:root {
    --bg: #eef1f6be;
    --surface: #f5f7fb;
    --surface-strong: #ffffff;
    --ink: #0f1725;
    --ink-muted: #99a6ba;
    --accent: #19202a;
    --shadow-soft: 0 20px 60px rgba(15, 23, 37, 0.08);
    --shadow-card: 0 10px 30px rgba(15, 23, 37, 0.08);
    --radius-lg: 20px;
    --radius-md: 14px;
    --space-xs: 8px;
    --space-sm: 12px;
    --space-md: 20px;
    --space-lg: 32px;
    --space-xl: 56px;
    --ease-smooth: cubic-bezier(0.22, 0.61, 0.36, 1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", "Segoe UI", Arial, sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at 10% 10%, rgba(255, 255, 255, 0.7), transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(214, 224, 255, 0.38), transparent 50%),
        var(--bg);
    display: grid;
    place-items: center;
    padding: var(--space-lg);
}

.page {
    width: min(1080px, 100%);
    position: relative;
    transition: opacity 0.22s var(--ease-smooth);
}

.panel {
    background: linear-gradient(180deg, var(--surface-strong), var(--surface));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(255, 255, 255, 0.8);
    padding: var(--space-md) var(--space-lg) var(--space-xl);
    transition: opacity 0.26s var(--ease-smooth), transform 0.26s var(--ease-smooth), visibility 0.26s var(--ease-smooth);
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 40px;
    margin-bottom: var(--space-xl);
}

.brand {
    font-weight: 600;
    letter-spacing: 0.2px;
    color: #1b2332;
}

.profile-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.88rem;
    color: #2b3446;
    text-decoration: none;
}

.avatar-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid #ced6e4;
    background: linear-gradient(160deg, #ffffff, #f0f3f8);
    box-shadow: inset 0 -2px 8px rgba(15, 23, 37, 0.06);
}
button{
    cursor: pointer;
}
.hero {
    text-align: center;
}

.hero h1 {
    margin: 0 0 var(--space-sm);
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.hero > p {
    margin: 0 0 var(--space-xl);
    color: var(--ink-muted);
}

.grid-area {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-md);
    align-items: start;
    margin-bottom: var(--space-xl);
}

.tracks {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
}
.selected {
    border: 2px solid #87de8a !important;
    background-color: #e8f5e9 !important;
    transform: scale(1.05) !important;
    transition: 0.2s ease !important;
}
.track-card {
    min-width: 108px;
    height: 86px;
    border-radius: var(--radius-md);
    background: var(--surface-strong);
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(225, 232, 245, 0.8);
    display: grid;
    place-items: center;
    gap: 4px;
    cursor: pointer;
    color: #263043;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.track-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 34px rgba(15, 23, 37, 0.12);
}

.track-card {
    border-color: #8ea4cc;
    background: linear-gradient(160deg, #ffffff, #edf2fa);
    box-shadow: 3px 3px 5px rgba(202, 192, 192, 0.2), 
    -3px -3px 5px rgba(234, 218, 218, 0.5);
    transform: translateY(5px);
}

.icon {
    color: #64748b;
    font-size: 1.05rem;
}

.stats-card {
    margin: 0px 333px;
    background: var(--surface-strong);
    border-radius: var(--radius-md);
    border: 1px solid rgba(225, 232, 245, 0.8);
    box-shadow: var(--shadow-card);
    padding: var(--space-md);
    text-align: left;
}

.stats-card h3 {
    margin: 0 0 var(--space-sm);
    font-size: 1rem;
}

.stats-card ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.stats-card li {
    display: flex;
    justify-content: space-between;
    color: #516079;
    font-size: 0.84rem;
    margin-bottom: 4px;
}

.stats-card b {
    color: #1d2739;
}

.start-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 176px;
    padding: 12px 20px;
    border-radius: 10px;
    background: linear-gradient(160deg, #232d3c, #151b24);
    color: #f3f7ff;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.84rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 14px 25px rgba(15, 23, 37, 0.2);
    transition: transform 0.2s ease, box-shadow 0.25s ease;
}

.start-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 28px rgba(15, 23, 37, 0.22);
}

.interview-panel {
    padding: 18px 16px 32px;
    border-radius: 9px;
    background-color: var(--ink-muted);
        
}

.is-hidden {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: grid;
    place-items: center;
    padding: var(--space-md);
    background: rgba(15, 23, 37, 0.45);
    backdrop-filter: blur(4px);
    transition: opacity 0.22s var(--ease-smooth), backdrop-filter 0.22s var(--ease-smooth);
}

.confirm-dialog {
    width: min(100%, 400px);
    padding: var(--space-lg) var(--space-md);
    background: var(--surface-strong);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(225, 232, 245, 0.95);
    box-shadow: var(--shadow-soft), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
    text-align: center;
    transition: transform 0.22s var(--ease-smooth), opacity 0.22s var(--ease-smooth);
}

.confirm-dialog__text {
    margin: 0 0 var(--space-lg);
    font-size: 1.05rem;
    line-height: 1.45;
    color: var(--ink);
    font-weight: 500;
}

.confirm-dialog__actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.confirm-btn {
    min-width: 100px;
    padding: 11px 22px;
    border-radius: 999px;
    font: inherit;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 0.8rem;
    transition: transform 0.2s ease, box-shadow 0.25s ease;
}

.confirm-btn--primary {
    border: 0;
    color: #f4f8ff;
    background: linear-gradient(90deg, #031022, #0b1d36);
    box-shadow: 0 8px 16px rgba(5, 11, 22, 0.28);
}

.confirm-btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 20px rgba(5, 11, 22, 0.32);
}

.confirm-btn--secondary {
    border: 1px solid #d0d7e2;
    color: #212a38;
    background: linear-gradient(180deg, #ffffff, #edf1f7);
}

.confirm-btn--secondary:hover {
    transform: translateY(-1px);
    border-color: #b8c4d4;
}

.interview-top-nav {
    max-width: 1020px;
    margin-top: 0 auto 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.interview-brand-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #f7fbff;
    margin-bottom: 20px;
}

.interview-logo {
    width: 28px;
    height: 28px;
    border-radius: 7px;
    display: grid;
    place-items: center;
    font-size: 0.74rem;
    font-weight: 700;
    background: rgba(227, 166, 166, 0.847);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.interview-brand {
    font-weight: 600;
    letter-spacing: 0.01em;
}

.profile-icon-btn {
    width: 30px;
    height: 30px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.7);
    background: linear-gradient(180deg, #ffffff, #edf2f7);
    box-shadow: 0 7px 16px rgba(0, 0, 0, 0.28);
    cursor: pointer;
}

.interview-card {
    margin: 0 15px;
    background: #f9fbfd;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.95);
    box-shadow: 0 26px 55px rgba(0, 0, 0, 0.35);
    padding: 20px 30px 22px;
    transition: box-shadow 0.22s var(--ease-smooth), transform 0.22s var(--ease-smooth);
}

.question-meta {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 0.67rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #d9ecff;
    background: linear-gradient(180deg, #1f4f81, #163e66);
}

.question-title {
    margin: 14px 0 16px;
    font-size: clamp(1.2rem, 1vw, 1.2rem);
    line-height: 1.22;
    letter-spacing: -0.01em;
    color: #070c12;
}

.progress-track {
    width: 100%;
    height: 10px;
    background: #d7dde5;
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 18px;
}

.progress-value {
    display: block;
    width: 20%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #bdc5cf, #aeb9c7);
    transition: width 0.28s var(--ease-smooth);
}

.answer-block label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.86rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #202b3a;
}

.answer-block textarea {
    width: 100%;
    min-height: 112px;
    resize: vertical;
    border: 1px solid #ccd6e0;
    border-radius: 11px;
    background: #f5f8fc;
    box-shadow: inset 0 1px 2px rgba(8, 18, 34, 0.07);
    padding: 13px 14px;
    font: inherit;
    color: #1a2433;
    outline: none;
    transition: border-color 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth), background-color 0.2s var(--ease-smooth);
}

.answer-block textarea:focus {
    border-color: #a9b9cf;
    background: #fbfdff;
    box-shadow: inset 0 1px 2px rgba(8, 18, 34, 0.06), 0 0 0 3px rgba(150, 170, 198, 0.14);
}

.submit-answer-btn {
    width: 100%;
    margin-top: 14px;
    padding: 11px 14px;
    border: 0;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 700;
    color: #f3f8ff;
    background: linear-gradient(90deg, #040e1b, #091a35, #050d1b);
    box-shadow: 0 10px 20px rgba(6, 13, 24, 0.25);
    transition: transform 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth), opacity 0.2s var(--ease-smooth);
}

.submit-answer-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 12px 22px rgba(6, 13, 24, 0.3);
}

.submit-answer-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.skip-question-btn {
    width: 100%;
    margin-top: 10px;
    padding: 10px 14px;
    border: 1px solid #c5ced9;
    border-radius: 999px;
    font: inherit;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.78rem;
    font-weight: 700;
    color: #3d4a5c;
    background: linear-gradient(180deg, #ffffff, #eef2f8);
    box-shadow: 0 4px 12px rgba(6, 13, 24, 0.08);
    transition: transform 0.2s var(--ease-smooth), border-color 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth), opacity 0.2s var(--ease-smooth);
}

.skip-question-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    border-color: #a8b6c8;
    box-shadow: 0 6px 16px rgba(6, 13, 24, 0.12);
}

.skip-question-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.feedback-grid {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.feedback-card {
    border-radius: 12px;
    padding: 13px;
    border: 1px solid rgba(180, 191, 206, 0.3);
    box-shadow: 0 12px 26px rgba(7, 13, 24, 0.11);
    transition: transform 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth), opacity 0.2s var(--ease-smooth);
}

.feedback-card h3 {
    margin: 0 0 8px;
    font-size: 1rem;
}

.feedback-card ul {
    margin: 0;
    padding-left: 16px;
}

.feedback-card li,
.feedback-card p {
    margin: 0 0 6px;
    font-size: 0.9rem;
    line-height: 1.32;
    color: #293343;
}

.good-card {
    background: linear-gradient(160deg, #effaf2, #dff2e5);
}

.missing-card {
    background: linear-gradient(160deg, #fff8e7, #f6ebcf);
}

.ideal-card {
    background: linear-gradient(160deg, #f9fbff, #edf2f9);
}

.interview-actions {
    margin-top: 16px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

.next-btn,
.retry-btn, .stats-btn {
    border-radius: 999px;
    padding: 9px 18px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.02em;
    transition: transform 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth), border-color 0.2s var(--ease-smooth), opacity 0.2s var(--ease-smooth);
}

.next-btn, .stats-btn {
    margin-top : 5px;
    border: 0;
    color: #f4f8ff;
    background: linear-gradient(90deg, #031022, #0b1d36);
    box-shadow: 0 8px 16px rgba(5, 11, 22, 0.28);
}

.next-btn:hover:not(:disabled),
.stats-btn:hover:not(:disabled),
.retry-btn:hover:not(:disabled) {
    transform: translateY(-1px);
}

.retry-btn {
    border: 1px solid #d0d7e2;
    color: #212a38;
    background: linear-gradient(180deg, #ffffff, #edf1f7);
}

label.stats-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-top: 14px;
    width: 100%;
    box-sizing: border-box;
}

.stats-session-page {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 600;
    overflow-y: auto;
    padding: var(--space-md) var(--space-lg) var(--space-xl);
    background:
        radial-gradient(circle at 12% 0%, rgba(255, 255, 255, 0.75), transparent 42%),
        radial-gradient(circle at 88% 100%, rgba(214, 224, 255, 0.45), transparent 48%),
        #e8ecf4;
    border: none;
    margin: 0;
    transition: opacity 0.24s var(--ease-smooth), transform 0.24s var(--ease-smooth);
}

.panel:not(.is-hidden),
.interview-panel:not(.is-hidden),
.stats-session-page:not(.is-hidden),
.overlay:not(.is-hidden),
#feedback:not(.is-hidden),
#offlineAns:not(.is-hidden),
#submitting:not(.is-hidden) {
    animation: smoothReveal 0.24s var(--ease-smooth);
}

.overlay:not(.is-hidden) .confirm-dialog {
    animation: popupReveal 0.22s var(--ease-smooth);
}

@keyframes smoothReveal {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes popupReveal {
    from {
        opacity: 0;
        transform: translateY(6px) scale(0.99);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.stats-session-inner {
    width: min(920px, 100%);
    margin: 0 auto;
}

.stats-page-header {
    margin-bottom: var(--space-lg);
}

.stats-back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: var(--space-md);
    font-size: 0.88rem;
    font-weight: 600;
    color: #2a3a52;
    cursor: pointer;
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid #c9d4e4;
    background: linear-gradient(180deg, #ffffff, #eef2f8);
    box-shadow: 0 4px 12px rgba(15, 23, 37, 0.08);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.stats-back-link:hover {
    transform: translateY(-1px);
    border-color: #a8b6c8;
}

.stats-page-title {
    margin: 0 0 var(--space-xs);
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    letter-spacing: -0.02em;
    color: var(--ink);
}

.stats-page-lead {
    margin: 0;
    max-width: 52ch;
    color: #4a5568;
    line-height: 1.5;
    font-size: 0.95rem;
}

.stats-summary-board {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.stat-metric {
    background: var(--surface-strong);
    border-radius: var(--radius-md);
    border: 1px solid rgba(225, 232, 245, 0.95);
    box-shadow: var(--shadow-card);
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-metric--hero {
    grid-column: span 1;
    background: linear-gradient(160deg, #f9fbff, #e8eef9);
    border-color: rgba(31, 79, 129, 0.2);
}

.stat-metric__label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #5c6b82;
}

.stat-metric__value {
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #0f1725;
    line-height: 1.1;
}

.stat-metric__value--text {
    font-size: 1.25rem;
}

.stat-metric__hint {
    font-size: 0.78rem;
    color: #6b7c92;
    line-height: 1.35;
}

.stats-progress-wrap {
    height: 8px;
    border-radius: 999px;
    background: #d7dde5;
    overflow: hidden;
    margin-bottom: var(--space-lg);
}

.stats-progress-bar {
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #1f4f81, #3d6fa3);
}

.stats-section-heading {
    margin: 0 0 var(--space-xs);
    font-size: 1.15rem;
    color: var(--ink);
}

.stats-section-note {
    margin: 0 0 var(--space-md);
    font-size: 0.86rem;
    color: #5c6b82;
    
    line-height: 1.45;
}

.stats-question-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.stats-q-card {
    background: var(--surface-strong);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(225, 232, 245, 0.95);
    box-shadow: var(--shadow-soft);
    padding: var(--space-md) var(--space-lg);
}

.stats-q-head {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid #e4e9f2;
}

.stats-q-badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #d9ecff;
    background: linear-gradient(180deg, #1f4f81, #163e66);
    padding: 5px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
}

.stats-q-title {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.35;
    color: #0f1725;
    font-weight: 600;
}

.stats-q-block {
    margin-bottom: var(--space-md);
}

.stats-q-block-title {
    margin: 0 0 8px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #3d4a5c;
}

.stats-q-answer {
    margin: 0;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    background: #f5f8fc;
    border: 1px solid #dce3ed;
    font-size: 0.92rem;
    line-height: 1.45;
    color: #293343;
}

.stats-q-feedback {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
}

.stats-feedback-col {
    border-radius: 12px;
    padding: 12px 14px;
    border: 1px solid rgba(180, 191, 206, 0.35);
    min-height: 0;
}

.stats-feedback-col--good {
    background: linear-gradient(160deg, #effaf2, #dff2e5);
}

.stats-feedback-col--missing {
    background: linear-gradient(160deg, #fff8e7, #f6ebcf);
}

.stats-feedback-col--ideal {
    background: linear-gradient(160deg, #f9fbff, #edf2f9);
}

.stats-feedback-heading {
    margin: 0 0 8px;
    font-size: 0.88rem;
    font-weight: 700;
    color: #1a2433;
}

.stats-feedback-col ul {
    margin: 0;
    padding-left: 18px;
    font-size: 0.88rem;
    line-height: 1.4;
    color: #293343;
}

.stats-feedback-col li {
    margin-bottom: 6px;
}

.stats-feedback-col li:last-child {
    margin-bottom: 0;
}

.stats-feedback-col p {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.4;
    color: #293343;
}

@media (max-width: 940px) {
    body {
        padding: var(--space-md);
    }

    .panel {
        padding: var(--space-md);
    }

    .topbar {
        margin-bottom: var(--space-lg);
    }

    .grid-area {
        grid-template-columns: 1fr;
    }

    .stats-card {
        width: min(100%, 360px);
        margin: 0 auto;
    }

    .tracks {
        gap: 10px;
    }

    .track-card {
        min-width: 95px;
    }

    .feedback-grid {
        grid-template-columns: 1fr;
    }

    .interview-card {
        padding: 18px 14px;
    }

    .question-title {
        font-size: 1.45rem;
    }

    .stats-summary-board {
        grid-template-columns: 1fr;
    }

    .stats-q-feedback {
        grid-template-columns: 1fr;
    }

    .stats-q-card {
        padding: var(--space-md);
    }

    .stats-session-page {
        padding: var(--space-sm) var(--space-md) var(--space-lg);
    }
}