:root {
  --student-bg: #f5f8fb;
  --student-surface: #ffffff;
  --student-surface-2: #f8fbfd;
  --student-border: #dbeaf0;
  --student-text: #14212b;
  --student-muted: #61717d;
  --student-primary: #2080a0;
  --student-primary-2: #48a0b0;
  --student-primary-soft: rgba(32, 128, 160, 0.1);
  --student-danger: #b42318;
  --student-radius: 18px;
  --student-shadow: 0 18px 45px rgba(18, 50, 64, 0.08);
}

* {
  box-sizing: border-box;
}

body.student-body {
  margin: 0;
  background: var(--student-bg);
  color: var(--student-text);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  line-height: 1.5;
}

body.student-body a {
  color: inherit;
  text-decoration: none;
}

/* =========================
   LOGIN
========================= */

.student-login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
  background:
    radial-gradient(
      circle at 30% 20%,
      rgba(72, 160, 176, 0.18),
      transparent 34%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(32, 128, 160, 0.16),
      transparent 38%
    ),
    var(--student-bg);
}

.student-login-card {
  width: min(460px, 100%);
  padding: 30px;
  border-radius: 24px;
  border: 1px solid var(--student-border);
  background: var(--student-surface);
  box-shadow: var(--student-shadow);
}

.student-login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.student-login-brand h1 {
  margin: 0;
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: -0.5px;
}

.student-login-brand p {
  margin: 6px 0 0;
  color: var(--student-muted);
  font-weight: 650;
}

.student-login-footer {
  margin-top: 18px;
  text-align: center;
  color: var(--student-muted);
  font-weight: 750;
}

.student-login-footer a:hover {
  color: var(--student-primary);
}

/* =========================
   COMMON
========================= */

.student-brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(
    135deg,
    var(--student-primary-2),
    var(--student-primary)
  );
  color: #fff;
  font-weight: 950;
}

.student-grid {
  display: grid;
  gap: 18px;
}

.student-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.student-field span {
  color: var(--student-text);
  font-weight: 850;
  font-size: 14px;
  line-height: 1.25;
}

.student-field input,
.student-field textarea,
.student-field select {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--student-border);
  background: #fff;
  color: var(--student-text);
  font: inherit;
  line-height: 1.4;
  outline: none;
}

.student-field input:focus,
.student-field textarea:focus,
.student-field select:focus {
  border-color: rgba(32, 128, 160, 0.65);
  box-shadow: 0 0 0 4px var(--student-primary-soft);
}

.student-btn {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--student-border);
  background: #fff;
  color: var(--student-primary);
  font: inherit;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    background 0.15s ease;
}

.student-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(18, 50, 64, 0.08);
}

.student-btn.primary {
  border-color: transparent;
  color: #fff;
  background: linear-gradient(
    135deg,
    var(--student-primary-2),
    var(--student-primary)
  );
  box-shadow: 0 14px 28px rgba(32, 128, 160, 0.2);
}

.student-btn.full {
  width: 100%;
}

.student-alert {
  padding: 12px 14px;
  border-radius: 14px;
  font-weight: 800;
  margin-bottom: 18px;
}

.student-alert.error {
  color: var(--student-danger);
  background: rgba(180, 35, 24, 0.08);
  border: 1px solid rgba(180, 35, 24, 0.14);
}

/* =========================
   DASHBOARD
========================= */

.student-shell {
  min-height: 100vh;
  background: var(--student-bg);
}

.student-header {
  min-height: 76px;
  padding: 16px 32px;
  background: #07131a;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.student-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.student-brand strong {
  display: block;
  font-size: 17px;
  line-height: 1.1;
}

.student-brand span {
  display: block;
  color: rgba(255, 255, 255, 0.62);
  font-weight: 750;
  font-size: 13px;
}

.student-user {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 850;
}

.student-main {
  padding: 36px 42px;
}

.student-container {
  max-width: 1080px;
  margin: 0 auto;
}

.student-topbar {
  margin-bottom: 24px;
}

.student-topbar h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: -0.6px;
}

.student-topbar p {
  margin: 6px 0 0;
  color: var(--student-muted);
  font-weight: 650;
}

.student-card {
  padding: 28px;
  border-radius: var(--student-radius);
  border: 1px solid var(--student-border);
  background: var(--student-surface);
  box-shadow: var(--student-shadow);
}

.student-empty {
  padding: 24px;
  text-align: center;
  color: var(--student-muted);
  font-weight: 700;
}

.student-course-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.student-course-card {
  padding: 22px;
  border-radius: 18px;
  border: 1px solid var(--student-border);
  background: #fff;
  display: grid;
  gap: 12px;
}

.student-kicker {
  color: var(--student-muted);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.student-course-card h2 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.3px;
}

.student-course-card p {
  margin: 0;
  color: var(--student-muted);
  font-weight: 650;
  line-height: 1.6;
}

.student-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 1000px) {
  .student-course-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .student-login-page {
    padding: 18px;
  }

  .student-login-card {
    padding: 24px;
  }

  .student-header {
    padding: 16px;
    align-items: flex-start;
    flex-direction: column;
  }

  .student-user {
    width: 100%;
    justify-content: space-between;
  }

  .student-main {
    padding: 22px;
  }

  .student-card {
    padding: 22px;
  }

  .student-course-grid {
    grid-template-columns: 1fr;
  }
}

.student-alert.success {
  color: #067647;
  background: rgba(6, 118, 71, 0.1);
  border: 1px solid rgba(6, 118, 71, 0.16);
}

.student-alert a {
  color: inherit;
  font-weight: 900;
  text-decoration: underline;
}

/* =========================
   COURSE / MODULES
========================= */

.student-progress-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.student-progress-box strong {
  display: block;
  font-size: 18px;
}

.student-progress-text {
  margin: 4px 0 0;
  color: var(--student-muted);
  font-weight: 650;
  line-height: 1.4;
}

.student-progress-text span {
  display: inline;
}

.student-progress-number {
  font-size: 30px;
  font-weight: 950;
  color: var(--student-primary);
  white-space: nowrap;
}

.student-progress-bar {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: var(--student-surface-2);
  overflow: hidden;
  border: 1px solid var(--student-border);
}

.student-progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    var(--student-primary-2),
    var(--student-primary)
  );
}

.student-modules-card {
  margin-top: 18px;
}

.student-modules {
  display: grid;
  gap: 18px;
}

.student-module {
  border: 1px solid var(--student-border);
  border-radius: 18px;
  background: #fff;
  overflow: hidden;
}

.student-module-head {
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(72, 160, 176, 0.07), rgba(255, 255, 255, 0)),
    #fff;
  border-bottom: 1px solid var(--student-border);
}

.student-module-head h2 {
  margin: 4px 0 0;
  font-size: 22px;
  letter-spacing: -0.3px;
}

.student-module-head p {
  margin: 8px 0 0;
  color: var(--student-muted);
  font-weight: 650;
}

.student-lessons {
  display: grid;
}

.student-lesson {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--student-border);
}

.student-lesson:last-child {
  border-bottom: 0;
}

.student-lesson.completed {
  background: rgba(6, 118, 71, 0.04);
}

.student-lesson-main {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  min-width: 0;
}

.student-lesson-status {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: var(--student-primary);
  background: var(--student-primary-soft);
  font-weight: 950;
}

.student-lesson.completed .student-lesson-status {
  color: #067647;
  background: rgba(6, 118, 71, 0.12);
}

.student-lesson-main strong {
  display: block;
  font-size: 16px;
}

.student-lesson-main p {
  margin: 5px 0 0;
  color: var(--student-muted);
  font-weight: 650;
}

.student-lesson-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.student-lesson-links a {
  color: var(--student-primary);
  font-weight: 850;
}

.student-empty.compact {
  padding: 18px;
}

@media (max-width: 760px) {
  .student-progress-box {
    align-items: flex-start;
    flex-direction: column;
  }

  .student-lesson {
    align-items: flex-start;
    flex-direction: column;
  }

  .student-lesson form,
  .student-lesson .student-btn {
    width: 100%;
  }
}

/* =========================
   COURSE / MODULES
========================= */

.student-progress-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.student-progress-box strong {
  display: block;
  font-size: 18px;
}

.student-progress-box span {
  display: block;
  color: var(--student-muted);
  font-weight: 650;
  margin-top: 4px;
}

.student-progress-number {
  font-size: 30px;
  font-weight: 950;
  color: var(--student-primary);
}

.student-progress-bar {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: var(--student-surface-2);
  overflow: hidden;
  border: 1px solid var(--student-border);
}

.student-progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    var(--student-primary-2),
    var(--student-primary)
  );
}

/* Layout player */
.student-learning-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  margin-top: 18px;
}

.student-lessons-sidebar {
  position: sticky;
  top: 22px;
  border: 1px solid var(--student-border);
  border-radius: 22px;
  background: var(--student-surface);
  box-shadow: var(--student-shadow);
  overflow: hidden;
}

.student-sidebar-head {
  padding: 20px;
  border-bottom: 1px solid var(--student-border);
  background:
    linear-gradient(180deg, rgba(72, 160, 176, 0.08), rgba(255, 255, 255, 0)),
    #fff;
}

.student-sidebar-head h2 {
  margin: 4px 0 0;
  font-size: 22px;
  letter-spacing: -0.3px;
}

.student-sidebar-module {
  padding: 16px;
  border-bottom: 1px solid var(--student-border);
}

.student-sidebar-module:last-child {
  border-bottom: 0;
}

.student-sidebar-module h3 {
  margin: 0 0 10px;
  font-size: 15px;
  color: var(--student-text);
}

.student-sidebar-lesson {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 14px;
  color: var(--student-muted);
  font-weight: 750;
}

.student-sidebar-lesson:hover {
  background: var(--student-primary-soft);
  color: var(--student-text);
}

.student-sidebar-lesson.active {
  background: linear-gradient(
    135deg,
    rgba(72, 160, 176, 0.16),
    rgba(32, 128, 160, 0.1)
  );
  color: var(--student-primary);
}

.student-sidebar-lesson.completed span {
  color: #067647;
}

.student-sidebar-lesson span {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--student-surface-2);
  font-weight: 950;
}

.student-sidebar-lesson.active span {
  background: #fff;
}

.student-sidebar-lesson strong {
  font-weight: 750;
  line-height: 1.3;
}

.student-lesson-view {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.student-video-card {
  border-radius: 24px;
  border: 1px solid var(--student-border);
  background: #000;
  box-shadow: var(--student-shadow);
  overflow: hidden;
}

.student-video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}

.student-video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.student-video-placeholder {
  min-height: 420px;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
  background:
    radial-gradient(
      circle at 50% 30%,
      rgba(72, 160, 176, 0.24),
      transparent 40%
    ),
    #05090c;
}

.student-lesson-content {
  padding: 28px;
  border-radius: 22px;
  border: 1px solid var(--student-border);
  background: var(--student-surface);
  box-shadow: var(--student-shadow);
}

.student-lesson-content h2 {
  margin: 4px 0 10px;
  font-size: 28px;
  letter-spacing: -0.5px;
}

.student-lesson-content p {
  margin: 0 0 18px;
  color: var(--student-muted);
  font-weight: 650;
  line-height: 1.7;
}

.student-empty.compact {
  padding: 18px;
}

@media (max-width: 980px) {
  .student-learning-layout {
    grid-template-columns: 1fr;
  }

  .student-lessons-sidebar {
    position: static;
  }

  .student-video-placeholder {
    min-height: 260px;
  }
}

.student-progress-number {
  white-space: nowrap;
}

/* FIX — texto do progresso numa só linha */
.student-progress-box .student-progress-text {
  display: block;
  margin: 4px 0 0;
  color: var(--student-muted);
  font-weight: 650;
  line-height: 1.4;
  white-space: nowrap;
}

.student-progress-box .student-progress-text span {
  display: inline !important;
  margin: 0;
}

.student-progress-box .student-progress-text #completedLessonsCount,
.student-progress-box .student-progress-text #totalLessonsCount {
  display: inline !important;
}

/* =========================
   AVAILABLE COURSES
========================= */

.student-section-title {
  margin-top: 34px;
}

.student-course-available {
  background:
    linear-gradient(180deg, rgba(72, 160, 176, 0.06), rgba(255, 255, 255, 0)),
    #fff;
}

.student-course-price {
  color: var(--student-primary);
  font-size: 22px;
  font-weight: 950;
  letter-spacing: -0.4px;
}

.student-btn-logout {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.student-btn-logout:hover {
  background: rgba(255, 255, 255, 0.14);
  box-shadow: none;
}
/* =========================
   STUDENT DASHBOARD POLISH
========================= */

.student-welcome-card {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 28px;
  margin-bottom: 28px;
  border-radius: 24px;
  border: 1px solid var(--student-border);
  background:
    radial-gradient(
      circle at 10% 0%,
      rgba(72, 160, 176, 0.16),
      transparent 35%
    ),
    linear-gradient(135deg, #ffffff, #f8fbfd);
  box-shadow: var(--student-shadow);
}

.student-welcome-card h1 {
  margin: 4px 0 8px;
  font-size: 34px;
  line-height: 1.05;
  letter-spacing: -0.8px;
}

.student-welcome-card p {
  margin: 0;
  color: var(--student-muted);
  font-weight: 650;
}

.student-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 12px;
}

.student-summary-item {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--student-border);
  background: #fff;
  text-align: center;
}

.student-summary-item strong {
  display: block;
  color: var(--student-primary);
  font-size: 30px;
  line-height: 1;
  font-weight: 950;
}

.student-summary-item span {
  display: block;
  margin-top: 6px;
  color: var(--student-muted);
  font-size: 13px;
  font-weight: 800;
}

.student-course-progress {
  display: grid;
  gap: 8px;
}

.student-course-progress-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  color: var(--student-muted);
  font-weight: 800;
}

.student-course-progress-head strong {
  color: var(--student-primary);
}

.student-mini-progress-bar {
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--student-border);
  background: var(--student-surface-2);
}

.student-mini-progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    var(--student-primary-2),
    var(--student-primary)
  );
}

.student-course-progress small {
  color: var(--student-muted);
  font-weight: 650;
}

.student-next-lesson {
  padding: 12px 14px;
  border-radius: 16px;
  background: var(--student-primary-soft);
  border: 1px solid rgba(32, 128, 160, 0.14);
}

.student-next-lesson span {
  display: block;
  color: var(--student-muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.student-next-lesson strong {
  display: block;
  margin-top: 4px;
  color: var(--student-text);
  font-weight: 850;
}

.student-section-title {
  margin-top: 34px;
}

.student-course-available {
  background:
    linear-gradient(180deg, rgba(72, 160, 176, 0.06), rgba(255, 255, 255, 0)),
    #fff;
}

.student-course-price {
  color: var(--student-primary);
  font-size: 22px;
  font-weight: 950;
  letter-spacing: -0.4px;
}

@media (max-width: 760px) {
  .student-welcome-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .student-summary-grid {
    width: 100%;
  }
}

/* =========================
   STUDENT PROFILE
========================= */

.student-btn-header {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.student-btn-header:hover {
  background: rgba(255, 255, 255, 0.14);
  box-shadow: none;
}

.student-profile-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 32px;
  align-items: start;
}

.student-profile-info {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.student-profile-info div {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--student-border);
  background: var(--student-surface-2);
}

.student-profile-info strong {
  display: block;
  color: var(--student-text);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.student-profile-info span {
  display: block;
  margin-top: 4px;
  color: var(--student-muted);
  font-weight: 650;
}

.student-profile-title {
  margin: 8px 0 18px;
  font-size: 26px;
  letter-spacing: -0.4px;
}

@media (max-width: 860px) {
  .student-profile-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .student-user {
    flex-wrap: wrap;
  }

  .student-user .student-btn {
    flex: 1;
  }
}

/* =========================
   STUDENT PROFILE VERTICAL
========================= */

.student-profile-container {
  max-width: 760px;
}

.student-profile-hero {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 28px;
  margin-bottom: 22px;
  border-radius: 24px;
  border: 1px solid var(--student-border);
  background:
    radial-gradient(
      circle at 10% 0%,
      rgba(72, 160, 176, 0.18),
      transparent 35%
    ),
    linear-gradient(135deg, #ffffff, #f8fbfd);
  box-shadow: var(--student-shadow);
}

.student-avatar {
  width: 82px;
  height: 82px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  background: linear-gradient(
    135deg,
    var(--student-primary-2),
    var(--student-primary)
  );
  color: #fff;
  font-size: 28px;
  font-weight: 950;
  letter-spacing: -1px;
  box-shadow: 0 16px 34px rgba(32, 128, 160, 0.22);
}

.student-profile-hero h1 {
  margin: 4px 0 4px;
  font-size: 32px;
  line-height: 1.05;
  letter-spacing: -0.7px;
}

.student-profile-hero p {
  margin: 0;
  color: var(--student-muted);
  font-weight: 700;
}

.student-profile-card-vertical {
  display: grid;
  gap: 26px;
}

.student-profile-section h2 {
  margin: 0 0 14px;
  font-size: 24px;
  letter-spacing: -0.4px;
}

.student-profile-help {
  margin: -6px 0 18px;
  color: var(--student-muted);
  font-weight: 650;
  line-height: 1.6;
}

.student-profile-info.vertical {
  display: grid;
  gap: 12px;
}

.student-profile-info.vertical div {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--student-border);
  background: var(--student-surface-2);
}

.student-profile-info.vertical strong {
  display: block;
  color: var(--student-text);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.student-profile-info.vertical span {
  display: block;
  margin-top: 5px;
  color: var(--student-muted);
  font-weight: 650;
}

.student-separator {
  width: 100%;
  border: 0;
  border-top: 1px solid var(--student-border);
  margin: 0;
}

@media (max-width: 680px) {
  .student-profile-hero {
    align-items: flex-start;
    flex-direction: column;
  }

  .student-avatar {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    font-size: 24px;
  }
}
.student-alert.success {
  color: #067647;
  background: rgba(6, 118, 71, 0.1);
  border: 1px solid rgba(6, 118, 71, 0.16);
}

.student-alert a {
  color: inherit;
  font-weight: 900;
  text-decoration: underline;
}