/* Start only. Existing notebook, library, and bottom navigation keep their layout. */
body.start-page { background: #eef5ff; }
.start-page .topbar { display: none; }
.start-page .workspace { max-width: 1540px; padding: 16px clamp(18px, 3vw, 48px) 46px; }
.start-page .sidebar .study-language-switch { display: none; }
.start-dashboard { font-family: "Golos Text", "Golos UI", Arial, Helvetica, sans-serif; color: #0b1a3f; min-width: 0; }
.start-dashboard button { font: inherit; cursor: pointer; }
.start-page .sidebar .nav-item .start-nav-label, .start-page .sidebar #exportBtn .start-nav-label { display: block; min-width: 0; width: 100%; text-align: left; font-size: 12px; line-height: 1.1; }
.start-page .sidebar .start-nav-label > span, .start-page .sidebar .start-nav-label > small { display: block; width: auto; text-align: left; }
.start-page .sidebar .start-nav-label > span { font-weight: 700; }
.start-page .sidebar .start-nav-label > small { color: #74829a; font-size: 10px; font-weight: 500; margin-top: 3px; }
.start-primary, .start-ru { display: block; }
.start-ru { color: #6e7f9f; font-size: .46em; font-weight: 500; line-height: 1.35; margin-top: .16em; }
.start-header { min-height: 62px; display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; position: relative; z-index: 2; }
.start-wordmark strong { display: block; color: #173d91; font-size: 18px; letter-spacing: .2em; font-weight: 900; line-height: 1.2; }
.start-wordmark > span { display: block; color: #4969a6; font-size: 8px; letter-spacing: .33em; font-weight: 800; margin-top: 4px; }
.start-language { display: flex; align-items: stretch; gap: 5px; padding: 4px; border-radius: 16px; background: rgba(255,255,255,.72); border: 1px solid #d9e7fb; box-shadow: 0 5px 20px #3666ac13; }
.start-language button { min-width: 92px; padding: 7px 13px; border: 0; border-radius: 12px; background: transparent; color: #334563; font-size: 12px; font-weight: 700; line-height: 1.1; }
.start-language button small { display: block; margin-top: 2px; color: #7d8daa; font-size: 9px; font-weight: 500; }
.start-language button[aria-pressed="true"] { background: #fff; color: #1550b3; box-shadow: 0 3px 11px #255ac12e; }
.start-hero { position: relative; display: flex; align-items: center; min-height: clamp(184px, 19vw, 255px); isolation: isolate; margin-top: 2px; border-radius: 28px; background: radial-gradient(ellipse 53% 90% at 80% 50%,#b1d8ff 0%,#d9edff 47%,transparent 100%), linear-gradient(110deg,#f8fbff 5%,#ecf6ff 62%,#dfedff); overflow: visible; }
.start-hero-copy { position: relative; z-index: 2; max-width: 61%; padding: 20px clamp(20px,3vw,43px); }
.start-hero h2 { font-size: clamp(32px,4.2vw,57px); letter-spacing: -.055em; line-height: 1.05; margin: 0 0 20px; font-weight: 800; }
.start-hero h2 .start-ru { font-size: .38em; letter-spacing: 0; }
.start-hero p { font-size: clamp(17px,1.55vw,23px); font-weight: 700; line-height: 1.25; margin: 0; }
.start-hero p .start-ru { font-size: .64em; }
.start-robot { position: absolute; z-index: 1; right: -1%; bottom: -20%; height: 135%; width: auto; max-width: 52%; object-fit: contain; mix-blend-mode: multiply; -webkit-mask-image: radial-gradient(ellipse 53% 53% at 50% 51%, #000 58%, transparent 96%); mask-image: radial-gradient(ellipse 53% 53% at 50% 51%, #000 58%, transparent 96%); filter: drop-shadow(0 14px 24px #4087d42b); pointer-events: none; }
.start-progress { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(185px,32%) minmax(0,1fr); gap: clamp(15px,2.8vw,37px); min-height: 238px; padding: 14px clamp(18px,2.6vw,35px) 14px 12px; border-radius: 24px; color: #fff; background: radial-gradient(circle at 19% 42%,#1185f5 0%,#0862db 32%,transparent 55%),linear-gradient(115deg,#0478dd,#0344ab 65%,#0759c9); box-shadow: 0 18px 37px #155bba35, inset 0 0 0 1px #65cfff6b; overflow: hidden; }
.start-progress::after { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 78% 100%,#33b9ff48,transparent 53%); pointer-events: none; }
.start-streak { position: relative; z-index: 1; align-self: center; justify-self: center; display: grid; place-items: center; width: min(100%,185px); aspect-ratio: 1; isolation: isolate; border: 1px solid #33beff71; border-radius: 22px; background: radial-gradient(circle at 50% 55%,#0344b5 0%,#0349c7 44%,#0059d8 67%,#0034a2 100%); box-shadow: inset 0 0 24px #16caff69, 0 0 18px #13bfff6c; overflow: hidden; }
.start-streak::before { content: ''; position: absolute; inset: 7%; border: 1px solid #46d2ff24; border-radius: 50%; box-shadow: 0 0 18px #27beff55; }
.start-streak::after { content: ''; position: absolute; inset: 0; border-radius: inherit; background: radial-gradient(circle at 20% 17%,#a2edffad 0 1px,transparent 2px),radial-gradient(circle at 85% 28%,#8ff5ffac 0 1px,transparent 2px),radial-gradient(circle at 19% 77%,#83eaff9c 0 1px,transparent 2px),radial-gradient(circle at 80% 82%,#bdfbffbd 0 1px,transparent 2px); pointer-events: none; }
.start-streak-ring { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; filter: drop-shadow(0 0 7px #48eaff); }
.start-streak-ring circle { fill: none; }
.start-streak-orbit { stroke: #55d7ff3d; stroke-width: 1; }
.start-streak-track { stroke: #1a8ddd88; stroke-width: 13; }
.start-streak-arc { stroke: url(#startStreakGradient); stroke-width: 13; stroke-linecap: round; transform: rotate(-90deg); transform-origin: center; transition: stroke-dasharray 700ms cubic-bezier(.2,.7,.2,1); }
.start-streak-core { position: relative; display: flex; align-items: center; justify-content: center; flex-direction: column; width: 66%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle at 50% 22%,#0d4daa,#071c6b 65%,#071655); box-shadow: inset 0 0 18px #32b9ff66, 0 0 19px #0aa5ff9c; color: white; text-align: center; line-height: 1; }
.start-streak-flame { width: 16%; height: 22%; filter: drop-shadow(0 0 6px #8ddaff); }
.start-streak-core strong { margin-top: 1%; font-size: clamp(28px,3vw,40px); font-weight: 900; line-height: .91; }
.start-streak-core > span { margin-top: 3%; color: #fff; font-size: clamp(9px,.8vw,12px); font-weight: 750; }
.start-streak-core small { margin-top: 3%; color: #eaf4ff; font-size: clamp(7px,.65vw,10px); font-weight: 600; }
.start-progress-main { position: relative; z-index: 1; min-width: 0; align-self: center; padding-left: clamp(15px,2vw,27px); border-left: 1px solid #ffffff40; }
.start-progress-head { display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.start-progress h3 { font-size: clamp(20px,2vw,27px); margin: 0; font-weight: 800; }
.start-progress .start-ru { color: #c5e0ff; font-size: 11px; }
.start-progress-head > span { font-size: 17px; font-weight: 700; white-space: nowrap; }
.start-progress-stat { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 9px; align-items: end; margin-top: 16px; padding: 11px 17px 12px; border: 1px solid #85d8ff79; border-radius: 15px; background: #1785ed4d; }
.start-progress-stat strong { font-size: 15px; line-height: 1.15; font-weight: 700; }
.start-progress-stat strong small { display: block; font-size: 10px; font-weight: 400; color: #cae3ff; margin-top: 3px; }
.start-progress-stat b { font-size: 16px; }
.start-track { height: 9px; grid-column: 1/-1; background: #ffffff3c; border-radius: 99px; overflow: hidden; }
.start-track i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg,#90f3ff,#24d3ff); }
.start-weekdays { display: grid; grid-template-columns: repeat(7,minmax(0,1fr)); gap: 3px; margin-top: 13px; text-align: center; }
.start-weekdays > span { display: grid; justify-items: center; gap: 4px; color: #d8ecff; font-size: 10px; }
.start-weekdays i { display: grid; place-items: center; width: 29px; height: 29px; border: 1px solid #a7d7ff92; border-radius: 50%; font-size: 17px; font-weight: 700; font-style: normal; }
.start-weekdays .is-active i { border-color: #66dbff; color: white; background: linear-gradient(135deg,#15d3ff,#2177ec); box-shadow: 0 4px 9px #044897; }
.start-journey { display: flex; align-items: end; justify-content: space-between; gap: 18px; padding: 22px 0 12px; }
.start-eyebrow .start-primary { font-size: 11px; letter-spacing: .15em; font-weight: 700; color: #3563a3; }
.start-eyebrow .start-ru { font-size: 9px; letter-spacing: .08em; margin-top: 2px; }
.start-journey h2 { margin: 4px 0 0; font-size: clamp(25px,2.5vw,37px); font-weight: 800; letter-spacing: -.04em; line-height: 1.1; }
.start-journey h2 .start-ru { font-size: .38em; letter-spacing: 0; }
.start-journey p { margin: 9px 0 0; font-size: 13px; color: #536781; font-weight: 500; }
.start-journey p .start-ru { font-size: 11px; }
.start-plan { flex: 0 0 auto; display: flex; align-items: center; gap: 18px; padding: 12px 17px; min-height: 50px; border-radius: 18px; border: 1px solid #d2e3fa; background: #fff; box-shadow: 0 6px 18px #5379b51b; color: #14479f; font-weight: 800; font-size: 14px; text-align: left; }
.start-plan .start-ru { font-size: 10px; }
.start-plan > span:last-child { font-size: 21px; }
.start-courses { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 15px; }
.start-course { min-width: 0; height: clamp(235px,21vw,320px); position: relative; overflow: hidden; border: 1px solid #fff; border-radius: 21px; isolation: isolate; box-shadow: 0 13px 24px #254f9d1e, 0 0 0 1px #cbdff2; background: linear-gradient(110deg,#fff,#ddeeff); }
.start-landmark { position: absolute; inset: 0; height: 100%; width: 100%; object-fit: cover; object-position: right 61%; z-index: -2; }
.start-course::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg,#ffffff 0%,#fffffff2 24%,#ffffffa3 46%,#ffffff0d 83%); }
.start-course-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 14px 17px; font-size: 14px; font-weight: 700; }
.start-course-top > span { display: flex; align-items: center; gap: 9px; }
.start-course-top img { width: 37px; height: 37px; object-fit: contain; }
.start-course-top small { padding: 7px 12px; border-radius: 99px; background: #ffffffcf; border: 1px solid #fff; box-shadow: 0 3px 10px #537bb21f; font-size: 12px; white-space: nowrap; }
.start-course-copy { position: absolute; left: 18px; right: 32%; top: 68px; }
.start-course h3 { font-size: clamp(22px,2.3vw,31px); letter-spacing: -.045em; line-height: 1.05; font-weight: 800; margin: 0 0 7px; }
.start-course p { font-size: clamp(11px,1vw,15px); line-height: 1.2; color: #4e6382; font-weight: 500; margin: 0 0 14px; }
.start-course-copy button, .start-premium button { display: inline-flex; gap: 20px; align-items: center; justify-content: space-between; border: 0; border-radius: 99px; color: #fff; background: linear-gradient(95deg,#0642aa,#0969ea); padding: 11px 19px; font-size: 13px; font-weight: 700; white-space: nowrap; box-shadow: 0 7px 15px #084bb74d; }
.start-course-copy button span, .start-premium button span { font-size: 20px; line-height: .6; }
.start-premium { display: flex; align-items: center; gap: 15px; margin-top: 15px; padding: 11px 18px; border: 1px solid #fff; border-radius: 20px; background: linear-gradient(115deg,#e8f5ff,#e4edff 58%,#eadffe); box-shadow: 0 9px 21px #5268b12a; }
.start-premium > img { width: 63px; height: 63px; object-fit: contain; border-radius: 15px; background: #ffffffb9; }
.start-premium > div { min-width: 0; flex: 1; }
.start-premium small { display: block; color: #1460bc; font-size: 10px; letter-spacing: .12em; font-weight: 800; }
.start-premium h3 { margin: 1px 0 2px; font-size: 21px; font-weight: 800; line-height: 1.1; }
.start-premium h3 .start-ru { font-size: 10px; }
.start-premium p { font-size: 12px; line-height: 1.2; color: #526987; margin: 0; }
.start-premium p .start-ru { font-size: 10px; }
.start-history, .start-dashboard .backup-panel { margin-top: 17px; padding: 12px 17px; background: #fff; border: 1px solid #e1eafa; border-radius: 16px; }
.start-history summary, .start-dashboard .backup-panel summary { cursor: pointer; color: #34537f; font-weight: 700; font-size: 13px; }
.start-history .start-ru, .start-dashboard .backup-panel summary .start-ru { font-size: 10px; }
.start-history .dashboard-days { margin-top: 14px; }
.start-dashboard .backup-panel p { color: #61738d; font-size: 12px; }
.start-dashboard button:focus-visible, .start-history summary:focus-visible { outline: 3px solid #32a4ff; outline-offset: 2px; }
@media(max-width:1000px) { .start-page .workspace { padding: 16px 23px 45px; } .start-course-copy { right: 25%; } }
@media(max-width:760px) { .start-page .sidebar .nav-item .start-nav-label { text-align: center; font-size: 9px; } .start-page .sidebar .start-nav-label > span, .start-page .sidebar .start-nav-label > small { text-align: center; } .start-page .sidebar .start-nav-label > small { font-size: 8px; margin-top: 1px; } .start-page .workspace { padding: 12px 13px 26px !important; } .start-header { min-height: 58px; } .start-wordmark strong { font-size: 15px; } .start-language button { min-width: 76px; padding: 7px 8px; } .start-hero { min-height: 230px; } .start-hero-copy { max-width: 70%; padding: 15px; } .start-hero h2 { font-size: clamp(28px,8vw,42px); } .start-robot { max-width: 62%; height: 117%; right: -5%; bottom: -13%; } .start-progress { grid-template-columns: minmax(0,38%) minmax(0,1fr); min-height: 204px; gap: 5px; padding: 11px; }  .start-progress-main { padding-left: 10px; } .start-progress-head > span { font-size: 12px; } .start-progress h3 { font-size: 17px; } .start-progress-stat { margin-top: 9px; padding: 8px; } .start-weekdays i { width: 22px; height: 22px; font-size: 12px; } .start-weekdays > span { font-size: 8px; } .start-journey { align-items: center; } .start-journey h2 { font-size: 25px; } .start-journey p { max-width: 390px; } .start-plan { gap: 5px; padding: 10px; font-size: 11px; } .start-courses { gap: 12px; } .start-course { height: 260px; } .start-course-top { padding: 12px; } .start-course-copy { left: 12px; right: 20%; bottom: 12px; } .start-course h3 { font-size: 22px; } .start-course p { font-size: 11px; } }
@media(max-width:560px) { .start-hero { min-height: 220px; } .start-hero h2 { font-size: 31px; margin-bottom: 14px; } .start-hero p { font-size: 16px; } .start-robot { height: 103%; max-width: 58%; right: -4%; bottom: -2%; } .start-progress { grid-template-columns: minmax(0,34%) minmax(0,1fr); min-height: 177px; }  .start-progress-main { border: 0; padding: 0; } .start-progress-head { gap: 4px; } .start-progress h3 { font-size: 14px; } .start-progress-stat strong { font-size: 10px; } .start-progress-stat b { font-size: 12px; } .start-weekdays { margin-top: 7px; } .start-weekdays i { width: 18px; height: 18px; } .start-journey { flex-wrap: wrap; } .start-plan { margin-left: auto; } .start-courses { grid-template-columns: 1fr; } .start-course { height: 230px; } .start-course-copy { right: 34%; top: 60px; } .start-premium { flex-wrap: wrap; gap: 9px; } .start-premium > img { width: 48px; height: 48px; } .start-premium h3 { font-size: 17px; } .start-premium button { margin-left: auto; } }
@media(max-width:375px) { .start-wordmark strong { font-size: 13px; letter-spacing: .13em; } .start-wordmark > span { font-size: 7px; } .start-language button { min-width: 68px; padding: 6px 5px; font-size: 10px; } .start-hero-copy { max-width: 72%; padding: 12px; } .start-hero h2 { font-size: 27px; } .start-hero p { font-size: 14px; } .start-robot { max-width: 56%; } .start-progress { grid-template-columns: 95px minmax(0,1fr); gap: 4px; padding: 8px; }  .start-progress-stat { padding: 6px; } .start-weekdays { gap: 0; } .start-weekdays i { width: 16px; height: 16px; } }
@media(max-width:560px) { .start-progress-head > span { font-size: 10px; } .start-progress .start-ru { font-size: 9px; } }
@media(max-width:760px) { .start-page .sidebar .start-nav-label > span { overflow-wrap: anywhere; line-height: 1.05; } .start-hero { overflow: hidden; } }
@media(max-width:560px) { .start-premium { display: grid; grid-template-columns: 48px minmax(0,1fr); align-items: start; } .start-premium > img { grid-column: 1; } .start-premium > div { grid-column: 2; } .start-premium button { grid-column: 1/-1; justify-self: end; } }
@media(max-width:760px) { .start-streak { width: min(100%,155px); } .start-streak-core strong { font-size: clamp(21px,4vw,32px); } .start-streak-core > span { font-size: 8px; } .start-streak-core small { font-size: 7px; } }
@media(max-width:375px) { .start-streak { width: min(100%,106px); border-radius: 15px; } .start-streak-ring { filter: drop-shadow(0 0 4px #48eaff); } .start-streak-core strong { font-size: 21px; } .start-streak-core > span { font-size: 7px; } .start-streak-core small { font-size: 6px; } }
@media(prefers-reduced-motion:reduce) { .start-streak-arc { transition: none; } }