/*  Besseler Kursportal — portal UI
    Brand palette extracted from the client's scraped React portal
    (Portal Backup/.../assets/index-ChrHLfZ9.css) so the demo visually
    matches Dennis's live preview at besseler-kursportal.dennis-bes.chatgpt.site.

    Primary  #17372e  deep forest green   (headers, buttons, primary actions)
    Cream    #efe7d6  warm parchment      (page background)
    Cream-2  #f3efe7  lighter cream       (card backgrounds)
    Stone    #c9c5bc  neutral stone       (borders, dividers)
    Ink      #3a433b  dark olive          (body text)
    Muted    #7f7f7f  gray                (secondary text)
    Gold     #d1b886  warm accent         (Rio Negro / highlight)

    Headings: Georgia, serif  (matches .rio-service-form legend in source)
    Body:     system-ui sans-serif
*/

:root {
    --primary:    #17372e;
    --primary-2:  #0d211c;
    --primary-3:  #142f28;
    --cream:      #efe7d6;
    --cream-2:    #f3efe7;
    --cream-3:    #ffffff;
    --stone:      #c9c5bc;
    --stone-2:    #dedad1;
    --ink:        #3a433b;
    --ink-deep:   #14201e;
    --muted:      #7f7f7f;
    --gold:       #d1b886;
    --line:       #17372e2e;
    --ok-bg:      #d1b88633;
    --ok-fg:      #142f28;
    --warn-bg:    #efe7d6;
    --warn-fg:    #6b4f1a;
    --radius:     10px;
    --shadow:     0 16px 40px #0d211c24;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--cream);
    background-image: linear-gradient(var(--cream), var(--cream-2));
    color: var(--ink);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

.container { max-width: 920px; margin: 0 auto; padding: 28px 22px 64px; }

header.top {
    background: var(--primary);
    background-image: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
    color: var(--cream);
    padding: 22px 22px;
    border-bottom: 4px solid var(--gold);
}
header.top .row {
    max-width: 920px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; flex-wrap: wrap;
}
header.top .brand {
    font-family: Georgia, "Times New Roman", serif;
    font-weight: 600; font-size: 22px; letter-spacing: 0.3px;
}
header.top nav a {
    color: var(--cream); text-decoration: none;
    margin-left: 18px; opacity: 0.88;
    font-size: 14px;
    border-bottom: 1px solid transparent;
    transition: border-color .15s ease;
}
header.top nav a:hover { opacity: 1; border-bottom-color: var(--gold); }

a { color: var(--primary); }
a:hover { color: var(--primary-3); }

h1 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 30px; font-weight: 600;
    color: var(--primary-3);
    margin: 8px 0 6px;
    line-height: 1.25;
}
h2 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 22px; font-weight: 600;
    color: var(--primary);
    margin: 28px 0 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--line);
}
p  { margin: 8px 0; }
.muted { color: var(--muted); font-size: 14px; }

.card {
    background: var(--cream-3);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px 22px;
    margin: 14px 0;
    box-shadow: var(--shadow);
}
.card h3 {
    font-family: Georgia, serif;
    margin: 0 0 6px; font-size: 19px; color: var(--primary-3);
}
.card .meta {
    color: var(--muted); font-size: 13px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.badge {
    display: inline-block; padding: 3px 12px; border-radius: 999px;
    font-size: 12px; font-weight: 600; letter-spacing: 0.3px;
}
.badge.active {
    background: var(--ok-bg); color: var(--ok-fg);
    border: 1px solid #17372e4d;
}
.badge.locked {
    background: #efe7d6; color: var(--warn-fg);
    border: 1px solid var(--stone);
}

button, .btn, input[type=submit] {
    background: var(--primary);
    background-image: linear-gradient(135deg, var(--primary), var(--primary-2));
    color: var(--cream); border: 0;
    padding: 11px 18px; border-radius: 8px;
    font-size: 14px; font-weight: 600;
    cursor: pointer; text-decoration: none; display: inline-block;
    transition: transform .12s ease, box-shadow .12s ease;
    box-shadow: 0 2px 8px #0d211c33;
}
button:hover, .btn:hover, input[type=submit]:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px #0d211c44;
}
button.secondary, .btn.secondary {
    background: var(--cream-3); color: var(--primary);
    border: 1px solid var(--primary);
    box-shadow: none;
}
button.secondary:hover, .btn.secondary:hover { background: var(--cream-2); }

form.login { max-width: 380px; margin-top: 18px; }
label {
    display: block; font-size: 14px; font-weight: 600;
    margin: 16px 0 4px; color: var(--ink);
}
input[type=email], input[type=password] {
    width: 100%; padding: 11px 14px;
    border: 1px solid var(--stone); border-radius: 8px;
    font-size: 15px; font-family: inherit;
    background: var(--cream-3);
    color: var(--ink-deep);
}
input[type=email]:focus, input[type=password]:focus {
    outline: 2px solid var(--gold); outline-offset: -1px;
    border-color: var(--primary);
}

.flash {
    padding: 12px 16px; border-radius: 8px;
    margin: 14px 0; font-size: 14px;
    border-left: 4px solid;
}
.flash.error  { background: #efe7d6; color: #6b4f1a; border-left-color: #b45309; }
.flash.info   { background: #f3efe7; color: var(--primary); border-left-color: var(--primary); }
.flash.success{ background: var(--ok-bg); color: var(--ok-fg); border-left-color: var(--primary); }

audio {
    width: 100%; margin: 10px 0 4px;
    border-radius: 8px;
}

.track {
    background: var(--cream-2);
    border: 1px solid var(--line);
    border-left: 3px solid var(--gold);
    border-radius: 8px;
    padding: 14px 16px; margin: 12px 0;
}
.track .name {
    font-weight: 600; color: var(--primary-3);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
    font-size: 14px;
}
.track .saved { color: var(--muted); font-size: 12px; margin-top: 4px; }

.pdf-list { list-style: none; padding: 0; margin: 8px 0; }
.pdf-list li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.pdf-list li:last-child { border-bottom: 0; }
.pdf-list a { font-weight: 600; }
.pdf-list a::before { content: "📄 "; filter: grayscale(1); margin-right: 4px; }

.credentials {
    background: var(--cream-3);
    border: 1px dashed var(--primary);
    border-left: 4px solid var(--gold);
    padding: 14px 18px; border-radius: 8px;
    font-size: 14px; max-width: 460px;
}
.credentials code {
    background: var(--cream-2); padding: 2px 8px;
    border-radius: 4px; border: 1px solid var(--stone-2);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
    color: var(--primary-3);
}

footer.bottom {
    max-width: 920px; margin: 0 auto;
    padding: 28px 22px 40px;
    color: var(--muted); font-size: 12px;
    border-top: 1px solid var(--line);
    margin-top: 48px;
}

@media (max-width: 520px) {
    h1 { font-size: 24px; }
    header.top .row { flex-direction: column; align-items: flex-start; }
    header.top nav a { margin-left: 0; margin-right: 16px; }
}