/* Student accounts extend MathLab's original dark theme. */
.ma-social{display:grid;gap:10px;margin:18px 0 8px}
.ma-social-button{display:flex;align-items:center;justify-content:center;gap:12px;min-height:48px;width:100%;border:1px solid var(--line);border-radius:10px;background:var(--surface-raised,#1d2e4a);color:var(--ink);font:600 16px/1.3 "DM Sans",sans-serif;cursor:pointer}
.ma-social-button svg{width:18px!important;height:18px!important;flex:0 0 18px;display:block}
.ma-social-button:hover{border-color:var(--green)}
.ma-social-button:disabled{opacity:.55;cursor:default}
.ma-social-status{font-size:13px;min-height:0}
.ma-social-status:empty{display:none}
.ma-auth-divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;margin:18px 0}
.ma-auth-divider:before,.ma-auth-divider:after{content:"";flex:1;height:1px;background:var(--line)}
.ml-account-nav{display:flex;align-items:center;flex:none}
.ml-account-link{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:8px 13px;background:transparent;color:var(--ink);font:600 14px/1.3 "DM Sans",sans-serif;text-decoration:none;white-space:nowrap}
.ml-account-link:hover{border-color:var(--green)}
.ml-mini-avatar{display:inline-flex;width:24px;height:24px;color:var(--green)}
.ml-mini-avatar svg{width:100%;height:100%}
.ml-account-backdrop{position:fixed;inset:0;z-index:500;background:#061122d9;display:grid;place-items:center;padding:16px}
.ml-account-dialog{width:min(100%,620px);max-height:calc(100dvh - 28px);overflow:auto;background:linear-gradient(145deg,#162840,#101c31 58%,#0d192c);color:var(--ink);border:1px solid #4ce5d04d;border-radius:18px;padding:22px 24px;box-shadow:0 22px 70px #0008}
.ml-account-dialog.is-signup{width:min(100%,620px);padding:22px 24px}
.ml-account-dialog.is-signup .ml-account-top{padding-bottom:10px;border-bottom:1px solid var(--line)}
.ml-account-dialog.is-signup .ml-account-top h2{font-size:clamp(24px,4vw,29px)}
.ml-account-dialog.is-signup .ml-role-picker{margin:17px 0!important}
.ml-account-dialog.is-signup .ml-role-option{min-height:142px}
.ml-account-dialog.is-signup .ml-role-option-body{gap:7px;padding:14px 10px}
.ml-account-dialog.is-signup .ml-role-art{width:56px;height:56px;border-radius:16px}
.ml-account-dialog.is-signup .ml-role-art svg{width:43px;height:43px}
.ml-account-dialog.is-signup .ml-role-copy b{font-size:16px}
.ml-account-dialog.is-signup .ml-role-copy small{font-size:13px;line-height:1.35!important;margin-top:4px!important}
.ma-auth-intro{max-width:620px;font-size:16px}
.ml-account-top{display:flex;align-items:start;justify-content:space-between;gap:12px}
.ml-account-top h2{margin:0 0 5px;font:700 25px/1.2 "Space Grotesk",sans-serif}
.ml-account-close{background:transparent;border:1px solid var(--line);padding:2px 10px;color:var(--ink);font-size:24px;line-height:1.3;min-height:36px}
.ml-account-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:4px;margin:15px 0;border:1px solid var(--line);border-radius:12px}
.ml-account-tabs button{background:transparent;color:var(--muted);padding:10px;border-radius:8px;font-size:16px}
.ml-account-tabs button[aria-selected=true]{background:var(--green);color:#082332}
.ml-account-dialog p,.ma-root p{color:var(--muted);line-height:1.6;margin:8px 0}
.ml-account-dialog label,.ma-root form>label{display:block;font-size:16px;font-weight:600;margin:16px 0 6px}
.ml-account-dialog input,.ma-root input:not([type=checkbox]):not([type=radio]){box-sizing:border-box;width:100%;padding:12px 13px;background:var(--surface-raised,#1d2e4a);color:var(--ink);border:1px solid #6f85a0;border-radius:9px;font:inherit;min-width:0;min-height:48px}
.ma-root input[readonly]{color:var(--muted)}
.ma-root{max-width:1120px;margin:0 auto;min-width:0;font-size:16px}
.ma-root *{box-sizing:border-box}
.ma-root a{color:var(--green)}
.ma-root h1,.ma-root h2,.ma-root h3{font-family:"Space Grotesk","DM Sans",sans-serif;color:var(--ink);line-height:1.25}
.ma-root h1{font-size:clamp(26px,4vw,36px);margin:7px 0}
.ma-root h2{font-size:24px;margin:0 0 14px}
.ma-root h3{font-size:19px;margin:10px 0}
.ma-panel{padding:26px;margin:0 0 20px;background:var(--surface,#16233a);border:1px solid var(--line);border-radius:18px;min-width:0}
.ma-profile-head{display:grid;grid-template-columns:80px minmax(0,1fr) auto;gap:20px;align-items:center;border-top:3px solid var(--green)}
.ma-avatar{width:80px;height:80px;display:grid;place-items:center;background:#4ce5d016;border:1px solid #4ce5d052;border-radius:22px;color:var(--green)}
.ma-avatar svg{width:64px;height:64px}
.ma-eyebrow{font-weight:700;font-size:14px;letter-spacing:.1em;color:var(--green)}
.ma-stats{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;padding-top:18px;border-top:1px solid var(--line)}
.ma-stats strong{font:700 clamp(23px,4vw,32px)/1.25 "Space Grotesk",sans-serif;display:block;color:var(--lime)}
.ma-stats span{display:block;font-size:14px;color:var(--muted);margin-top:3px}
.ma-section-head,.ma-continue{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.ma-section-head{margin-bottom:16px}.ma-section-head h1,.ma-section-head h2{margin:0}
.ma-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:11px 17px;border:1px solid var(--green);border-radius:10px;background:var(--green);color:#082332!important;font:600 16px/1.3 "DM Sans",sans-serif;text-decoration:none;cursor:pointer}
.ma-button.secondary{background:transparent;color:var(--ink)!important;border-color:var(--line)}
.ma-button:disabled{opacity:.6;cursor:wait}
.ma-full{width:100%;margin-top:18px}
.ma-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:14px}
.ma-text{border:0;padding:8px 0;background:none;color:var(--green);font:600 15px/1.4 "DM Sans",sans-serif;text-decoration:underline;cursor:pointer}
.ma-message{font-size:15px;min-height:1.5em;color:var(--lime)!important;overflow-wrap:anywhere}
.ma-note{font-size:14px!important;color:var(--muted)}
.ma-root :is(button,a,input,summary):focus-visible,.ml-account-dialog :is(button,a,input):focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.ma-course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.ma-course{padding:20px;background:var(--surface-raised,#1d2e4a);border:1px solid var(--line);border-radius:13px;min-width:0}
.ma-course>a{text-decoration:none}.ma-course>a h3{color:var(--green)}
.ma-root progress{display:block;width:100%;height:9px;appearance:none;border:0;border-radius:99px;overflow:hidden;margin:12px 0;background:#ffffff12}
.ma-root progress::-webkit-progress-bar{background:#ffffff12;border-radius:99px}
.ma-root progress::-webkit-progress-value{background:linear-gradient(90deg,var(--green),var(--lime));border-radius:99px}
.ma-root progress::-moz-progress-bar{background:var(--green);border-radius:99px}
.ma-root summary{color:var(--ink);cursor:pointer;line-height:1.6;font-size:16px}
.ma-chapter{border-top:1px solid var(--line);margin-top:12px;padding-top:12px}
.ma-topic{border-top:1px solid var(--line);margin-top:12px;padding-top:12px;font-size:15px}
.ma-topic a{display:block;line-height:1.5}.ma-topic span{display:block;color:var(--muted);font-size:14px;line-height:1.6;margin-top:3px}
.ma-trend{margin:18px 0 24px}.ma-trend figcaption{font-weight:600;margin-bottom:14px;color:var(--ink)}.ma-trend svg{width:100%;height:auto;display:block}
.ma-domains{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:22px}
.ma-domains>div{border:1px solid var(--line);padding:16px;border-radius:12px}
.ma-domains span{color:var(--muted);font-size:14px}
.ma-skills,.ma-activity{padding:0;list-style:none;margin:14px 0 0}
.ma-skills li,.ma-activity li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--line);line-height:1.5}
.ma-skills span,.ma-activity time{flex:none;color:var(--muted);font-size:14px}
.ma-table-wrap{width:100%;overflow:auto;margin-top:24px;overscroll-behavior-x:contain}
.ma-table{width:100%;border-collapse:collapse;text-align:left;font-size:15px;line-height:1.5}
.ma-table th,.ma-table td{padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.ma-table th{color:var(--muted);font-size:14px;font-weight:600}
.ma-table caption{text-align:left;margin-bottom:10px;color:var(--muted);font-size:14px}
.ma-table td:not(:nth-child(2)){white-space:nowrap}
.ma-root fieldset{padding:0;border:0;margin:26px 0}
.ma-root legend{font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:19px;margin-bottom:14px}
.ma-avatar-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(82px,1fr));gap:10px}
.ma-avatar-choice{display:flex;flex-direction:column;align-items:center;gap:5px;cursor:pointer;position:relative;font-size:14px;color:var(--muted)}
.ma-avatar-choice input{position:absolute;opacity:0}
.ma-avatar-choice>span{width:72px;height:72px;display:grid;place-items:center;border:2px solid var(--line);background:var(--surface-raised,#1d2e4a);border-radius:16px;color:var(--green)}
.ma-avatar-choice svg{width:48px;height:48px}
.ma-avatar-choice input:checked+span{border-color:var(--lime);background:#e7ff7210;color:var(--lime)}
.ma-avatar-choice input:focus-visible+span{outline:3px solid var(--lime);outline-offset:3px}
.ma-favourites{display:flex;flex-wrap:wrap;gap:10px}
.ma-favourites label{display:flex;align-items:center;gap:9px;border:1px solid var(--line);padding:12px;border-radius:9px;font-size:16px;cursor:pointer}
.ma-favourites input{accent-color:var(--green);width:18px;height:18px}
.ma-favourite-tag{position:absolute;right:18px;bottom:14px;font-size:14px;font-weight:600;color:var(--lime)}
@media(max-width:760px){.ml-account-link{font-size:14px;padding:7px 10px}.ml-account-backdrop{padding:10px}.ml-account-dialog,.ml-account-dialog.is-signup,.ma-panel{padding:18px}.ml-account-dialog{max-height:calc(100dvh - 20px)}.ml-account-dialog.is-signup .ml-role-options{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.ml-account-dialog.is-signup .ml-role-option{min-height:120px}.ml-account-dialog.is-signup .ml-role-option-body{flex-direction:column;text-align:center;padding:11px 6px}.ml-account-dialog.is-signup .ml-role-art{width:48px;height:48px}.ml-account-dialog.is-signup .ml-role-art svg{width:37px;height:37px}.ma-profile-head{grid-template-columns:64px minmax(0,1fr);gap:14px}.ma-avatar{width:64px;height:64px}.ma-avatar svg{width:50px;height:50px}.ma-profile-head>.ma-button{grid-column:1/-1;justify-self:start}.ma-course-grid,.ma-domains{grid-template-columns:1fr}.ma-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.ma-activity li{flex-direction:column;gap:4px}.ma-skills li{flex-wrap:wrap}.ma-table{min-width:630px}.ma-trend{margin-left:-8px;margin-right:-8px}.ma-avatar-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:480px){.ml-account-dialog,.ml-account-dialog.is-signup{padding:15px;border-radius:15px}.ml-account-top h2,.ml-account-dialog.is-signup .ml-account-top h2{font-size:22px}.ml-account-tabs{margin:11px 0}.ma-auth-intro{font-size:14px;line-height:1.45!important}.ml-account-dialog.is-signup .ml-role-picker{margin:12px 0!important}.ml-account-dialog.is-signup .ml-role-picker legend{font-size:15px;margin-bottom:8px}.ml-account-dialog.is-signup .ml-role-option{min-height:93px}.ml-account-dialog.is-signup .ml-role-option-body{gap:5px;padding:9px 4px}.ml-account-dialog.is-signup .ml-role-art{width:42px;height:42px}.ml-account-dialog.is-signup .ml-role-art svg{width:32px;height:32px}.ml-account-dialog.is-signup .ml-role-copy small{display:none}.ml-account-dialog label{font-size:14px;margin-top:10px}.ml-account-dialog input{min-height:44px;padding:9px 11px}.ml-account-dialog .ma-full{margin-top:12px}}
@media print{.ml-account-nav,.ml-account-backdrop{display:none!important}}
.ml-account-dialog label.ma-email-tips{display:flex;align-items:flex-start;gap:9px;text-align:left;font-size:14px;font-weight:400;line-height:1.5;cursor:pointer}
.ml-account-dialog .ma-email-tips input[type=checkbox]{appearance:auto;box-sizing:border-box;flex:0 0 18px;width:18px;height:18px;min-width:18px;min-height:18px;max-width:18px;max-height:18px;border-radius:3px;margin:2px 0 0;padding:0;accent-color:var(--green,#4ce5d0);cursor:pointer}

/* Signed-in account menu. */
.ml-account-nav{position:relative;max-width:100%}
.ml-account-link .ml-account-name{min-width:0;overflow:hidden;text-overflow:ellipsis;max-width:180px}
.ml-account-menu{position:absolute;z-index:510;top:calc(100% + 8px);right:0;width:230px;max-width:calc(100vw - 16px);padding:6px;background:#13203a;border:1px solid #2a4060;border-radius:12px;box-shadow:0 14px 35px #0007;color:var(--ink)}
.ml-account-menu[hidden]{display:none}
.ml-account-menu [role=menuitem]{display:block;width:100%;box-sizing:border-box;border:0;border-radius:7px;background:transparent;padding:8px 10px;color:inherit;font:500 14px/1.4 "DM Sans",sans-serif;text-align:left;text-decoration:none;white-space:normal;cursor:pointer}
.ml-account-menu [role=menuitem]:hover,.ml-account-menu [role=menuitem]:focus-visible{background:#1b2c4a}
.ml-account-menu [data-menu-signout]{color:#ff8a8a}
.ml-add-name{display:inline-block;font-size:14px;color:var(--green);margin:0 0 6px}
.ml-account-notice{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:600;max-width:calc(100vw - 32px);padding:10px 16px;background:#13203a;border:1px solid #2a4060;border-radius:12px;box-shadow:0 8px 24px #0007;color:var(--ink);font-size:14px}
@media(max-width:560px){.ml-account-link .ml-account-name{max-width:115px}.ml-account-menu{width:220px}}

.ma-save-warning{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);z-index:2100;box-sizing:border-box;width:max-content;max-width:calc(100vw - 32px);padding:10px 14px;border:1px solid #e7ff7270;border-radius:12px;background:#13203a;color:#eef5ff;font:14px/1.5 "DM Sans",sans-serif;box-shadow:0 8px 24px #0006}.ma-save-warning button{margin-left:8px;padding:6px 10px;border:1px solid #4ce5d0;border-radius:7px;background:transparent;color:#4ce5d0;cursor:pointer}

.ml-account-dialog input::placeholder,.ma-root input::placeholder{color:var(--muted);opacity:1}