:root {
    --ink: #102033;
    --muted: #60748a;
    --accent: #2b6fdb;
    --accent-deep: #184c9f;
    --panel: rgba(252, 254, 255, 0.9);
    --line: rgba(16, 32, 51, 0.1);
    --shadow: 0 28px 80px rgba(29, 67, 122, 0.14);
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

body {
    margin: 0;
    font-family: "Noto Sans KR", sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(43, 111, 219, 0.18), transparent 26%),
        radial-gradient(circle at top right, rgba(85, 158, 214, 0.16), transparent 22%),
        linear-gradient(180deg, #f5f9ff 0%, #eaf1fb 100%);
}

.user-landing-body,
.user-login-body,
.user-home-body {
    min-height: 100vh;
}

.landing-shell {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 24px 0 64px;
}

.landing-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-mark,
.login-back-link {
    color: var(--ink);
    text-decoration: none;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.05em;
}

.topbar-link {
    height: 46px;
    padding: 0 18px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(252, 254, 255, 0.5);
    color: var(--ink);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.hero-panel {
    display: block;
    padding: 56px 0 24px;
}

.hero-panel-centered {
    text-align: center;
}

.hero-panel-centered .hero-copy {
    width: min(100%, 860px);
    margin: 0 auto;
}

.hero-kicker {
    display: inline-flex;
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent-deep);
    letter-spacing: 0.14em;
}

.hero-copy h1,
.user-login-head h1 {
    margin: 12px 0 16px;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(1.9rem, 3.6vw, 3rem);
    line-height: 1.08;
    letter-spacing: -0.07em;
}

.hero-copy p,
.user-login-head p {
    margin: 0;
    color: var(--muted);
    line-height: 1.8;
    font-size: 1.08rem;
}

.hero-copy p {
    width: min(100%, 720px);
    margin: 0 auto;
}

.hero-copy code {
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(16, 32, 51, 0.06);
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.92em;
}

.topbar-link:hover {
    transform: translateY(-1px);
}

.showcase-stage {
    margin-top: 36px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
    align-items: stretch;
}

.showcase-column {
    position: relative;
    min-height: 260px;
    padding: 1px;
    border-radius: 30px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.7) 0%, rgba(43, 111, 219, 0.1) 100%);
}

.showcase-column-inner {
    height: 100%;
    padding: 28px;
    border-radius: 29px;
    background:
        radial-gradient(circle at top right, rgba(43, 111, 219, 0.12), transparent 30%),
        rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
}

.showcase-label,
.feature-index {
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent-deep);
}

.showcase-column h2 {
    margin: 14px 0 10px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.8rem;
    letter-spacing: -0.04em;
}

.showcase-column p {
    margin: 0;
    color: var(--muted);
    line-height: 1.8;
    font-size: 1rem;
}

.closing-copy {
    width: min(100%, 760px);
    margin: 40px auto 0;
    text-align: center;
}

.landing-stats-panel {
    margin-top: 42px;
    padding: 34px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 32px;
    background:
        radial-gradient(circle at top left, rgba(43, 111, 219, 0.12), transparent 28%),
        rgba(255, 255, 255, 0.76);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
}

.landing-stats-copy h2 {
    margin: 12px 0 10px;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    letter-spacing: -0.05em;
}

.landing-stats-copy p,
.landing-stats-status {
    margin: 0;
    color: var(--muted);
    line-height: 1.8;
}

.landing-stats-grid {
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.landing-stat-card {
    padding: 24px 20px;
    border: 1px solid rgba(16, 32, 51, 0.08);
    border-radius: 24px;
    background: rgba(252, 254, 255, 0.9);
}

.landing-stat-label {
    display: block;
    color: var(--muted);
    font-size: 0.95rem;
}

.landing-stat-value {
    display: block;
    margin-top: 14px;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(1.7rem, 3vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.06em;
}

.landing-stats-status {
    margin-top: 18px;
    font-size: 0.95rem;
}

.landing-stats-status.is-warning {
    color: #a34a4a;
}

.closing-copy p {
    margin: 14px 0 0;
    color: var(--muted);
    line-height: 1.9;
    font-size: 1.05rem;
}

.user-login-shell {
    width: min(100%, 520px);
    margin: 0 auto;
    padding: 42px 20px;
}

.login-shell-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.login-home-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 14px;
    border: 1px solid rgba(16, 32, 51, 0.1);
    border-radius: 999px;
    background: rgba(252, 254, 255, 0.5);
    color: var(--ink);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 700;
}

.login-home-link:hover {
    border-color: rgba(43, 111, 219, 0.24);
    background: rgba(237, 244, 255, 0.96);
}

.user-login-panel {
    margin-top: 18px;
    padding: 32px 28px 28px;
    border: 1px solid var(--line);
    border-radius: 30px;
    background: var(--panel);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(9, 21, 39, 0.42);
    backdrop-filter: blur(8px);
    z-index: 20;
}

.user-modal-card {
    width: min(100%, 620px);
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    padding: 26px 24px 24px;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: rgba(252, 254, 255, 0.96);
    box-shadow: var(--shadow);
}

.modal-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.modal-head h2 {
    margin: 10px 0 8px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 2rem;
    letter-spacing: -0.05em;
}

.modal-head p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.modal-close {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(16, 32, 51, 0.1);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.84);
    color: var(--ink);
    font: inherit;
    font-size: 1.1rem;
    cursor: pointer;
}

.modal-user-form {
    margin-top: 22px;
}

.user-login-head h1 {
    font-size: clamp(2.2rem, 6vw, 3.6rem);
}

.user-login-form {
    display: grid;
    gap: 18px;
    margin-top: 28px;
}

.register-policy-card {
    margin-top: 18px;
    padding: 18px 18px 18px 20px;
    border: 1px solid rgba(24, 76, 159, 0.16);
    border-radius: 18px;
    background: rgba(232, 241, 255, 0.78);
}

.register-policy-card strong {
    display: block;
    font-size: 0.98rem;
    color: var(--accent-deep);
}

.register-policy-list {
    margin: 12px 0 0;
    padding-left: 18px;
    color: var(--muted);
    line-height: 1.7;
    font-size: 0.94rem;
}

.confirm-modal-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 18px;
}

.login-utility-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 18px;
}

.login-utility-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 14px;
    border: 1px solid rgba(16, 32, 51, 0.1);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.74);
    color: var(--accent-deep);
    font-size: 0.93rem;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
}

.login-utility-button:hover {
    border-color: rgba(43, 111, 219, 0.24);
    background: rgba(237, 244, 255, 0.96);
}

.primary-cta-block {
    width: 100%;
    height: 56px;
    border: 0;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 18px 40px rgba(24, 76, 159, 0.22);
}

.primary-cta-confirm {
    width: 100%;
    height: 46px;
    border: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

#resetPasswordFields {
    display: grid;
    gap: 18px;
    margin-top: 18px;
}

.login-utility-button-wide {
    width: 100%;
}

.login-inline-switch {
    display: block;
    margin-top: 14px;
}

.user-field {
    display: grid;
    gap: 10px;
}

.user-field span {
    font-size: 0.94rem;
    font-weight: 700;
}

.user-field input {
    width: 100%;
    height: 56px;
    padding: 0 16px;
    border: 1px solid rgba(16, 32, 51, 0.12);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.88);
    color: var(--ink);
    font: inherit;
    outline: none;
}

.user-field input:focus {
    border-color: rgba(43, 111, 219, 0.48);
    box-shadow: 0 0 0 4px rgba(43, 111, 219, 0.12);
}

.user-status-card {
    margin-top: 18px;
    padding: 16px 18px;
    border: 1px solid rgba(23, 48, 61, 0.08);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--muted);
    line-height: 1.7;
}

.user-status-card.is-success {
    border-color: rgba(28, 115, 81, 0.2);
    background: rgba(228, 247, 237, 0.92);
    color: #156245;
}

.user-status-card.is-warning {
    border-color: rgba(24, 76, 159, 0.2);
    background: rgba(232, 241, 255, 0.92);
    color: var(--accent-deep);
}

.user-home-body {
    padding: 18px;
}

.user-home-shell {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 20px;
    min-height: calc(100vh - 36px);
}

.user-sidebar,
.user-home-main,
.user-home-card {
    border: 1px solid var(--line);
    border-radius: 28px;
    background: rgba(252, 254, 255, 0.84);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.user-sidebar {
    padding: 18px 16px;
}

.user-sidebar-brand {
    display: inline-flex;
    margin-bottom: 18px;
    color: var(--ink);
    text-decoration: none;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.05em;
}

.user-sidebar-nav {
    display: grid;
    gap: 10px;
}

.user-nav-item {
    display: flex;
    align-items: center;
    min-height: 50px;
    padding: 0 16px;
    border: 1px solid rgba(16, 32, 51, 0.08);
    border-radius: 16px;
    background: rgba(245, 249, 255, 0.78);
    color: var(--ink);
    text-decoration: none;
    font-weight: 700;
}

.user-nav-item.is-active {
    background: linear-gradient(135deg, rgba(43, 111, 219, 0.14) 0%, rgba(24, 76, 159, 0.16) 100%);
    border-color: rgba(43, 111, 219, 0.26);
    color: var(--accent-deep);
}

.user-home-main {
    padding: 28px;
}

.user-home-header {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: flex-start;
}

.user-home-copy h1 {
    margin: 12px 0 12px;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(2rem, 4vw, 3.2rem);
    letter-spacing: -0.05em;
}

.user-home-copy p {
    margin: 0;
    color: var(--muted);
    line-height: 1.8;
}

.user-home-copy code,
.document-card-head code {
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(16, 32, 51, 0.06);
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.92em;
}

.user-account-box {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid rgba(16, 32, 51, 0.08);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.76);
}

.user-account-name {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1rem;
    color: var(--accent-deep);
}

.user-logout-button {
    min-height: 40px;
    padding: 0 14px;
    border: 1px solid rgba(16, 32, 51, 0.1);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.78);
    color: var(--ink);
    font: inherit;
    font-size: 0.92rem;
    font-weight: 700;
    cursor: pointer;
}

.user-home-placeholder {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-top: 28px;
}

.user-home-card {
    padding: 24px;
}

.user-home-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.user-home-card-link:hover {
    transform: translateY(-2px);
    border-color: rgba(43, 111, 219, 0.24);
    box-shadow: 0 18px 36px rgba(29, 67, 122, 0.12);
}

.user-home-card h2 {
    margin: 16px 0 10px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.45rem;
    letter-spacing: -0.04em;
}

.user-home-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
}

.document-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    gap: 18px;
    margin-top: 28px;
}

.document-upload-card,
.document-progress-card {
    border: 1px solid var(--line);
    border-radius: 28px;
    background: rgba(252, 254, 255, 0.84);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.document-upload-card {
    padding: 26px;
}

.document-progress-card {
    padding: 26px;
}

.document-card-head h2 {
    margin: 14px 0 10px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.6rem;
    letter-spacing: -0.04em;
}

.document-card-head p {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
}

.document-upload-form {
    display: grid;
    gap: 18px;
    margin-top: 24px;
}

.document-dropzone {
    display: grid;
    gap: 14px;
    padding: 24px;
    border: 1px dashed rgba(43, 111, 219, 0.28);
    border-radius: 24px;
    background:
        radial-gradient(circle at top right, rgba(43, 111, 219, 0.12), transparent 30%),
        rgba(244, 248, 255, 0.82);
    cursor: pointer;
}

.document-dropzone-step {
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent-deep);
}

.document-dropzone input {
    display: none;
}

.document-dropzone-label {
    display: inline-flex;
    width: fit-content;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(43, 111, 219, 0.12) 0%, rgba(24, 76, 159, 0.16) 100%);
    align-items: center;
    justify-content: center;
    font-size: 0.94rem;
    font-weight: 700;
    color: var(--accent-deep);
    border: 1px solid rgba(43, 111, 219, 0.22);
}

.document-dropzone strong {
    font-size: 1.06rem;
    line-height: 1.6;
}

.document-dropzone small {
    color: var(--muted);
    line-height: 1.7;
}

.document-submit-block {
    display: grid;
    gap: 12px;
}

.document-submit-block p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
    font-size: 0.95rem;
}

.document-progress-list {
    display: grid;
    gap: 14px;
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
}

.document-progress-step {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
    padding: 18px;
    border: 1px solid rgba(16, 32, 51, 0.08);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.72);
}

.document-progress-index {
    display: inline-flex;
    width: 52px;
    height: 52px;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: rgba(16, 32, 51, 0.06);
    font-family: "Space Grotesk", sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--muted);
}

.document-progress-step strong {
    display: block;
    font-size: 1rem;
}

.document-progress-step p {
    margin: 8px 0 0;
    color: var(--muted);
    line-height: 1.7;
}

.document-progress-step.is-active {
    border-color: rgba(43, 111, 219, 0.26);
    background: rgba(232, 241, 255, 0.84);
}

.document-progress-step.is-active .document-progress-index {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
    color: #fff;
}

.document-progress-step.is-completed {
    border-color: rgba(43, 111, 219, 0.18);
    background: rgba(240, 246, 255, 0.8);
}

.document-progress-step.is-completed .document-progress-index {
    background: rgba(43, 111, 219, 0.16);
    color: var(--accent-deep);
}

.document-history-card {
    margin-top: 28px;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: rgba(252, 254, 255, 0.84);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.document-history-empty {
    margin-top: 22px;
    padding: 20px;
    border: 1px dashed rgba(43, 111, 219, 0.2);
    border-radius: 20px;
    color: var(--muted);
    background: rgba(244, 248, 255, 0.78);
}

.document-history-empty[hidden] {
    display: none;
}

.document-history-list {
    display: grid;
    gap: 14px;
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
}

.document-history-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    padding: 18px 20px;
    border: 1px solid rgba(16, 32, 51, 0.08);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.72);
    cursor: pointer;
}

.document-history-item.is-selected {
    border-color: rgba(43, 111, 219, 0.26);
    background: rgba(232, 241, 255, 0.84);
}

.document-history-main strong {
    display: block;
    font-size: 1rem;
}

.document-history-main p {
    margin: 8px 0 0;
    color: var(--muted);
    line-height: 1.7;
    font-size: 0.95rem;
}

.document-history-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 88px;
    padding: 10px 14px;
    border-radius: 999px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    background: rgba(16, 32, 51, 0.06);
    color: var(--muted);
}

.document-history-badge.is-processing {
    background: rgba(43, 111, 219, 0.14);
    color: var(--accent-deep);
}

.document-history-badge.is-completed {
    background: rgba(39, 127, 86, 0.16);
    color: #1f6f4d;
}

.document-history-badge.is-failed {
    background: rgba(184, 58, 75, 0.16);
    color: #8e2938;
}


.exam-status-card,
.exam-entry-card {
    border: 1px solid var(--line);
    border-radius: 28px;
    background: rgba(252, 254, 255, 0.84);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.exam-status-card {
    margin-top: 28px;
    padding: 26px;
}

.exam-card-head h2,
.exam-entry-card h2 {
    margin: 14px 0 10px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.6rem;
    letter-spacing: -0.04em;
}

.exam-card-head p,
.exam-entry-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
}

.exam-empty-state {
    margin-top: 24px;
    padding: 22px;
    border: 1px dashed rgba(43, 111, 219, 0.22);
    border-radius: 22px;
    background: rgba(244, 248, 255, 0.78);
}

.exam-empty-state strong {
    display: block;
    font-size: 1.04rem;
}

.exam-empty-state p {
    margin: 10px 0 0;
    color: var(--muted);
    line-height: 1.75;
}

.exam-active-state {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-top: 24px;
    padding: 22px;
    border: 1px solid rgba(43, 111, 219, 0.2);
    border-radius: 22px;
    background: rgba(232, 241, 255, 0.84);
}

.exam-active-copy strong {
    display: block;
    font-size: 1.06rem;
}

.exam-active-copy p {
    margin: 10px 0 0;
    color: var(--muted);
    line-height: 1.7;
}

.exam-resume-button {
    min-width: 120px;
}

.exam-created-section {
    margin-top: 22px;
    padding-top: 22px;
    border-top: 1px solid rgba(16, 32, 51, 0.08);
}

.exam-created-head strong {
    display: block;
    font-size: 1.02rem;
}

.exam-created-head p {
    margin: 10px 0 0;
    color: var(--muted);
    line-height: 1.7;
}

.exam-entry-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 18px;
}

.exam-entry-card {
    padding: 26px;
}

.exam-entry-form {
    display: grid;
    gap: 18px;
    margin: 20px 0 24px;
}

.exam-select {
    width: 100%;
    height: 56px;
    padding: 0 16px;
    border: 1px solid rgba(16, 32, 51, 0.12);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.88);
    color: var(--ink);
    font: inherit;
    outline: none;
    appearance: none;
}

.exam-select:focus {
    border-color: rgba(43, 111, 219, 0.48);
    box-shadow: 0 0 0 4px rgba(43, 111, 219, 0.12);
}

.exam-room-shell {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 20px;
    min-height: calc(100vh - 36px);
    padding: 18px;
}

.exam-room-sidebar,
.exam-room-main,
.exam-question-card {
    border: 1px solid var(--line);
    border-radius: 28px;
    background: rgba(252, 254, 255, 0.84);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.exam-room-sidebar {
    padding: 18px 16px;
    position: sticky;
    top: 18px;
    align-self: start;
    max-height: calc(100vh - 36px);
    overflow-y: auto;
}

.exam-room-main {
    padding: 28px;
}

.exam-room-summary {
    display: grid;
    gap: 18px;
}

.exam-room-summary h2 {
    margin: 14px 0 0;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.9rem;
    letter-spacing: -0.05em;
}

.exam-room-timer-box {
    display: grid;
    gap: 10px;
    padding: 18px;
    border-radius: 22px;
    background: linear-gradient(135deg, rgba(43, 111, 219, 0.12) 0%, rgba(24, 76, 159, 0.16) 100%);
    border: 1px solid rgba(43, 111, 219, 0.18);
}

.exam-room-timer-box span {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--muted);
}

.exam-room-timer-box strong {
    font-family: "Space Grotesk", sans-serif;
    font-size: 2.4rem;
    letter-spacing: -0.05em;
    color: var(--accent-deep);
}

.exam-room-meta {
    display: grid;
    gap: 12px;
    margin: 0;
}

.exam-room-meta div {
    padding: 14px 16px;
    border: 1px solid rgba(16, 32, 51, 0.08);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.76);
}

.exam-room-meta dt {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--muted);
}

.exam-room-meta dd {
    margin: 8px 0 0;
    font-weight: 700;
    color: var(--ink);
}

.exam-room-empty {
    display: grid;
    gap: 14px;
    margin-top: 18px;
}

.exam-room-empty strong {
    font-size: 1.04rem;
}

.exam-room-empty p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.exam-question-list {
    display: grid;
    gap: 18px;
    margin-top: 28px;
}

.exam-question-card {
    padding: 24px;
}

.exam-question-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}

.exam-question-head h2 {
    margin: 14px 0 0;
    font-size: 1.3rem;
    letter-spacing: -0.04em;
}

.exam-answer-badge {
    display: inline-flex;
    min-width: 84px;
    min-height: 36px;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    border-radius: 999px;
    background: rgba(16, 32, 51, 0.08);
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 700;
}

.exam-answer-badge.is-confirmed {
    background: rgba(228, 247, 237, 0.92);
    color: #156245;
}

.exam-question-body {
    display: grid;
    gap: 12px;
    margin-top: 22px;
}

.exam-choice-option {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 54px;
    padding: 0 16px;
    border: 1px solid rgba(16, 32, 51, 0.08);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.76);
}

.exam-choice-option span {
    font-weight: 700;
}

.exam-question-actions {
    margin-top: 18px;
    display: flex;
    justify-content: flex-end;
}

.exam-submit-button {
    width: 100%;
    margin-top: 6px;
}

.history-list-section,
.history-detail-section,
.history-question-card,
.history-row-item {
    border: 1px solid var(--line);
    border-radius: 28px;
    background: rgba(252, 254, 255, 0.84);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.history-list-section,
.history-detail-section {
    margin-top: 28px;
    padding: 26px;
}

.history-section-head h2 {
    margin: 14px 0 10px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.6rem;
    letter-spacing: -0.04em;
}

.history-section-head p {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
}

.history-linear-list {
    display: grid;
    gap: 12px;
    margin-top: 22px;
}

.history-row-item {
    display: grid;
    grid-template-columns: minmax(220px, 1.4fr) 92px 120px 90px minmax(180px, 1fr) 140px;
    align-items: center;
    gap: 12px;
    padding: 18px 20px;
    text-align: left;
}

.history-row-item .primary-cta {
    min-height: 42px;
    padding: 0 14px;
}

.history-row-item:hover {
    border-color: rgba(43, 111, 219, 0.28);
    background: rgba(232, 241, 255, 0.84);
}

.history-row-title {
    font-weight: 700;
    line-height: 1.6;
    color: var(--ink);
}

.history-pass-badge,
.history-result-badge {
    display: inline-flex;
    min-width: 70px;
    min-height: 34px;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    border-radius: 999px;
    font-size: 0.84rem;
    font-weight: 700;
}

.history-pass-badge.is-pass,
.history-result-badge.is-correct {
    background: rgba(228, 247, 237, 0.92);
    color: #156245;
}

.history-pass-badge.is-fail,
.history-result-badge.is-wrong {
    background: rgba(255, 239, 239, 0.92);
    color: #a63a3a;
}

.history-row-meta {
    color: var(--muted);
    line-height: 1.6;
}

.history-back-row {
    margin-top: 28px;
}

.history-detail-list {
    display: grid;
    gap: 18px;
}

.history-question-card {
    padding: 24px;
}

.history-question-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}

.history-question-head h3 {
    margin: 14px 0 0;
    font-size: 1.2rem;
    letter-spacing: -0.04em;
}

.history-answer-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 22px 0 0;
}

.history-answer-grid div {
    padding: 16px;
    border: 1px solid rgba(16, 32, 51, 0.08);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.76);
}

.history-answer-grid dt {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--muted);
}

.history-answer-grid dd {
    margin: 10px 0 0;
    line-height: 1.7;
    font-weight: 700;
}

.history-explanation-box {
    margin-top: 18px;
    padding: 18px;
    border-radius: 18px;
    background: rgba(244, 248, 255, 0.78);
    border: 1px solid rgba(43, 111, 219, 0.16);
}

.history-explanation-box strong {
    display: block;
    color: var(--accent-deep);
}

.history-explanation-box p {
    margin: 10px 0 0;
    color: var(--muted);
    line-height: 1.75;
}

@media (max-width: 960px) {
    .showcase-stage {
        grid-template-columns: 1fr;
    }

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

    .user-home-shell {
        grid-template-columns: 1fr;
    }

    .user-home-placeholder {
        grid-template-columns: 1fr;
    }

    .document-workspace {
        grid-template-columns: 1fr;
    }


    .exam-entry-grid {
        grid-template-columns: 1fr;
    }

    .exam-room-shell {
        grid-template-columns: 1fr;
    }

    .history-linear-list,
    .history-answer-grid {
        grid-template-columns: 1fr;
    }

    .history-row-item {
        grid-template-columns: 1fr;
        align-items: start;
    }
}

@media (max-width: 640px) {
    .landing-shell {
        width: min(100%, calc(100% - 24px));
        padding-top: 14px;
    }

    .hero-panel,
    .user-login-panel {
        border-radius: 24px;
    }

    .user-modal-card {
        border-radius: 24px;
        padding: 22px 18px 20px;
    }

    .hero-panel {
        padding: 36px 0 16px;
    }

    .landing-stats-panel {
        padding: 24px 20px;
        border-radius: 24px;
    }

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

}