/* =================================================================
   "Zettelkasten" – Karteikarten-Design für das öffentliche CMS
   Waldgrün + Senfgelb + handgesetzte Serife, Karteikarten-Ecken als
   wiederkehrendes Signatur-Element (passend zum "Boxen"-Feature).
   ================================================================= */

:root {
    --paper:        #EFF2EA;
    --paper-card:   #F8F9F5;
    --ink:          #1C2A20;
    --ink-soft:     #445245;
    --forest:       #2B4638;
    --forest-deep:  #1E3227;
    --mustard:      #D6A13B;
    --mustard-deep: #B9861F;
    --clay:         #B4523A;
    --line:         #CDD4C4;
    --line-soft:    #DEE3D6;

    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'IBM Plex Sans', -apple-system, Segoe UI, Arial, sans-serif;
    --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
}

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--paper);
    background-image:
        radial-gradient(circle at 1px 1px, rgba(43,70,56,0.07) 1px, transparent 0);
    background-size: 22px 22px;
    line-height: 1.65;
    font-size: 16px;
}

a { color: var(--forest); text-decoration: none; }
a:hover { color: var(--mustard-deep); text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
    outline: 2px solid var(--mustard-deep);
    outline-offset: 2px;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; }

/* ===== Header ===== */
.site-header {
    background: var(--forest);
    background-image: linear-gradient(180deg, var(--forest) 0%, var(--forest-deep) 100%);
    color: #EDEFE7;
    padding: 1.4rem 2rem;
    border-bottom: 3px solid var(--mustard);
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-end;
    gap: 1.25rem;
}
.branding { display: flex; flex-direction: column; gap: 0.2rem; }
.site-title {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 600;
    font-size: 1.9rem;
    color: #fff;
    letter-spacing: -0.01em;
}
.site-title:hover { color: var(--mustard); text-decoration: none; }
.site-tagline {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--mustard);
}
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 0.35rem;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}
.main-nav a {
    color: #EDEFE7;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.45rem 0.85rem;
    border-radius: 3px;
    display: inline-block;
    border: 1px solid transparent;
}
.main-nav a:hover {
    color: #fff;
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.18);
    text-decoration: none;
}

/* ===== Layout ===== */
.layout {
    max-width: 1200px;
    margin: 2.5rem auto;
    display: grid;
    grid-template-columns: 230px 1fr 230px;
    gap: 1.75rem;
    padding: 0 1.5rem;
    align-items: start;
}

/* Karteikarten-Optik mit angeschnittener Ecke (Signatur-Element) */
.sidebar, .main-content, .content-box {
    background: var(--paper-card);
    border: 1px solid var(--line);
    border-radius: 2px;
    box-shadow: 0 1px 0 var(--line-soft), 0 8px 16px -12px rgba(28,42,32,0.25);
    position: relative;
}
.sidebar::before, .main-content::before {
    content: "";
    position: absolute;
    top: 0; right: 0;
    width: 22px; height: 22px;
    background: var(--mustard);
    clip-path: polygon(100% 0, 0 0, 100% 100%);
}
.sidebar { padding: 1.5rem; height: fit-content; }
.sidebar h3 {
    margin: 0 0 0.85rem;
    font-size: 1.05rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px dashed var(--line);
}
.sidebar h4 {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin: 1.25rem 0 0.5rem;
}
.sidebar-page-list { list-style: none; padding: 0; margin: 0; }
.sidebar-page-list li { padding: 0.3rem 0; border-bottom: 1px dotted var(--line-soft); }
.sidebar-page-list li:last-child { border-bottom: none; }
.sidebar-page-list a { color: var(--ink); }
.sidebar-page-list a:hover { color: var(--mustard-deep); }
.sidebar-text { font-size: 0.9rem; color: var(--ink-soft); }

.content-box {
    padding: 1.1rem 1.25rem;
    margin-top: 1.1rem;
}
.content-box:first-of-type { margin-top: 0; }
.content-box h3 {
    margin: 0 0 0.4rem;
    font-size: 0.98rem;
    padding-right: 1rem;
}
.content-box .box-content { font-size: 0.88rem; color: var(--ink-soft); }

.main-content { padding: 2rem 2.5rem; min-height: 300px; }
.page-content h1 {
    margin-top: 0;
    font-size: 2.1rem;
    padding-bottom: 0.75rem;
    border-bottom: 3px solid var(--mustard);
    display: inline-block;
}
.page-content ul { padding-left: 1.2rem; }

/* ===== Footer ===== */
.site-footer {
    background: var(--forest-deep);
    color: #C9D0C3;
    text-align: center;
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.03em;
    margin-top: 3rem;
    border-top: 3px solid var(--mustard);
}
.site-footer a { color: var(--mustard); }

/* ===== Formulare ===== */
.auth-form { max-width: 440px; }
form label {
    display: block;
    margin-bottom: 1.1rem;
    font-weight: 600;
    font-size: 0.85rem;
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--ink-soft);
}
form input[type="text"],
form input[type="email"],
form input[type="password"],
form input[type="number"],
form select,
form textarea {
    display: block;
    width: 100%;
    margin-top: 0.4rem;
    padding: 0.65rem 0.8rem;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 3px;
    font-size: 1rem;
    font-family: var(--font-body);
    color: var(--ink);
    text-transform: none;
}
form input:focus, form select:focus, form textarea:focus {
    border-color: var(--mustard-deep);
}
form textarea { resize: vertical; font-family: var(--font-body); }
.checkbox-label {
    display: flex; align-items: center; gap: 0.6rem;
    font-weight: 500; text-transform: none; font-family: var(--font-body);
}
.checkbox-label input { width: auto; margin: 0; }

button, .btn {
    display: inline-block;
    background: var(--forest);
    color: #fff;
    border: none;
    padding: 0.7rem 1.4rem;
    border-radius: 3px;
    font-size: 0.85rem;
    font-family: var(--font-mono);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background-color 0.15s ease, transform 0.1s ease;
}
button:hover, .btn:hover { background: var(--forest-deep); color: #fff; text-decoration: none; }
button:active, .btn:active { transform: translateY(1px); }
.btn-secondary { background: transparent; color: var(--forest); border: 1px solid var(--line); margin-left: 0.5rem; }
.btn-secondary:hover { background: var(--paper); color: var(--forest-deep); border-color: var(--forest); }

.alert {
    padding: 0.85rem 1.1rem;
    border-radius: 3px;
    margin-bottom: 1.1rem;
    font-size: 0.92rem;
    border-left: 4px solid transparent;
}
.alert-error { background: #FBEAE5; color: #7A2E1C; border-left-color: var(--clay); }
.alert-success { background: #E7F0E3; color: #2B4E2F; border-left-color: var(--forest); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .layout { grid-template-columns: 1fr; }
    .main-content { padding: 1.5rem; }
    .header-inner { align-items: flex-start; }
}