform-radio-group--error { outline: 2px solid var(--red); outline-offset: 4px; border-radius: 2px; }

.sform-radio { flex: 1; cursor: pointer; }
.sform-radio input { position: absolute; opacity: 0; pointer-events: none; }
.sform-radio span {
  display: block;
  text-align: center;
  padding: 0.7rem;
  border: 1.5px solid rgba(28, 48, 56, 0.14);
  border-radius: 2px;
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(28, 48, 56, 0.45);
  transition: all 0.18s;
}
.sform-radio input:checked + span {
  border-color: var(--dark);
  color: var(--dark);
  background: rgba(28, 48, 56, 0.04);
}

/* Stepper +/- */
.sform-stepper {
  display: inline-flex;
  align-items: stretch;
  border: 1.5px solid rgba(28, 48, 56, 0.14);
  border-radius: 2px;
  overflow: hidden;
}
.sform-stepper__btn {
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  font-size: 1.25rem;
  color: var(--dark);
  transition: background 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sform-stepper__btn:hover { background: rgba(28, 48, 56, 0.05); }
.sform-stepper__btn:disabled { opacity: 0.3; cursor: default; }
.sform-stepper__val {
  min-width: 54px;
  text-align: center;
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.05rem;
  color: var(--dark);
  border-inline: 1.5px solid rgba(28, 48, 56, 0.12);
  padding: 0.55rem 0;
}

/* Checkbox engagement */
.sform-checkbox {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  cursor: pointer;
  font-size: 0.88rem;
  color: rgba(28, 48, 56, 0.55);
  line-height: 1.5;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}
.sform-checkbox input {
  margin-top: 2px;
  flex-shrink: 0;
  width: 17px;
  height: 17px;
  cursor: pointer;
  accent-color: var(--dark);
}
.sform-checkbox strong { color: var(--dark); }
.sform-checkbox--error { color: var(--red); }

/* Nav buttons */
.sform-nav {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.sform-nav .btn:last-child { flex: 1; justify-content: center; }

/* Success */
.sform-success { text-align: center; padding: 0.5rem 0; }

.sform-success__icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--mint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  color: var(--dark);
}
.sform-success__date {
  font-family: 'Archivo Black', sans-serif;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--dark);
  background: var(--lime);
  display: inline-block;
  padding: 0.55rem 1.25rem;
  border-radius: 2px;
  margin-bottom: 1rem;
}
.sform-success__note {
  font-size: 0.9rem;
  color: rgba(28, 48, 56, 0.5);
  margin-bottom: 2rem;
  line-height: 1.6;
  max-width: 320px;
  margin-inline: auto;
}

/* Mobile */
@media (max-width: 560px) {
  .student-modal-overlay { padding: 0; align-items: flex-end; }
  .student-modal { max-width: 100%; max-height: 96svh; border-radius: 4px 4px 0 0; padding: 1.75rem 1.25rem; }
  .sform-row { grid-template-columns: 1fr; gap: 0; }
}