:root {
    --bg: #f4fbff;
    --ink: #173042;
    --primary: #0b5f8d;
    --accent: #0fa3a3;
    --line: #d2e9f6;
    --card: #ffffff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background: radial-gradient(circle at top right, #e7f8ff 0%, #f8fdff 48%, #ffffff 100%);
    color: var(--ink);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: min(1080px, 93%);
    margin: 0 auto;
}

.academy-header {
    background: linear-gradient(125deg, #0e3854, #0b5f8d 60%, #0fa3a3);
    color: #fff;
    padding: 0.9rem 0;
    box-shadow: 0 8px 22px rgba(9, 65, 95, 0.24);
}

.header-wrap {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    flex-wrap: wrap;
}

.header-wrap > div {
    min-width: 0;
}

.academy-kicker {
    margin: 0;
    font-size: 0.75rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.academy-header h1 {
    margin: 0;
    font-size: 1.35rem;
}

.academy-header h1 a,
.academy-header nav a {
    color: #eaf7ff;
    text-decoration: none;
}

.academy-header nav {
    display: flex;
    gap: 0.45rem;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    min-width: 0;
    max-width: 100%;
}

.academy-header nav a {
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    white-space: nowrap;
}

.academy-header nav a:hover {
    background: rgba(255, 255, 255, 0.2);
}

.flash {
    margin: 0.9rem 0;
    border-radius: 10px;
    padding: 0.8rem 1rem;
}

.flash.success {
    background: #e7f8eb;
    border: 1px solid #93d3a1;
}

.flash.error {
    background: #fff1f1;
    border: 1px solid #ef9f9f;
}

.hero {
    margin-top: 1rem;
    background: linear-gradient(145deg, #0f6c94, #0fa3a3);
    color: #fff;
    border-radius: 16px;
    padding: 1.15rem 1.2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin: 1rem 0 2rem;
}

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 8px 20px rgba(19, 67, 89, 0.07);
}

.card h3 {
    margin-top: 0;
    margin-bottom: 0.45rem;
    color: #0f4f73;
}

.meta {
    font-size: 0.86rem;
    color: #3f6177;
}

.btn {
    display: inline-block;
    border: none;
    border-radius: 9px;
    padding: 0.5rem 0.8rem;
    text-decoration: none;
    cursor: pointer;
    font-weight: 700;
}

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

.btn-soft {
    background: #f2fbff;
    border: 1px solid #cce7f3;
    color: #0d678f;
}

.toolbar {
    margin-top: 0.9rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

label {
    display: block;
    margin-top: 0.65rem;
    font-weight: 700;
}

input,
textarea,
select {
    width: 100%;
    border: 1px solid #bfd9e8;
    border-radius: 8px;
    padding: 0.6rem;
    margin-top: 0.3rem;
    font: inherit;
}

textarea {
    min-height: 130px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

th,
td {
    padding: 0.68rem;
    border-bottom: 1px solid #e2eff6;
    text-align: left;
}

th {
    background: #edf8ff;
    color: #134d70;
}

.table-wrap {
    border: 1px solid #d7e9f4;
    border-radius: 12px;
    overflow: auto;
    margin-top: 1rem;
}

.lesson {
    border-left: 4px solid #0fa3a3;
    margin-bottom: 0.8rem;
}

.progress-wrap {
    margin-top: 0.8rem;
}

.progress-meta {
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
}

.progress-bar {
    width: 100%;
    height: 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.35);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, #8ef5d5, #fff3a5);
}

.video-wrap {
    margin: 0.7rem 0;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #d5e9f5;
    background: #ebf7ff;
}

.video-wrap iframe {
    width: 100%;
    min-height: 340px;
    border: 0;
    display: block;
}

.video-wrap video {
    width: 100%;
    display: block;
    background: #000;
}

.quiz-question {
    border: 1px solid #dcecf6;
    border-radius: 10px;
    padding: 0.8rem;
    margin-bottom: 0.7rem;
    background: #fafdff;
}

.quiz-question label {
    display: block;
    font-weight: 500;
    margin-top: 0.35rem;
}

.quiz-question input[type="radio"] {
    width: auto;
    margin-right: 0.35rem;
}

.certificate-card {
    text-align: center;
    border: 2px solid #a7d2ea;
    background: linear-gradient(140deg, #ffffff, #f2fbff);
}

.academy-footer {
    border-top: 1px solid #d5e9f5;
    padding: 1rem 0;
    margin-top: 1rem;
    color: #45657a;
}

@media (max-width: 740px) {
    .header-wrap {
        flex-direction: column;
        align-items: stretch;
    }

    .academy-header nav {
        width: 100%;
        justify-content: flex-start;
    }

    .academy-header nav a {
        flex: 1 1 auto;
        text-align: center;
    }
}