/* ============================================================
   Oktoberlan – Custom CSS
   LAN-Party Dark Theme + U-Form Sitzplan + Sitzplatz-Picker
   ============================================================ */

/* --------------------------------------------------------
   1. Dark Theme – Bootstrap 5.3 CSS-Variablen überschreiben
   Warum: data-bs-theme="dark" liefert die Basis; wir passen
   Hintergründe und Farben für ein dunkleres LAN-Look an.
   -------------------------------------------------------- */
[data-bs-theme="dark"] {
    --bs-body-bg:           #0d1117;   /* fast schwarz, wie ein ausgeschalteter Bildschirm */
    --bs-body-color:        #e6edf3;
    --bs-card-bg:           #161b22;   /* dunkle Kartenoberfläche */
    --bs-border-color:      #30363d;
    --bs-secondary-bg:      #21262d;   /* Tabellenköpfe, Inputs */
    --bs-tertiary-bg:       #1c2128;
    --bs-primary:           #58a6ff;   /* neon-blau als Primärfarbe */
    --bs-primary-rgb:       88, 166, 255;
    --bs-link-color:        #58a6ff;
    --bs-link-hover-color:  #79c0ff;
}

/* Hintergrund mit feinem LAN-Grid-Muster (gibt Tiefe) */
body {
    background-image:
        linear-gradient(rgba(88,166,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(88,166,255,0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    background-attachment: fixed;
}

/* --------------------------------------------------------
   2. Navigation – Neon-Akzent oben
   -------------------------------------------------------- */
.navbar {
    border-bottom: 2px solid #58a6ff;
    box-shadow: 0 2px 20px rgba(88,166,255,0.25);
    background: rgba(13,17,23,0.95) !important;
    backdrop-filter: blur(6px);
}

.navbar-brand {
    color: #58a6ff !important;
    text-shadow: 0 0 12px rgba(88,166,255,0.6);
    letter-spacing: 0.03em;
}

/* Aktiver und Hover Nav-Link */
.nav-link:hover,
.nav-link.active {
    color: #58a6ff !important;
    text-shadow: 0 0 8px rgba(88,166,255,0.5);
}

/* --------------------------------------------------------
   3. Karten – dunkles Glas-Look mit Neon-Rand-Option
   -------------------------------------------------------- */
.card {
    border-color: #30363d;
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

/* Neon-Varianten für die Infokarten auf der Startseite */
.card.border-primary {
    border-color: #58a6ff !important;
    box-shadow: 0 0 16px rgba(88,166,255,0.25), 0 4px 12px rgba(0,0,0,0.4);
}
.card.border-success {
    border-color: #3fb950 !important;
    box-shadow: 0 0 16px rgba(63,185,80,0.25), 0 4px 12px rgba(0,0,0,0.4);
}
.card.border-warning {
    border-color: #d29922 !important;
    box-shadow: 0 0 16px rgba(210,153,34,0.25), 0 4px 12px rgba(0,0,0,0.4);
}

/* Card-Header dunkler */
.card-header {
    background-color: #1c2128;
    border-bottom-color: #30363d;
}

/* --------------------------------------------------------
   4. Formular-Elemente
   -------------------------------------------------------- */
.form-control,
.form-select {
    background-color: #21262d;
    border-color: #30363d;
    color: #e6edf3;
}
.form-control:focus,
.form-select:focus {
    background-color: #21262d;
    border-color: #58a6ff;
    color: #e6edf3;
    box-shadow: 0 0 0 0.2rem rgba(88,166,255,0.3);
}
.form-control::placeholder { color: #6e7681; }

/* Textarea */
textarea.form-control { resize: vertical; }

/* --------------------------------------------------------
   5. Buttons mit Neon-Glow
   -------------------------------------------------------- */
.btn-primary {
    background-color: #1f6feb;
    border-color: #1f6feb;
    box-shadow: 0 0 10px rgba(31,111,235,0.4);
}
.btn-primary:hover {
    background-color: #388bfd;
    border-color: #388bfd;
    box-shadow: 0 0 16px rgba(56,139,253,0.6);
}

.btn-outline-secondary:hover { border-color: #58a6ff; color: #58a6ff; }
.btn-outline-warning:hover   { box-shadow: 0 0 10px rgba(210,153,34,0.4); }
.btn-outline-danger:hover    { box-shadow: 0 0 10px rgba(248,81,73,0.4); }

/* Kalender-Buttons (Google / ICS) */
.btn-calendar-google {
    background-color: #1a73e8;
    border-color:     #1a73e8;
    color: #fff;
}
.btn-calendar-google:hover {
    background-color: #2b7de9;
    color: #fff;
    box-shadow: 0 0 14px rgba(26,115,232,0.5);
}
.btn-calendar-ics {
    background-color: #555;
    border-color:     #555;
    color: #fff;
}
.btn-calendar-ics:hover {
    background-color: #666;
    color: #fff;
    box-shadow: 0 0 14px rgba(200,200,200,0.3);
}

/* --------------------------------------------------------
   6. Alerts
   -------------------------------------------------------- */
.alert-success {
    background-color: rgba(63,185,80,0.12);
    border-color: #3fb950;
    color: #aff5b4;
}
.alert-danger {
    background-color: rgba(248,81,73,0.12);
    border-color: #f85149;
    color: #ffa198;
}
.alert-info {
    background-color: rgba(88,166,255,0.1);
    border-color: #58a6ff;
    color: #79c0ff;
}
.alert-light {
    background-color: #21262d;
    border-color: #30363d;
    color: #c9d1d9;
}

/* --------------------------------------------------------
   7. Tabellen
   -------------------------------------------------------- */
.table { color: #e6edf3; }
.table-light {
    --bs-table-bg:          #1c2128;
    --bs-table-color:       #e6edf3;
    --bs-table-border-color: #30363d;
}
.table-hover tbody tr:hover td { background-color: #21262d; }

/* --------------------------------------------------------
   8. Badges
   -------------------------------------------------------- */
.badge.bg-primary   { background-color: #1f6feb !important; }
.badge.bg-secondary { background-color: #30363d !important; }

/* --------------------------------------------------------
   9. Footer
   -------------------------------------------------------- */
.footer {
    background: rgba(13,17,23,0.95) !important;
    border-top: 1px solid #30363d;
}

/* --------------------------------------------------------
   10. Hero-Bereich (home.html)
   -------------------------------------------------------- */
.lan-hero-icon {
    display: inline-block;
    animation: hero-pulse 3s ease-in-out infinite;
    filter: drop-shadow(0 0 14px rgba(88,166,255,0.5));
}
@keyframes hero-pulse {
    0%, 100% { transform: scale(1); }
    50%       { transform: scale(1.06); }
}

.lan-hero-title {
    background: linear-gradient(135deg, #58a6ff 0%, #b0d0ff 50%, #d2a8ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

/* ============================================================
   U-FORM SITZPLAN (seats.html)
   ============================================================ */

/* --------------------------------------------------------
   11. Äußerer Layout-Container des U-Plans
   -------------------------------------------------------- */
.u-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
}

/* Raum mit U-Tisch an den Wänden */
.u-room {
    position: relative;
    width: 100%;
    max-width: 760px;
    min-height: 430px;
    border: 1px solid #30363d;
    border-radius: 14px;
    background: #161b22;
    overflow: hidden;
}

.u-table-shell {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 18px;
    bottom: 86px;
    border: 56px solid #21262d;
    border-bottom: 0;
    border-radius: 18px 18px 0 0;
    background: linear-gradient(160deg, #1e2430 0%, #21262d 55%, #1c2128 100%);
    box-sizing: border-box;
    box-shadow:
        0 0 20px rgba(88,166,255,0.2),
        inset 0 0 0 2px rgba(88,166,255,0.12);
}

.u-seats {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.u-seats-top {
    top: 94px;
    left: 50%;
    transform: translateX(-50%);
}

.u-seats-left {
    left: 94px;
    top: 118px;
}

.u-seats-right {
    right: 94px;
    top: 118px;
}

/* Arm-Beschriftung */
.u-arm-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #58a6ff;
    margin-bottom: 0.2rem;
}

.u-seat-row {
    display: flex;
    gap: 0.6rem;
}

.u-inner-label {
    position: absolute;
    left: 50%;
    top: 56%;
    transform: translate(-50%, -50%);
    color: #8b949e;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.u-entrance {
    margin-top: 0.1rem;
    padding: 0.35rem 1.4rem;
    border: 2px dashed rgba(88,166,255,0.4);
    border-radius: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #58a6ff;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    opacity: 0.75;
}

/* --------------------------------------------------------
   14. Sitzplatz-Box (seats.html Ansicht)
   -------------------------------------------------------- */
.seat-box {
    width: 90px;
    height: 90px;
    border-radius: 12px;
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4px;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

/* Freier Platz: neon-grün */
.seat-box.free {
    background-color: rgba(63,185,80,0.12);
    border-color: #3fb950;
    color: #aff5b4;
    box-shadow: 0 0 8px rgba(63,185,80,0.2);
}
.seat-box.free:hover { box-shadow: 0 0 14px rgba(63,185,80,0.45); }

/* Belegter Platz: neon-rot */
.seat-box.occupied {
    background-color: rgba(248,81,73,0.12);
    border-color: #f85149;
    color: #ffa198;
    box-shadow: 0 0 8px rgba(248,81,73,0.2);
}

/* Reservierter Platz: neon-lila */
.seat-box.reserved {
    background-color: rgba(188,140,255,0.12);
    border-color: #bc8cff;
    color: #d2a8ff;
    box-shadow: 0 0 8px rgba(188,140,255,0.2);
}

/* Platznummer groß und fett */
.seat-number {
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1;
}

/* Name / Status unter der Nummer */
.seat-name {
    font-size: 0.68rem;
    font-weight: 500;
    margin-top: 2px;
    max-width: 82px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* --------------------------------------------------------
   15. Legende unter dem Sitzplan
   -------------------------------------------------------- */
.seat-legend-box {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid transparent;
    display: inline-block;
}
.seat-legend-box.free     { background-color: rgba(63,185,80,0.15); border-color: #3fb950; }
.seat-legend-box.occupied { background-color: rgba(248,81,73,0.15); border-color: #f85149; }
.seat-legend-box.reserved { background-color: rgba(188,140,255,0.15); border-color: #bc8cff; }

/* ============================================================
   SITZPLATZ-PICKER (register.html – Mini-Sitzplan im Formular)
   ============================================================ */

/* --------------------------------------------------------
   16. Mini-U-Layout im Anmeldeformular
   -------------------------------------------------------- */
.seat-picker {
    display: flex;
    justify-content: center;
    padding: 1rem;
    background: #1c2128;
    border-radius: 12px;
    border: 1px solid #30363d;
}

.seat-picker-u {
    position: relative;
    width: 100%;
    max-width: 520px;
    min-height: 440px;
}

.seat-picker-table {
    position: absolute;
    left: 12px;
    right: 12px;
    top: 12px;
    bottom: 66px;
    border: 34px solid #21262d;
    border-bottom: 0;
    border-radius: 14px 14px 0 0;
    background: linear-gradient(160deg, #1e2430 0%, #21262d 55%, #1c2128 100%);
    box-sizing: border-box;
    box-shadow:
        0 0 14px rgba(88,166,255,0.18),
        inset 0 0 0 1px rgba(88,166,255,0.1);
}

.seat-picker-section {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.seat-picker-top {
    top: 62px;
    left: 50%;
    transform: translateX(-50%);
}

.seat-picker-left {
    top: 105px;
    left: 56px;
}

.seat-picker-right {
    top: 105px;
    right: 56px;
}

.seat-picker-row {
    display: flex;
    gap: 0.5rem;
}

/* Beschriftung */
.seat-picker-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #58a6ff;
}

/* Kleiner Sitzplatz-Knopf im Picker */
.seat-pick {
    width: 52px;
    height: 52px;
    border-radius: 8px;
    border: 2px solid transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    cursor: default;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
    user-select: none;
}

.seat-pick.available {
    background-color: rgba(63,185,80,0.12);
    border-color: #3fb950;
    color: #aff5b4;
    cursor: pointer;
}
.seat-pick.available:hover {
    transform: scale(1.1);
    box-shadow: 0 0 12px rgba(63,185,80,0.5);
}
.seat-pick.available.selected {
    background-color: #3fb950;
    border-color: #2ea043;
    color: #0d1117;
    box-shadow: 0 0 14px rgba(63,185,80,0.7);
}

.seat-pick.occupied {
    background-color: rgba(248,81,73,0.12);
    border-color: #f85149;
    color: #ffa198;
    opacity: 0.75;
}

.seat-pick.reserved {
    background-color: rgba(188,140,255,0.12);
    border-color: #bc8cff;
    color: #d2a8ff;
}

/* Legende im Formular */
.seat-legend {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 3px;
    border: 2px solid transparent;
    vertical-align: middle;
    margin-right: 2px;
}
.seat-legend.available { background-color: rgba(63,185,80,0.15); border-color: #3fb950; }
.seat-legend.occupied  { background-color: rgba(248,81,73,0.15); border-color: #f85149; }
.seat-legend.reserved  { background-color: rgba(188,140,255,0.15); border-color: #bc8cff; }

/* ============================================================
   17. Responsive Anpassungen
   ============================================================ */
@media (max-width: 576px) {
    .u-room { min-height: 380px; }
    .u-table-shell {
        left: 18px;
        right: 18px;
        top: 18px;
        bottom: 78px;
        border-width: 44px;
    }
    .u-seats-top { top: 84px; }
    .u-seats-left {
        left: 72px;
        top: 108px;
    }
    .u-seats-right {
        right: 72px;
        top: 108px;
    }
    .seat-picker-u { min-height: 400px; }
    .seat-picker-table {
        left: 8px;
        right: 8px;
        top: 8px;
        bottom: 58px;
        border-width: 28px;
    }
    .seat-picker-top { top: 52px; }
    .seat-picker-left {
        left: 36px;
        top: 90px;
    }
    .seat-picker-right {
        right: 36px;
        top: 90px;
    }
    /* Sitzplatz-Boxes */
    .seat-box    { width: 70px; height: 70px; }
    .seat-number { font-size: 1.1rem; }
    .seat-name   { font-size: 0.62rem; }
    /* Picker */
    .seat-pick   { width: 44px; height: 44px; font-size: 0.9rem; }
}