:root {
    --app-font-family: 'Space Grotesk', 'Manrope', sans-serif;
    --app-font-mono: 'IBM Plex Mono', monospace;
    --app-bg: #ecece7;
    --app-bg-alt: #e3e4df;
    --app-surface: #f8f8f5;
    --app-surface-soft: #f1f2ee;
    --app-surface-glass: rgba(248, 248, 245, 0.9);
    --app-text: #07033f;
    --app-muted: #4b4867;
    --app-muted-strong: #2e2a53;
    --app-primary: #3a2dff;
    --app-primary-strong: #2414cf;
    --app-primary-soft: rgba(58, 45, 255, 0.1);
    --app-accent: #c9ff2d;
    --app-success: #198a5f;
    --app-warning: #ba7d1d;
    --app-danger: #b82c4f;
    --app-border: rgba(7, 3, 63, 0.18);
    --app-border-strong: rgba(7, 3, 63, 0.38);
    --radius-xs: 0.32rem;
    --radius-sm: 0.5rem;
    --radius-md: 0.72rem;
    --radius-lg: 0.95rem;
    --radius-xl: 1.15rem;
    --shadow-xs: 0 7px 18px rgba(7, 3, 63, 0.07);
    --shadow-sm: 0 14px 30px rgba(7, 3, 63, 0.09);
    --shadow-md: 0 22px 44px rgba(7, 3, 63, 0.12);
    --shadow-lg: 0 30px 56px rgba(7, 3, 63, 0.16);
    --space-1: 0.5rem;
    --space-2: 0.75rem;
    --space-3: 1rem;
    --space-4: 1.25rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 2.5rem;
    --space-8: 3rem;
    --focus-ring: 0 0 0 0.2rem rgba(58, 45, 255, 0.2);
}

* {
    box-sizing: border-box;
}

html,
body {
    scroll-behavior: auto;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--app-font-family);
    color: var(--app-text);
    background:
        radial-gradient(circle at 8% 8%, rgba(58, 45, 255, 0.08), transparent 28%),
        radial-gradient(circle at 92% 14%, rgba(201, 255, 45, 0.14), transparent 26%),
        linear-gradient(180deg, var(--app-bg) 0%, var(--app-bg-alt) 100%);
    line-height: 1.58;
    letter-spacing: 0.006em;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    position: relative;
}

main {
    position: relative;
    z-index: 2;
}

.exam-page main {
    height: 150vh;
    position: relative;
    z-index: 2;
}

.bg-layer {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        repeating-linear-gradient(to right, transparent 0, transparent 163px, rgba(7, 3, 63, 0.08) 163px, rgba(7, 3, 63, 0.08) 164px),
        radial-gradient(circle at 16% 14%, rgba(58, 45, 255, 0.1), transparent 30%),
        radial-gradient(circle at 82% 20%, rgba(201, 255, 45, 0.12), transparent 32%);
    opacity: 0.95;
    animation: ambientShift 20s ease-in-out infinite alternate;
}

a {
    color: #2f23e4;
    text-decoration-color: rgba(47, 35, 228, 0.46);
    transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

a:hover,
a:focus {
    color: #2414cf;
    text-decoration-color: rgba(36, 20, 207, 0.74);
}

h1,
.h1,
h2,
.h2,
h3,
.h3,
h4,
.h4,
h5,
.h5,
h6,
.h6 {
    color: var(--app-text);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.text-secondary {
    color: var(--app-muted) !important;
}

.text-primary {
    color: var(--app-primary) !important;
}

.app-navbar {
    position: sticky;
    top: 0;
    z-index: 1040;
    border-bottom: 1px solid var(--app-border-strong);
    background: rgba(236, 236, 231, 0.92);
    backdrop-filter: blur(12px);
    box-shadow: 0 6px 0 rgba(7, 3, 63, 0.06);
}

.navbar-brand {
    color: var(--app-text);
    font-weight: 700;
    letter-spacing: 0.012em;
    text-transform: uppercase;
}

.navbar-brand:hover,
.navbar-brand:focus {
    color: var(--app-text);
}

.brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 0.55rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--app-primary);
    background: #f2f0ff;
    border: 1px solid var(--app-border-strong);
    box-shadow: 3px 3px 0 rgba(7, 3, 63, 0.16);
}

.brand-mark .lucide {
    width: 17px;
    height: 17px;
    stroke-width: 2.1;
}

.brand-dot {
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: var(--app-accent);
    box-shadow: 0 0 0 2px rgba(7, 3, 63, 0.2);
    animation: brandDotBlink 1.2s ease-in-out infinite;
}

.top-user-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.42rem 0.72rem;
    border-radius: 999px;
    border: 1px solid var(--app-border-strong);
    color: var(--app-text);
    background: rgba(248, 248, 245, 0.78);
    font-size: 0.81rem;
    font-weight: 500;
}

.top-user-pill .lucide {
    width: 14px;
    height: 14px;
}

.top-admin-link {
    white-space: nowrap;
}

.top-access-switch {
    flex-wrap: wrap;
    justify-content: flex-end;
}

.top-access-btn {
    white-space: nowrap;
    font-family: var(--app-font-mono);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.platform-footer {
    position: relative;
    z-index: 2;
    border-top: 1.25px solid var(--app-border-strong);
    background: rgba(248, 248, 245, 0.9);
    backdrop-filter: blur(8px);
}

.platform-footer-inner {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0.92rem clamp(1rem, 2vw, 1.45rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.9rem 1.4rem;
}

.platform-footer-brand {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
}

.platform-footer-brand img {
    width: auto;
    height: 28px;
    display: block;
}

.platform-footer-company {
    margin: 0;
    color: var(--app-muted-strong);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-align: center;
}

.platform-footer-agency {
    display: inline-flex;
    align-items: center;
    gap: 0.48rem;
    color: var(--app-muted-strong);
    text-decoration: none;
    font-size: 0.76rem;
    font-weight: 600;
    white-space: nowrap;
}

.platform-footer-agency img {
    width: auto;
    height: 24px;
    display: block;
}

.hero-card {
    position: relative;
    overflow: hidden;
    border: 1.35px solid var(--app-border-strong);
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, rgba(248, 248, 245, 0.98), rgba(240, 241, 236, 0.95));
    box-shadow: var(--shadow-md);
}

.hero-card::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--app-primary), var(--app-accent));
}

.hero-card::after {
    content: '';
    position: absolute;
    right: 0.95rem;
    top: 0.95rem;
    width: 0.8rem;
    height: 0.8rem;
    border: 1px solid var(--app-border-strong);
    background: rgba(201, 255, 45, 0.4);
    border-radius: 0.18rem;
}

.card {
    border: 1.25px solid var(--app-border-strong);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
    background: var(--app-surface);
}

.card.border-0 {
    border-color: var(--app-border-strong) !important;
}

.card.shadow-sm,
.card.shadow-lg {
    box-shadow: var(--shadow-sm) !important;
}

.course-card {
    border-radius: var(--radius-lg);
    border: 1.25px solid var(--app-border-strong);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.course-card:hover {
    transform: translateY(-4px);
    border-color: rgba(58, 45, 255, 0.48);
    box-shadow: var(--shadow-md);
}

.course-actions-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(0.9rem, 1.8vw, 1.35rem);
}

.course-action-card {
    position: relative;
    overflow: hidden;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    padding: clamp(1rem, 2.2vw, 1.45rem);
    border: 1.35px solid var(--app-border-strong);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(248, 248, 245, 0.98) 0%, rgba(240, 241, 236, 0.94) 100%);
    box-shadow: var(--shadow-sm);
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.course-action-card::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 4px;
    background: linear-gradient(90deg, rgba(7, 3, 63, 0.45), rgba(58, 45, 255, 0.35));
}

.course-action-card:hover {
    transform: translateY(-6px);
    border-color: rgba(58, 45, 255, 0.5);
    box-shadow: var(--shadow-md);
}

.course-action-card-highlight {
    background: linear-gradient(180deg, rgba(238, 236, 255, 0.98) 0%, rgba(232, 247, 255, 0.94) 100%);
}

.course-action-card-highlight::before {
    background: linear-gradient(90deg, var(--app-primary), #2c8fff, var(--app-accent));
}

.course-action-icon {
    width: 2.7rem;
    height: 2.7rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.85rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1.15px solid var(--app-border-strong);
    background: rgba(248, 248, 245, 0.92);
    box-shadow: inset 0 -1px 0 rgba(7, 3, 63, 0.08);
}

.course-action-icon .lucide {
    width: 1.2rem;
    height: 1.2rem;
    color: var(--app-primary);
}

.course-action-card h2 {
    font-size: clamp(1.05rem, 1.45vw, 1.22rem);
}

.course-action-card p {
    font-size: 0.95rem;
}

.course-action-btn {
    margin-top: auto;
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    font-weight: 600;
}

.course-actions-footer {
    display: flex;
    justify-content: flex-end;
}

.app-body.auth-page {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    min-height: 100vh;
}

.app-body.auth-page > main {
    flex: 1 0 auto;
    display: flex;
    align-items: center;
}

.app-body.auth-page > main > .container {
    width: 100%;
}

.app-body.auth-page > .platform-footer {
    margin-top: auto;
}

.auth-card {
    border-radius: var(--radius-xl);
    border: 1.35px solid var(--app-border-strong);
    background: var(--app-surface-glass);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
}

.student-login-page .bg-layer {
    background:
        radial-gradient(950px 450px at 12% -8%, rgba(32, 126, 255, 0.22), transparent 60%),
        radial-gradient(900px 420px at 88% -10%, rgba(13, 75, 214, 0.2), transparent 58%),
        linear-gradient(180deg, #f4f9ff 0%, #eef4ff 100%);
}

.student-login-card {
    position: relative;
    border: 2px solid rgba(24, 97, 255, 0.38);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 247, 255, 0.96));
    box-shadow: 0 22px 48px rgba(19, 86, 227, 0.18) !important;
}

.student-login-card::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 6px;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    background: linear-gradient(90deg, #0059ff 0%, #3c8bff 55%, #71b0ff 100%);
}

.student-login-kicker {
    font-family: var(--app-font-mono);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 600;
    font-size: 0.74rem;
    color: #1b4ec8;
}

.student-login-title {
    font-size: clamp(2rem, 6vw, 3.3rem);
    line-height: 0.98;
    letter-spacing: 0.02em;
    font-weight: 700;
    color: #0b3ea8;
    text-transform: uppercase;
}

.student-login-subtitle {
    color: #39507a;
    font-size: 1rem;
}

.student-login-page .btn-primary {
    background: linear-gradient(180deg, #0d62ff 0%, #0a4bcb 100%);
    border-color: #0a4bcb;
}

.student-login-page .btn-primary:hover,
.student-login-page .btn-primary:focus {
    background: linear-gradient(180deg, #0a57e9 0%, #093da5 100%);
    border-color: #093da5;
}

.student-login-hero {
    background: linear-gradient(145deg, #0a45bb 0%, #0f67e4 50%, #2f91ff 100%);
    border-color: rgba(7, 50, 142, 0.55);
    box-shadow: 0 24px 52px rgba(8, 58, 164, 0.28);
}

.student-login-hero::before {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.88), rgba(206, 226, 255, 0.92));
}

.student-login-hero .text-secondary {
    color: rgba(238, 247, 255, 0.9) !important;
}

.student-login-hero strong,
.student-login-hero h2 {
    color: #ffffff;
}

.student-login-hero .text-bg-light {
    background: rgba(255, 255, 255, 0.18) !important;
    border-color: rgba(255, 255, 255, 0.5) !important;
    color: #ffffff !important;
}

.student-login-icon {
    color: #cfe4ff;
}

.auth-support-links {
    display: grid;
    gap: 0.35rem;
}

.auth-support-link {
    color: var(--app-text);
}

.auth-support-link-question {
    font-size: 1.03rem;
    font-weight: 500;
    text-decoration: none;
}

.auth-support-link-question:hover,
.auth-support-link-question:focus {
    text-decoration: underline;
}

.credential-hint {
    border-radius: var(--radius-md);
    border: 1px solid rgba(58, 45, 255, 0.45);
    background: rgba(58, 45, 255, 0.08);
}

.result-box {
    padding: var(--space-3);
    border-radius: var(--radius-md);
    border: 1.15px solid var(--app-border);
    background: #ffffff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.badge {
    font-family: var(--app-font-mono);
    font-weight: 600;
    font-size: 0.73rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.42em 0.74em;
    border: 1px solid var(--app-border-strong);
}

.text-bg-primary {
    background: var(--app-primary) !important;
    color: #ffffff !important;
    border-color: rgba(36, 20, 207, 0.9) !important;
}

.text-bg-light {
    background: #f8f8f5 !important;
    color: var(--app-text) !important;
    border-color: var(--app-border-strong) !important;
}

.text-bg-success {
    background: rgba(25, 138, 95, 0.16) !important;
    color: #146c4a !important;
    border-color: rgba(25, 138, 95, 0.55) !important;
}

.text-bg-danger {
    background: rgba(184, 44, 79, 0.14) !important;
    color: #88223d !important;
    border-color: rgba(184, 44, 79, 0.56) !important;
}

.form-label {
    font-family: var(--app-font-mono);
    font-size: 0.76rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--app-muted-strong);
    margin-bottom: 0.55rem;
}

.form-control,
.form-select {
    border-radius: var(--radius-sm);
    border: 1.25px solid var(--app-border-strong);
    min-height: 46px;
    color: var(--app-text);
    background: #ffffff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.form-control::placeholder {
    color: #817d9b;
}

.form-control:hover,
.form-select:hover {
    border-color: rgba(7, 3, 63, 0.5);
}

.form-control:focus,
.form-select:focus,
.form-check-input:focus {
    border-color: rgba(58, 45, 255, 0.78);
    box-shadow: var(--focus-ring);
}

.form-control-sm,
.form-select-sm {
    min-height: 34px;
}

textarea.form-control {
    min-height: 112px;
}

.form-check-input {
    border-color: var(--app-border-strong);
}

.form-check-input:checked {
    background-color: var(--app-primary);
    border-color: var(--app-primary);
}

.password-field {
    position: relative;
}

.password-field .form-control {
    padding-right: 2.85rem;
}

.password-toggle {
    position: absolute;
    top: 50%;
    right: 0.74rem;
    transform: translateY(-50%);
    width: 1.55rem;
    height: 1.55rem;
    border: 0;
    padding: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--app-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.password-toggle:hover {
    color: var(--app-text);
}

.password-toggle:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.password-toggle .lucide {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

.btn {
    --bs-btn-font-weight: 700;
    --bs-btn-border-radius: var(--radius-sm);
    --bs-btn-padding-x: 0.95rem;
    --bs-btn-padding-y: 0.52rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    letter-spacing: 0.015em;
    border-width: 1.2px;
    min-height: 40px;
    transition: transform 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease, border-color 0.16s ease;
}

.btn .lucide {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.btn:focus-visible {
    box-shadow: var(--focus-ring);
}

.btn:disabled,
.btn.disabled {
    opacity: 0.55;
    box-shadow: none !important;
}

.btn-primary {
    --bs-btn-bg: var(--app-primary);
    --bs-btn-border-color: var(--app-primary);
    --bs-btn-color: #ffffff;
    --bs-btn-hover-bg: var(--app-primary-strong);
    --bs-btn-hover-border-color: var(--app-primary-strong);
    --bs-btn-active-bg: #16089f;
    --bs-btn-active-border-color: #16089f;
    box-shadow: 3px 3px 0 rgba(36, 20, 207, 0.34);
}

.btn-outline-primary {
    --bs-btn-color: #2f23e4;
    --bs-btn-border-color: rgba(47, 35, 228, 0.64);
    --bs-btn-hover-bg: rgba(58, 45, 255, 0.11);
    --bs-btn-hover-border-color: rgba(47, 35, 228, 0.84);
    --bs-btn-active-bg: rgba(58, 45, 255, 0.2);
    --bs-btn-active-border-color: rgba(47, 35, 228, 0.92);
    box-shadow: 3px 3px 0 rgba(58, 45, 255, 0.13);
}

.btn-outline-secondary {
    --bs-btn-color: var(--app-muted-strong);
    --bs-btn-border-color: var(--app-border-strong);
    --bs-btn-hover-bg: rgba(7, 3, 63, 0.08);
    --bs-btn-hover-border-color: rgba(7, 3, 63, 0.56);
    --bs-btn-active-bg: rgba(7, 3, 63, 0.14);
    --bs-btn-active-border-color: rgba(7, 3, 63, 0.66);
}

.btn-outline-success {
    --bs-btn-color: #157f58;
    --bs-btn-border-color: rgba(21, 127, 88, 0.56);
    --bs-btn-hover-bg: rgba(21, 127, 88, 0.11);
    --bs-btn-hover-border-color: rgba(21, 127, 88, 0.75);
}

.btn-outline-warning {
    --bs-btn-color: #8f6118;
    --bs-btn-border-color: rgba(143, 97, 24, 0.58);
    --bs-btn-hover-bg: rgba(143, 97, 24, 0.12);
    --bs-btn-hover-border-color: rgba(143, 97, 24, 0.74);
}

.btn-outline-light {
    --bs-btn-color: var(--app-text);
    --bs-btn-border-color: var(--app-border-strong);
    --bs-btn-hover-bg: rgba(7, 3, 63, 0.08);
    --bs-btn-hover-border-color: rgba(7, 3, 63, 0.56);
    --bs-btn-active-bg: rgba(7, 3, 63, 0.12);
    --bs-btn-active-border-color: rgba(7, 3, 63, 0.62);
}

.btn-outline-danger {
    --bs-btn-color: var(--app-danger);
    --bs-btn-border-color: rgba(184, 44, 79, 0.62);
    --bs-btn-hover-bg: rgba(184, 44, 79, 0.11);
    --bs-btn-hover-border-color: rgba(184, 44, 79, 0.8);
}

.btn-danger {
    --bs-btn-bg: var(--app-danger);
    --bs-btn-border-color: var(--app-danger);
    --bs-btn-hover-bg: #9f2144;
    --bs-btn-hover-border-color: #9f2144;
    box-shadow: 3px 3px 0 rgba(159, 33, 68, 0.28);
}

.btn-sm {
    font-size: 0.76rem;
    min-height: 34px;
    letter-spacing: 0.02em;
}

.btn-lg {
    min-height: 46px;
}

.btn.is-loading {
    pointer-events: none;
    opacity: 0.9;
}

.btn.is-loading::after {
    content: '';
    width: 13px;
    height: 13px;
    border-radius: 999px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    animation: appSpin 0.72s linear infinite;
}

.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--app-text);
    margin-bottom: 0;
}

.table > :not(caption) > * > * {
    padding: 0.82rem 0.84rem;
    border-color: rgba(7, 3, 63, 0.14);
    vertical-align: middle;
}

.table thead th {
    font-family: var(--app-font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--app-muted);
    font-weight: 600;
}

.table-hover > tbody > tr {
    transition: background-color 0.2s ease;
}

.table-hover > tbody > tr:hover {
    --bs-table-accent-bg: rgba(58, 45, 255, 0.06);
}

.alert {
    border-radius: var(--radius-md);
    border: 1.15px solid var(--app-border-strong);
    background: var(--app-surface);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.alert .lucide {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
    margin-top: 0.1rem;
}

.alert-danger {
    color: #7b1f39;
    border-color: rgba(184, 44, 79, 0.42);
    background: rgba(184, 44, 79, 0.1);
}

.alert-success {
    color: #126d4c;
    border-color: rgba(25, 138, 95, 0.46);
    background: rgba(25, 138, 95, 0.11);
}

.alert-warning {
    color: #7b5313;
    border-color: rgba(186, 125, 29, 0.5);
    background: rgba(186, 125, 29, 0.13);
}

.alert-info {
    color: #3123ca;
    border-color: rgba(58, 45, 255, 0.48);
    background: rgba(58, 45, 255, 0.1);
}

.alert-light {
    color: var(--app-muted-strong);
    border-color: var(--app-border);
    background: rgba(248, 248, 245, 0.88);
}

.ratio,
video,
iframe {
    border: 1px solid var(--app-border);
    border-radius: var(--radius-md);
}

.exam-layout {
    align-items: flex-start;
}

.exam-main-card,
.exam-side-card {
    border-radius: var(--radius-xl);
    border: 1.25px solid var(--app-border-strong);
    box-shadow: var(--shadow-sm);
}

.exam-main-card {
    overflow: hidden;
}

.exam-side-card {
    position: sticky;
    top: calc(84px + 1rem);
}

.exam-progress {
    height: 0.64rem;
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid var(--app-border);
    background: rgba(7, 3, 63, 0.09);
}

.exam-progress .progress-bar {
    background: linear-gradient(90deg, var(--app-primary), #6f60ff, var(--app-accent));
    transition: width 0.25s ease;
}

.exam-question-shell {
    border: 1.2px solid var(--app-border-strong);
    border-radius: var(--radius-lg);
    background: #ffffff;
    min-height: 340px;
}

.exam-question-container {
    padding: var(--space-5);
}

.exam-question-card h3 {
    line-height: 1.45;
}

.exam-question-enter {
    animation: examQuestionReveal 0.2s ease;
}

.exam-options-list {
    display: grid;
    gap: 0.76rem;
}

.exam-option-btn {
    width: 100%;
    border: 1.2px solid var(--app-border-strong);
    border-radius: var(--radius-md);
    background: #ffffff;
    padding: 0.88rem 0.95rem;
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: 0.78rem;
    font-size: 0.95rem;
    transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease;
}

.exam-option-btn:hover {
    transform: translateY(-2px);
    border-color: rgba(58, 45, 255, 0.74);
    box-shadow: var(--shadow-xs);
}

.exam-option-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.exam-option-btn.active {
    border-color: rgba(58, 45, 255, 0.9);
    background: rgba(58, 45, 255, 0.08);
    box-shadow: 0 0 0 0.2rem rgba(58, 45, 255, 0.13);
}

.exam-option-letter {
    min-width: 30px;
    width: 30px;
    height: 30px;
    border-radius: 0.44rem;
    border: 1px solid var(--app-border-strong);
    background: #f2f1ff;
    color: #20148d;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--app-font-mono);
    font-weight: 600;
    font-size: 0.78rem;
}

.exam-option-btn.active .exam-option-letter {
    background: var(--app-primary);
    color: #ffffff;
    border-color: var(--app-primary-strong);
}

.exam-option-text {
    color: #1f1a4b;
    font-weight: 500;
}

.exam-timer {
    font-size: 2.32rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #21158f;
    line-height: 1;
}

.exam-timer.is-warning {
    color: var(--app-danger);
    animation: pulseTimer 1.1s ease infinite;
}

.exam-question-nav {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.5rem;
}

.exam-nav-btn {
    min-height: 40px;
    border: 1.2px solid var(--app-border-strong);
    border-radius: 0.62rem;
    background: #ffffff;
    color: #1f194e;
    font-family: var(--app-font-mono);
    font-weight: 600;
    font-size: 0.82rem;
    transition: transform 0.16s ease, border-color 0.16s ease, background-color 0.16s ease, color 0.16s ease;
}

.exam-nav-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(58, 45, 255, 0.72);
}

.exam-nav-btn.current {
    background: var(--app-primary);
    color: #ffffff;
    border-color: var(--app-primary-strong);
    box-shadow: 2px 2px 0 rgba(36, 20, 207, 0.28);
}

.exam-nav-btn.answered:not(.current) {
    background: rgba(201, 255, 45, 0.38);
    border-color: rgba(7, 3, 63, 0.42);
    color: #152d0b;
}

.exam-sync-status {
    min-height: 1.4rem;
}

.exam-sync-status.is-pending {
    color: #3427d5;
}

.exam-sync-status.is-error {
    color: #8f213f;
}

.exam-sync-status.is-ok {
    color: #126d4c;
}

[data-animate] {
    will-change: transform, opacity;
}

@keyframes appSpin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes examQuestionReveal {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulseTimer {
    0% {
        text-shadow: 0 0 0 rgba(184, 44, 79, 0.2);
    }

    50% {
        text-shadow: 0 0 15px rgba(184, 44, 79, 0.28);
    }

    100% {
        text-shadow: 0 0 0 rgba(184, 44, 79, 0.2);
    }
}

@keyframes ambientShift {
    from {
        transform: translate3d(0, 0, 0);
    }

    to {
        transform: translate3d(0, -8px, 0);
    }
}

@keyframes brandDotBlink {
    0% {
        opacity: 1;
        transform: scale(1);
        box-shadow: 0 0 0 2px rgba(7, 3, 63, 0.2), 0 0 0 0 rgba(201, 255, 45, 0.55);
    }

    50% {
        opacity: 0.45;
        transform: scale(0.92);
        box-shadow: 0 0 0 2px rgba(7, 3, 63, 0.16), 0 0 0 6px rgba(201, 255, 45, 0.08);
    }

    100% {
        opacity: 1;
        transform: scale(1);
        box-shadow: 0 0 0 2px rgba(7, 3, 63, 0.2), 0 0 0 0 rgba(201, 255, 45, 0);
    }
}

@media (max-width: 1199.98px) {
    .exam-side-card {
        position: static;
        top: auto;
    }

    .course-actions-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 991.98px) {
    .app-body.auth-page > main {
        align-items: flex-start;
    }

    .hero-card {
        border-radius: var(--radius-lg);
    }

    .exam-question-container {
        padding: var(--space-4);
    }

    .platform-footer-inner {
        justify-content: center;
    }

    .platform-footer-company {
        width: 100%;
        order: 3;
    }
}

@media (max-width: 767.98px) {
    .course-actions-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .course-actions-footer {
        justify-content: stretch;
    }

    .course-actions-footer .btn {
        width: 100%;
    }
}

@media (max-width: 575.98px) {
    .btn {
        width: 100%;
    }

    .top-admin-link {
        width: auto;
    }

    .d-flex.gap-2 > .btn,
    .d-flex.gap-2 > form .btn {
        width: auto;
    }

    .exam-question-nav {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .platform-footer-inner {
        flex-direction: column;
        align-items: center;
        gap: 0.58rem;
    }

    .platform-footer-brand img {
        height: 26px;
    }

    .platform-footer-agency img {
        height: 21px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}