body {
    background: #f5f7fb;
    font-family: Arial, Helvetica, sans-serif;
}

.card {
    transition: 0.3s;
}

.form-control,
.form-select {
    border-radius: 12px;
}

.btn {
    border-radius: 12px;
}

h1 {
    letter-spacing: -1px;
}
/* ============================= */
/* STUDENT DASHBOARD             */
/* ============================= */

.student-page {
    margin: 0;
    background: #f5f7fb;
}

.student-layout {
    display: flex;
    min-height: 100vh;
}

.student-sidebar {
    position: fixed;
    width: 250px;
    height: 100vh;
    background: #111827;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
}

.student-logo {
    color: white;
    font-size: 22px;
    font-weight: 700;
}

.student-logo span {
    color: #3b82f6;
}

.student-nav {
    margin-top: 45px;
}

.student-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;

    padding: 13px 15px;
    margin-bottom: 8px;

    border-radius: 12px;

    color: #9ca3af;
    text-decoration: none;

    transition: 0.2s;
}

.student-nav-link:hover,
.student-nav-link.active {
    background: #1f2937;
    color: white;
}

.logout-link {
    margin-top: auto;
}


.student-main {
    margin-left: 250px;
    width: calc(100% - 250px);
    padding: 40px;
}


.student-header {
    display: flex;
    align-items: center;
    justify-content: space-between;

    margin-bottom: 45px;
}

.student-welcome {
    color: #6b7280;
    margin-bottom: 3px;
}

.student-header h2 {
    font-weight: 700;
    margin-bottom: 3px;
}

.student-avatar {
    width: 55px;
    height: 55px;

    border-radius: 50%;

    background: white;

    display: flex;
    align-items: center;
    justify-content: center;

    font-size: 24px;
    color: #2563eb;

    box-shadow: 0 3px 15px rgba(0,0,0,0.07);
}


.student-section {
    max-width: 1050px;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;

    margin-bottom: 20px;
}

.section-title h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 3px;
}

.section-title p {
    color: #6b7280;
    margin: 0;
}

.assignment-counter {
    background: #eff6ff;
    color: #2563eb;

    padding: 8px 14px;

    border-radius: 20px;

    font-size: 14px;
    font-weight: 600;
}


.assignment-card {
    background: white;

    border-radius: 18px;

    padding: 23px 25px;

    margin-bottom: 15px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    box-shadow: 0 4px 20px rgba(0,0,0,0.045);
}


.assignment-info {
    display: flex;
    align-items: center;
    gap: 18px;
}


.subject-icon {
    width: 52px;
    height: 52px;

    border-radius: 14px;

    background: #eff6ff;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #2563eb;

    font-size: 22px;

    flex-shrink: 0;
}


.subject-label {
    color: #2563eb;

    font-size: 13px;
    font-weight: 600;
}

.assignment-card h4 {
    margin: 3px 0 10px;

    font-size: 18px;
    font-weight: 700;
}


.assignment-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;

    color: #6b7280;

    font-size: 13px;
}

.assignment-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}


.start-test-btn {
    border-radius: 11px;

    padding: 10px 20px;

    white-space: nowrap;
}


/* RESULTS */

.result-card {
    background: white;

    border-radius: 18px;

    padding: 20px 24px;

    margin-bottom: 14px;

    display: flex;
    align-items: center;

    gap: 22px;

    box-shadow: 0 4px 20px rgba(0,0,0,0.045);
}


.score-circle {
    width: 82px;
    height: 82px;

    border-radius: 50%;

    display: flex;
    align-items: center;
    justify-content: center;

    flex-shrink: 0;

    border: 7px solid;
}


.score-circle span {
    font-size: 23px;
    color: #111827;
}


/* 0 - 49 */

.score-red {
    border-color: #ef4444;
}


/* 50 - 69 */

.score-yellow {
    border-color: #f4c430;
}


/* 70 - 89 */

.score-blue {
    border-color: #4299e1;
}


/* 90 - 100 */

.score-green {
    border-color: #56c778;
}


.result-info {
    flex: 1;
}

.result-subject {
    color: #6b7280;
    font-size: 14px;
}

.result-info h4 {
    margin: 3px 0 10px;

    font-size: 18px;
    font-weight: 600;
}


.result-bottom {
    display: flex;
    gap: 20px;

    color: #9ca3af;
    font-size: 13px;
}


.passed-status {
    color: #16a34a;
    font-weight: 600;
}


.failed-status {
    color: #dc2626;
    font-weight: 600;
}


/* MOBILE */

@media (max-width: 768px) {

    .student-sidebar {
        display: none;
    }

    .student-main {
        margin-left: 0;
        width: 100%;

        padding: 22px 15px;
    }

    .assignment-card {
        align-items: flex-start;
        flex-direction: column;

        gap: 18px;
    }

    .start-test-btn {
        width: 100%;
    }

    .assignment-meta {
        flex-direction: column;
        gap: 5px;
    }

}
.overview-card {
    background: white;
    border-radius: 18px;
    padding: 25px;

    box-shadow: 0 4px 20px rgba(0,0,0,0.05);

    height: 100%;
}

.overview-card p {
    color: #6b7280;
    margin-top: 15px;
    margin-bottom: 5px;
}

.overview-card h2 {
    font-weight: 700;
    margin-bottom: 15px;
}

.overview-card a {
    text-decoration: none;
    font-size: 14px;
}

.overview-icon {
    width: 48px;
    height: 48px;

    background: #eff6ff;
    color: #2563eb;

    border-radius: 13px;

    display: flex;
    align-items: center;
    justify-content: center;

    font-size: 21px;
}
/* ========================= */
/* TEST PAGE                 */
/* ========================= */

.test-page {
    background: #f5f7fb;
    min-height: 100vh;
}

.test-topbar {
    height: 75px;

    background: #111827;

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0 40px;
}

.test-top-info {
    display: flex;
    align-items: center;
    gap: 30px;

    color: white;
}

.test-timer {
    display: flex;
    align-items: center;
    gap: 8px;

    font-weight: 600;
}

.test-container {
    max-width: 900px;

    margin: 0 auto;

    padding: 45px 25px;
}

.test-header {
    margin-bottom: 25px;
}

.test-header h2 {
    font-weight: 700;
    margin-top: 5px;
}

.test-progress {
    height: 8px;

    margin-bottom: 30px;

    border-radius: 20px;
}

.question-card {
    background: white;

    padding: 35px;

    border-radius: 20px;

    box-shadow: 0 5px 25px rgba(0,0,0,0.05);
}

.question-number {
    color: #2563eb;

    font-size: 14px;
    font-weight: 600;

    margin-bottom: 15px;
}

.question-card h3 {
    font-size: 22px;
    font-weight: 650;

    margin-bottom: 30px;
}

.answers-container {
    display: flex;
    flex-direction: column;

    gap: 12px;
}

.answer-option {
    display: flex;
    align-items: center;

    gap: 15px;

    padding: 16px 18px;

    border: 2px solid #e5e7eb;

    border-radius: 13px;

    cursor: pointer;

    transition: 0.2s;
}

.answer-option:hover {
    border-color: #93c5fd;
    background: #f8fbff;
}

.answer-option.selected {
    border-color: #2563eb;
    background: #eff6ff;
}

.answer-option input {
    display: none;
}

.answer-letter {
    width: 34px;
    height: 34px;

    border-radius: 9px;

    background: #f3f4f6;

    display: flex;
    align-items: center;
    justify-content: center;

    font-weight: 600;
}

.answer-option.selected .answer-letter {
    background: #2563eb;
    color: white;
}

.test-navigation {
    display: flex;
    justify-content: space-between;

    margin-top: 25px;
}

.test-navigation button {
    padding: 11px 22px;

    border-radius: 11px;
}

.finish-icon {
    width: 65px;
    height: 65px;

    margin: auto;

    border-radius: 50%;

    background: #ecfdf5;
    color: #16a34a;

    display: flex;
    align-items: center;
    justify-content: center;

    font-size: 30px;
}
.language-select {
    width: 80px;
    min-width: 80px;

    border-radius: 10px;

    font-size: 14px;
    font-weight: 600;

    cursor: pointer;

    background-color: white;
}
/* ============================= */
/* TEST COMPLETED                */
/* ============================= */

.result-completed-card {
    width: 100%;
    max-width: 520px;

    background: white;

    padding: 35px 45px;

    border-radius: 24px;

    box-shadow:
        0 10px 40px
        rgba(0, 0, 0, 0.08);
}


.result-logo {
    color: #111827;
}


.completed-icon {
    width: 70px;
    height: 70px;

    margin: 0 auto;

    border-radius: 50%;

    background: #ecfdf5;
    color: #22c55e;

    display: flex;
    align-items: center;
    justify-content: center;

    font-size: 34px;
}


.result-score-circle {
    width: 130px;
    height: 130px;

    border-width: 9px;
}


.result-score-circle span {
    font-size: 34px;
    font-weight: 700;
}
/* =========================================================
   MOBILE NAVIGATION (телефоны): меню не прячется, а
   становится компактной полосой сверху — иначе на телефоне
   не было ни навигации, ни кнопки «Выйти».
   ========================================================= */
@media (max-width: 768px) {
    .student-layout { flex-direction: column; }
    html body .student-sidebar {
        display: flex;
        position: static;
        width: 100%;
        height: auto;
        padding: 12px 15px;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        gap: 4px;
    }
    .student-sidebar .student-logo { width: 100%; font-size: 18px; margin-bottom: 4px; }
    .student-nav { margin-top: 0; display: flex; flex-wrap: wrap; gap: 4px; }
    .student-nav-link { padding: 7px 10px; margin-bottom: 0; font-size: 14px; }
    .student-sidebar .logout-link,
    .student-sidebar .pulse-account-link { margin-top: 0; width: auto; padding: 7px 10px !important; font-size: 14px !important; }

    /* Кабинеты директора, завуча и администратора */
    body > .d-flex.min-vh-100 { flex-direction: column; }
    html body .d-flex.min-vh-100 > aside,
    html body aside.pulse-director-sidebar {
        width: 100% !important;
        min-width: 0 !important;
        padding: 12px 15px !important;
    }
    html body aside nav.nav,
    html body aside .pulse-director-nav {
        flex-direction: row !important;
        flex-wrap: wrap !important;
        gap: 4px !important;
    }
    html body .pulse-director-nav a,
    html body aside nav.nav .nav-link { width: auto !important; min-height: 0 !important; padding: 6px 10px !important; font-size: 14px !important; }
    html body .pulse-director-brand { margin-bottom: 8px !important; font-size: 19px !important; }
    html body aside .pulse-global-logout,
    html body aside .pulse-account-link { width: auto !important; margin-top: 4px !important; }
    main.flex-grow-1 { padding: 16px !important; }
}