.interview-practice-page{background:var(--bg);color:var(--ink)}
.interview-practice-page main{overflow:clip}
.ip-hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,.65fr);gap:32px;align-items:end;padding-top:58px;padding-bottom:42px}
.ip-hero-copy h1{margin:10px 0 18px;font-size:clamp(54px,7vw,104px);line-height:.9;letter-spacing:-.065em;max-width:950px}
.ip-hero-copy h1 span{color:var(--blue)}
.ip-hero-copy>p{max-width:780px;font-size:clamp(19px,2vw,27px);line-height:1.35;color:color-mix(in srgb,var(--ink) 76%,transparent)}
.ip-hero-actions,.ip-answer-actions,.ip-results-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.ip-primary,.ip-secondary,.ip-run-button,.ip-check-button,.ip-text-button{appearance:none;border:0;font:inherit;cursor:pointer;text-decoration:none}
.ip-primary,.ip-check-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 18px;border-radius:12px;background:var(--ink);color:var(--bg);font-weight:800}
.ip-primary:hover,.ip-check-button:hover{transform:translateY(-1px)}
.ip-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 18px;border:1px solid var(--line);border-radius:12px;background:var(--surface);font-weight:750}
.ip-text-button{background:transparent;color:inherit;font-weight:750;padding:8px 4px;text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--ink) 22%,transparent);text-underline-offset:4px}
.ip-run-button{min-height:48px;padding:12px 18px;border-radius:12px;background:var(--acid);color:#111;font-weight:900}
.ip-readiness-card{border:1px solid var(--line);border-radius:24px;background:var(--surface);padding:22px;display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:center;box-shadow:0 16px 50px color-mix(in srgb,var(--ink) 6%,transparent)}
.ip-score-ring{--score:0;width:118px;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--blue) calc(var(--score)*1%),color-mix(in srgb,var(--ink) 10%,transparent) 0);position:relative}
.ip-score-ring:before{content:"";position:absolute;inset:10px;border-radius:50%;background:var(--surface)}
.ip-score-ring>div{position:relative;z-index:1;text-align:center}.ip-score-ring strong{font-size:37px;line-height:1}.ip-score-ring span{display:block;font:11px 'DM Mono',monospace;color:color-mix(in srgb,var(--ink) 60%,transparent);margin-top:3px}
.ip-readiness-copy>span,.ip-readiness-stats dt,.ip-results-grid span,.ip-learning-grid span,.ip-follow-up span{font:10px 'DM Mono',monospace;text-transform:uppercase;letter-spacing:.06em;color:color-mix(in srgb,var(--ink) 54%,transparent)}
.ip-readiness-copy strong{display:block;font-size:22px;margin:5px 0}.ip-readiness-copy p{font-size:14px;line-height:1.45;color:color-mix(in srgb,var(--ink) 64%,transparent)}
.ip-readiness-stats{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:0}.ip-readiness-stats div{border-top:1px solid var(--line);padding-top:12px}.ip-readiness-stats dt{margin-bottom:4px}.ip-readiness-stats dd{margin:0;font-weight:800;font-size:15px;overflow-wrap:anywhere}
.ip-mode-section{padding-top:38px;padding-bottom:70px}.ip-section-heading{display:grid;grid-template-columns:54px 1fr;gap:18px;align-items:start;margin-bottom:24px}.ip-section-heading>span{font:13px 'DM Mono',monospace;color:var(--blue);padding-top:6px}.ip-section-heading h2{font-size:clamp(34px,4.6vw,66px);line-height:1;letter-spacing:-.045em;max-width:900px}.ip-section-heading p{margin-top:10px;max-width:750px;color:color-mix(in srgb,var(--ink) 66%,transparent);font-size:17px}
.ip-mode-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.ip-mode-card{appearance:none;text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:20px;min-height:220px;cursor:pointer;color:inherit;display:flex;flex-direction:column;align-items:flex-start;transition:transform .18s ease,border-color .18s ease,background .18s ease}.ip-mode-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--ink) 42%,var(--line))}.ip-mode-card.is-featured{background:color-mix(in srgb,var(--acid) 16%,var(--surface));border-color:color-mix(in srgb,var(--acid) 55%,var(--line))}.ip-mode-no{font:11px 'DM Mono',monospace;color:var(--blue)}.ip-mode-card strong{font-size:25px;margin-top:22px}.ip-mode-card p{margin-top:9px;font-size:14px;line-height:1.5;color:color-mix(in srgb,var(--ink) 66%,transparent)}.ip-mode-card b{margin-top:auto;padding-top:16px;font-size:13px}
.ip-arena-section{border-top:1px solid var(--line);background:color-mix(in srgb,var(--surface) 55%,var(--bg));padding:22px 0 70px;scroll-margin-top:90px}.ip-session-bar{display:grid;grid-template-columns:auto minmax(120px,1fr) auto;gap:18px;align-items:center;margin-bottom:14px}.ip-session-bar>div:first-child{display:flex;gap:10px;align-items:center}.ip-session-bar strong{font:12px 'DM Mono',monospace}.ip-progress-track{height:5px;background:color-mix(in srgb,var(--ink) 10%,transparent);border-radius:999px;overflow:hidden}.ip-progress-track span{display:block;width:0;height:100%;background:var(--blue);border-radius:inherit;transition:width .2s ease}
.ip-mobile-tabs{display:none}
.ip-workspace{display:grid;grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr);gap:12px;align-items:start}.ip-panel{border:1px solid var(--line);border-radius:18px;background:var(--surface);padding:20px;min-width:0}.ip-problem-panel{grid-column:1}.ip-data-panel{grid-column:1}.ip-answer-panel{grid-column:2;grid-row:1/3}.ip-result-panel,.ip-why-panel{grid-column:1/-1}
.ip-question-meta{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:15px}.ip-question-meta span{font:10px 'DM Mono',monospace;text-transform:uppercase;letter-spacing:.04em;padding:6px 8px;border:1px solid var(--line);border-radius:999px}.ip-question-meta span:first-child{background:color-mix(in srgb,var(--acid) 18%,var(--surface))}.ip-problem-panel h2{font-size:clamp(25px,2.5vw,36px);line-height:1.08;letter-spacing:-.025em}.ip-question-copy{font-size:17px;line-height:1.55;margin-top:10px;color:color-mix(in srgb,var(--ink) 78%,transparent)}
.ip-debug-code,.ip-solution pre{margin-top:16px;padding:16px;border-radius:13px;background:#121716;color:#edf6f2;overflow:auto;font:13px/1.6 'DM Mono',monospace;white-space:pre}.ip-hint-box{border-top:1px solid var(--line);margin-top:18px;padding-top:12px}.ip-hint-trigger{appearance:none;border:0;background:none;padding:4px 0;color:inherit;cursor:pointer;font-weight:800}.ip-hint-trigger span{color:var(--blue);margin-left:5px}.ip-hint-box p{margin-top:8px;padding:11px 12px;border-radius:10px;background:color-mix(in srgb,var(--blue) 8%,var(--surface));font-size:14px;line-height:1.45}
.ip-panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:14px}.ip-panel-head.compact{margin-bottom:9px}.ip-panel-head h3{font-size:21px;margin-top:3px}.ip-table-count,.ip-panel-head.compact>span{font:11px 'DM Mono',monospace;color:color-mix(in srgb,var(--ink) 52%,transparent);white-space:nowrap}
.ip-table-wrap{max-width:100%;overflow:auto;border:1px solid var(--line);border-radius:12px;background:var(--bg);-webkit-overflow-scrolling:touch;position:relative}.ip-table-wrap:after{content:"";position:sticky;right:0;display:block;width:12px;height:1px;float:right}.ip-table{border-collapse:collapse;width:100%;min-width:max-content;font-size:13px}.ip-table th,.ip-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}.ip-table th{position:sticky;top:0;background:color-mix(in srgb,var(--surface) 92%,var(--bg));font:10px 'DM Mono',monospace;text-transform:uppercase;letter-spacing:.04em}.ip-table tr:last-child td{border-bottom:0}.ip-context-card{border:1px dashed var(--line);border-radius:12px;padding:16px}.ip-context-card strong{font-size:16px}.ip-context-card p{font-size:14px;line-height:1.45;margin-top:5px;color:color-mix(in srgb,var(--ink) 65%,transparent)}
.ip-sql-editor{width:100%;min-height:330px;resize:vertical;border:1px solid #24302d;border-radius:14px;background:#111715;color:#eff8f4;padding:17px;font:14px/1.65 'DM Mono',monospace;tab-size:2;outline:none}.ip-sql-editor:focus{border-color:var(--blue);box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 16%,transparent)}.ip-choice-list{border:0;padding:0;margin:0;display:grid;gap:9px}.ip-choice-option{display:grid;grid-template-columns:auto 1fr;gap:11px;align-items:start;padding:14px;border:1px solid var(--line);border-radius:12px;cursor:pointer;background:var(--bg)}.ip-choice-option:hover{border-color:color-mix(in srgb,var(--blue) 45%,var(--line))}.ip-choice-option:has(input:checked){border-color:var(--blue);background:color-mix(in srgb,var(--blue) 7%,var(--bg))}.ip-choice-option input{margin-top:3px;width:18px;height:18px}.ip-choice-option span{font-size:15px;line-height:1.4}.ip-feedback{min-height:24px;margin-top:12px;font-size:14px;font-weight:750}.ip-feedback.is-error{color:#a62d2d}.ip-feedback.is-success{color:#1d6c42}
.ip-result-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.ip-result-wrap{min-height:130px}.ip-empty-result{padding:20px;font-size:14px;color:color-mix(in srgb,var(--ink) 54%,transparent)}.ip-result-status{margin-top:12px;border-radius:11px;padding:12px 14px;background:color-mix(in srgb,var(--ink) 5%,var(--surface));font-size:14px}.ip-result-status.is-success{background:color-mix(in srgb,#35a66b 12%,var(--surface));border:1px solid color-mix(in srgb,#35a66b 35%,var(--line))}.ip-result-status.is-error{background:color-mix(in srgb,#d45454 10%,var(--surface));border:1px solid color-mix(in srgb,#d45454 28%,var(--line))}
.ip-explanation-locked{padding:24px;border:1px dashed var(--line);border-radius:13px}.ip-explanation-locked span{font:10px 'DM Mono',monospace;text-transform:uppercase;color:var(--blue)}.ip-explanation-locked strong{display:block;font-size:22px;margin:5px 0}.ip-explanation-locked p{max-width:680px;font-size:14px;line-height:1.5;color:color-mix(in srgb,var(--ink) 63%,transparent)}.ip-explanation-status{display:inline-flex;padding:6px 9px;border-radius:999px;font:10px 'DM Mono',monospace;text-transform:uppercase;background:color-mix(in srgb,var(--acid) 22%,var(--surface));margin-bottom:10px}.ip-why-panel h3{font-size:clamp(26px,3vw,40px);max-width:900px;line-height:1.08}.ip-explanation-steps{margin:18px 0 0;padding-left:24px;display:grid;gap:8px;max-width:900px}.ip-explanation-steps li{font-size:15px;line-height:1.5}.ip-learning-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}.ip-learning-grid article,.ip-follow-up{border:1px solid var(--line);border-radius:13px;padding:15px}.ip-learning-grid article:first-child{background:color-mix(in srgb,#ffcf66 10%,var(--surface))}.ip-learning-grid article:last-child{background:color-mix(in srgb,var(--blue) 7%,var(--surface))}.ip-learning-grid p,.ip-follow-up p{font-size:14px;line-height:1.5;margin-top:5px}.ip-follow-up{margin-top:10px;background:color-mix(in srgb,var(--acid) 10%,var(--surface))}.ip-solution{margin-top:12px;border:1px solid var(--line);border-radius:12px;overflow:hidden}.ip-solution summary{padding:13px 15px;cursor:pointer;font-weight:800}.ip-solution pre{margin:0;border-radius:0}.ip-course-link{display:inline-flex;margin-top:15px;font-weight:850;color:var(--blue);text-decoration:underline;text-underline-offset:4px}
.ip-question-nav{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px}.ip-question-nav button:disabled{opacity:.38;cursor:not-allowed;transform:none}
.ip-results-section{padding-top:70px;padding-bottom:76px;scroll-margin-top:90px}.ip-results-hero{display:flex;align-items:end;justify-content:space-between;gap:22px;border-bottom:1px solid var(--line);padding-bottom:28px}.ip-results-hero h2{font-size:clamp(78px,11vw,156px);letter-spacing:-.07em;line-height:.78}.ip-results-hero h2 small{font-size:.2em;letter-spacing:0;color:color-mix(in srgb,var(--ink) 50%,transparent)}.ip-results-hero p{font-size:20px;margin-top:14px}.ip-results-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:18px}.ip-results-grid article{border:1px solid var(--line);border-radius:14px;padding:16px;background:var(--surface)}.ip-results-grid strong{display:block;font-size:20px;margin-top:7px;overflow-wrap:anywhere}.ip-results-layout{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}.ip-skill-breakdown,.ip-missed-list{border:1px solid var(--line);border-radius:16px;padding:18px;background:var(--surface)}.ip-skill-row{display:grid;grid-template-columns:minmax(120px,1fr) 2fr 46px;gap:10px;align-items:center;padding:8px 0;border-top:1px solid var(--line)}.ip-skill-row:first-child{border-top:0}.ip-skill-row>span:first-child{font-size:13px;font-weight:750}.ip-skill-bar{height:7px;border-radius:999px;background:color-mix(in srgb,var(--ink) 9%,transparent);overflow:hidden}.ip-skill-bar i{display:block;height:100%;background:var(--blue);border-radius:inherit}.ip-skill-row b{text-align:right;font:11px 'DM Mono',monospace}.ip-missed-item{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;padding:12px 0;border-top:1px solid var(--line)}.ip-missed-item:first-child{border-top:0}.ip-missed-item strong{font-size:14px}.ip-missed-item span{display:block;margin-top:3px;font:10px 'DM Mono',monospace;color:color-mix(in srgb,var(--ink) 52%,transparent)}.ip-review-button{appearance:none;border:1px solid var(--line);background:var(--bg);border-radius:10px;padding:9px 11px;cursor:pointer;font-weight:800}
.ip-philosophy{padding-top:28px;padding-bottom:88px}.ip-philosophy-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.ip-philosophy-grid article{border-top:1px solid var(--line);padding:16px 6px 0 0}.ip-philosophy-grid article>span{font:11px 'DM Mono',monospace;color:var(--blue)}.ip-philosophy-grid h3{font-size:22px;margin-top:14px}.ip-philosophy-grid p{font-size:14px;line-height:1.5;margin-top:7px;color:color-mix(in srgb,var(--ink) 66%,transparent)}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
[hidden]{display:none!important}
button:focus-visible,a:focus-visible,textarea:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid color-mix(in srgb,var(--blue) 55%,transparent);outline-offset:3px}
@media(max-width:1050px){.ip-hero{grid-template-columns:1fr}.ip-readiness-card{grid-template-columns:auto minmax(0,1fr);max-width:720px}.ip-mode-grid{grid-template-columns:repeat(2,1fr)}.ip-workspace{grid-template-columns:1fr}.ip-problem-panel,.ip-data-panel,.ip-answer-panel,.ip-result-panel,.ip-why-panel{grid-column:1;grid-row:auto}.ip-sql-editor{min-height:260px}.ip-results-layout{grid-template-columns:1fr}.ip-philosophy-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.ip-hero{padding-top:34px;padding-bottom:26px;gap:22px}.ip-hero-copy h1{font-size:clamp(46px,15vw,72px)}.ip-hero-copy>p{font-size:18px}.ip-readiness-card{padding:16px;border-radius:18px}.ip-score-ring{width:96px}.ip-score-ring strong{font-size:30px}.ip-mode-section{padding-top:30px;padding-bottom:46px}.ip-section-heading{grid-template-columns:34px 1fr;gap:10px}.ip-section-heading h2{font-size:36px}.ip-mode-grid{grid-template-columns:1fr}.ip-mode-card{min-height:150px;padding:17px}.ip-mode-card strong{margin-top:13px}.ip-arena-section{padding-top:12px;padding-bottom:44px}.ip-session-bar{grid-template-columns:1fr auto;gap:9px}.ip-session-bar .ip-progress-track{grid-column:1/-1;grid-row:2}.ip-mobile-tabs{position:sticky;top:68px;z-index:30;display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line);border-radius:12px;background:color-mix(in srgb,var(--bg) 95%,transparent);backdrop-filter:blur(14px);overflow:hidden;margin-bottom:10px}.ip-mobile-tabs button{appearance:none;border:0;border-right:1px solid var(--line);background:transparent;min-height:45px;padding:5px 2px;font-size:11px;font-weight:800;color:inherit}.ip-mobile-tabs button:last-child{border-right:0}.ip-mobile-tabs button[aria-selected="true"]{background:var(--ink);color:var(--bg)}.ip-workspace{display:block}.ip-panel{padding:16px;border-radius:14px}.ip-panel[data-mobile-panel]{display:none}.ip-panel[data-mobile-panel].is-mobile-active{display:block}.ip-problem-panel h2{font-size:27px}.ip-question-copy{font-size:16px}.ip-sql-editor{min-height:300px;font-size:13px;padding:14px}.ip-answer-actions{position:sticky;bottom:8px;z-index:12;margin-top:12px;padding:8px;border:1px solid var(--line);border-radius:13px;background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(12px)}.ip-answer-actions button{flex:1}.ip-result-grid{grid-template-columns:1fr}.ip-learning-grid{grid-template-columns:1fr}.ip-question-nav{position:sticky;bottom:0;z-index:20;background:linear-gradient(to top,var(--bg) 78%,transparent);padding:14px 0 8px}.ip-question-nav .ip-primary,.ip-question-nav .ip-secondary{min-height:48px;padding:10px 13px}.ip-results-section{padding-top:48px;padding-bottom:48px}.ip-results-hero{align-items:flex-start;flex-direction:column}.ip-results-actions{margin-top:4px}.ip-results-grid{grid-template-columns:repeat(2,1fr)}.ip-philosophy{padding-bottom:56px}.ip-philosophy-grid{grid-template-columns:1fr 1fr}.ip-table th,.ip-table td{padding:9px 10px}.ip-table-wrap{box-shadow:inset -10px 0 12px -14px color-mix(in srgb,var(--ink) 80%,transparent)}}
@media(max-width:420px){.ip-readiness-card{grid-template-columns:84px 1fr;gap:12px}.ip-score-ring{width:84px}.ip-readiness-copy strong{font-size:19px}.ip-readiness-stats{grid-template-columns:1fr 1fr}.ip-readiness-stats div:last-child{grid-column:1/-1}.ip-mobile-tabs button{font-size:10px}.ip-results-grid{grid-template-columns:1fr 1fr}.ip-philosophy-grid{grid-template-columns:1fr}.ip-question-nav{gap:6px}.ip-question-nav button{font-size:13px}.ip-skill-row{grid-template-columns:1fr 44px}.ip-skill-bar{grid-column:1/-1;grid-row:2}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}