/* ============================================================
   AUFGABEN-COCKPIT – Stylesheet
   todo-jti.bilderbulli.de
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --clr-bg:       #f0f2f5;
    --clr-surface:  #ffffff;
    --clr-primary:  #2563eb;
    --clr-primary-h:#1d4ed8;
    --clr-text:     #1f2937;
    --clr-muted:    #6b7280;
    --clr-border:   #e5e7eb;
    --clr-red:      #dc2626;
    --clr-amber:    #d97706;
    --clr-green:    #16a34a;
    --clr-blue:     #2563eb;
    --clr-purple:   #7c3aed;
    --radius:       12px;
    --shadow:       0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md:    0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--clr-bg);
    color: var(--clr-text);
    min-height: 100vh;
    line-height: 1.6;
}

a { color: var(--clr-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- HEADER ---- */
.app-header {
    background: var(--clr-surface);
    border-bottom: 1px solid var(--clr-border);
    position: sticky; top: 0; z-index: 100;
    box-shadow: var(--shadow);
}
.header-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: .85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.header-title {
    display: flex; align-items: center; gap: .5rem;
    font-weight: 700; font-size: 1.15rem; color: var(--clr-text);
}
.header-icon { font-size: 1.4rem; }
.header-actions { display: flex; gap: .5rem; align-items: center; }
.back-link { color: var(--clr-muted); font-size: .9rem; margin-right: .5rem; }

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex; align-items: center; gap: .35rem;
    padding: .5rem 1rem;
    border-radius: 8px;
    font-size: .875rem; font-weight: 600;
    border: none; cursor: pointer;
    transition: background .15s, transform .1s;
    text-decoration: none;
}
.btn:active { transform: scale(.97); }
.btn-primary  { background: var(--clr-primary); color: #fff; }
.btn-primary:hover { background: var(--clr-primary-h); text-decoration: none; }
.btn-ghost    { background: transparent; color: var(--clr-muted); border: 1px solid var(--clr-border); }
.btn-ghost:hover { background: var(--clr-bg); text-decoration: none; }
.btn-full     { width: 100%; justify-content: center; padding: .75rem; }

/* ---- STATS BAR ---- */
.stats-bar {
    max-width: 960px; margin: 1.25rem auto .5rem;
    padding: 0 1.25rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: .75rem;
}
.stat {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: .85rem 1rem;
    text-align: center;
    box-shadow: var(--shadow);
}
.stat-value { font-size: 1.75rem; font-weight: 800; line-height: 1.1; }
.stat-label { font-size: .75rem; color: var(--clr-muted); margin-top: .15rem; }
.stat-red   .stat-value { color: var(--clr-red); }
.stat-amber .stat-value { color: var(--clr-amber); }
.stat-blue  .stat-value { color: var(--clr-blue); }

/* ---- FILTER BAR ---- */
.filter-bar {
    max-width: 960px; margin: .75rem auto .25rem;
    padding: 0 1.25rem;
    display: flex; gap: .5rem;
}
.filter-btn {
    padding: .4rem .9rem;
    border-radius: 20px;
    font-size: .85rem; font-weight: 500;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    color: var(--clr-muted);
    cursor: pointer; transition: all .15s;
    text-decoration: none;
}
.filter-btn:hover { text-decoration: none; border-color: var(--clr-primary); color: var(--clr-primary); }
.filter-btn.active { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); }

/* ---- MAIN CONTENT ---- */
.main-content {
    max-width: 960px; margin: 0 auto;
    padding: .75rem 1.25rem 5rem;
}

/* ---- CATEGORY SECTION ---- */
.category-section { margin-bottom: 1.5rem; }
.category-title {
    font-size: 1rem; font-weight: 700;
    color: var(--clr-muted);
    display: flex; align-items: center; gap: .5rem;
    margin-bottom: .6rem;
    text-transform: uppercase; letter-spacing: .05em; font-size: .8rem;
}
.cat-count {
    background: var(--clr-border);
    color: var(--clr-muted);
    border-radius: 20px;
    padding: .1rem .5rem;
    font-size: .75rem;
}

/* ---- TASK CARD ---- */
.task-card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: .9rem 1rem;
    margin-bottom: .5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--clr-border);
    transition: box-shadow .15s;
}
.task-card:hover { box-shadow: var(--shadow-md); }
.prio-hoch    { border-left-color: var(--clr-red); }
.prio-mittel  { border-left-color: var(--clr-amber); }
.prio-niedrig { border-left-color: var(--clr-green); }
.task-done    { opacity: .55; }

.task-header {
    display: flex; align-items: flex-start;
    justify-content: space-between; gap: .5rem;
}
.task-left  { display: flex; align-items: flex-start; gap: .6rem; flex: 1; min-width: 0; }
.task-right { display: flex; align-items: center; gap: .25rem; flex-shrink: 0; }

.complete-btn {
    background: none; border: none; cursor: pointer;
    font-size: 1.2rem; line-height: 1; padding: 0;
    transition: transform .1s;
    flex-shrink: 0; margin-top: .1rem;
}
.complete-btn:hover { transform: scale(1.2); }

.task-title-wrap { flex: 1; min-width: 0; }
.task-title {
    font-weight: 600; font-size: .95rem;
    display: block; word-break: break-word;
}
.strikethrough { text-decoration: line-through; color: var(--clr-muted); }

.task-badges { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .3rem; }

/* ---- BADGES ---- */
.badge, .priority-badge {
    display: inline-block;
    padding: .15rem .55rem;
    border-radius: 20px;
    font-size: .72rem; font-weight: 600;
    line-height: 1.4;
}
.prio-badge-hoch    { background: #fee2e2; color: var(--clr-red); }
.prio-badge-mittel  { background: #fef3c7; color: var(--clr-amber); }
.prio-badge-niedrig { background: #dcfce7; color: var(--clr-green); }
.badge-overdue { background: #fee2e2; color: var(--clr-red); }
.badge-today   { background: #fef3c7; color: var(--clr-amber); }
.badge-soon    { background: #dbeafe; color: var(--clr-blue); }
.badge-date    { background: #f3f4f6; color: var(--clr-muted); }
.badge-claude  { background: #ede9fe; color: var(--clr-purple); }

.icon-btn {
    background: none; border: none; cursor: pointer;
    font-size: 1rem; padding: .2rem .3rem;
    border-radius: 6px; transition: background .15s;
    opacity: .5;
}
.icon-btn:hover { background: var(--clr-bg); opacity: 1; }

/* ---- TASK DETAILS ---- */
.task-desc {
    margin-top: .55rem;
    font-size: .875rem; color: var(--clr-muted);
    padding-left: 1.85rem;
}
.claude-note {
    margin-top: .5rem;
    background: #ede9fe;
    border-radius: 8px;
    padding: .5rem .75rem;
    font-size: .82rem; color: #4c1d95;
    margin-left: 1.85rem;
    display: flex; gap: .4rem; align-items: flex-start;
}
.claude-note-icon { flex-shrink: 0; }
.task-link {
    margin-top: .4rem; padding-left: 1.85rem;
    font-size: .82rem;
}

/* ---- EMPTY STATE ---- */
.empty-state {
    text-align: center; padding: 4rem 1rem;
    color: var(--clr-muted);
}
.empty-icon { font-size: 3rem; margin-bottom: 1rem; }
.empty-state h2 { color: var(--clr-text); margin-bottom: .5rem; }
.empty-state p  { margin-bottom: 1.5rem; }

/* ---- FORM PAGE ---- */
.form-page { max-width: 640px !important; }
.form-card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: 1.75rem;
    box-shadow: var(--shadow-md);
}
.form-group { margin-bottom: 1.15rem; }
.form-group label {
    display: block;
    font-size: .85rem; font-weight: 600;
    margin-bottom: .35rem; color: var(--clr-text);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: .6rem .8rem;
    border: 1.5px solid var(--clr-border);
    border-radius: 8px;
    font-size: .925rem; font-family: inherit;
    color: var(--clr-text);
    background: var(--clr-surface);
    transition: border-color .15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: .75rem;
}
.form-actions {
    display: flex; justify-content: flex-end; gap: .75rem;
    margin-top: 1.5rem; padding-top: 1rem;
    border-top: 1px solid var(--clr-border);
}
.required { color: var(--clr-red); }

/* ---- LOGIN ---- */
.login-body {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh; background: var(--clr-bg);
}
.login-box {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    width: 100%; max-width: 380px;
    box-shadow: var(--shadow-md);
    text-align: center;
}
.login-logo { font-size: 3rem; margin-bottom: .5rem; }
.login-box h1 { font-size: 1.4rem; margin-bottom: .25rem; }
.login-sub { color: var(--clr-muted); font-size: .9rem; margin-bottom: 1.75rem; }
.login-box .form-group { text-align: left; }

/* ---- ALERTS ---- */
.alert {
    padding: .75rem 1rem;
    border-radius: 8px;
    font-size: .875rem;
    margin-bottom: 1rem;
}
.alert-error   { background: #fee2e2; color: var(--clr-red);   border: 1px solid #fca5a5; }
.alert-success { background: #dcfce7; color: var(--clr-green); border: 1px solid #86efac; }

/* ---- IMPORT HINT ---- */
.import-hint {
    margin-top: 1.75rem;
    background: #ede9fe;
    border-radius: 10px;
    padding: 1rem 1.25rem;
    font-size: .875rem; color: #4c1d95;
}
.import-hint h3 { font-size: .9rem; margin-bottom: .6rem; }
.import-hint ol { padding-left: 1.25rem; }
.import-hint li { margin-bottom: .35rem; line-height: 1.5; }

/* ---- UPLOAD AREA ---- */
.upload-area {
    position: relative;
    border: 2px dashed var(--clr-border);
    border-radius: var(--radius);
    padding: 2.5rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: border-color .2s, background .2s;
    margin-bottom: 1rem;
}
.upload-area:hover {
    border-color: var(--clr-primary);
    background: #eff6ff;
}
.upload-icon { font-size: 2.5rem; margin-bottom: .5rem; }

/* ---- FAB ---- */
.fab {
    display: none;
    position: fixed; bottom: 1.5rem; right: 1.5rem;
    width: 56px; height: 56px;
    background: var(--clr-primary); color: #fff;
    border-radius: 50%;
    font-size: 1.75rem; line-height: 56px; text-align: center;
    box-shadow: 0 4px 12px rgba(37,99,235,.35);
    text-decoration: none;
    z-index: 50;
    transition: background .15s, transform .1s;
}
.fab:hover { background: var(--clr-primary-h); transform: scale(1.07); text-decoration: none; }

/* ---- RESPONSIVE ---- */
@media (max-width: 640px) {
    .stats-bar { grid-template-columns: repeat(2, 1fr); }
    .header-inner { flex-wrap: wrap; }
    .fab { display: block; }
    .header-actions .btn-primary { display: none; }
    .form-card { padding: 1.25rem; }
    .form-actions { flex-direction: column-reverse; }
    .form-actions .btn { width: 100%; justify-content: center; }
}