@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,600;700&family=Tajawal:wght@400;500;700;800&display=swap');

:root {
  --en-navy: #0D315F;
  --en-navy-deep: #092749;
  --en-navy-soft: #173F70;
  --en-gold: #D6B574;
  --en-gold-soft: #E8D6AE;
  --en-cream: #F7F3EB;
  --en-cream-2: #EFEADF;
  --en-paper: #FFFFFF;
  --en-ink: #102D52;
  --en-text: #263A56;
  --en-muted: #7A8798;
  --en-line: #E6DFD3;
  --en-success: #3F7A5B;
  --en-error: #B5484D;
  --en-shadow: 0 18px 50px rgba(13,49,95,.10);
  --en-shadow-soft: 0 10px 28px rgba(13,49,95,.07);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 18%, rgba(214,181,116,.08), transparent 26%),
    radial-gradient(circle at 88% 55%, rgba(13,49,95,.045), transparent 28%),
    var(--en-cream);
  color: var(--en-text);
  font-family: 'Tajawal', sans-serif;
}

button,
input {
  font: inherit;
}

.grammar-page {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 38px 0 90px;
}

/* HERO */
.grammar-hero {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(330px, .8fr);
  gap: 44px;
  align-items: center;
  padding: 54px 58px;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(255,255,255,.02), rgba(255,255,255,0)),
    var(--en-navy);
  border: 1px solid rgba(214,181,116,.38);
  border-radius: 32px;
  box-shadow: 0 28px 65px rgba(9,39,73,.16);
}

.grammar-hero::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  right: -120px;
  top: -170px;
  border: 1px solid rgba(255,255,255,.08);
}

.grammar-hero::after {
  content: "";
  position: absolute;
  width: 540px;
  height: 540px;
  border-radius: 50%;
  left: -300px;
  bottom: -370px;
  background: rgba(214,181,116,.07);
}

.grammar-hero-copy {
  position: relative;
  z-index: 2;
}

.grammar-kicker,
.grammar-section-kicker {
  display: block;
  color: var(--en-gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .02em;
}

.grammar-kicker::before,
.grammar-kicker::after {
  content: none !important;
  display: none !important;
}

.grammar-hero h1 {
  margin: 16px 0 16px;
  max-width: 610px;
  color: #fff;
  font-size: clamp(34px, 4.1vw, 55px);
  line-height: 1.28;
  letter-spacing: -.03em;
  font-weight: 800;
}

.grammar-hero-copy > p {
  max-width: 630px;
  margin: 0;
  color: rgba(255,255,255,.72);
  font-size: 16px;
  line-height: 1.9;
}

.grammar-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.grammar-stat {
  min-width: 112px;
  padding: 12px 16px 11px;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 15px;
  background: rgba(255,255,255,.055);
  backdrop-filter: blur(8px);
}

.grammar-stat strong {
  display: block;
  direction: ltr;
  color: #fff;
  font-family: 'Fraunces', serif;
  font-size: 22px;
  line-height: 1.05;
}

.grammar-stat span {
  display: block;
  margin-top: 4px;
  color: rgba(255,255,255,.62);
  font-size: 11px;
}

.grammar-hero-art {
  position: relative;
  z-index: 2;
  min-height: 300px;
  display: grid;
  place-items: center;
}

.grammar-art-card {
  position: absolute;
  width: 330px;
  max-width: 92%;
  height: 210px;
  border-radius: 24px;
}

.grammar-art-card-back {
  transform: translate(-28px, 23px) rotate(-6deg);
  background: rgba(214,181,116,.16);
  border: 1px solid rgba(214,181,116,.34);
}

.grammar-art-card-front {
  z-index: 2;
  padding: 30px 27px;
  transform: rotate(2deg);
  color: var(--en-ink);
  background: #FAF7F0;
  border: 1px solid rgba(255,255,255,.72);
  box-shadow: 0 24px 60px rgba(0,0,0,.18);
}

.grammar-art-label {
  color: #8C7447;
  font-family: 'Fraunces', serif;
  font-size: 11px;
  letter-spacing: .15em;
}

.grammar-formula {
  direction: ltr;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 9px;
  align-items: center;
  margin-top: 30px;
}

.grammar-formula span {
  display: grid;
  place-items: center;
  min-height: 46px;
  padding: 8px;
  border-radius: 11px;
  background: #fff;
  border: 1px solid #E5DED1;
  font-family: 'Fraunces', serif;
  font-size: 13px;
}

.grammar-formula i {
  color: var(--en-gold);
  font-style: normal;
  font-weight: 800;
}

.grammar-art-lines {
  display: grid;
  gap: 7px;
  margin-top: 30px;
}

.grammar-art-lines span {
  display: block;
  height: 5px;
  border-radius: 999px;
  background: #E5DED1;
}

.grammar-art-lines span:nth-child(2) {
  width: 78%;
}

.grammar-art-lines span:nth-child(3) {
  width: 57%;
}

.grammar-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(214,181,116,.28);
}

.grammar-orbit-one {
  width: 278px;
  height: 278px;
}

.grammar-orbit-two {
  width: 345px;
  height: 345px;
  border-color: rgba(255,255,255,.08);
}

/* INTRO */
.grammar-intro {
  display: grid;
  grid-template-columns: 1fr .9fr;
  gap: 44px;
  align-items: end;
  margin: 66px 0 26px;
  padding: 0 6px;
}

.grammar-intro h2 {
  margin: 9px 0 0;
  color: var(--en-ink);
  font-size: clamp(25px, 3vw, 37px);
  line-height: 1.35;
  letter-spacing: -.025em;
}

.grammar-intro > p {
  margin: 0;
  color: var(--en-muted);
  line-height: 1.95;
  font-size: 14px;
}

/* APP SHELL */
.grammar-app-shell {
  position: relative;
}

#gs-app {
  --ink: var(--en-ink);
  --ink-soft: var(--en-muted);
  --card: var(--en-paper);
  --card-alt: #F5F1E8;
  --gold: var(--en-gold);
  --error: var(--en-error);
  --success: var(--en-success);

  width: 100%;
  min-height: 320px;
  margin: 0 auto;
  color: var(--en-ink);
}

#gs-app * {
  box-sizing: border-box;
}

#gs-app .gs-eyebrow {
  margin: 0 0 6px;
  color: var(--en-gold) !important;
  text-align: center;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

#gs-app .gs-title {
  margin: 0 0 28px;
  color: var(--en-ink);
  text-align: center;
  font-size: 27px;
  font-weight: 800;
}

/* STAGES */
#gs-app .gs-stage-group {
  position: relative;
  margin-bottom: 20px;
  padding: 25px;
  background: rgba(255,255,255,.64);
  border: 1px solid rgba(13,49,95,.075);
  border-radius: 27px;
  box-shadow: 0 12px 36px rgba(13,49,95,.045);
}

#gs-app .gs-stage-sub {
  width: fit-content;
  margin: 0 0 17px auto;
  padding: 7px 12px;
  color: var(--en-ink) !important;
  background: #F0E9DC;
  border: 1px solid #E7DDCB;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

#gs-app .gs-menu-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 13px;
}

#gs-app .gs-lesson-card {
  position: relative;
  overflow: hidden;
  min-height: 116px;
  display: grid !important;
  grid-template-columns: 42px 1fr 33px;
  gap: 12px !important;
  align-items: center !important;
  width: 100% !important;
  padding: 17px 16px !important;
  text-align: right !important;
  color: var(--en-ink) !important;
  background: var(--en-paper) !important;
  border: 1px solid #ECE5DA !important;
  border-radius: 18px !important;
  box-shadow: 0 7px 20px rgba(13,49,95,.055) !important;
  cursor: pointer !important;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease !important;
}

#gs-app .gs-lesson-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--en-gold);
  transition: transform .2s ease;
}

#gs-app .gs-lesson-card:hover {
  transform: translateY(-3px) !important;
  border-color: #DED0B8 !important;
  box-shadow: 0 15px 30px rgba(13,49,95,.10) !important;
}

#gs-app .gs-lesson-card:hover::after {
  transform: scaleX(1);
}

#gs-app .gs-lesson-num {
  width: 38px !important;
  height: 38px !important;
  display: grid !important;
  place-items: center;
  flex: none !important;
  color: #fff !important;
  background: var(--en-navy) !important;
  border-radius: 12px !important;
  font-family: 'Fraunces', serif !important;
  font-size: 14px !important;
  font-weight: 700 !important;
}

#gs-app .gs-lesson-info {
  min-width: 0;
}

#gs-app .gs-lesson-title {
  display: block !important;
  color: var(--en-ink) !important;
  font-size: 14px !important;
  font-weight: 800 !important;
  line-height: 1.45;
}

#gs-app .gs-lesson-titleen {
  direction: ltr !important;
  display: block !important;
  margin-top: 4px !important;
  color: var(--en-muted) !important;
  font-family: 'Fraunces', serif;
  font-size: 11px !important;
  text-align: right;
}

#gs-app .gs-lesson-icon {
  display: grid;
  place-items: center;
  color: var(--en-gold) !important;
}

#gs-app .gs-lesson-icon svg {
  width: 24px !important;
  height: 24px !important;
  display: block !important;
}

/* TOPBAR INSIDE APP */
#gs-app .gs-topbar {
  max-width: 900px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  margin: 0 auto 22px;
  padding: 11px 14px;
  background: rgba(255,255,255,.56);
  border: 1px solid rgba(13,49,95,.07);
  border-radius: 14px;
}

#gs-app .gs-link-btn {
  padding: 0 !important;
  color: var(--en-muted) !important;
  background: none !important;
  border: 0 !important;
  cursor: pointer !important;
  text-decoration: none !important;
  font-family: 'Tajawal', sans-serif !important;
  font-size: 12px !important;
  font-weight: 700 !important;
}

#gs-app .gs-link-btn:hover {
  color: var(--en-ink) !important;
}

#gs-app .gs-lesson-tag {
  padding: 5px 11px;
  color: var(--en-ink);
  background: #EFE8DB;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

/* LESSON VIEW */
#gs-app .gs-lesson-header {
  max-width: 900px;
  margin: 0 auto 18px;
  text-align: center;
}

#gs-app .gs-lesson-icon-big {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  margin: 0 auto 12px;
  color: var(--en-gold);
  background: #F1E9DA;
  border: 1px solid #E7DAC2;
  border-radius: 18px;
}

#gs-app .gs-lesson-icon-big svg {
  width: 29px;
  height: 29px;
}

#gs-app .gs-lesson-heading {
  margin: 0;
  color: var(--en-ink);
  font-size: clamp(23px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.4;
}

#gs-app .gs-lesson-heading-en {
  direction: ltr;
  margin-top: 5px;
  color: var(--en-muted);
  font-family: 'Fraunces', serif;
  font-size: 13px;
}

#gs-app .gs-lesson-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 30px 31px;
  color: var(--en-text);
  background: var(--en-paper);
  border: 1px solid #EAE3D8;
  border-top: 4px solid var(--en-navy);
  border-radius: 23px;
  box-shadow: var(--en-shadow);
  line-height: 2;
  text-align: right;
}

#gs-app .gs-lesson-content p {
  margin: 0 0 11px;
  font-size: 15px;
  line-height: 2;
}

#gs-app .gs-lesson-content .lc-block {
  margin: 0 0 18px;
}

#gs-app .gs-lesson-content .lc-rule {
  color: var(--en-ink);
}

#gs-app .gs-lesson-content .lc-rule b {
  color: var(--en-navy);
}

#gs-app .gs-lesson-content .lc-formula {
  direction: ltr;
  unicode-bidi: isolate;
  overflow-x: auto;
  margin: 11px 0 14px;
  padding: 15px 18px;
  color: var(--en-ink);
  background: #F5F1E8;
  border: 1px solid #E7DFD1;
  border-radius: 13px;
  font-family: 'Fraunces', serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.65;
  text-align: center;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

#gs-app .gs-lesson-content .lc-formula bdi {
  unicode-bidi: isolate;
}

#gs-app .gs-lesson-content .en {
  direction: ltr;
  unicode-bidi: isolate;
  display: inline-block;
  color: var(--en-navy);
  font-family: 'Fraunces', serif;
}

#gs-app .gs-lesson-content .lc-ex {
  direction: ltr;
  unicode-bidi: isolate;
  display: inline-block;
  color: var(--en-muted);
  font-style: italic;
}

#gs-app .gs-lesson-content .lc-ex-line {
  margin: 7px 0;
  color: var(--en-muted);
  font-size: 14px;
}

#gs-app .gs-lesson-content .lc-note {
  margin: 16px 0;
  padding: 13px 15px;
  color: var(--en-ink);
  background: rgba(214,181,116,.13);
  border-right: 3px solid var(--en-gold);
  border-radius: 12px;
  font-size: 14px;
}

#gs-app .gs-lesson-content .lc-list {
  margin: 0 0 15px;
  padding-inline-start: 22px;
}

#gs-app .gs-lesson-content .lc-list li {
  margin-bottom: 8px;
  font-size: 15px;
}

#gs-app .gs-lesson-content .lc-table {
  width: 100%;
  margin: 14px 0;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid #E7DFD3;
  border-radius: 13px;
  font-size: 13px;
}

#gs-app .gs-lesson-content .lc-table th,
#gs-app .gs-lesson-content .lc-table td {
  padding: 10px 8px;
  text-align: center;
  border-left: 1px solid #ECE5DB;
  border-bottom: 1px solid #ECE5DB;
}

#gs-app .gs-lesson-content .lc-table tr:last-child td {
  border-bottom: 0;
}

#gs-app .gs-lesson-content .lc-table th:last-child,
#gs-app .gs-lesson-content .lc-table td:last-child {
  border-left: 0;
}

#gs-app .gs-lesson-content .lc-table th {
  color: var(--en-ink);
  background: #F5F1E8;
  font-weight: 800;
}

/* BUTTONS */
#gs-app .gs-btn-row {
  max-width: 900px;
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 22px auto 0;
}

#gs-app .gs-btn {
  min-height: 44px;
  padding: 11px 25px !important;
  color: #fff !important;
  background: var(--en-navy) !important;
  border: 1px solid var(--en-navy) !important;
  border-radius: 999px !important;
  box-shadow: 0 8px 20px rgba(13,49,95,.14);
  cursor: pointer !important;
  font-family: 'Tajawal', sans-serif !important;
  font-size: 13px !important;
  font-weight: 800 !important;
  transition: transform .16s ease, box-shadow .16s ease, opacity .16s ease !important;
}

#gs-app .gs-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 11px 25px rgba(13,49,95,.19);
}

#gs-app .gs-btn-ghost {
  color: var(--en-ink) !important;
  background: #F2ECE1 !important;
  border-color: #E4D9C7 !important;
  box-shadow: none;
}

#gs-app .gs-btn:disabled {
  opacity: .38 !important;
  cursor: default !important;
}

/* QUIZ */
#gs-app .gs-hud,
#gs-app .gs-progress-track,
#gs-app .gs-type-badge,
#gs-app .gs-question-card,
#gs-app .gs-options,
#gs-app .gs-fill-box,
#gs-app .gs-next-wrap,
#gs-app .gs-big-score,
#gs-app .gs-score-label,
#gs-app .gs-badge-msg {
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

#gs-app .gs-hud {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 9px;
}

#gs-app .gs-progress-num {
  direction: ltr;
  color: var(--en-ink);
  font-family: 'Fraunces', serif;
  font-size: 14px;
  font-weight: 700;
}

#gs-app .gs-score-badge {
  padding: 5px 12px !important;
  color: var(--en-ink) !important;
  background: #EFE8DB !important;
  border-radius: 999px !important;
  font-size: 12px !important;
  font-weight: 800 !important;
}

#gs-app .gs-progress-track {
  height: 6px;
  overflow: hidden;
  margin-bottom: 17px;
  background: #E3DDD3;
  border-radius: 999px;
}

#gs-app .gs-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--en-gold), #E4C98F);
  border-radius: 999px;
  transition: width .25s ease;
}

#gs-app .gs-type-badge {
  display: block;
  width: fit-content;
  margin-bottom: 11px;
  padding: 5px 12px;
  color: #fff;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
}

#gs-app .gs-type-fill {
  background: #6B8F71;
}

#gs-app .gs-type-mcq {
  background: #B99048;
}

#gs-app .gs-type-error {
  background: #A25B7A;
}

#gs-app .gs-question-card {
  margin-bottom: 14px;
  padding: 26px 22px;
  background: var(--en-paper);
  border: 1px solid #EAE3D8;
  border-top: 4px solid var(--en-navy);
  border-radius: 21px;
  box-shadow: var(--en-shadow-soft);
}

#gs-app .gs-question {
  direction: ltr;
  color: var(--en-ink);
  font-family: 'Fraunces', serif;
  font-size: clamp(17px, 2.3vw, 21px);
  font-weight: 700;
  line-height: 1.65;
  text-align: center;
}

#gs-app .gs-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

#gs-app .gs-options.gs-options-full {
  grid-template-columns: 1fr;
}

#gs-app .gs-option {
  min-height: 49px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 11px 12px !important;
  color: var(--en-ink) !important;
  background: var(--en-paper) !important;
  border: 1.5px solid #E2DBD0 !important;
  border-radius: 13px !important;
  cursor: pointer !important;
  direction: ltr !important;
  text-align: center !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  transition: all .15s ease !important;
}

#gs-app .gs-option:hover:not(:disabled) {
  border-color: var(--en-gold) !important;
  transform: translateY(-1px);
}

#gs-app .gs-option.correct {
  color: #fff !important;
  background: var(--en-success) !important;
  border-color: var(--en-success) !important;
}

#gs-app .gs-option.wrong {
  color: #fff !important;
  background: var(--en-error) !important;
  border-color: var(--en-error) !important;
}

#gs-app .gs-option.reveal {
  border-color: var(--en-success) !important;
  box-shadow: inset 0 0 0 1px var(--en-success);
}

#gs-app .gs-option:disabled {
  cursor: default !important;
}

#gs-app .gs-fill-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
}

#gs-app input#gs-fill-input {
  width: 100% !important;
  min-height: 52px;
  padding: 11px 14px !important;
  color: var(--en-ink) !important;
  background: #fff !important;
  border: 1.5px solid #DDD5C8 !important;
  border-radius: 13px !important;
  outline: none !important;
  direction: ltr !important;
  text-align: center !important;
  font-family: 'Fraunces', serif !important;
  font-size: 17px !important;
  transition: border-color .15s ease, box-shadow .15s ease;
}

#gs-app input#gs-fill-input:focus {
  border-color: var(--en-navy) !important;
  box-shadow: 0 0 0 4px rgba(13,49,95,.07);
}

#gs-app input#gs-fill-input.gs-correct {
  border-color: var(--en-success) !important;
  background: rgba(63,122,91,.06) !important;
}

#gs-app input#gs-fill-input.gs-wrong {
  border-color: var(--en-error) !important;
  background: rgba(181,72,77,.06) !important;
}

#gs-app .gs-feedback {
  min-height: 20px;
  margin-top: 2px;
  font-size: 13px;
  font-weight: 800;
}

#gs-app .gs-feedback.ok {
  color: var(--en-success) !important;
}

#gs-app .gs-feedback.fail {
  color: var(--en-error) !important;
}

#gs-app .gs-next-wrap {
  margin-top: 15px;
  text-align: center;
}

#gs-app .gs-big-score {
  direction: ltr;
  margin-top: 21px;
  color: var(--en-ink);
  font-family: 'Fraunces', serif;
  font-size: 58px;
  font-weight: 700;
  line-height: 1;
  text-align: center;
}

#gs-app .gs-score-label {
  margin-top: 8px;
  margin-bottom: 17px;
  color: var(--en-muted) !important;
  font-size: 13px;
  text-align: center;
}

#gs-app .gs-badge-msg {
  display: block;
  width: fit-content;
  padding: 7px 16px !important;
  color: var(--en-ink) !important;
  background: #EFE8DB !important;
  border: 1px solid #E4D7C2;
  border-radius: 999px !important;
  font-size: 12px !important;
  font-weight: 800 !important;
  text-align: center;
}

/* LOADING */
.grammar-loading {
  display: flex;
  min-height: 240px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: var(--en-muted);
}

.grammar-loading span {
  width: 7px;
  height: 7px;
  display: inline-block;
  background: var(--en-gold);
  border-radius: 50%;
  animation: grammarPulse 1s infinite alternate;
}

.grammar-loading span:nth-child(2) {
  animation-delay: .15s;
}

.grammar-loading span:nth-child(3) {
  animation-delay: .3s;
}

.grammar-loading p {
  margin-top: 7px;
  font-size: 12px;
}

@keyframes grammarPulse {
  from { opacity: .35; transform: scale(.8); }
  to { opacity: 1; transform: scale(1.15); }
}

/* FOOTER */
.grammar-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 35px;
}

.grammar-footer > div {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 21px;
  color: var(--en-muted);
  border-top: 1px solid #DDD6CA;
  font-size: 11px;
}

.grammar-footer strong {
  color: var(--en-ink);
}

/* RESPONSIVE */
@media (max-width: 980px) {
  .grammar-hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .grammar-hero-art {
    min-height: 260px;
  }

  #gs-app .gs-menu-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .grammar-page {
    width: min(100% - 24px, 1120px);
    padding-top: 18px;
  }

  .grammar-hero {
    gap: 28px;
    padding: 36px 24px;
    border-radius: 24px;
  }

  .grammar-hero h1 {
    font-size: 36px;
  }

  .grammar-hero-copy > p {
    font-size: 14px;
  }

  .grammar-stat {
    flex: 1 1 90px;
    min-width: 0;
  }

  .grammar-art-card {
    width: 300px;
    height: 195px;
  }

  .grammar-intro {
    grid-template-columns: 1fr;
    gap: 13px;
    margin-top: 44px;
  }

  #gs-app .gs-stage-group {
    padding: 18px;
    border-radius: 21px;
  }

  #gs-app .gs-menu-grid {
    grid-template-columns: 1fr;
  }

  #gs-app .gs-lesson-card {
    min-height: 94px;
  }

  #gs-app .gs-lesson-content {
    padding: 22px 18px;
    border-radius: 18px;
  }

  #gs-app .gs-options {
    grid-template-columns: 1fr;
  }

  #gs-app .gs-btn-row {
    align-items: stretch;
  }

  #gs-app .gs-btn-row .gs-btn {
    flex: 1 1 140px;
  }

  .grammar-footer {
    width: calc(100% - 24px);
  }

  .grammar-footer > div {
    flex-direction: column;
    gap: 4px;
  }
}

@media (max-width: 460px) {
  .grammar-hero-art {
    min-height: 225px;
  }

  .grammar-art-card {
    width: 260px;
    height: 175px;
    padding: 24px 19px;
  }

  .grammar-formula {
    gap: 5px;
  }

  .grammar-formula span {
    min-height: 39px;
    font-size: 11px;
  }

  .grammar-stats {
    gap: 7px;
  }

  .grammar-stat {
    padding: 10px 11px;
  }

  #gs-app .gs-topbar {
    align-items: flex-start;
  }

  #gs-app .gs-lesson-content .lc-table {
    font-size: 11px;
  }

  #gs-app .gs-lesson-content .lc-table th,
  #gs-app .gs-lesson-content .lc-table td {
    padding: 8px 5px;
  }
}


/* ===== Grammar Roadmap — unique section identity ===== */
#gs-app .gs-roadmap-head {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  margin: 0 0 18px;
  padding: 25px 28px;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(255,255,255,.025), rgba(255,255,255,0)),
    #102F56;
  border: 1px solid rgba(214,181,116,.26);
  border-radius: 22px;
  box-shadow: 0 16px 38px rgba(13,49,95,.10);
}

#gs-app .gs-roadmap-head::after {
  content: "";
  position: absolute;
  width: 230px;
  height: 230px;
  left: -90px;
  bottom: -150px;
  border: 1px solid rgba(214,181,116,.16);
  border-radius: 50%;
}

#gs-app .gs-roadmap-copy,
#gs-app .gs-roadmap-meta {
  position: relative;
  z-index: 1;
}

#gs-app .gs-roadmap-kicker {
  direction: ltr;
  display: block;
  color: var(--en-gold);
  font-family: 'Fraunces', serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .16em;
}

#gs-app .gs-roadmap-title {
  margin: 6px 0 4px;
  color: #fff;
  font-size: 25px;
  font-weight: 800;
  line-height: 1.35;
}

#gs-app .gs-roadmap-text {
  max-width: 610px;
  margin: 0;
  color: rgba(255,255,255,.65);
  font-size: 12px;
  line-height: 1.9;
}

#gs-app .gs-roadmap-meta {
  direction: ltr;
  min-width: 195px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 17px;
  padding: 12px 17px;
  background: rgba(255,255,255,.055);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 16px;
}

#gs-app .gs-roadmap-meta span {
  display: grid;
  justify-items: center;
  gap: 2px;
}

#gs-app .gs-roadmap-meta strong {
  color: #fff;
  font-family: 'Fraunces', serif;
  font-size: 22px;
  line-height: 1;
}

#gs-app .gs-roadmap-meta small {
  color: rgba(255,255,255,.54);
  font-size: 10px;
}

#gs-app .gs-roadmap-meta i {
  width: 1px;
  height: 30px;
  background: rgba(255,255,255,.13);
}

@media (max-width: 720px) {
  #gs-app .gs-roadmap-head {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 21px 19px;
  }

  #gs-app .gs-roadmap-meta {
    width: fit-content;
    min-width: 180px;
  }
}

/* Consistency fix: no decorative line beside review number */
.grammar-hero .grammar-kicker::before,
.grammar-hero .grammar-kicker::after {
  content: none !important;
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}


/* =========================================================
   English Nest — Idea 09: Grammar Answer Feedback
   Visual answer feedback only. No layout redesign.
   ========================================================= */

/* Multiple choice — correct answer */
#gs-app .gs-option.correct{
  animation:gsAnswerCorrect .46s cubic-bezier(.22,1,.36,1) both;
  box-shadow:0 0 0 4px rgba(63,122,91,.10), 0 8px 22px rgba(63,122,91,.12) !important;
}

/* Multiple choice — chosen wrong answer */
#gs-app .gs-option.wrong{
  animation:gsAnswerWrong .38s ease-out both;
  box-shadow:0 0 0 4px rgba(181,72,77,.08) !important;
}

/* The correct choice revealed after a wrong click */
#gs-app .gs-option.reveal{
  animation:gsRevealCorrect .62s cubic-bezier(.22,1,.36,1) .08s both;
}

@keyframes gsAnswerCorrect{
  0%{transform:scale(.985);filter:saturate(.85)}
  52%{transform:scale(1.025);filter:saturate(1.12)}
  100%{transform:scale(1);filter:none}
}

@keyframes gsAnswerWrong{
  0%,100%{transform:translateX(0)}
  20%{transform:translateX(-5px)}
  42%{transform:translateX(5px)}
  62%{transform:translateX(-3px)}
  80%{transform:translateX(2px)}
}

@keyframes gsRevealCorrect{
  0%{transform:scale(.985);box-shadow:inset 0 0 0 1px var(--en-success)}
  48%{transform:scale(1.018);box-shadow:inset 0 0 0 1px var(--en-success),0 0 0 4px rgba(63,122,91,.08)}
  100%{transform:scale(1);box-shadow:inset 0 0 0 1px var(--en-success)}
}

/* Fill-in answer feedback */
#gs-app input#gs-fill-input.gs-correct{
  animation:gsFillCorrect .46s cubic-bezier(.22,1,.36,1) both;
  box-shadow:0 0 0 4px rgba(63,122,91,.09) !important;
}

#gs-app input#gs-fill-input.gs-wrong{
  animation:gsFillWrong .38s ease-out both;
  box-shadow:0 0 0 4px rgba(181,72,77,.07) !important;
}

@keyframes gsFillCorrect{
  0%{transform:scale(.994)}
  50%{transform:scale(1.012)}
  100%{transform:scale(1)}
}

@keyframes gsFillWrong{
  0%,100%{transform:translateX(0)}
  22%{transform:translateX(-4px)}
  45%{transform:translateX(4px)}
  68%{transform:translateX(-2px)}
  84%{transform:translateX(2px)}
}

/* Feedback text appears as part of the answer event */
#gs-app .gs-feedback.ok.gs-feedback-enter,
#gs-app .gs-feedback.fail.gs-feedback-enter{
  animation:gsFeedbackEnter .34s cubic-bezier(.22,1,.36,1) both;
}

#gs-app .gs-feedback.ok.gs-feedback-enter{
  text-shadow:0 5px 18px rgba(63,122,91,.10);
}

#gs-app .gs-feedback.fail.gs-feedback-enter{
  text-shadow:0 5px 18px rgba(181,72,77,.08);
}

@keyframes gsFeedbackEnter{
  from{opacity:0;transform:translateY(5px) scale(.98)}
  to{opacity:1;transform:none}
}

/* Next-step button appears only after the answer is resolved */
#gs-app .gs-next-wrap .gs-btn.gs-next-enter{
  animation:gsNextEnter .34s cubic-bezier(.22,1,.36,1) both;
}

@keyframes gsNextEnter{
  from{opacity:0;transform:translateY(7px)}
  to{opacity:1;transform:none}
}

@media (prefers-reduced-motion:reduce){
  #gs-app .gs-option.correct,
  #gs-app .gs-option.wrong,
  #gs-app .gs-option.reveal,
  #gs-app input#gs-fill-input.gs-correct,
  #gs-app input#gs-fill-input.gs-wrong,
  #gs-app .gs-feedback.ok.gs-feedback-enter,
  #gs-app .gs-feedback.fail.gs-feedback-enter,
  #gs-app .gs-next-wrap .gs-btn.gs-next-enter{
    animation:none !important;
    transform:none !important;
  }
}


/* =========================================================
   English Nest — Idea 10: Progress + Result Number Motion
   Grammar quiz only
   ========================================================= */

#gs-app .gs-progress-fill{
  transition:width .46s cubic-bezier(.22,1,.36,1) !important;
}

#gs-app .gs-progress-num.gs-progress-pop{
  animation:gsProgressNumPop .34s cubic-bezier(.22,1,.36,1);
}

#gs-app .gs-score-badge.gs-score-pop{
  animation:gsScoreBadgePop .38s cubic-bezier(.22,1,.36,1);
}

@keyframes gsProgressNumPop{
  0%{opacity:.55;transform:translateY(3px) scale(.96)}
  58%{opacity:1;transform:translateY(0) scale(1.06)}
  100%{opacity:1;transform:scale(1)}
}

@keyframes gsScoreBadgePop{
  0%{transform:scale(.96)}
  52%{transform:scale(1.08)}
  100%{transform:scale(1)}
}

#gs-app .gs-big-score.gs-result-counting{
  animation:gsFinalScoreReveal .58s cubic-bezier(.22,1,.36,1);
}

#gs-app .gs-score-label.gs-result-counting{
  animation:gsFinalPctReveal .58s .06s cubic-bezier(.22,1,.36,1) both;
}

@keyframes gsFinalScoreReveal{
  0%{opacity:.35;transform:translateY(7px) scale(.94)}
  62%{opacity:1;transform:translateY(0) scale(1.045)}
  100%{opacity:1;transform:scale(1)}
}

@keyframes gsFinalPctReveal{
  from{opacity:0;transform:translateY(5px)}
  to{opacity:1;transform:none}
}

@media (prefers-reduced-motion:reduce){
  #gs-app .gs-progress-num.gs-progress-pop,
  #gs-app .gs-score-badge.gs-score-pop,
  #gs-app .gs-big-score.gs-result-counting,
  #gs-app .gs-score-label.gs-result-counting{
    animation:none !important;
    transform:none !important;
  }

  #gs-app .gs-progress-fill{
    transition:none !important;
  }
}