* {
    box-sizing: border-box;
}

:root {
    color-scheme: light;
    --bg: #f6f7f9;
    --surface: #ffffff;
    --surface-2: #f0f2f5;
    --border: #e2e5e9;
    --text: #20242a;
    --muted: #69717d;
    --accent: #315d9b;
    --accent-hover: #274c80;
    --danger: #b42318;
    --success: #16794c;
    --shadow: 0 8px 30px rgba(20, 25, 35, .07);
}

html[data-theme="dark"] {
    color-scheme: dark;
    --bg: #111315;
    --surface: #191c20;
    --surface-2: #22262b;
    --border: #30353b;
    --text: #eef0f2;
    --muted: #a4abb4;
    --accent: #82a9df;
    --accent-hover: #a0bde8;
    --danger: #ff8a82;
    --success: #62c394;
    --shadow: 0 8px 30px rgba(0, 0, 0, .25);
}

html {
    min-height: 100%;
    background: var(--bg);
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--text);
    background: var(--bg);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    color: var(--accent);
}

.top-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    background: color-mix(in srgb, var(--surface) 94%, transparent);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.nav-inner {
    width: min(1120px, calc(100% - 32px));
    min-height: 64px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
}

.brand-mark,
.login-icon {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    color: #fff;
    background: var(--accent);
    font-weight: 800;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
    color: var(--muted);
    font-size: 14px;
}

.nav-links a:hover {
    color: var(--text);
}

.nav-user {
    color: var(--text);
}

.nav-logout {
    color: var(--danger) !important;
}

.nav-toggle {
    display: none;
    border: 0;
    background: transparent;
    padding: 8px;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 23px;
    height: 2px;
    margin: 5px 0;
    background: var(--text);
}

.main-content {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    flex: 1;
    padding: 42px 0 65px;
}

.site-footer {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 22px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    color: var(--muted);
    font-size: 13px;
    border-top: 1px solid var(--border);
}

.footer-main {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    align-items: center;
}

.footer-main a {
    color: var(--muted);
}

.footer-main a:hover {
    color: var(--accent);
}

.theme-toggle {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 0 11px;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font: inherit;
    font-size: 12px;
}

.theme-toggle:hover {
    border-color: var(--accent);
}

.auth-page {
    min-height: calc(100vh - 180px);
    display: grid;
    place-items: center;
}

.login-card {
    width: min(410px, 100%);
    padding: 34px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.login-icon {
    margin-bottom: 22px;
}

.eyebrow {
    margin: 0 0 7px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: .08em;
    font-size: 11px;
    font-weight: 750;
}

.login-card h1,
.page-header h1,
.detail-header h1 {
    margin: 0 0 8px;
}

.login-card h1 {
    font-size: 30px;
}

.login-description,
.page-description {
    color: var(--muted);
    line-height: 1.55;
}

.login-form {
    display: grid;
    gap: 8px;
    margin-top: 26px;
}

.login-form label {
    margin-top: 8px;
    color: var(--text);
    font-size: 13px;
    font-weight: 650;
}

input {
    width: 100%;
    min-height: 45px;
    padding: 0 12px;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: none;
    font: inherit;
}

input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent);
}

.password-wrap {
    position: relative;
}

.password-wrap input {
    padding-right: 85px;
}

.password-toggle {
    position: absolute;
    top: 50%;
    right: 8px;
    transform: translateY(-50%);
    border: 0;
    color: var(--accent);
    background: transparent;
    cursor: pointer;
    font-size: 12px;
    font-weight: 650;
}

.button {
    min-height: 43px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0 16px;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    font: inherit;
    font-size: 14px;
    font-weight: 700;
}

.button-primary {
    color: #fff;
    background: var(--accent);
}

.button-primary:hover {
    color: #fff;
    background: var(--accent-hover);
}

.button-full {
    width: 100%;
    margin-top: 14px;
}

.alert {
    margin-top: 20px;
    padding: 11px 13px;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.45;
}

.alert-danger {
    color: var(--danger);
    background: color-mix(in srgb, var(--danger) 9%, var(--surface));
    border: 1px solid color-mix(in srgb, var(--danger) 25%, var(--border));
}

.alert-success {
    color: var(--success);
    background: color-mix(in srgb, var(--success) 9%, var(--surface));
    border: 1px solid color-mix(in srgb, var(--success) 25%, var(--border));
}

.page-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 25px;
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: clamp(28px, 5vw, 38px);
}

.count-badge {
    padding: 7px 11px;
    color: var(--muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 12px;
    white-space: nowrap;
}

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

.video-card {
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 11px;
    box-shadow: var(--shadow);
}

.video-card:hover {
    border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}

.video-thumbnail {
    position: relative;
    height: 145px;
    overflow: hidden;
    display: grid;
    place-items: center;
    background: var(--surface-2);
}

.video-thumbnail-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-thumbnail::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .25);
}

.play-icon {
    position: relative;
    z-index: 2;
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    padding-left: 3px;
    border-radius: 50%;
    color: #fff;
    background: var(--accent);
    font-size: 16px;
}

.video-card-body {
    padding: 18px;
}

.video-date {
    margin-bottom: 7px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
}

.video-card h2 {
    min-height: 52px;
    margin: 0 0 17px;
    font-size: 17px;
    line-height: 1.4;
}

.empty-state {
    padding: 70px 20px;
    text-align: center;
    border: 1px dashed var(--border);
    border-radius: 11px;
    background: var(--surface);
}

.empty-icon {
    margin-bottom: 12px;
    color: var(--accent);
    font-size: 27px;
}

.empty-state p {
    color: var(--muted);
}

.video-detail {
    max-width: 960px;
    margin: 0 auto;
}

.back-link {
    display: inline-block;
    margin-bottom: 22px;
    color: var(--muted);
    font-size: 14px;
}

.detail-header {
    margin-bottom: 22px;
}

.detail-header h1 {
    font-size: clamp(27px, 5vw, 38px);
}

.player-card {
    overflow: hidden;
    background: #000;
    border: 1px solid var(--border);
    border-radius: 11px;
    box-shadow: var(--shadow);
}

.video-player {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
}

.video-player iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.external-video {
    min-height: 350px;
    display: grid;
    place-items: center;
    align-content: center;
    text-align: center;
    padding: 35px;
}

.external-video p {
    color: #aaa;
}

@media (max-width: 850px) {
    .video-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 650px) {
    .main-content {
        padding-top: 28px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: 64px;
        left: 16px;
        right: 16px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 8px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 10px;
        box-shadow: var(--shadow);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a,
    .nav-user {
        padding: 11px;
    }

    .page-header {
        align-items: start;
        flex-direction: column;
    }

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

    .video-card h2 {
        min-height: auto;
    }

    .login-card {
        padding: 27px 22px;
    }

    .site-footer {
        align-items: flex-start;
        flex-direction: column;
    }
}


.nav-user small {
    display: block;
    margin-top: 2px;
    color: var(--muted);
    font-size: 10px;
    font-weight: 500;
}

.admin-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 18px;
}

.admin-card {
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 11px;
    box-shadow: var(--shadow);
}

.admin-card h2 {
    margin: 0 0 20px;
    font-size: 19px;
}

.admin-form {
    display: grid;
    gap: 8px;
}

.admin-form label {
    margin-top: 8px;
    font-size: 13px;
    font-weight: 650;
}

select {
    width: 100%;
    min-height: 45px;
    padding: 0 12px;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
}

.admin-video-list {
    display: grid;
    gap: 9px;
}

.admin-video-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.admin-video-row > div {
    min-width: 0;
}

.admin-video-row strong,
.admin-video-row span {
    display: block;
}

.admin-video-row strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.admin-video-row span,
.muted {
    margin-top: 4px;
    color: var(--muted);
    font-size: 12px;
}

.button-secondary {
    color: var(--text);
    background: var(--surface-2);
    border-color: var(--border);
    white-space: nowrap;
}

.button-secondary:hover {
    color: var(--text);
    border-color: var(--accent);
}

@media (max-width: 800px) {
    .admin-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 650px) {
    .admin-video-row {
        align-items: stretch;
        flex-direction: column;
    }
}


.role-info {
    display: grid;
    gap: 12px;
}

.role-info > div {
    padding: 13px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface-2);
}

.role-info strong,
.role-info span {
    display: block;
}

.role-info strong {
    margin-bottom: 4px;
}

.role-info span {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.45;
}

.admin-users-card {
    margin-top: 18px;
}

.admin-user-list {
    display: grid;
    gap: 12px;
}

.admin-user-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px 15px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 9px;
}

.admin-user-form {
    display: flex;
    gap: 8px;
    min-width: 0;
}

.admin-user-main {
    flex: 1;
    display: grid;
    grid-template-columns: minmax(130px, 1fr) 130px minmax(170px, 1fr);
    gap: 8px;
}

.admin-user-main input,
.admin-user-main select {
    min-width: 0;
}

.admin-user-actions {
    display: flex;
    align-items: center;
}

.admin-user-meta {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    color: var(--muted);
    font-size: 12px;
}

.delete-user-form {
    grid-column: 2;
    grid-row: 1;
}

.button-danger {
    color: #fff;
    background: var(--danger);
    border-color: var(--danger);
}

.button-danger:hover {
    color: #fff;
    filter: brightness(.92);
}

@media (max-width: 850px) {
    .admin-user-row {
        grid-template-columns: 1fr;
    }

    .delete-user-form {
        grid-column: auto;
        grid-row: auto;
    }

    .admin-user-form {
        flex-direction: column;
    }

    .admin-user-main {
        grid-template-columns: 1fr;
    }

    .admin-user-actions .button {
        width: 100%;
    }

    .delete-user-form .button {
        width: 100%;
    }
}

.archive-years{display:grid;gap:18px}.archive-year h2{margin-top:0}.month-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.month-card{display:flex;flex-direction:column;gap:4px;padding:13px;border:1px solid var(--border);border-radius:8px;background:var(--surface-2)}.month-card span,.month-card.disabled{color:var(--muted);font-size:12px}.month-card:hover{border-color:var(--accent)}.month-card.disabled{opacity:.55}.archive-results,.video-public-card{margin-top:18px}.admin-link-list{display:grid;gap:12px}.admin-link-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px 18px;padding:15px;border:1px solid var(--border);border-radius:9px}.admin-link-row>div:first-child strong,.admin-link-row>div:first-child span{display:block}.admin-link-row span{color:var(--muted);font-size:12px;margin-top:4px}.click-count{text-align:center;min-width:90px;padding:4px 12px;border-left:1px solid var(--border)}.click-count strong,.click-count span{display:block}.click-count strong{font-size:20px}.click-count span{font-size:11px}.admin-link-row .public-link-row{grid-column:1/-1}.bulk-toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:15px}.bulk-toolbar label{display:flex;gap:8px;align-items:center;font-weight:650}.bulk-toolbar input,.bulk-video-row input{width:auto;min-height:auto}.bulk-video-list{display:grid;gap:7px}.bulk-video-row{display:flex;align-items:center;gap:11px;padding:12px;border:1px solid var(--border);border-radius:8px;cursor:pointer}.bulk-video-row:hover{border-color:var(--accent)}.bulk-video-row span{display:flex;flex-direction:column;gap:3px}.bulk-video-row small{color:var(--muted)}
@media(max-width:700px){.month-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-link-row{grid-template-columns:1fr}.click-count{text-align:left;border-left:0;border-top:1px solid var(--border);padding:10px 0 0}.bulk-toolbar{align-items:stretch;flex-direction:column}}

.years-section{margin-top:42px}
.section-heading{margin-bottom:16px}
.section-heading h2{margin:0}
.year-button-grid{display:flex;flex-wrap:wrap;gap:10px}
.year-button{display:inline-flex;align-items:center;justify-content:center;min-width:105px;padding:13px 20px;border:1px solid var(--border);border-radius:9px;background:var(--surface-2);font-size:17px;font-weight:700;text-decoration:none}
.year-button:hover{border-color:var(--accent);transform:translateY(-1px)}
.year-page{max-width:1200px;margin:0 auto}
.year-month-list{display:grid;gap:34px}
.month-section{padding-top:4px}
.month-heading{display:flex;align-items:baseline;justify-content:space-between;gap:15px;margin-bottom:14px;border-bottom:1px solid var(--border);padding-bottom:10px}
.month-heading h2{margin:0}
.month-heading span{color:var(--muted);font-size:13px}
@media(max-width:600px){
 .year-button{min-width:calc(50% - 5px)}
 .month-heading{align-items:flex-start;flex-direction:column;gap:4px}
}