/* Joanna · European Portuguese Grammar */
:root {
  --lgp-ocean: #0a3a52;
  --lgp-ocean-deep: #062636;
  --lgp-azulejo: #1f7a8c;
  --lgp-azulejo-light: #3aa6b8;
  --lgp-foam: #eef6f8;
  --lgp-paper: #f7fbfc;
  --lgp-ink: #143242;
  --lgp-muted: #5a7380;
  --lgp-gold: #c4a35a;
  --lgp-coral: #c45c48;
  --lgp-ok: #2f7d5a;
  --lgp-shadow: 0 14px 40px rgba(6, 38, 54, 0.14);
  --lgp-radius: 1.1rem;
  --lgp-font-display: "Fraunces", Georgia, serif;
  --lgp-font-body: "Manrope", "Segoe UI", sans-serif;
  --lgp-max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body.lgp-body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body.lgp-body {
  font-family: var(--lgp-font-body);
  color: var(--lgp-ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(58, 166, 184, 0.28), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(196, 163, 90, 0.18), transparent 45%),
    linear-gradient(180deg, #d7ecef 0%, var(--lgp-foam) 28%, var(--lgp-paper) 100%) fixed;
  overflow-x: hidden;
}

.intro-header {
  display: none;
}

#lgp-app {
  width: 100%;
  min-height: 100vh;
  padding: clamp(0.9rem, 2vw, 1.6rem);
  position: relative;
}

.lgp-shell {
  width: 100%;
  max-width: var(--lgp-max);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.lgp-aurora {
  pointer-events: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.lgp-aurora span {
  position: absolute;
  width: 42vw;
  max-width: 420px;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.35;
  animation: lgp-float 12s ease-in-out infinite;
}

.lgp-aurora span:nth-child(1) {
  background: #7ec8d4;
  top: 4%;
  left: -8%;
}

.lgp-aurora span:nth-child(2) {
  background: #c4a35a;
  top: 18%;
  right: -10%;
  animation-delay: -4s;
}

.lgp-aurora span:nth-child(3) {
  background: #1f7a8c;
  bottom: 8%;
  left: 35%;
  animation-delay: -7s;
  opacity: 0.2;
}

@keyframes lgp-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-18px) scale(1.05); }
}

.lgp-topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.lgp-brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: min(100%, 280px);
}

.lgp-brand-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lgp-azulejo);
  font-weight: 700;
}

.lgp-brand-title {
  font-family: var(--lgp-font-display);
  font-size: clamp(1.55rem, 3.4vw, 2.35rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--lgp-ocean-deep);
  margin: 0;
}

.lgp-brand-sub {
  color: var(--lgp-muted);
  font-size: 0.95rem;
  margin: 0;
}

.lgp-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.lgp-btn,
.lgp-chip,
.lgp-icon-btn {
  font-family: inherit;
  border: 0;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.lgp-btn:active,
.lgp-chip:active,
.lgp-icon-btn:active {
  transform: translateY(1px) scale(0.98);
}

.lgp-btn {
  background: var(--lgp-ocean);
  color: #fff;
  border-radius: 999px;
  padding: 0.7rem 1.15rem;
  font-weight: 700;
  font-size: 0.92rem;
  box-shadow: 0 8px 20px rgba(10, 58, 82, 0.22);
}

.lgp-btn:hover {
  background: var(--lgp-ocean-deep);
}

.lgp-btn-secondary {
  background: rgba(255, 255, 255, 0.82);
  color: var(--lgp-ocean);
  border: 1px solid rgba(31, 122, 140, 0.25);
  box-shadow: none;
}

.lgp-btn-secondary:hover {
  background: #fff;
}

.lgp-btn-ghost {
  background: transparent;
  color: var(--lgp-ocean);
  box-shadow: none;
  border: 1px solid transparent;
}

.lgp-btn-ghost:hover {
  border-color: rgba(31, 122, 140, 0.3);
  background: rgba(255, 255, 255, 0.55);
}

.lgp-icon-btn {
  width: 2.55rem;
  height: 2.55rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  color: var(--lgp-ocean);
  border: 1px solid rgba(31, 122, 140, 0.2);
  font-size: 1.05rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.lgp-icon-btn[aria-pressed="true"] {
  background: var(--lgp-azulejo);
  color: #fff;
  border-color: transparent;
}

.lgp-chip {
  background: rgba(255, 255, 255, 0.78);
  color: var(--lgp-ink);
  border: 1px solid rgba(31, 122, 140, 0.18);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.lgp-chip.is-active {
  background: var(--lgp-azulejo);
  color: #fff;
  border-color: transparent;
}

.lgp-progress-wrap {
  margin: 0.35rem 0 1.4rem;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(31, 122, 140, 0.14);
  border-radius: 999px;
  padding: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lgp-progress-bar {
  flex: 1;
  height: 0.55rem;
  border-radius: 999px;
  background: rgba(10, 58, 82, 0.1);
  overflow: hidden;
}

.lgp-progress-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--lgp-azulejo), var(--lgp-gold));
  transition: width 0.45s ease;
}

.lgp-progress-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--lgp-muted);
  white-space: nowrap;
  padding-right: 0.35rem;
}

.lgp-hero {
  background:
    linear-gradient(135deg, rgba(10, 58, 82, 0.94), rgba(31, 122, 140, 0.9)),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  color: #fff;
  border-radius: calc(var(--lgp-radius) + 0.25rem);
  padding: clamp(1.4rem, 3.5vw, 2.4rem);
  box-shadow: var(--lgp-shadow);
  margin-bottom: 1.35rem;
  position: relative;
  overflow: hidden;
  animation: lgp-rise 0.55s ease both;
}

.lgp-hero::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 40% 60% 55% 45%;
  right: -60px;
  top: -80px;
  background: rgba(255, 255, 255, 0.08);
  animation: lgp-blob 10s ease-in-out infinite;
}

@keyframes lgp-blob {
  0%, 100% { transform: rotate(0deg) translateY(0); }
  50% { transform: rotate(18deg) translateY(12px); }
}

@keyframes lgp-rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.lgp-hero h2 {
  font-family: var(--lgp-font-display);
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  margin: 0 0 0.55rem;
  position: relative;
  z-index: 1;
  max-width: 16ch;
}

.lgp-hero p {
  margin: 0 0 1.1rem;
  max-width: 42ch;
  opacity: 0.92;
  line-height: 1.55;
  position: relative;
  z-index: 1;
}

.lgp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  position: relative;
  z-index: 1;
}

.lgp-hero .lgp-btn {
  background: #fff;
  color: var(--lgp-ocean-deep);
}

.lgp-hero .lgp-btn-secondary {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.28);
}

.lgp-search {
  width: 100%;
  margin-bottom: 1rem;
}

.lgp-search input {
  width: 100%;
  border: 1px solid rgba(31, 122, 140, 0.22);
  background: rgba(255, 255, 255, 0.88);
  border-radius: 999px;
  padding: 0.85rem 1.15rem;
  font: inherit;
  color: var(--lgp-ink);
  outline: none;
  box-shadow: 0 6px 18px rgba(6, 38, 54, 0.05);
}

.lgp-search input:focus {
  border-color: var(--lgp-azulejo);
  box-shadow: 0 0 0 3px rgba(31, 122, 140, 0.15);
}

.lgp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 0.9rem;
}

.lgp-module-card {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(31, 122, 140, 0.14);
  border-radius: var(--lgp-radius);
  padding: 1.05rem 1.1rem 1.15rem;
  text-align: left;
  box-shadow: 0 10px 24px rgba(6, 38, 54, 0.06);
  cursor: pointer;
  animation: lgp-rise 0.45s ease both;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 168px;
}

.lgp-module-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--lgp-shadow);
  border-color: rgba(31, 122, 140, 0.35);
}

.lgp-module-card.is-done {
  border-color: rgba(47, 125, 90, 0.4);
}

.lgp-module-card .lgp-mod-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.lgp-module-card .lgp-mod-icon {
  font-size: 1.5rem;
}

.lgp-module-card .lgp-mod-order {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lgp-azulejo);
}

.lgp-module-card h3 {
  font-family: var(--lgp-font-display);
  font-size: 1.18rem;
  margin: 0;
  color: var(--lgp-ocean-deep);
  line-height: 1.25;
}

.lgp-module-card p {
  margin: 0;
  color: var(--lgp-muted);
  font-size: 0.9rem;
  line-height: 1.45;
  flex: 1;
}

.lgp-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: rgba(47, 125, 90, 0.12);
  color: var(--lgp-ok);
}

.lgp-panel {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(31, 122, 140, 0.14);
  border-radius: calc(var(--lgp-radius) + 0.15rem);
  padding: clamp(1rem, 2.5vw, 1.6rem);
  box-shadow: var(--lgp-shadow);
  animation: lgp-rise 0.4s ease both;
}

.lgp-module-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.lgp-module-head h2 {
  font-family: var(--lgp-font-display);
  margin: 0.2rem 0 0.35rem;
  font-size: clamp(1.45rem, 3vw, 2rem);
  color: var(--lgp-ocean-deep);
}

.lgp-module-head p {
  margin: 0;
  color: var(--lgp-muted);
  max-width: 60ch;
  line-height: 1.5;
}

.lgp-tip {
  margin: 1rem 0 1.35rem;
  padding: 0.95rem 1.05rem;
  border-radius: 0.95rem;
  background: linear-gradient(120deg, rgba(196, 163, 90, 0.16), rgba(31, 122, 140, 0.1));
  border-left: 4px solid var(--lgp-gold);
}

.lgp-tip strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--lgp-ocean);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.lgp-tip p {
  margin: 0;
  line-height: 1.5;
}

.lgp-section {
  padding: 1.15rem 0;
  border-top: 1px solid rgba(31, 122, 140, 0.12);
}

.lgp-section h3 {
  font-family: var(--lgp-font-display);
  margin: 0 0 0.65rem;
  font-size: 1.28rem;
  color: var(--lgp-ocean);
}

.lgp-body-text {
  color: var(--lgp-ink);
  line-height: 1.65;
  margin: 0 0 0.9rem;
  white-space: pre-wrap;
}

.lgp-rules {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
  color: var(--lgp-ink);
}

.lgp-rules li {
  margin: 0.35rem 0;
  line-height: 1.45;
}

.lgp-table-wrap {
  overflow-x: auto;
  margin: 0 0 1rem;
  border-radius: 0.85rem;
  border: 1px solid rgba(31, 122, 140, 0.15);
}

.lgp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 420px;
}

.lgp-table caption {
  text-align: left;
  font-weight: 700;
  padding: 0.7rem 0.85rem;
  color: var(--lgp-azulejo);
  background: rgba(31, 122, 140, 0.06);
}

.lgp-table th,
.lgp-table td {
  padding: 0.65rem 0.85rem;
  border-top: 1px solid rgba(31, 122, 140, 0.1);
  text-align: left;
  vertical-align: top;
}

.lgp-table th {
  background: rgba(238, 246, 248, 0.9);
  color: var(--lgp-ocean);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.lgp-examples {
  display: grid;
  gap: 0.65rem;
}

.lgp-example {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.85rem 0.95rem;
  border-radius: 0.9rem;
  background: rgba(238, 246, 248, 0.75);
  border: 1px solid rgba(31, 122, 140, 0.1);
}

.lgp-example-pt {
  font-family: var(--lgp-font-display);
  font-size: 1.15rem;
  color: var(--lgp-ocean-deep);
  margin: 0 0 0.2rem;
}

.lgp-example-meta {
  margin: 0;
  color: var(--lgp-muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.lgp-example-note {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--lgp-azulejo);
}

.lgp-speak {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 0;
  cursor: pointer;
  background: var(--lgp-ocean);
  color: #fff;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 16px rgba(10, 58, 82, 0.2);
  transition: transform 0.15s ease, background 0.15s ease;
}

.lgp-speak:hover {
  background: var(--lgp-azulejo);
  transform: scale(1.05);
}

.lgp-speak.is-playing {
  animation: lgp-pulse 1s ease-in-out infinite;
  background: var(--lgp-azulejo-light);
}

@keyframes lgp-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(58, 166, 184, 0.45); }
  50% { box-shadow: 0 0 0 10px rgba(58, 166, 184, 0); }
}

.lgp-quiz {
  margin-top: 0.5rem;
  padding-top: 1.2rem;
  border-top: 2px solid rgba(31, 122, 140, 0.14);
}

.lgp-quiz h3 {
  font-family: var(--lgp-font-display);
  margin: 0 0 0.85rem;
  color: var(--lgp-ocean-deep);
}

.lgp-quiz-card {
  background: rgba(238, 246, 248, 0.65);
  border: 1px solid rgba(31, 122, 140, 0.14);
  border-radius: 1rem;
  padding: 1rem;
  margin-bottom: 0.85rem;
}

.lgp-quiz-prompt {
  font-weight: 700;
  margin: 0 0 0.75rem;
  line-height: 1.45;
}

.lgp-choices {
  display: grid;
  gap: 0.45rem;
}

.lgp-choice {
  text-align: left;
  background: #fff;
  border: 1px solid rgba(31, 122, 140, 0.18);
  border-radius: 0.8rem;
  padding: 0.75rem 0.9rem;
  font: inherit;
  cursor: pointer;
  color: var(--lgp-ink);
}

.lgp-choice:hover {
  border-color: var(--lgp-azulejo);
}

.lgp-choice.is-correct {
  background: rgba(47, 125, 90, 0.12);
  border-color: var(--lgp-ok);
  color: var(--lgp-ok);
  font-weight: 700;
}

.lgp-choice.is-wrong {
  background: rgba(196, 92, 72, 0.1);
  border-color: var(--lgp-coral);
  color: var(--lgp-coral);
}

.lgp-fill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.lgp-fill-row input {
  flex: 1;
  min-width: 160px;
  border: 1px solid rgba(31, 122, 140, 0.25);
  border-radius: 0.75rem;
  padding: 0.7rem 0.85rem;
  font: inherit;
}

.lgp-feedback {
  margin-top: 0.65rem;
  font-size: 0.9rem;
  line-height: 1.45;
}

.lgp-feedback.ok { color: var(--lgp-ok); }
.lgp-feedback.bad { color: var(--lgp-coral); }

.lgp-sticky-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(31, 122, 140, 0.12);
}

.lgp-practice-hero {
  margin-bottom: 1rem;
}

.lgp-score {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.lgp-stat {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(31, 122, 140, 0.14);
  border-radius: 0.9rem;
  padding: 0.7rem 0.9rem;
  min-width: 110px;
}

.lgp-stat span {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--lgp-muted);
  font-weight: 800;
}

.lgp-stat strong {
  font-family: var(--lgp-font-display);
  font-size: 1.35rem;
  color: var(--lgp-ocean-deep);
}

.lgp-empty {
  text-align: center;
  color: var(--lgp-muted);
  padding: 2rem 1rem;
}

.lgp-footer-note {
  margin-top: 1.5rem;
  text-align: center;
  color: var(--lgp-muted);
  font-size: 0.82rem;
}

@media (max-width: 640px) {
  .lgp-example {
    grid-template-columns: 1fr;
  }

  .lgp-speak {
    width: 100%;
    border-radius: 0.8rem;
    height: 2.4rem;
  }

  .lgp-brand-title {
    max-width: 14ch;
  }
}