:root {
    --blue: #216bff;
    --blue-dark: #071833;
    --blue-soft: #eef4ff;
    --white: #ffffff;
    --gray: #f5f7fb;
    --text: #10213f;
    --border: #dce6f5;
    --danger: #dc2626;
    --success: #15803d;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
    color: var(--text);
}

.header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 14px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo img {
    height: 75px;
    display: block;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 22px;
    flex-wrap: wrap;
}

.nav a,
.btn-admin {
    color: var(--blue-dark);
    text-decoration: none;
    font-weight: 700;
}

.nav a:hover,
.btn-admin:hover {
    color: var(--blue);
}

.container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 24px;
}

.hero {
    background: var(--blue);
    color: var(--white);
    border-radius: 28px;
    padding: 55px 42px;
    margin-bottom: 32px;
    box-shadow: 0 24px 60px rgba(33, 107, 255, 0.22);
}

.hero h1 {
    margin: 0 0 12px;
    font-size: 42px;
    color: var(--white);
}

.hero p {
    margin: 0;
    font-size: 18px;
    opacity: 0.9;
}

.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 32px;
    box-shadow: 0 20px 50px rgba(7, 24, 51, 0.08);
    margin-bottom: 28px;
}

.public-content img {
    max-width: 100%;
    height: auto;
}

h1,
h2 {
    color: var(--blue-dark);
}

label {
    font-weight: 700;
    display: block;
    margin-bottom: 8px;
}

input,
textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px 16px;
    font-size: 16px;
    outline: none;
    background: var(--gray);
}

input:focus,
textarea:focus {
    border-color: var(--blue);
    background: var(--white);
}

button,
.btn {
    display: inline-block;
    background: var(--blue);
    color: var(--white);
    border: 0;
    border-radius: 999px;
    padding: 12px 22px;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    font-size: 14px;
}

button:hover,
.btn:hover {
    background: var(--blue-dark);
}

.btn-secondary {
    background: var(--blue-soft);
    color: var(--blue-dark);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
    color: var(--blue-dark);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

.btn-danger:hover {
    background: #991b1b;
}

.alert {
    padding: 14px 18px;
    border-radius: 14px;
    margin-bottom: 20px;
    font-weight: 700;
}

.alert.success {
    background: #e8f8ef;
    color: var(--success);
}

.alert.error {
    background: #ffecec;
    color: #9b1c1c;
}

.help-text {
    font-size: 14px;
    color: #5b6b84;
    margin-top: 8px;
}

.checkbox-row {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    margin: 20px 0;
    text-align: left;
}

.checkbox-row label {
    margin: 0;
}

.checkbox-row input {
    width: auto;
    margin: 0;
}

.upload-box {
    margin-top: 25px;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: 18px;
    overflow: hidden;
}

th {
    background: var(--blue-dark);
    color: var(--white);
    text-align: left;
    padding: 14px;
}

td {
    padding: 14px;
    border-bottom: 1px solid var(--border);
}

td a {
    color: var(--blue);
    font-weight: 700;
}

.actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.actions form {
    margin: 0;
}

.footer {
    margin-top: 60px;
    background: var(--blue-dark);
    color: var(--white);
    padding: 30px 40px;
    text-align: center;
}

.footer small {
    opacity: 0.75;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.login-card {
    width: 100%;
    max-width: 430px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 38px;
    box-shadow: 0 24px 60px rgba(7, 24, 51, 0.12);
    text-align: center;
}

.login-logo {
    height: 90px;
    margin-bottom: 20px;
}

.login-card p {
    margin-bottom: 24px;
    color: #5b6b84;
}

.login-card a {
    color: var(--blue);
    font-weight: 700;
}

@media (max-width: 700px) {
    .header {
        flex-direction: column;
        gap: 18px;
        padding: 18px 24px;
    }

    .nav {
        justify-content: center;
        gap: 14px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .card {
        padding: 24px;
    }
}