* {
    box-sizing: border-box;
}

body {
    margin: 0;
    direction: rtl;
    font-family: Arial, Helvetica, sans-serif;
    background:
        radial-gradient(circle at top right, rgba(0, 255, 213, 0.14), transparent 34%),
        radial-gradient(circle at bottom left, rgba(124, 77, 255, 0.16), transparent 34%),
        #05070d;
    color: #f5f7fb;
    min-height: 100vh;
}

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

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(18px);
    background: rgba(5, 7, 13, 0.78);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
}

.logo {
    font-size: 22px;
    font-weight: 900;
    letter-spacing: -0.04em;
}

.logo span {
    color: #00ffd5;
}

.nav {
    display: flex;
    gap: 14px;
    align-items: center;
}

.nav a,
.btn {
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    padding: 12px 18px;
    border-radius: 999px;
    color: #fff;
    font-weight: 800;
    cursor: pointer;
    transition: 0.2s ease;
}

.nav a:hover,
.btn:hover {
    transform: translateY(-1px);
    border-color: rgba(0, 255, 213, 0.5);
    box-shadow: 0 0 28px rgba(0, 255, 213, 0.12);
}

.btn-primary {
    background: linear-gradient(135deg, #00ffd5, #00a3ff);
    color: #021014;
    border: 0;
}

.hero {
    padding: 74px 0 38px;
    text-align: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 999px;
    background: rgba(0, 255, 213, 0.08);
    border: 1px solid rgba(0, 255, 213, 0.24);
    color: #bdfef3;
    font-weight: 800;
    margin-bottom: 18px;
}

h1 {
    margin: 0 auto;
    max-width: 900px;
    font-size: clamp(38px, 7vw, 82px);
    line-height: 0.95;
    letter-spacing: -0.07em;
}

.hero p {
    margin: 22px auto 0;
    max-width: 740px;
    color: #b8c1d5;
    font-size: 20px;
    line-height: 1.7;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 34px 0;
}

.stat-card,
.card,
.form-card {
    border: 1px solid rgba(255, 255, 255, 0.10);
    background: rgba(255, 255, 255, 0.055);
    border-radius: 28px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

.stat-card {
    padding: 24px;
    text-align: center;
}

.stat-card strong {
    display: block;
    color: #00ffd5;
    font-size: 34px;
    line-height: 1;
}

.stat-card span {
    display: block;
    color: #aeb8ca;
    margin-top: 10px;
    font-weight: 700;
}

.filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 24px 0 34px;
}

.filter-btn {
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    padding: 10px 15px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 800;
}

.filter-btn.active {
    background: #00ffd5;
    color: #031014;
    border-color: #00ffd5;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    padding-bottom: 70px;
}

.video-card {
    overflow: hidden;
}

.embed-box {
    min-height: 440px;
    background: #0b0f19;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.embed-box iframe {
    max-width: 100%;
}

.video-content {
    padding: 22px;
}

.video-content h3 {
    margin: 0 0 8px;
    font-size: 22px;
    letter-spacing: -0.03em;
}

.meta {
    color: #9eabc3;
    font-size: 14px;
    margin-bottom: 14px;
}

.desc {
    color: #c7d0e2;
    line-height: 1.65;
    min-height: 50px;
}

.video-stats {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.video-stats span {
    padding: 9px 11px;
    border-radius: 14px;
    background: rgba(0, 255, 213, 0.08);
    border: 1px solid rgba(0, 255, 213, 0.16);
    color: #cffff8;
    font-weight: 800;
}

.cta {
    text-align: center;
    padding: 44px 20px;
    margin-bottom: 60px;
}

.cta h2 {
    font-size: 42px;
    margin: 0 0 16px;
    letter-spacing: -0.05em;
}

.cta p {
    color: #b8c1d5;
    font-size: 18px;
    margin-bottom: 22px;
}

.login-wrap {
    width: min(460px, calc(100% - 32px));
    margin: 70px auto;
}

.form-card {
    padding: 28px;
}

.form-card h1 {
    font-size: 34px;
    margin-bottom: 22px;
    text-align: right;
}

.field {
    margin-bottom: 16px;
}

.field label {
    display: block;
    margin-bottom: 8px;
    color: #cfd7e7;
    font-weight: 800;
}

input,
textarea,
select {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
    border-radius: 16px;
    padding: 14px 16px;
    font-size: 16px;
    outline: none;
}

textarea {
    min-height: 110px;
    resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
    border-color: rgba(0, 255, 213, 0.65);
}

.admin-page {
    padding: 34px 0 70px;
}

.admin-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 22px;
}

.admin-head h1 {
    font-size: 42px;
    margin: 0;
    text-align: right;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}

th,
td {
    text-align: right;
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: #dce5f4;
}

th {
    color: #00ffd5;
    font-size: 14px;
}

.actions {
    display: flex;
    gap: 8px;
}

.small-btn {
    padding: 8px 12px;
    border-radius: 12px;
    border: 0;
    cursor: pointer;
    font-weight: 900;
}

.edit {
    background: #00ffd5;
    color: #031014;
}

.delete {
    background: #ff4d6d;
    color: #fff;
}

.error {
    background: rgba(255, 77, 109, 0.12);
    color: #ffd6de;
    border: 1px solid rgba(255, 77, 109, 0.35);
    padding: 14px 16px;
    border-radius: 16px;
    margin-bottom: 16px;
}

.success {
    background: rgba(0, 255, 213, 0.10);
    color: #d2fff8;
    border: 1px solid rgba(0, 255, 213, 0.28);
    padding: 14px 16px;
    border-radius: 16px;
    margin-bottom: 16px;
}

.checkbox-row {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    margin: 18px 0;
}

.checkbox-row label {
    display: inline-flex;
    gap: 8px;
    align-items: center;
    font-weight: 800;
}

.checkbox-row input {
    width: auto;
}

.embed-fallback {
    padding: 28px;
    text-align: center;
}

.embed-fallback p {
    color: #c7d0e2;
}

.embed-fallback a {
    color: #00ffd5;
    font-weight: 900;
}

@media (max-width: 980px) {
    .stats,
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .embed-box {
        min-height: 380px;
    }
}

@media (max-width: 640px) {
    .topbar-inner,
    .admin-head {
        flex-direction: column;
        align-items: stretch;
        padding: 14px 0;
    }

    .nav {
        justify-content: center;
        flex-wrap: wrap;
    }

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

    .hero {
        padding-top: 42px;
    }

    .hero p {
        font-size: 17px;
    }

    .embed-box {
        min-height: 340px;
    }
}