:root {
  --card-radius: 15px;
}
* { box-sizing: border-box; }
body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #6a11cb 0%, #2575fc 55%, #00b4d8 100%);
  color: #333;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

.container {
  max-width: 540px;
  margin: 50px auto;
  background: rgba(255,255,255,0.97);
  padding: 30px 20px;
  border-radius: var(--card-radius);
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  position: relative;
  z-index: 2;
}

h1 {
  text-align: center;
  color: #3b2d7a;
  font-size: 24px;
  margin: 0 0 22px;
  font-weight: 800;
}

button, select {
  font-family: inherit;
  outline: none;
}

#calculateBtn {
  width: 100%;
  padding: 12px;
  margin: 10px 0 8px;
  border-radius: 8px;
  font-size: 16px;
  background: linear-gradient(135deg, #2575fc, #6a11cb);
  color: white;
  border: none;
  cursor: pointer;
  font-weight: 800;
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
}
#calculateBtn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 20px rgba(74,45,180,.25);
  filter: brightness(1.08);
}

/* ---------- Semester custom dropdown ---------- */
.semester-wrap { position: relative; margin-bottom: 12px; }
.section-label {
  font-size: 13px;
  font-weight: 800;
  margin: 0 0 6px 2px;
}
.semester-label { color: #b45309; }
.native-semester {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.semester-picker { position: relative; }
.semester-trigger {
  width: 100%;
  min-height: 48px;
  padding: 11px 14px;
  border-radius: 10px;
  border: 2px solid #f2c14e;
  background: linear-gradient(135deg, #fff8db, #ffefb0);
  color: #8a5600;
  font-size: 16px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(242,193,78,0.18);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease, color .22s ease;
}
.semester-trigger:hover,
.semester-picker.open .semester-trigger {
  transform: scale(1.018);
  box-shadow: 0 7px 18px rgba(224,168,0,.18), 0 0 0 3px rgba(242,193,78,.14);
}
.semester-arrow { font-size: 20px; transition: transform .22s ease; }
.semester-picker.open .semester-arrow { transform: rotate(180deg); }
.semester-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  padding: 8px;
  border-radius: 12px;
  background: rgba(255,255,255,.99);
  box-shadow: 0 14px 28px rgba(30,30,70,.22);
  border: 1px solid rgba(90,80,150,.12);
  z-index: 20;
  display: grid;
  gap: 5px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px) scale(.98);
  transform-origin: top center;
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.semester-picker.open .semester-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.semester-option {
  width: 100%;
  border: 0;
  border-radius: 9px;
  padding: 10px 12px;
  text-align: left;
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease, filter .16s ease;
}
.semester-option:hover,
.semester-option:focus {
  transform: scale(1.055);
  box-shadow: 0 6px 14px rgba(0,0,0,.13);
  filter: brightness(1.03);
  z-index: 2;
}
.semester-option.active { outline: 2px solid rgba(37,117,252,.28); }
.sem-1 { background:#e8f5e9; color:#1b7f3a; }
.sem-2 { background:#e3f2fd; color:#0b66c3; }
.sem-3 { background:#f3e8ff; color:#7b2cbf; }
.sem-4 { background:#fff3cd; color:#9c6500; }
.sem-5 { background:#ffe8d6; color:#c75b12; }
.sem-6 { background:#e6fffb; color:#087f8c; }
.sem-7 { background:#ffe5ec; color:#b5174f; }
.sem-8 { background:#ecebff; color:#5145cd; }

/* ---------- Header ---------- */
.subject-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 105px 82px;
  gap: 8px;
  padding: 10px 12px;
  margin-top: 10px;
  border-radius: 9px;
  background: #f7f8ff;
  font-size: 13px;
  font-weight: 800;
  box-shadow: inset 0 0 0 1px rgba(83,70,180,.08);
}
.subject-header span:nth-child(1) { color: #7b2cbf; }
.subject-header span:nth-child(2) { color: #0b72e7; text-align: center; }
.subject-header span:nth-child(3) { color: #e85d04; text-align: center; }

/* ---------- Subject rows ---------- */
.subject {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 105px 82px;
  gap: 8px;
  align-items: center;
  margin: 12px 0;
  padding: 8px 12px;
  background: linear-gradient(135deg, #fbfbff, #f4f7ff);
  border-radius: 9px;
  border: 1px solid #e7e9f7;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.subject:hover {
  transform: translateY(-1px);
  box-shadow: 0 7px 16px rgba(44,40,110,.08);
  border-color: rgba(91,70,190,.18);
}
.subject-name {
  min-width: 0;
  font-weight: 800;
  color: var(--subject-color, #6f2dbd);
  transform-origin: left center;
  transition: transform .18s ease, filter .18s ease, text-shadow .18s ease;
}
.subject-name:hover {
  transform: scale(1.06);
  filter: brightness(.92) saturate(1.2);
  text-shadow: 0 4px 10px rgba(30,30,60,.12);
}

.subject select.grade {
  width: 100%;
  min-height: 42px;
  margin: 0;
  padding: 8px 6px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 800;
  border: 2px solid #b9cef7;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.subject select.grade:hover,
.subject select.grade:focus {
  transform: scale(1.045);
  box-shadow: 0 0 0 3px rgba(37,117,252,.10), 0 5px 12px rgba(20,60,120,.10);
}

.marks {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 5px;
  border: 2px solid #ffbf69;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.marks:hover {
  transform: scale(1.06);
  box-shadow: 0 5px 14px rgba(30,50,90,.15);
}

#result {
  text-align: center;
  margin-top: 18px;
  font-size: 22px;
  font-weight: 800;
  color: #6a11cb;
}

/* ---------- Developer watermark ---------- */
.watermark {
  position: fixed;
  top: 50%;
  width: 310px;
  text-align: center;
  transform: translateY(-50%);
  z-index: 1;
  user-select: none;
  white-space: nowrap;
  cursor: default;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  animation-duration: 5.2s;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}
.developed-label {
  display: block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255,255,255,.82);
  text-shadow: 0 2px 10px rgba(20,20,90,.24);
  transition: transform .25s ease, color .25s ease, letter-spacing .25s ease;
}
.developer-name {
  display: block;
  font-size: 27px;
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: .4px;
  background: linear-gradient(90deg, #fff176, #ffffff, #7cf5ff, #fff176);
  background-size: 220% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 8px rgba(255,255,255,.40));
  animation: nameShine 3.2s linear infinite;
  transition: transform .25s ease, filter .25s ease, letter-spacing .25s ease;
}
.watermark-left { left: 10px; animation-name: moveLeft; }
.watermark-right { right: 10px; animation-name: moveRight; }
@keyframes moveLeft {
  from { transform: translate(42px, -50%); }
  to   { transform: translate(-42px, -50%); }
}
@keyframes moveRight {
  from { transform: translate(-42px, -50%); }
  to   { transform: translate(42px, -50%); }
}
@keyframes nameShine {
  from { background-position: 0% center; }
  to { background-position: 220% center; }
}
.watermark:hover .developed-label {
  transform: translateY(-2px) scale(1.06);
  color: #ffffff;
  letter-spacing: 3.8px;
}
.watermark:hover .developer-name {
  transform: scale(1.10);
  letter-spacing: 1px;
  filter: drop-shadow(0 0 8px rgba(255,255,255,.8)) drop-shadow(0 0 16px rgba(0,229,255,.55));
}

@media (max-width: 1180px) {
  .watermark { width: 245px; }
  .developer-name { font-size: 21px; }
  .developed-label { font-size: 12px; letter-spacing: 2px; }
  .watermark-left { left: -55px; }
  .watermark-right { right: -55px; }
}

@media (max-width: 700px) {
  .container {
    margin: 20px 10px 68px;
    padding: 20px 14px;
  }
  h1 { font-size: 22px; }
  .subject-header {
    grid-template-columns: minmax(0, 1fr) 82px 70px;
    gap: 5px;
    padding-left: 8px;
    padding-right: 8px;
    font-size: 12px;
  }
  .subject {
    grid-template-columns: minmax(0, 1fr) 82px 70px;
    gap: 5px;
    padding: 8px;
  }
  .subject-name { font-size: 13px; }
  .subject-name:hover { transform: scale(1.035); }
  .subject select.grade { padding: 8px 4px; font-size: 13px; }
  .marks { min-height: 38px; font-size: 10.5px; }

  /* Keep credits visible without covering calculator on phones */
  .watermark {
    top: auto;
    bottom: 8px;
    width: 49%;
    opacity: .68;
  }
  .watermark-left { left: 0; }
  .watermark-right { right: 0; }
  .developed-label { font-size: 8px; letter-spacing: 1px; }
  .developer-name { font-size: 12px; }
  @keyframes moveLeft {
    from { transform: translate(10px, 0); }
    to   { transform: translate(-6px, 0); }
  }
  @keyframes moveRight {
    from { transform: translate(-10px, 0); }
    to   { transform: translate(6px, 0); }
  }
}


/* ===== V5 enhancements ===== */

/* Stronger zoom effects */
.semester-trigger:hover,
.semester-picker.open .semester-trigger {
  transform: scale(1.045);
}

.semester-option:hover,
.semester-option:focus {
  transform: scale(1.095);
}

.subject:hover {
  transform: translateY(-2px) scale(1.018);
  box-shadow: 0 10px 22px rgba(44,40,110,.13);
}

.subject-name:hover {
  transform: scale(1.095);
  filter: brightness(.90) saturate(1.35);
  text-shadow: 0 5px 13px rgba(30,30,60,.18);
}

.marks:hover {
  transform: scale(1.09);
  box-shadow: 0 7px 16px rgba(30,50,90,.19);
}

/* Custom Grade picker so grade options can zoom/color nicely */
.grade-native {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.grade-picker {
  position: relative;
  width: 100%;
}

.grade-trigger {
  width: 100%;
  min-height: 42px;
  padding: 7px 7px;
  border-radius: 8px;
  border: 2px solid #52b788;
  background: #d8f3dc;
  color: #137333;
  font-size: 14px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}

.grade-trigger:hover,
.grade-picker.open .grade-trigger {
  transform: scale(1.075);
  box-shadow: 0 0 0 3px rgba(37,117,252,.12), 0 8px 16px rgba(20,60,120,.14);
  z-index: 25;
}

.grade-arrow {
  font-size: 15px;
  line-height: 1;
  transition: transform .18s ease;
}

.grade-picker.open .grade-arrow {
  transform: rotate(180deg);
}

.grade-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  width: 118px;
  transform: translate(-50%, -5px) scale(.96);
  transform-origin: top center;
  padding: 6px;
  border-radius: 11px;
  background: rgba(255,255,255,.995);
  border: 1px solid rgba(55,70,130,.13);
  box-shadow: 0 14px 28px rgba(30,30,70,.24);
  z-index: 60;
  display: grid;
  gap: 4px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .16s ease, transform .16s ease, visibility .16s ease;
}

.grade-picker.open .grade-menu {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0) scale(1);
}

.grade-option {
  width: 100%;
  border: 2px solid transparent;
  border-radius: 8px;
  padding: 7px 6px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  transition: transform .14s ease, box-shadow .14s ease, filter .14s ease;
}

.grade-option:hover,
.grade-option:focus {
  transform: scale(1.12);
  box-shadow: 0 6px 14px rgba(20,30,70,.18);
  filter: saturate(1.18) brightness(1.02);
  z-index: 2;
}

.grade-option[data-grade="A+"] { background:#d8f3dc; color:#137333; border-color:#52b788; }
.grade-option[data-grade="A"]  { background:#e8f5e9; color:#1b7f3a; border-color:#74c69d; }
.grade-option[data-grade="A-"] { background:#e7f7ef; color:#27864b; border-color:#95d5b2; }
.grade-option[data-grade="B+"] { background:#e3f2fd; color:#0b66c3; border-color:#64b5f6; }
.grade-option[data-grade="B"]  { background:#eef4ff; color:#3156a3; border-color:#8ab4f8; }
.grade-option[data-grade="B-"] { background:#f1f0ff; color:#5b50a6; border-color:#aaa2e8; }
.grade-option[data-grade="C+"] { background:#fff8db; color:#9a6a00; border-color:#f4d35e; }
.grade-option[data-grade="C"]  { background:#fff3cd; color:#9c6500; border-color:#ffc857; }
.grade-option[data-grade="D"]  { background:#ffe0e0; color:#c1121f; border-color:#ef476f; }
.grade-option[data-grade="F"]  { background:#ffd6d6; color:#9b111e; border-color:#d90429; }

/* Bigger and more elegant developer credit */
.watermark {
  width: 360px;
  gap: 3px;
}

.developed-label {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 4px;
}

.developer-name {
  font-family: 'Playfair Display', serif;
  font-size: 36px;
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: .7px;
  background: linear-gradient(90deg, #fff176, #ffffff, #7cf5ff, #f7b2ff, #fff176);
  background-size: 260% auto;
  filter: drop-shadow(0 0 10px rgba(255,255,255,.48));
}

.watermark:hover .developed-label {
  transform: translateY(-3px) scale(1.10);
  letter-spacing: 4.8px;
}

.watermark:hover .developer-name {
  transform: scale(1.15);
  letter-spacing: 1.2px;
  filter: drop-shadow(0 0 10px rgba(255,255,255,.95))
          drop-shadow(0 0 22px rgba(0,229,255,.62));
}

/* Contact with Developer */
.developer-contact {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(95,80,170,.12);
  text-align: center;
}

.contact-title {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .5px;
  color: #5c4bb7;
  margin-bottom: 10px;
  transition: transform .2s ease, color .2s ease, text-shadow .2s ease;
}

.developer-contact:hover .contact-title {
  transform: scale(1.055);
  color: #4432a8;
  text-shadow: 0 4px 12px rgba(80,55,170,.18);
}

.whatsapp-link {
  width: min(100%, 250px);
  margin: 0 auto;
  min-height: 52px;
  padding: 8px 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  border-radius: 14px;
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  color: #087a39;
  border: 2px solid #25D366;
  box-shadow: 0 7px 18px rgba(37,211,102,.16);
  transition: transform .22s ease, box-shadow .22s ease, filter .22s ease;
}

.whatsapp-link:hover,
.whatsapp-link:focus {
  transform: translateY(-3px) scale(1.075);
  box-shadow: 0 12px 26px rgba(37,211,102,.28), 0 0 0 4px rgba(37,211,102,.12);
  filter: saturate(1.15);
}

.whatsapp-icon {
  width: 31px;
  height: 31px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform .26s ease, filter .26s ease;
}

.whatsapp-icon svg {
  width: 100%;
  height: 100%;
  fill: #25D366;
}

.whatsapp-link:hover .whatsapp-icon {
  transform: rotate(-10deg) scale(1.18);
  filter: drop-shadow(0 0 8px rgba(37,211,102,.45));
}

.whatsapp-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.15;
}

.whatsapp-text strong {
  font-size: 14px;
}

.whatsapp-text small {
  margin-top: 3px;
  font-size: 11px;
  font-weight: 700;
  opacity: .82;
}

@media (max-width: 1180px) {
  .watermark { width: 285px; }
  .developer-name { font-size: 27px; }
  .developed-label { font-size: 13px; letter-spacing: 2.5px; }
}

@media (max-width: 700px) {
  .semester-option:hover,
  .semester-option:focus { transform: scale(1.07); }

  .subject-name:hover { transform: scale(1.055); }

  .grade-trigger:hover,
  .grade-picker.open .grade-trigger { transform: scale(1.045); }

  .grade-option:hover,
  .grade-option:focus { transform: scale(1.075); }

  .marks:hover { transform: scale(1.055); }

  .watermark { width: 49%; }
  .developed-label { font-size: 8px; letter-spacing: 1px; }
  .developer-name { font-size: 14px; }

  .whatsapp-link:hover,
  .whatsapp-link:focus { transform: translateY(-2px) scale(1.035); }
}


/* ===== V6 FIX: Developer name always visible ===== */
.developer-name {
  font-family: 'Playfair Display', Georgia, 'Times New Roman', serif !important;
  font-size: 38px !important;
  line-height: 1.08 !important;
  font-weight: 800 !important;
  letter-spacing: .8px !important;

  /* Solid fallback so text never disappears */
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;

  /* Remove incompatible clipping that caused the blank gradient bar */
  background: none !important;
  -webkit-background-clip: initial !important;
  background-clip: initial !important;

  text-shadow:
    0 2px 0 rgba(255,255,255,.18),
    0 0 8px rgba(255,255,255,.95),
    0 0 18px rgba(0,229,255,.65),
    0 0 30px rgba(255,105,180,.35) !important;

  filter: none !important;
  position: relative;
  display: inline-block;
}

/* Subtle animated shine overlay without hiding the real text */
.developer-name::after {
  content: "";
  position: absolute;
  inset: -2px -8px;
  border-radius: 10px;
  background: linear-gradient(
    110deg,
    transparent 20%,
    rgba(255,255,255,.0) 35%,
    rgba(255,255,255,.28) 50%,
    rgba(255,255,255,.0) 65%,
    transparent 80%
  );
  transform: translateX(-120%);
  animation: developerShine 3.2s linear infinite;
  pointer-events: none;
  mix-blend-mode: screen;
}

@keyframes developerShine {
  0%   { transform: translateX(-120%); }
  100% { transform: translateX(120%); }
}

.watermark:hover .developer-name {
  transform: scale(1.16) !important;
  letter-spacing: 1.4px !important;
  text-shadow:
    0 0 10px rgba(255,255,255,1),
    0 0 24px rgba(0,229,255,.9),
    0 0 40px rgba(255,105,180,.55) !important;
}

@media (max-width: 1180px) {
  .developer-name { font-size: 29px !important; }
}

@media (max-width: 700px) {
  .developer-name { font-size: 15px !important; }
}


/* ===== Student Portal V1 ===== */
.portal-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 38px auto 24px;
  position: relative;
  z-index: 5;
}

.hero-card {
  text-align: center;
  padding: 34px 24px 28px;
  border-radius: 24px;
  background:
    radial-gradient(circle at top left, rgba(255,255,255,.35), transparent 34%),
    linear-gradient(135deg, rgba(84,77,205,.96), rgba(79,162,246,.92));
  color: white;
  box-shadow: 0 18px 45px rgba(38,46,120,.20);
  overflow: hidden;
  position: relative;
}

.hero-card::after {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  right: -80px;
  bottom: -130px;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
}

.hero-badge {
  display: inline-flex;
  padding: 7px 13px;
  border-radius: 999px;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.28);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .7px;
  margin-bottom: 12px;
}

.hero-card h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.05;
  letter-spacing: -.8px;
}

.hero-card p {
  max-width: 690px;
  margin: 13px auto 0;
  font-size: 15px;
  opacity: .94;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.portal-card {
  border: 0;
  min-height: 175px;
  padding: 22px 18px;
  border-radius: 20px;
  text-align: left;
  cursor: pointer;
  color: #17203f;
  box-shadow: 0 12px 28px rgba(30,38,90,.12);
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
  position: relative;
  overflow: hidden;
}

.portal-card::after {
  content: "";
  position: absolute;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  right: -35px;
  bottom: -45px;
  background: rgba(255,255,255,.35);
}

.portal-card:hover,
.portal-card:focus {
  transform: translateY(-7px) scale(1.045);
  box-shadow: 0 20px 38px rgba(30,38,90,.20);
  filter: saturate(1.08);
}

.card-cgpa { background: linear-gradient(135deg, #dff7e8, #b8efd0); }
.card-notes { background: linear-gradient(135deg, #e5e7ff, #cfd4ff); }
.card-handnotes { background: linear-gradient(135deg, #fff0d6, #ffdca4); }
.card-tutorial { background: linear-gradient(135deg, #ffe3ee, #ffc8dc); }

.portal-icon {
  display: inline-flex;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.6);
  font-size: 25px;
  margin-bottom: 14px;
  transition: transform .2s ease;
}

.portal-card:hover .portal-icon {
  transform: rotate(-5deg) scale(1.16);
}

.portal-title {
  display: block;
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 6px;
}

.portal-desc {
  display: block;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.45;
  opacity: .72;
}

/* Modal */
.resource-modal {
  position: fixed;
  inset: 0;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}

.resource-modal.open {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15,20,45,.56);
  backdrop-filter: blur(6px);
}

.modal-card {
  position: relative;
  width: min(760px, calc(100% - 28px));
  max-height: calc(100vh - 44px);
  overflow: auto;
  margin: 22px auto;
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 30px 80px rgba(15,20,45,.30);
  transform: translateY(14px) scale(.97);
  transition: transform .22s ease;
}

.resource-modal.open .modal-card {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 0;
  cursor: pointer;
  font-size: 24px;
  color: #47506f;
  background: #f0f2f8;
  z-index: 3;
  transition: transform .18s ease, background .18s ease;
}

.modal-close:hover {
  transform: rotate(90deg) scale(1.1);
  background: #e6e9f4;
}

.modal-head {
  padding: 28px 28px 18px;
  text-align: center;
  border-bottom: 1px solid #edf0f6;
}

.modal-kicker {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #6957d6;
  margin-bottom: 7px;
}

.modal-head h2 {
  margin: 0;
  font-size: 27px;
  color: #1d2544;
}

.modal-head p {
  margin: 7px 0 0;
  font-size: 13px;
  color: #69718d;
}

.modal-body {
  padding: 22px;
}

.step-panel { display: none; }
.step-panel.active { display: block; }

.semester-popup-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.sem-popup-btn,
.subject-popup-btn {
  border: 0;
  border-radius: 16px;
  padding: 18px 12px;
  font-family: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: transform .17s ease, box-shadow .17s ease, filter .17s ease;
}

.sem-popup-btn:hover,
.subject-popup-btn:hover {
  transform: scale(1.085);
  box-shadow: 0 10px 22px rgba(20,30,80,.18);
  filter: saturate(1.08);
}

.sem-popup-btn.sem-1 { background:#e8f7ff; color:#12618d; }
.sem-popup-btn.sem-2 { background:#e9f9ec; color:#28733a; }
.sem-popup-btn.sem-3 { background:#fff5d9; color:#8a6412; }
.sem-popup-btn.sem-4 { background:#ffe8ec; color:#a13e57; }
.sem-popup-btn.sem-5 { background:#eee9ff; color:#6047a6; }
.sem-popup-btn.sem-6 { background:#e6f3ff; color:#275a97; }
.sem-popup-btn.sem-7 { background:#fff0dc; color:#a05a17; }
.sem-popup-btn.sem-8 { background:#e6fbf5; color:#16765e; }

.subject-popup-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.subject-popup-btn {
  text-align: left;
  min-height: 64px;
}

.subject-popup-btn:nth-child(6n+1) { background:#e9f2ff; color:#315d9d; }
.subject-popup-btn:nth-child(6n+2) { background:#e9fbef; color:#2c7b45; }
.subject-popup-btn:nth-child(6n+3) { background:#fff4dc; color:#9d6e16; }
.subject-popup-btn:nth-child(6n+4) { background:#ffe9f0; color:#a24764; }
.subject-popup-btn:nth-child(6n+5) { background:#f0eaff; color:#694aa9; }
.subject-popup-btn:nth-child(6n+6) { background:#e9fbfb; color:#237b7b; }

.modal-back {
  border: 0;
  background: #f1f3f8;
  color: #4a5578;
  font-weight: 800;
  border-radius: 10px;
  padding: 9px 12px;
  margin-bottom: 15px;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease;
}

.modal-back:hover {
  transform: translateX(-4px) scale(1.03);
  background: #e9ecf5;
}

.resource-coming-card {
  text-align: center;
  padding: 34px 20px;
  border-radius: 20px;
  background: linear-gradient(135deg, #f7f8ff, #f0f4ff);
  border: 1px solid #e6eaf5;
}

.coming-icon {
  font-size: 48px;
  margin-bottom: 10px;
}

.resource-coming-card h3 {
  margin: 0;
  font-size: 23px;
  color: #273252;
}

.resource-coming-card p {
  margin: 8px 0 15px;
  color: #6f7894;
}

.coming-badge {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: #e7ebff;
  color: #5648bd;
  font-size: 12px;
  font-weight: 800;
}

body.modal-open {
  overflow: hidden;
}

@media (max-width: 900px) {
  .portal-grid { grid-template-columns: repeat(2, 1fr); }
  .semester-popup-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .portal-shell { width: min(100% - 20px, 1120px); margin-top: 20px; }
  .hero-card { padding: 26px 16px 22px; border-radius: 18px; }
  .portal-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .portal-card { min-height: 150px; padding: 16px 13px; border-radius: 16px; }
  .portal-title { font-size: 16px; }
  .portal-desc { font-size: 10px; }
  .modal-card { width: calc(100% - 16px); margin: 8px auto; max-height: calc(100vh - 16px); }
  .modal-head { padding: 24px 18px 16px; }
  .modal-body { padding: 16px; }
  .subject-popup-grid { grid-template-columns: 1fr; }
}


/* ===== V2 FIX: Grade dropdown stacking ===== */
.subject {
  position: relative;
  z-index: 1;
}

.subject.grade-open {
  z-index: 500 !important;
}

.subject.grade-open:hover {
  z-index: 500 !important;
}

.grade-picker {
  position: relative;
  z-index: 2;
}

.grade-picker.open {
  z-index: 600 !important;
}

.grade-picker.open .grade-menu {
  z-index: 700 !important;
}

.grade-menu {
  isolation: isolate;
}

/* Keep rows below the active dropdown */
.subject:not(.grade-open):hover {
  z-index: 2;
}


/* ===== Student Portal V3: clean homepage + calculator modal ===== */
.home-extras {
  display: grid;
  grid-template-columns: 1.35fr .85fr;
  gap: 16px;
  margin-top: 18px;
}

.quick-panel,
.latest-panel {
  border-radius: 22px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 14px 34px rgba(29,38,95,.14);
  padding: 20px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
  margin-bottom: 15px;
}

.section-heading h2 {
  margin: 3px 0 0;
  color: #232c4f;
  font-size: 20px;
}

.section-kicker {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #7658d6;
}

.section-note {
  font-size: 10px;
  color: #7a829d;
  font-weight: 700;
}

.home-semester-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 9px;
}

.home-sem-btn {
  border: 0;
  min-height: 64px;
  border-radius: 14px;
  cursor: pointer;
  font-family: inherit;
  font-weight: 800;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.home-sem-btn:hover {
  transform: translateY(-3px) scale(1.07);
  box-shadow: 0 9px 18px rgba(30,40,90,.16);
  filter: saturate(1.12);
}

.home-sem-btn:nth-child(1) { background:#e4f4ff; color:#17658e; }
.home-sem-btn:nth-child(2) { background:#e6f8eb; color:#28733a; }
.home-sem-btn:nth-child(3) { background:#fff2d3; color:#906613; }
.home-sem-btn:nth-child(4) { background:#ffe5ec; color:#a13f5a; }
.home-sem-btn:nth-child(5) { background:#eee8ff; color:#6248aa; }
.home-sem-btn:nth-child(6) { background:#e4efff; color:#315d9d; }
.home-sem-btn:nth-child(7) { background:#ffead6; color:#a45e1b; }
.home-sem-btn:nth-child(8) { background:#e3faf4; color:#19735d; }

.latest-list {
  display: grid;
  gap: 9px;
}

.latest-item {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: 9px;
  padding: 11px;
  border-radius: 13px;
  transition: transform .18s ease;
}

.latest-item:hover { transform: translateX(4px) scale(1.015); }
.latest-one { background:#eef1ff; }
.latest-two { background:#fff2dd; }
.latest-three { background:#ffeaf1; }

.latest-dot {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,.65);
}

.latest-item strong,
.latest-item small { display:block; }
.latest-item strong { color:#283250; font-size:12px; }
.latest-item small { color:#78809a; font-size:9px; margin-top:2px; }
.latest-badge {
  font-size: 9px;
  font-weight: 800;
  padding: 5px 7px;
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  color:#6957c8;
}

/* Calculator becomes a modal instead of sitting on homepage */
.calculator-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}

.calculator-modal.open {
  opacity: 1;
  visibility: visible;
}

.calculator-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(14,20,45,.60);
  backdrop-filter: blur(7px);
}

.calculator-dialog {
  position: relative;
  width: min(720px, calc(100% - 24px));
  max-height: calc(100vh - 28px);
  overflow: auto;
  margin: 14px auto;
  border-radius: 24px;
  transform: translateY(14px) scale(.97);
  transition: transform .22s ease;
}

.calculator-modal.open .calculator-dialog {
  transform: translateY(0) scale(1);
}

.calculator-dialog .container {
  width: 100% !important;
  max-width: none !important;
  margin: 0 !important;
  min-height: auto !important;
}

.calculator-close {
  position: sticky;
  float: right;
  top: 12px;
  right: 12px;
  margin: 12px 12px -52px 0;
  width: 38px;
  height: 38px;
  z-index: 1000;
  border: 0;
  border-radius: 50%;
  background:#eef0f6;
  color:#4d5674;
  font-size:24px;
  cursor:pointer;
  transition:transform .18s ease, background .18s ease;
}

.calculator-close:hover {
  transform: rotate(90deg) scale(1.1);
  background:#e4e7f0;
}

/* Contact button lives on homepage */
.home-contact-fab {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 800;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 13px 9px 9px;
  border-radius: 999px;
  text-decoration: none;
  background: rgba(255,255,255,.95);
  border: 2px solid #25D366;
  box-shadow: 0 10px 28px rgba(20,40,70,.20);
  color:#087a39;
  transition: transform .2s ease, box-shadow .2s ease;
}

.home-contact-fab:hover {
  transform: translateY(-4px) scale(1.07);
  box-shadow: 0 14px 32px rgba(37,211,102,.28);
}

.fab-icon {
  width: 36px;
  height: 36px;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:#dcfce7;
  transition:transform .2s ease;
}

.fab-icon svg { width:27px; height:27px; fill:#25D366; }
.home-contact-fab:hover .fab-icon { transform: rotate(-9deg) scale(1.12); }
.fab-copy { display:flex; flex-direction:column; line-height:1.05; }
.fab-copy small { font-size:8px; font-weight:700; opacity:.75; }
.fab-copy strong { font-size:12px; margin-top:2px; }

@media (max-width: 820px) {
  .home-extras { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .home-semester-grid { grid-template-columns: repeat(2, 1fr); }
  .section-note { display:none; }
  .home-contact-fab { right:10px; bottom:10px; padding-right:10px; }
  .fab-copy { display:none; }
  .home-contact-fab { padding:7px; }
}


/* ===== Student Portal V4: developer credit + admin resource manager ===== */

/* Old side watermark hidden permanently in this portal version */
.watermark { display: none !important; }


/* Compact animated developer credit above the contact button */
.developer-corner-credit {
  position: fixed;
  right: 18px;
  bottom: 82px;
  z-index: 799;
  width: 158px;
  padding: 7px 10px 8px;
  text-align: center;
  border-radius: 14px;

  /* cleaner purple-blue glass tone */
  background: linear-gradient(
    135deg,
    rgba(69, 84, 220, .88),
    rgba(32, 167, 221, .82)
  );
  border: 1px solid rgba(255,255,255,.32);
  backdrop-filter: blur(10px);

  box-shadow:
    0 8px 20px rgba(34, 52, 132, .22),
    inset 0 1px 0 rgba(255,255,255,.25);

  user-select: none;
  pointer-events: auto;
  overflow: hidden;

  animation:
    developerFloat 3.2s ease-in-out infinite,
    developerGlow 4.5s ease-in-out infinite alternate;
  transition: transform .22s ease, box-shadow .22s ease;
}

.developer-corner-credit::before {
  content: "";
  position: absolute;
  top: -35%;
  left: -55%;
  width: 38%;
  height: 170%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255,255,255,.48),
    transparent
  );
  transform: rotate(18deg);
  animation: developerShine 4.8s ease-in-out infinite;
}

.corner-developed,
.corner-name {
  position: relative;
  z-index: 2;
  display: block;
}

.corner-developed {
  font-size: 6px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 1.7px;
  text-transform: uppercase;
  color: rgba(235, 245, 255, .88);
}

.corner-name {
  margin-top: 4px;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 13px;
  line-height: 1.05;
  font-weight: 800;
  color: #ffffff;
  text-shadow:
    0 1px 2px rgba(13, 31, 95, .28),
    0 0 8px rgba(255,255,255,.22);
  white-space: nowrap;
}

.developer-corner-credit:hover {
  transform: translateY(-3px) scale(1.045);
  box-shadow:
    0 12px 28px rgba(34, 52, 132, .28),
    0 0 18px rgba(77, 211, 255, .22);
}

@keyframes developerFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes developerGlow {
  0% {
    box-shadow:
      0 8px 20px rgba(34,52,132,.20),
      0 0 0 rgba(122,102,255,0);
  }
  100% {
    box-shadow:
      0 10px 24px rgba(34,52,132,.25),
      0 0 16px rgba(92,220,255,.25);
  }
}

@keyframes developerShine {
  0%, 66% { left: -55%; opacity: 0; }
  72% { opacity: .9; }
  90% { left: 125%; opacity: 0; }
  100% { left: 125%; opacity: 0; }
}

to { text-shadow:0 0 12px #fff,0 0 25px rgba(255,94,193,.52); }
}

/* Small Admin button */
.home-admin-btn {
  position: fixed;
  top: 14px;
  right: 16px;
  z-index: 850;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,.38);
  border-radius: 999px;
  background: rgba(255,255,255,.17);
  color: #fff;
  backdrop-filter: blur(9px);
  font-family: inherit;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 7px 20px rgba(15,25,70,.14);
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
}

.home-admin-btn:hover {
  transform: translateY(-2px) scale(1.07);
  background: rgba(255,255,255,.25);
  box-shadow: 0 10px 25px rgba(15,25,70,.20);
}

.admin-lock { transition: transform .2s ease; }
.home-admin-btn:hover .admin-lock { transform: rotate(90deg) scale(1.08); }

/* Admin modal */
.admin-modal {
  position: fixed;
  inset: 0;
  z-index: 1300;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}

.admin-modal.open {
  opacity: 1;
  visibility: visible;
}

.admin-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12,18,42,.66);
  backdrop-filter: blur(8px);
}

.admin-dialog {
  position: relative;
  width: min(760px, calc(100% - 24px));
  max-height: calc(100vh - 28px);
  overflow: auto;
  margin: 14px auto;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 30px 80px rgba(10,18,50,.34);
  transform: translateY(15px) scale(.97);
  transition: transform .22s ease;
}

.admin-modal.open .admin-dialog {
  transform: translateY(0) scale(1);
}

.admin-close {
  position: absolute;
  top: 13px;
  right: 13px;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  background: #eef0f6;
  color: #4c5571;
  font-size: 24px;
  cursor: pointer;
  z-index: 5;
  transition: transform .18s ease;
}

.admin-close:hover { transform: rotate(90deg) scale(1.08); }

.admin-head {
  text-align: center;
  padding: 27px 24px 18px;
  border-bottom: 1px solid #edf0f6;
}

.admin-kicker {
  color: #7357d5;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.admin-head h2 {
  margin: 5px 0 0;
  color: #202944;
  font-size: 27px;
}

.admin-head p {
  margin: 7px auto 0;
  max-width: 540px;
  color: #707991;
  font-size: 12px;
}

.admin-body { padding: 20px; }

.admin-note {
  padding: 12px 14px;
  border-radius: 13px;
  background: #fff7db;
  color: #7c5a0d;
  font-size: 11px;
  line-height: 1.5;
  margin-bottom: 16px;
}

.admin-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 11px;
}

.admin-form-grid label {
  display: grid;
  gap: 6px;
}

.admin-form-grid label span {
  font-size: 10px;
  font-weight: 800;
  color: #555f7d;
}

.admin-form-grid select,
.admin-form-grid input {
  width: 100%;
  min-height: 42px;
  border: 2px solid #e3e7f1;
  border-radius: 10px;
  padding: 8px 10px;
  font-family: inherit;
  font-size: 12px;
  outline: none;
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.admin-form-grid select:focus,
.admin-form-grid input:focus {
  border-color: #7a68df;
  transform: scale(1.015);
  box-shadow: 0 0 0 3px rgba(122,104,223,.10);
}

.admin-wide { grid-column: 1 / -1; }

.generate-entry-btn {
  width: 100%;
  margin-top: 13px;
  min-height: 44px;
  border: 0;
  border-radius: 11px;
  background: linear-gradient(90deg,#4f7df5,#7b37df);
  color:#fff;
  font-family:inherit;
  font-weight:800;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease;
}

.generate-entry-btn:hover {
  transform: translateY(-2px) scale(1.015);
  box-shadow:0 9px 20px rgba(79,71,190,.22);
}

.generated-entry-wrap {
  margin-top: 13px;
  border: 1px solid #e4e8f1;
  border-radius: 13px;
  overflow: hidden;
}

.generated-entry-head {
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:9px 11px;
  background:#f7f8fc;
  color:#424c69;
  font-size:10px;
}

.generated-entry-head button {
  border:0;
  border-radius:8px;
  padding:6px 9px;
  background:#e8ecff;
  color:#5549b9;
  font-weight:800;
  cursor:pointer;
}

#generatedResourceEntry {
  margin:0;
  padding:12px;
  min-height:86px;
  background:#1d2333;
  color:#d9e3ff;
  overflow:auto;
  font-size:10px;
  line-height:1.45;
  white-space:pre-wrap;
}

.admin-actions {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:9px;
  margin-top:13px;
}

.admin-actions a {
  text-align:center;
  text-decoration:none;
  padding:10px;
  border-radius:10px;
  font-size:10px;
  font-weight:800;
  background:#eef2ff;
  color:#4e4aa8;
  transition:transform .18s ease;
}

.admin-actions a:hover { transform:scale(1.035); }

.admin-steps {
  margin-top:14px;
  padding:13px;
  border-radius:13px;
  background:#f7f9fc;
  color:#5f6883;
  font-size:10px;
  line-height:1.5;
}

.admin-steps strong { color:#303a59; }
.admin-steps ol { margin:7px 0 0; padding-left:18px; }

/* Resource cards when real files exist */
.real-resource-list {
  display:grid;
  gap:10px;
  margin-top:6px;
}

.real-resource-item {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px;
  border-radius:13px;
  background:linear-gradient(135deg,#f1f5ff,#f8f9ff);
  border:1px solid #e2e7f3;
}

.real-resource-item strong {
  display:block;
  color:#273252;
  font-size:12px;
}

.real-resource-item small {
  display:block;
  margin-top:3px;
  color:#7a8299;
  font-size:9px;
}

.real-resource-item a {
  flex:0 0 auto;
  text-decoration:none;
  padding:8px 10px;
  border-radius:9px;
  background:#5d54d9;
  color:#fff;
  font-size:10px;
  font-weight:800;
  transition:transform .17s ease;
}

.real-resource-item a:hover { transform:scale(1.07); }

@media (max-width: 560px) {
  .developer-corner-credit {
    right: 9px;
    bottom: 68px;
    width: 142px;
    padding: 6px 8px 7px;
  }
  .corner-developed { font-size: 5.5px; letter-spacing: 1.35px; }
  .corner-name { font-size: 12px; }

  .home-admin-btn {
    top:8px;
    right:8px;
    padding:7px 9px;
    font-size:9px;
  }

  .admin-form-grid { grid-template-columns:1fr; }
  .admin-wide { grid-column:auto; }
  .admin-actions { grid-template-columns:1fr; }
}


/* ===== V5: public homepage has no admin entry ===== */
.home-admin-btn,
.admin-modal {
  display: none !important;
}


/* ===== V8 SEO content section ===== */
.seo-intro{
  width:min(1080px, calc(100% - 28px));
  margin:18px auto 6px;
  position:relative;
  z-index:5;
}
.seo-intro-inner{
  background:rgba(255,255,255,.92);
  border:1px solid rgba(255,255,255,.68);
  border-radius:22px;
  padding:20px 22px;
  box-shadow:0 14px 34px rgba(31,49,120,.14);
  backdrop-filter:blur(10px);
}
.seo-kicker{
  display:block;
  color:#7357d5;
  font-size:9px;
  font-weight:800;
  letter-spacing:1.3px;
  text-transform:uppercase;
  margin-bottom:5px;
}
.seo-intro h1{
  margin:0;
  color:#222c4a;
  font-size:clamp(22px,3vw,34px);
  line-height:1.12;
}
.seo-intro p{
  margin:10px 0 0;
  color:#66708b;
  font-size:12px;
  line-height:1.65;
  max-width:860px;
}
.seo-keyword-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}
.seo-keyword-links a,
.seo-keyword-links button{
  border:0;
  text-decoration:none;
  background:#eef2ff;
  color:#4f4bb4;
  border-radius:999px;
  padding:8px 11px;
  font:inherit;
  font-size:10px;
  font-weight:800;
  cursor:pointer;
  transition:transform .18s ease, background .18s ease;
}
.seo-keyword-links a:hover,
.seo-keyword-links button:hover{
  transform:translateY(-2px) scale(1.035);
  background:#e4e9ff;
}
@media(max-width:600px){
  .seo-intro{width:min(100% - 16px,1080px);margin-top:12px}
  .seo-intro-inner{padding:16px}
  .seo-intro p{font-size:11px}
}

/* V9 crawlable semester/subject SEO directory */
.seo-subject-directory{width:min(1080px,calc(100% - 28px));margin:18px auto 100px;position:relative;z-index:5}
.seo-directory-inner{background:rgba(255,255,255,.94);border-radius:22px;padding:22px;box-shadow:0 14px 34px rgba(31,49,120,.14)}
.seo-directory-inner>h2{margin:4px 0;color:#222c4a}.seo-directory-inner>p{font-size:12px;color:#6d7690}
.seo-semester-group{margin-top:18px}.seo-semester-group h3{font-size:14px;color:#3d4869;margin:0 0 8px}
.seo-subject-links{display:flex;flex-wrap:wrap;gap:7px}.seo-subject-links a{text-decoration:none;background:#f0f3ff;color:#514bb1;padding:7px 10px;border-radius:999px;font-size:9px;font-weight:700;transition:.18s}
.seo-subject-links a:hover{transform:translateY(-2px);background:#e5eaff}
@media(max-width:600px){.seo-subject-directory{width:calc(100% - 16px)}.seo-directory-inner{padding:16px}}

/* V10: repeated middle SEO panel removed */
.seo-intro{display:none!important}