:root { --blue: #0870ef; --navy: #071a43; --text: #273d5e; --muted: #718098; --line: #dfe7f1; --soft: #f3f7fc; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--soft); font-family: Inter, sans-serif; }
a { color: inherit; text-decoration: none; }
.aula-body { min-height: 100vh; }
.aula-topbar { position: sticky; top: 0; z-index: 10; display: flex; min-height: 74px; padding: 0 max(24px, calc((100% - 1180px) / 2)); align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.94); backdrop-filter: blur(15px); }
.aula-brand { display: flex; gap: 10px; align-items: center; }
.aula-brand img { width: 43px; height: 43px; object-fit: contain; }
.aula-brand span { display: grid; }
.aula-brand strong { color: var(--navy); font-size: .95rem; }
.aula-brand small { color: var(--muted); font-size: .62rem; }
.aula-account { display: flex; gap: 10px; align-items: center; }
.aula-account > span { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 11px; color: #fff; background: linear-gradient(135deg, #0875f8, #1044ac); font-weight: 900; }
.aula-account > div { display: grid; gap: 2px; }
.aula-account strong { color: var(--navy); font-size: .72rem; }
.aula-account small { color: var(--muted); font-size: .58rem; }
.aula-account > a { margin-left: 8px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; color: #50617a; font-size: .65rem; font-weight: 800; }
.aula-main { width: min(1180px, calc(100% - 48px)); min-height: calc(100vh - 130px); margin: 0 auto; padding: 42px 0 65px; }
.aula-footer { display: flex; min-height: 58px; padding: 0 max(24px, calc((100% - 1180px) / 2)); align-items: center; justify-content: space-between; border-top: 1px solid var(--line); color: #7d899b; background: #fff; font-size: .65rem; }
.aula-footer a { color: var(--blue); font-weight: 800; }
.aula-eyebrow { margin: 0; color: var(--blue) !important; font-size: .66rem !important; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; }
.aula-login-shell { display: grid; grid-template-columns: minmax(360px, 520px) 1fr; min-height: calc(100vh - 240px); overflow: hidden; border: 1px solid var(--line); border-radius: 27px; background: #fff; box-shadow: 0 25px 70px rgba(31, 66, 120, .1); }
.aula-login-card { display: flex; padding: 55px 62px; flex-direction: column; justify-content: center; }
.aula-login-mark { display: grid; place-items: center; width: 58px; height: 58px; margin-bottom: 22px; border-radius: 17px; background: #eaf3ff; }
.aula-login-mark img { width: 46px; height: 46px; object-fit: contain; }
.aula-login-card h1 { margin: 9px 0; color: var(--navy); font-size: 2.25rem; line-height: 1.07; letter-spacing: -.045em; }
.aula-login-card > p:not(.aula-eyebrow) { margin: 0 0 26px; color: var(--muted); font-size: .78rem; line-height: 1.6; }
.aula-login-card form { display: grid; gap: 15px; }
.aula-login-card label { display: grid; gap: 7px; color: #354863; font-size: .68rem; font-weight: 800; }
.aula-login-card input { height: 46px; padding: 0 13px; border: 1px solid #cfdae7; border-radius: 10px; color: var(--navy); font: inherit; outline: 0; }
.aula-login-card input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(8,112,239,.1); }
.aula-login-card button { height: 48px; margin-top: 3px; border: 0; border-radius: 10px; color: #fff; background: linear-gradient(135deg, #0876f7, #0754cf); font: inherit; font-size: .75rem; font-weight: 900; cursor: pointer; box-shadow: 0 10px 24px rgba(8,101,224,.25); }
.aula-login-card > small { margin-top: 20px; color: #8a96a8; font-size: .62rem; line-height: 1.55; }
.aula-back { margin-top: 16px; color: var(--blue); font-size: .68rem; font-weight: 800; }
.aula-login-aside { display: flex; padding: 65px; flex-direction: column; justify-content: end; color: #fff; background: radial-gradient(circle at 70% 20%, rgba(0,164,255,.6), transparent 30%), linear-gradient(145deg, #062251, #0870ef); }
.aula-login-aside > span { font-size: .67rem; font-weight: 900; letter-spacing: .1em; }
.aula-login-aside h2 { max-width: 520px; margin: 15px 0 25px; font-size: clamp(2rem, 4vw, 4rem); line-height: 1.02; letter-spacing: -.05em; }
.aula-login-aside ul { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.aula-login-aside li { color: rgba(255,255,255,.78); font-size: .78rem; }
.aula-login-aside li::before { content: "✓"; margin-right: 8px; color: #72d6ff; font-weight: 900; }
.aula-alert { margin: 0 0 18px; padding: 11px 13px; border-radius: 9px; color: #176540; background: #ebfaf3; font-size: .7rem; }
.aula-alert.error { color: #a32d2d; background: #fff0f0; }
.aula-dashboard-head { display: flex; align-items: end; justify-content: space-between; gap: 25px; margin-bottom: 30px; }
.aula-dashboard-head h1 { margin: 8px 0; color: var(--navy); font-size: clamp(2.1rem, 4vw, 3.5rem); letter-spacing: -.05em; }
.aula-dashboard-head p:not(.aula-eyebrow) { margin: 0; color: var(--muted); font-size: .82rem; }
.aula-dashboard-head > a { padding: 10px 14px; border: 1px solid #cfdbea; border-radius: 9px; color: var(--blue); background: #fff; font-size: .68rem; font-weight: 850; }
.aula-pending { display: grid; grid-template-columns: 42px 1fr minmax(200px, 350px); gap: 14px; align-items: center; margin-bottom: 32px; padding: 17px 19px; border: 1px solid #ffe0a9; border-radius: 14px; background: #fff9ed; }
.aula-pending > span { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; color: #9b6106; background: #ffe7b9; font-weight: 900; }
.aula-pending div { display: grid; gap: 4px; }
.aula-pending b { color: #694714; font-size: .78rem; }
.aula-pending small { color: #9a7540; font-size: .63rem; }
.aula-pending p { margin: 0; color: #8b6b3c; font-size: .67rem; line-height: 1.5; }
.aula-section-title { display: flex; align-items: end; justify-content: space-between; margin-bottom: 17px; }
.aula-section-title h2 { margin: 6px 0 0; color: var(--navy); font-size: 1.5rem; letter-spacing: -.03em; }
.aula-section-title > span { color: var(--muted); font-size: .67rem; }
.aula-course-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.aula-course-card { display: grid; grid-template-columns: 210px 1fr; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 12px 35px rgba(32, 64, 110, .05); }
.aula-course-cover { position: relative; display: grid; min-height: 250px; place-items: center; overflow: hidden; background: linear-gradient(135deg, #062253, #0873f5); }
.aula-course-cover img { width: 100%; height: 100%; object-fit: cover; }
.aula-course-cover > span { position: absolute; left: 12px; bottom: 12px; padding: 6px 8px; border-radius: 7px; color: #fff; background: rgba(6,30,72,.8); font-size: .58rem; font-weight: 850; }
.aula-course-card > div { display: flex; padding: 22px; flex-direction: column; }
.aula-course-card > div > small { color: var(--blue); font-size: .61rem; font-weight: 850; }
.aula-course-card h3 { margin: 8px 0; color: var(--navy); font-size: 1.08rem; line-height: 1.2; }
.aula-course-card p { margin: 0; color: var(--muted); font-size: .7rem; line-height: 1.5; }
.aula-progress { margin-top: auto; padding-top: 20px; }
.aula-progress > span { display: block; height: 6px; overflow: hidden; border-radius: 99px; background: #e6edf6; }
.aula-progress i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #0877f7, #28a4f5); }
.aula-progress small { display: block; margin-top: 6px; color: #8995a7; font-size: .58rem; }
.aula-primary-link { margin-top: 14px; padding: 10px 12px; border-radius: 8px; color: #fff; background: var(--blue); text-align: center; font-size: .67rem; font-weight: 900; }
.aula-empty { display: grid; max-width: 720px; margin: 65px auto; justify-items: center; padding: 55px; border: 1px solid var(--line); border-radius: 22px; background: #fff; text-align: center; }
.aula-empty > span { display: grid; place-items: center; width: 55px; height: 55px; border-radius: 16px; color: var(--blue); background: #eaf3ff; font-size: 1.3rem; font-weight: 900; }
.aula-empty h1, .aula-empty h2 { margin: 18px 0 9px; color: var(--navy); }
.aula-empty p { max-width: 540px; margin: 0; color: var(--muted); font-size: .76rem; line-height: 1.65; }
.aula-empty a { margin-top: 21px; padding: 11px 15px; border-radius: 9px; color: #fff; background: var(--blue); font-size: .68rem; font-weight: 900; }
.aula-breadcrumb { display: flex; gap: 8px; align-items: center; margin-bottom: 30px; color: #7b899c; font-size: .65rem; }
.aula-breadcrumb a { color: var(--blue); }
.aula-course-head { display: flex; gap: 35px; align-items: end; justify-content: space-between; margin-bottom: 34px; }
.aula-course-head h1 { margin: 8px 0 10px; color: var(--navy); font-size: clamp(2.1rem, 4vw, 3.7rem); letter-spacing: -.05em; line-height: 1.03; }
.aula-course-head > div > p:not(.aula-eyebrow) { max-width: 700px; margin: 0; color: var(--muted); font-size: .8rem; line-height: 1.6; }
.aula-course-head aside { display: flex; gap: 10px; }
.aula-course-head aside > span { display: grid; min-width: 100px; gap: 4px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.aula-course-head aside b { color: var(--navy); font-size: 1.1rem; }
.aula-course-head aside small { color: var(--muted); font-size: .58rem; }
.aula-learning-layout { display: grid; grid-template-columns: 275px 1fr; gap: 25px; align-items: start; }
.aula-module-nav { position: sticky; top: 98px; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.aula-module-nav > p { margin: 0; padding: 17px; border-bottom: 1px solid var(--line); color: #8290a4; font-size: .62rem; font-weight: 900; letter-spacing: .07em; text-transform: uppercase; }
.aula-module-nav a { display: flex; gap: 11px; padding: 14px 16px; border-bottom: 1px solid #edf1f6; }
.aula-module-nav a:last-child { border-bottom: 0; }
.aula-module-nav a > span { display: grid; flex: 0 0 31px; place-items: center; height: 31px; border-radius: 9px; color: var(--blue); background: #eaf3ff; font-size: .61rem; font-weight: 900; }
.aula-module-nav a div { display: grid; gap: 3px; }
.aula-module-nav b { color: var(--navy); font-size: .69rem; line-height: 1.3; }
.aula-module-nav small { color: var(--muted); font-size: .57rem; }
.aula-modules { display: grid; gap: 20px; }
.aula-module { scroll-margin-top: 95px; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.aula-module > header { display: flex; gap: 15px; padding: 23px; border-bottom: 1px solid var(--line); }
.aula-module > header > span { display: grid; flex: 0 0 44px; place-items: center; height: 44px; border-radius: 13px; color: #fff; background: linear-gradient(135deg, #0875f8, #0c49bb); font-size: .75rem; font-weight: 900; }
.aula-module > header div { display: grid; gap: 4px; }
.aula-module > header small { color: var(--blue); font-size: .58rem; font-weight: 850; text-transform: uppercase; }
.aula-module > header h2 { margin: 0; color: var(--navy); font-size: 1.1rem; }
.aula-module > header p { margin: 0; color: var(--muted); font-size: .68rem; }
.aula-lessons details { border-bottom: 1px solid #edf1f6; }
.aula-lessons details:last-child { border-bottom: 0; }
.aula-lessons summary { display: grid; grid-template-columns: 35px 1fr 25px; gap: 12px; align-items: center; padding: 15px 21px; cursor: pointer; list-style: none; }
.aula-lessons summary::-webkit-details-marker { display: none; }
.aula-lessons summary > span { display: grid; place-items: center; width: 33px; height: 33px; border-radius: 9px; color: var(--blue); background: #edf5ff; font-size: .65rem; }
.aula-lessons summary div { display: grid; gap: 3px; }
.aula-lessons summary b { color: #1b3358; font-size: .74rem; }
.aula-lessons summary small { color: var(--muted); font-size: .58rem; }
.aula-lessons summary i { color: var(--blue); font-size: 1rem; font-style: normal; font-weight: 900; }
.aula-lessons details[open] summary i { transform: rotate(45deg); }
.aula-lesson-content { padding: 5px 68px 24px; color: #50617a; font-size: .74rem; line-height: 1.7; }
.aula-lesson-content h2, .aula-lesson-content h3 { color: var(--navy); }
.aula-resource { display: inline-flex; margin-bottom: 13px; padding: 9px 12px; border-radius: 8px; color: #fff; background: var(--blue); font-size: .65rem; font-weight: 850; }
.aula-module-empty { margin: 0; padding: 22px; color: var(--muted); font-size: .7rem; }
.aula-course-wait { margin-top: 25px; }
@media (max-width: 900px) {
  .aula-login-shell, .aula-learning-layout { grid-template-columns: 1fr; }
  .aula-login-aside { min-height: 360px; }
  .aula-course-grid { grid-template-columns: 1fr; }
  .aula-module-nav { position: static; }
  .aula-course-head { align-items: start; flex-direction: column; }
}
@media (max-width: 650px) {
  .aula-topbar { padding: 0 16px; }
  .aula-account > div { display: none; }
  .aula-main { width: calc(100% - 28px); padding-top: 26px; }
  .aula-login-card { padding: 36px 24px; }
  .aula-login-aside { display: none; }
  .aula-dashboard-head { align-items: start; flex-direction: column; }
  .aula-pending { grid-template-columns: 40px 1fr; }
  .aula-pending p { grid-column: 2; }
  .aula-course-card { grid-template-columns: 1fr; }
  .aula-course-cover { min-height: 180px; }
  .aula-course-head aside { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); }
  .aula-course-head aside > span { min-width: 0; }
  .aula-lesson-content { padding: 5px 20px 22px; }
  .aula-empty { padding: 38px 22px; }
}
.aula-course-actions { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: end; margin-top: 14px; }
.aula-course-actions .aula-primary-link { margin-top: 0; }
.aula-certificate-link { padding: 10px 11px; border: 1px solid #b9d2f2; border-radius: 8px; color: var(--blue); background: #f2f8ff; text-align: center; font-size: .63rem; font-weight: 900; }
.aula-certificate-banner { display: grid; grid-template-columns: 48px 1fr auto; gap: 14px; align-items: center; margin: -8px 0 28px; padding: 17px 20px; border: 1px solid #badccf; border-radius: 15px; background: linear-gradient(135deg, #f1fbf6, #f5faff); }
.aula-certificate-banner > span { display: grid; place-items: center; width: 45px; height: 45px; border-radius: 13px; color: #fff; background: #0a9360; font-size: 1.2rem; font-weight: 900; }
.aula-certificate-banner > div { display: grid; gap: 4px; }
.aula-certificate-banner b { color: var(--navy); font-size: .8rem; }
.aula-certificate-banner small { color: var(--muted); font-size: .61rem; }
.aula-certificate-banner > a { padding: 10px 13px; border-radius: 9px; color: #fff; background: #0870ef; font-size: .65rem; font-weight: 900; }
@media (max-width: 650px) {
  .aula-course-actions { grid-template-columns: 1fr; }
  .aula-certificate-banner { grid-template-columns: 42px 1fr; }
  .aula-certificate-banner > a { grid-column: 1 / -1; text-align: center; }
}