:root {
    --mezan-gold: #d6aa42;
    --mezan-gold-deep: #b88927;
    --mezan-gold-soft: #f5e8bd;
    --mezan-ink: #161b22;
    --mezan-ink-soft: #252c35;
    --mezan-cream: #fbf7e9;
    --mezan-paper: #ffffff;
    --mezan-muted: #6f7176;
    --mezan-line: #e7e0d0;
    --mezan-danger: #d33131;
    --mezan-success: #279753;
    --mezan-shadow: 0 14px 34px rgba(31, 35, 39, .12);
}

.student-dashboard-page,
.contact-page,
.course-details-page,
.session-workspace-page {
    min-height: calc(100vh - 72px);
    background: radial-gradient(circle at 12% 10%, rgba(214, 170, 66, .08), transparent 27%), radial-gradient(circle at 88% 92%, rgba(214, 170, 66, .06), transparent 25%), var(--mezan-cream);
    color: var(--mezan-ink);
    font-family: inherit;
}

.content-page-eyebrow {
    display: block;
    margin-bottom: .3rem;
    color: var(--mezan-gold-deep);
    font-size: .88rem;
    font-weight: 800;
    letter-spacing: .02em;
}

/* Student profile */
.student-dashboard-page {
    padding: clamp(1.5rem, 4vw, 3.5rem) 1rem;
}

.student-dashboard-container {
    width: min(1160px, 100%);
    margin-inline: auto;
}

.student-dashboard-hero {
    display: grid;
    grid-template-columns: minmax(275px, 330px) minmax(0, 1fr);
    overflow: hidden;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(22, 27, 34, .07);
    border-radius: 18px;
    background: var(--mezan-paper);
    box-shadow: var(--mezan-shadow);
}

.student-identity-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.45rem 1.25rem;
    border-inline-start: 1px solid #ececec;
    background: linear-gradient(145deg, #fff, #f7f7f7);
    text-align: center;
}

.student-avatar {
    width: 104px;
    height: 104px;
    margin-bottom: .75rem;
    border: 5px solid #f3e4ba;
    border-radius: 50%;
    background: #f8efd9;
    object-fit: cover;
    object-position: center;
    box-shadow: 0 8px 22px rgba(48, 42, 24, .14);
}

.student-identity-card h1 {
    margin: 0;
    font-size: clamp(1.4rem, 2.4vw, 1.85rem);
    font-weight: 900;
}

.student-year {
    display: inline-flex;
    gap: .45rem;
    align-items: center;
    margin: .45rem 0 .85rem;
    color: var(--mezan-muted);
}

.student-profile-action {
    display: inline-flex;
    width: 100%;
    min-height: 44px;
    gap: .55rem;
    align-items: center;
    justify-content: center;
    border-radius: 9px;
    color: #191919;
    font-weight: 800;
    text-decoration: none;
    transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}

    .student-profile-action:hover {
        color: inherit;
        transform: translateY(-2px);
        box-shadow: 0 7px 15px rgba(0, 0, 0, .13);
        filter: brightness(1.02);
    }

.student-profile-action--edit {
    background: linear-gradient(110deg, var(--mezan-gold), #e8bd4e);
}

.student-profile-action--delete {
    background: linear-gradient(110deg, #c92727, #e44343);
    color: #fff;
}

    .student-profile-action--delete:hover {
        color: #fff;
    }

.student-information-card {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-content: center;
    padding: 1.1rem 1.4rem;
}

.student-information-item {
    display: flex;
    min-height: 100px;
    flex-direction: column;
    justify-content: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid #e8e8e8;
    border-inline-start: 1px solid #e8e8e8;
}

    .student-information-item:nth-child(3n) {
        border-inline-start: 0;
    }

    .student-information-item:nth-last-child(-n + 2) {
        border-bottom: 0;
    }

    .student-information-item span {
        margin-bottom: .4rem;
        color: var(--mezan-muted);
        font-size: .93rem;
        font-weight: 700;
    }

    .student-information-item strong {
        overflow-wrap: anywhere;
        font-size: clamp(1rem, 1.8vw, 1.2rem);
        font-weight: 900;
    }

.student-courses-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.student-courses-card {
    min-width: 0;
    padding: 1.25rem;
    border: 1px solid rgba(22, 27, 34, .08);
    border-radius: 16px;
    background: var(--mezan-paper);
    box-shadow: var(--mezan-shadow);
}

    .student-courses-card > header {
        display: flex;
        gap: .7rem;
        align-items: center;
        margin-bottom: 1rem;
        padding-bottom: .85rem;
        border-bottom: 1px solid #e7e7e7;
    }

.student-courses-icon {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 9px;
    background: #f3e5b9;
    color: var(--mezan-gold-deep);
}

.student-courses-card--enrolled .student-courses-icon {
    background: #dff2e6;
    color: var(--mezan-success);
}

.student-courses-card h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 900;
}

.student-course-list {
    display: grid;
    gap: .95rem;
}

.student-course-progress__heading {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    margin-bottom: .4rem;
}

    .student-course-progress__heading span {
        color: var(--mezan-muted);
        font-size: .82rem;
    }

.student-course-progress__track {
    height: 9px;
    overflow: hidden;
    border-radius: 20px;
    background: #ede7d9;
}

    .student-course-progress__track span {
        display: block;
        height: 100%;
        border-radius: inherit;
        background: linear-gradient(90deg, var(--mezan-gold-deep), #e5bd51);
    }

.student-courses-card--enrolled .student-course-progress__track {
    background: #dcece2;
}

    .student-courses-card--enrolled .student-course-progress__track span {
        background: linear-gradient(90deg, #1f8747, #37ad63);
    }

.student-courses-empty {
    display: flex;
    min-height: 120px;
    gap: .6rem;
    align-items: center;
    justify-content: center;
    color: #8b8b8b;
}

.student-profile-toast {
    position: fixed;
    z-index: 1080;
    right: 1rem;
    bottom: 1rem;
    max-width: calc(100% - 2rem);
    box-shadow: var(--mezan-shadow);
}

/* Contact page */
.contact-page {
    padding: clamp(2rem, 5vw, 4.5rem) 1rem;
}

.contact-page__container {
    width: min(900px, 100%);
    margin-inline: auto;
}

.contact-page__heading {
    max-width: 650px;
    margin: 0 auto 2rem;
    text-align: center;
}

    .contact-page__heading h1 {
        margin: 0 0 .45rem;
        font-size: clamp(2rem, 5vw, 3rem);
        font-weight: 900;
    }

    .contact-page__heading p {
        margin: 0;
        color: var(--mezan-muted);
    }

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.contact-card {
    position: relative;
    display: flex;
    min-height: 180px;
    gap: 1rem;
    align-items: flex-start;
    overflow: hidden;
    padding: 1.45rem;
    border: 1px solid #b9b4a8;
    border-radius: 14px;
    background: rgba(255, 255, 255, .88);
}

.contact-card__icon {
    flex: 0 0 auto;
    color: var(--mezan-gold-deep);
    font-size: 2rem;
}

.contact-card h2 {
    margin: 0 0 .55rem;
    font-size: 1.25rem;
    font-weight: 900;
}

.contact-card p {
    margin: 0 0 .45rem;
    color: var(--mezan-muted);
    line-height: 1.7;
}

.contact-card a {
    color: var(--mezan-ink);
    font-weight: 900;
    text-decoration: none;
}

.contact-card__phones {
    display: grid;
    justify-items: end;
    gap: .2rem;
}

.contact-card ul {
    display: grid;
    gap: .7rem;
    margin: 0;
    padding: 0 1.1rem 0 0;
    line-height: 1.65;
}

.contact-card li::marker {
    color: var(--mezan-gold-deep);
}

.contact-card--map {
    align-items: center;
    justify-content: center;
    background: #f4edda;
    text-align: center;
}

.contact-map-lines {
    position: absolute;
    inset: 0;
    opacity: .32;
    background: linear-gradient(32deg, transparent 24%, #d3c294 25%, transparent 27%) 0 0 / 90px 65px, linear-gradient(148deg, transparent 42%, #c8b681 43%, transparent 45%) 15px 5px / 120px 85px, linear-gradient(90deg, transparent 56%, #ddcfac 57%, transparent 59%) 0 0 / 75px 75px;
}

.contact-card__map-content {
    position: relative;
    z-index: 1;
}

    .contact-card__map-content .contact-card__icon {
        margin-bottom: .35rem;
    }

.contact-map-link {
    display: inline-flex;
    min-width: 210px;
    min-height: 45px;
    gap: .55rem;
    align-items: center;
    justify-content: center;
    margin-top: .5rem;
    border-radius: 9px;
    background: linear-gradient(110deg, var(--mezan-gold-deep), var(--mezan-gold));
    color: #fff !important;
    box-shadow: 0 7px 15px rgba(146, 105, 20, .22);
    transition: transform .2s ease;
}

    .contact-map-link:hover {
        transform: translateY(-2px);
    }

/* Course details */
.course-details-page {
    padding: clamp(1.5rem, 4vw, 3.5rem) 1rem;
}

.course-details-container {
    width: min(1060px, 100%);
    margin-inline: auto;
}

.course-summary-card {
    display: grid;
    grid-template-columns: 235px minmax(0, 1fr) minmax(260px, .75fr);
    gap: 1.5rem;
    align-items: center;
    margin-bottom: 1.35rem;
    padding: 1rem;
    border: 1px solid rgba(183, 137, 39, .45);
    border-radius: 15px;
    background: rgba(255, 255, 255, .92);
    box-shadow: 0 9px 25px rgba(31, 35, 39, .1);
}

.course-summary-card__image {
    width: 100%;
    height: 145px;
    border-radius: 11px;
    object-fit: cover;
}

.course-summary-card__content h1 {
    margin: 0 0 .45rem;
    font-size: clamp(1.7rem, 3vw, 2.35rem);
    font-weight: 900;
}

.course-summary-card__content p {
    display: -webkit-box;
    overflow: hidden;
    margin: 0 0 .5rem;
    color: var(--mezan-muted);
    line-height: 1.65;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.course-year {
    display: inline-flex;
    gap: .4rem;
    align-items: center;
    font-weight: 800;
}

.course-admin-statistics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .65rem;
}

.course-statistic {
    display: grid;
    min-height: 92px;
    place-items: center;
    padding: .65rem;
    border: 1px solid var(--mezan-line);
    border-radius: 11px;
    background: #fffefa;
    text-align: center;
}

.course-statistic__icon {
    color: var(--mezan-gold-deep);
    font-size: 1.25rem;
}

.course-statistic span:not(.course-statistic__icon) {
    color: var(--mezan-muted);
    font-size: .8rem;
}

.course-statistic strong {
    font-size: 1.25rem;
}

.course-sessions-panel {
    padding: 1rem;
    border: 1px solid rgba(183, 137, 39, .3);
    border-radius: 15px;
    background: rgba(255, 255, 255, .9);
    box-shadow: 0 9px 25px rgba(31, 35, 39, .08);
}

.course-sessions-panel__header {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

    .course-sessions-panel__header h2 {
        margin: 0;
        font-size: 1.7rem;
        font-weight: 900;
    }

.course-session-list {
    display: grid;
    gap: .75rem;
}

.course-session-card {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border: 1px solid var(--mezan-line);
    border-radius: 11px;
    background: linear-gradient(90deg, rgba(251, 247, 233, .3), #fff);
}

.course-session-card__details h3 {
    margin: 0;
    font-size: 1.08rem;
    font-weight: 900;
}

.course-session-card__details p {
    margin: .25rem 0 0;
    color: var(--mezan-muted);
    font-size: .82rem;
}

.course-session-card__badges {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin-top: .6rem;
}

.course-badge {
    padding: .28rem .65rem;
    border-radius: 20px;
    font-size: .75rem;
    font-weight: 800;
}

.course-badge--info {
    background: #dcecfb;
    color: #14639b;
}

.course-badge--danger {
    background: #fde1e1;
    color: #ad2323;
}

.course-badge--gold {
    background: var(--mezan-gold-soft);
    color: #775814;
}

.course-badge--success {
    background: #dff2e6;
    color: #18753c;
}

.course-session-card__actions {
    display: flex;
    flex: 0 0 auto;
    gap: .5rem;
}

.course-action {
    display: inline-flex;
    min-height: 39px;
    gap: .4rem;
    align-items: center;
    justify-content: center;
    padding: .45rem 1rem;
    border: 0;
    border-radius: 8px;
    font-weight: 800;
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease;
}

    .course-action:hover {
        color: inherit;
        transform: translateY(-1px);
        box-shadow: 0 6px 13px rgba(0, 0, 0, .14);
    }

.course-action--gold {
    background: linear-gradient(110deg, var(--mezan-gold-deep), #e4ba48);
    color: #171717;
}

.course-action--dark {
    background: var(--mezan-ink);
    color: #fff;
}

    .course-action--dark:hover,
    .course-action--danger:hover {
        color: #fff;
    }

.course-action--danger {
    background: linear-gradient(110deg, #c82525, #e24444);
    color: #fff;
}

.course-action--code {
    border: 1px solid #dab24e;
    background: #fbf0cc;
    color: #765616;
}

.course-empty-state {
    display: grid;
    min-height: 190px;
    place-items: center;
    align-content: center;
    gap: .6rem;
    border: 1px dashed #d6ccb6;
    border-radius: 11px;
    color: var(--mezan-muted);
    text-align: center;
}

    .course-empty-state i {
        color: var(--mezan-gold-deep);
        font-size: 2rem;
    }

    .course-empty-state p {
        margin: 0;
    }

/* Session workspace */
.session-workspace-page {
    padding: clamp(1.5rem, 4vw, 3rem) 1rem;
}

.session-workspace-container {
    display: grid;
    width: min(1180px, 100%);
    grid-template-columns: minmax(310px, 390px) minmax(0, 1fr);
    gap: clamp(1.25rem, 3vw, 2.5rem);
    align-items: start;
    margin-inline: auto;
}

.session-sidebar {
    min-width: 0;
    overflow: hidden;
    border: 1px solid rgba(22, 27, 34, .08);
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--mezan-shadow);
}

.session-sidebar__header {
    padding: 1.35rem 1.35rem .8rem;
}

    .session-sidebar__header h1 {
        margin: 0;
        overflow-wrap: anywhere;
        font-size: 1.35rem;
        font-weight: 900;
    }

    .session-sidebar__header p {
        margin: .4rem 0 0;
        color: var(--mezan-muted);
        font-size: .85rem;
    }

.session-watch-status {
    display: grid;
    gap: .35rem;
    margin: 0 1.25rem 1rem;
    padding: .75rem;
    border: 1px solid var(--mezan-line);
    border-radius: 9px;
    background: #fbfaf6;
    text-align: center;
}

    .session-watch-status > span {
        font-weight: 800;
    }

    .session-watch-status small {
        color: var(--mezan-muted);
        line-height: 1.55;
    }

    .session-watch-status #watchStatusMessage {
        padding: .4rem;
        border-radius: 6px;
    }

.session-materials {
    margin: 0 1rem 1rem;
}

    .session-materials .accordion-item {
        overflow: hidden;
        margin-bottom: .65rem;
        border: 1px solid var(--mezan-line);
        border-radius: 10px !important;
    }

    .session-materials .accordion-button {
        gap: .55rem;
        border: 0;
        background: #fff;
        color: var(--mezan-ink);
        font-weight: 900;
        box-shadow: none;
    }

        .session-materials .accordion-button:not(.collapsed) {
            background: linear-gradient(110deg, var(--mezan-gold-deep), #e0b54b);
            color: #181818;
        }

        .session-materials .accordion-button::after {
            margin-right: auto;
            margin-left: 0;
        }

    .session-materials .accordion-body {
        padding: .7rem;
    }

.session-material-list {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: .55rem;
}

.session-material-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    min-width: 0;
    gap: .6rem;
    align-items: start;
    padding: .65rem;
    border-radius: 8px;
    background: #f5f5f5;
}

.session-material-item__name {
    display: flex;
    width: 100%;
    min-width: 0;
    gap: .45rem;
    align-items: flex-start;
}

    .session-material-item__name > span {
        display: grid;
        width: 26px;
        height: 26px;
        flex: 0 0 auto;
        place-items: center;
        border-radius: 50%;
        background: #fff;
        color: var(--mezan-gold-deep);
        font-size: .8rem;
        font-weight: 900;
    }

    .session-material-item__name strong {
        min-width: 0;
        flex: 1;
        font-size: .88rem;
        line-height: 1.65;
        white-space: normal;
        overflow-wrap: anywhere;
    }

.session-material-item__actions {
    display: flex;
    width: 100%;
    min-width: 0;
    flex-wrap: wrap;
    gap: .35rem;
}

    .session-material-item__actions .session-button {
        min-width: 0;
        flex: 1 1 130px;
        white-space: normal;
        overflow-wrap: anywhere;
        text-align: center;
    }

.session-button {
    display: inline-flex;
    min-height: 35px;
    gap: .35rem;
    align-items: center;
    justify-content: center;
    padding: .4rem .75rem;
    border: 0;
    border-radius: 7px;
    font-size: .82rem;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    transition: transform .18s ease, filter .18s ease;
}

    .session-button:hover {
        color: inherit;
        transform: translateY(-1px);
        filter: brightness(1.03);
    }

.session-button--gold {
    background: linear-gradient(110deg, var(--mezan-gold-deep), #e4ba49);
    color: #181818;
}

.session-button--danger {
    background: linear-gradient(110deg, #c62727, #e24646);
    color: #fff;
}

    .session-button--danger:hover {
        color: #fff;
    }

.session-material-empty {
    margin: 0;
    padding: 1rem;
    color: var(--mezan-muted);
    text-align: center;
}

.session-admin-actions {
    display: grid;
    gap: .65rem;
    padding: 0 1rem 1rem;
}

    .session-admin-actions .session-button {
        min-height: 42px;
    }

.session-stage {
    min-width: 0;
}

.session-player-shell {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    border-radius: 17px;
    background: #030303;
    box-shadow: 0 18px 35px rgba(10, 10, 10, .24);
}

    .session-player-shell .video-wrapper,
    .session-player-shell #iframePlayer {
        width: 100%;
        height: 100%;
        min-height: 0;
        margin: 0;
        border-radius: 0;
        box-shadow: none;
        aspect-ratio: auto;
    }

        .session-player-shell #iframePlayer:empty {
            display: none;
        }

.session-player-placeholder {
    display: grid;
    width: 100%;
    height: 100%;
    place-items: center;
    align-content: center;
    gap: .8rem;
    color: #fff;
}

    .session-player-placeholder span {
        display: grid;
        width: 64px;
        height: 64px;
        place-items: center;
        border-radius: 50%;
        background: radial-gradient(circle at 35% 30%, #5a5a5a, #1c1c1c);
        font-size: 1.3rem;
    }

    .session-player-placeholder p {
        margin: 0;
        font-size: 1.05rem;
        font-weight: 800;
    }

.session-player-shell iframe,
.session-player-shell video,
.session-player-shell audio,
.session-player-shell embed,
.session-player-shell object {
    width: 100% !important;
    height: 100% !important;
}

.session-description {
    margin-top: 1rem;
    padding: 1rem 1.2rem;
    border: 1px solid var(--mezan-line);
    border-radius: 12px;
    background: #fff;
}

    .session-description h2 {
        margin: 0 0 .5rem;
        font-size: 1.1rem;
        font-weight: 900;
    }

    .session-description p {
        margin: 0;
        color: var(--mezan-muted);
        line-height: 1.7;
    }

.session-back-link {
    display: flex;
    width: min(220px, 100%);
    min-height: 43px;
    gap: .45rem;
    align-items: center;
    justify-content: center;
    margin: 1.25rem auto 0;
    border-radius: 8px;
    background: var(--mezan-ink);
    color: #fff;
    font-weight: 800;
    text-decoration: none;
    transition: transform .18s ease;
}

    .session-back-link:hover {
        color: #fff;
        transform: translateY(-2px);
    }

@media (max-width: 920px) {
    .student-dashboard-hero {
        grid-template-columns: 260px minmax(0, 1fr);
    }

    .student-information-card {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .student-information-item:nth-child(3n) {
        border-inline-start: 1px solid #e8e8e8;
    }

    .student-information-item:nth-child(2n) {
        border-inline-start: 0;
    }

    .course-summary-card {
        grid-template-columns: 200px minmax(0, 1fr);
    }

    .course-admin-statistics {
        grid-column: 1 / -1;
    }

    .session-workspace-container {
        grid-template-columns: minmax(0, 1fr);
    }

    .session-stage {
        grid-row: 1;
    }
}

@media (max-width: 720px) {
    .student-dashboard-hero,
    .student-courses-grid,
    .contact-grid,
    .course-summary-card {
        grid-template-columns: 1fr;
    }

    .student-identity-card {
        border-bottom: 1px solid #ececec;
        border-inline-start: 0;
    }

    .student-information-card {
        grid-template-columns: 1fr;
        padding: .8rem;
    }

    .student-information-item,
    .student-information-item:nth-child(n) {
        min-height: auto;
        border-bottom: 1px solid #e8e8e8;
        border-inline-start: 0;
    }

        .student-information-item:last-child {
            border-bottom: 0;
        }

    .course-summary-card__image {
        height: 210px;
    }

    .course-session-card {
        align-items: stretch;
        flex-direction: column;
    }

    .course-session-card__actions {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

        .course-session-card__actions:has(.course-action:only-child) {
            grid-template-columns: 1fr;
        }
}

@media (max-width: 768px) {
    .session-material-item__actions {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
    }

    .session-material-item__actions .session-button {
        width: 100%;
        min-height: 44px;
    }
}

@media (max-width: 480px) {
    .student-course-progress__heading,
    .course-sessions-panel__header {
        align-items: stretch;
        flex-direction: column;
    }

    .student-course-progress__heading {
        gap: .2rem;
    }

    .course-sessions-panel__header .course-action {
        width: 100%;
    }

    .course-session-card__actions {
        grid-template-columns: 1fr;
    }

}