/**
 * Buttons – einheitliches Button-System
 * Gilt für Admin, Member und Frontend.
 * Setzt auf design-tokens.css auf.
 *
 * Regel: Jedes anklickbare Element verwendet entweder
 *   <button type="button"> oder <a role="button">
 * mit display:inline-flex, justify-content:center, align-items:center.
 */

/* ================================================
   BASIS-RESET für alle interaktiven Elemente
   ================================================ */
button,
[role="button"],
input[type="submit"],
input[type="button"],
input[type="reset"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.4;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    padding: 0;
    margin: 0;
    transition: all var(--transition-fast);
    -webkit-user-select: none;
    user-select: none;
    touch-action: manipulation;
    min-height: var(--touch-min);
}

button:focus-visible,
[role="button"]:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ================================================
   .btn – Basis-Klasse
   ================================================ */
.btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: var(--spacing-sm) !important;
    padding: var(--spacing-sm) var(--spacing-md) !important;
    font-family: var(--font-body) !important;
    font-size: var(--text-sm) !important;
    font-weight: 600 !important;
    line-height: 1.4 !important;
    text-align: center !important;
    text-decoration: none !important;
    white-space: nowrap !important;
    cursor: pointer !important;
    border-radius: var(--radius-sm) !important;
    border: 1px solid transparent !important;
    min-height: var(--touch-min) !important;
    transition: all var(--transition-fast) !important;
    -webkit-user-select: none !important;
    user-select: none !important;
    touch-action: manipulation !important;
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary) !important;
    outline-offset: 2px !important;
}

.btn:disabled,
.btn[disabled],
.btn[aria-disabled="true"] {
    opacity: 0.5 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
}

/* ================================================
   GRÖSSEN
   ================================================ */
.btn-xs {
    padding: 0.25rem 0.5rem !important;
    font-size: 0.7rem !important;
    min-height: 28px !important;
    border-radius: var(--radius-sm) !important;
}

.btn-sm {
    padding: 0.375rem 0.75rem !important;
    font-size: 0.8rem !important;
    min-height: 34px !important;
}

.btn-lg {
    padding: 0.875rem 1.75rem !important;
    font-size: 1rem !important;
    min-height: 52px !important;
    border-radius: var(--radius-md) !important;
}

.btn-xl {
    padding: 1rem 2rem !important;
    font-size: 1.05rem !important;
    min-height: 58px !important;
    border-radius: var(--radius-lg) !important;
}

.btn-full { width: 100% !important; }

.btn-icon {
    padding: var(--spacing-sm) !important;
    aspect-ratio: 1;
    min-width: var(--touch-min) !important;
}

/* ================================================
   VARIANTEN – Admin-Bereich (Amber/Glas)
   ================================================ */
.btn-admin {
    background: linear-gradient(135deg,
        var(--color-admin)      0%,
        var(--color-admin-dark) 100%) !important;
    color: white !important;
    border-color: var(--color-admin-dark) !important;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.25) !important;
}

.btn-admin:hover {
    filter: brightness(1.08) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35) !important;
}

/* Glas-Buttons (Admin/Member auf dunklem Hintergrund) */
.btn-glass {
    background: var(--glass-bg-medium) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    border: 1px solid var(--glass-border) !important;
    color: var(--glass-text) !important;
}

.btn-glass:hover {
    background: var(--glass-bg-strong) !important;
    border-color: var(--glass-border-light) !important;
    transform: translateY(-1px) !important;
}

.btn-glass-primary {
    background: var(--btn-glass-bg) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    border: 1px solid var(--btn-glass-border) !important;
    color: var(--glass-text) !important;
}

.btn-glass-primary:hover {
    background: var(--btn-glass-hover) !important;
    transform: translateY(-1px) !important;
}

.btn-glass-accent {
    background: var(--gold-glass-bg) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    border: 1px solid var(--gold-glass-border) !important;
    color: var(--glass-text) !important;
    box-shadow: 0 2px 8px rgba(107, 142, 35, 0.20) !important;
}

.btn-glass-accent:hover {
    background: var(--gold-glass-hover) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 14px rgba(107, 142, 35, 0.30) !important;
}

/* ================================================
   VARIANTEN – Semantische Farben (helles + dunkles Theme)
   ================================================ */
.btn-primary {
    background: var(--color-primary) !important;
    color: var(--color-text-inverse) !important;
    border-color: var(--color-primary-dark) !important;
}

.btn-primary:hover {
    background: var(--color-primary-dark) !important;
    transform: translateY(-1px) !important;
}

.btn-secondary {
    background: var(--color-surface) !important;
    color: var(--color-text) !important;
    border-color: var(--color-border) !important;
}

.btn-secondary:hover {
    background: var(--color-surface-hover) !important;
    border-color: var(--color-primary) !important;
}

.btn-success {
    background: var(--color-success) !important;
    color: white !important;
    border-color: var(--color-success) !important;
}

.btn-success:hover { filter: brightness(1.1) !important; transform: translateY(-1px) !important; }

.btn-danger {
    background: var(--color-danger) !important;
    color: white !important;
    border-color: var(--color-danger) !important;
}

.btn-danger:hover  { filter: brightness(1.1) !important; transform: translateY(-1px) !important; }

.btn-warning {
    background: var(--color-warning) !important;
    color: white !important;
    border-color: var(--color-warning) !important;
}

.btn-warning:hover { filter: brightness(1.1) !important; transform: translateY(-1px) !important; }

.btn-info {
    background: var(--color-info) !important;
    color: white !important;
    border-color: var(--color-info) !important;
}

/* Outline-Varianten */
.btn-outline-primary {
    background: transparent !important;
    color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
}

.btn-outline-primary:hover {
    background: var(--color-primary) !important;
    color: white !important;
}

.btn-outline-danger {
    background: transparent !important;
    color: var(--color-danger) !important;
    border-color: var(--color-danger) !important;
}

.btn-outline-danger:hover {
    background: var(--color-danger) !important;
    color: white !important;
}

/* ================================================
   WAHL-BUTTONS (Payment-Options, Template-Cards)
   Ersetzt: <div onclick="..."> in modalen Dialogen
   ================================================ */
.btn-choice {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.35rem !important;
    padding: 0.85rem 0.75rem !important;
    background: var(--glass-bg-light) !important;
    border: 2px solid var(--glass-border) !important;
    border-radius: var(--radius-md) !important;
    color: var(--glass-text-muted) !important;
    cursor: pointer !important;
    transition: all var(--transition-fast) !important;
    min-height: 70px !important;
    text-align: center !important;
    font-size: 0.82rem !important;
    font-weight: 500 !important;
    width: 100% !important;
    backdrop-filter: blur(4px) !important;
    -webkit-backdrop-filter: blur(4px) !important;
}

.btn-choice:hover {
    background: var(--glass-bg-medium) !important;
    border-color: var(--glass-border-light) !important;
    color: var(--glass-text) !important;
    transform: translateY(-2px) !important;
}

.btn-choice.selected,
.btn-choice[aria-pressed="true"] {
    background: var(--btn-glass-bg) !important;
    border-color: var(--color-primary) !important;
    color: var(--glass-text) !important;
    box-shadow: 0 0 0 3px rgba(44, 95, 120, 0.25) !important;
}

.btn-choice i,
.btn-choice .fa,
.btn-choice .fas,
.btn-choice .fab {
    font-size: 1.25rem !important;
    display: block !important;
}

.btn-choice .lbl,
.btn-choice strong {
    font-weight: 600 !important;
    font-size: 0.8rem !important;
}

/* Helles Theme (für Admin ohne Glass) */
.btn-choice-light {
    background: white !important;
    border: 2px solid var(--color-border) !important;
    color: var(--color-text) !important;
}

.btn-choice-light:hover {
    border-color: var(--color-primary) !important;
    background: var(--color-surface-hover) !important;
}

.btn-choice-light.selected {
    border-color: var(--color-primary) !important;
    background: rgba(44, 95, 120, 0.08) !important;
    color: var(--color-primary) !important;
}

/* ================================================
   KARTEN-BUTTONS (Newsletter-Vorlagen, Template-Cards)
   ================================================ */
.btn-card {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: flex-start !important;
    gap: 0.5rem !important;
    padding: 1.25rem 1rem !important;
    background: var(--glass-bg-medium) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: var(--radius-lg) !important;
    color: var(--glass-text) !important;
    cursor: pointer !important;
    transition: all var(--transition-normal) !important;
    text-align: center !important;
    width: 100% !important;
    min-height: 120px !important;
}

.btn-card:hover {
    background: var(--glass-bg-strong) !important;
    border-color: var(--color-admin) !important;
    transform: translateY(-3px) !important;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25) !important;
}

.btn-card h5,
.btn-card p {
    margin: 0 !important;
    text-align: center !important;
}

.btn-card h5 { color: var(--glass-text) !important; font-size: 0.9rem !important; }
.btn-card p  { color: var(--glass-text-muted) !important; font-size: 0.78rem !important; line-height: 1.4 !important; }

/* ================================================
   ICON-BUTTONS (Lightbox, Schließen, Nav-Pfeile)
   ================================================ */
.btn-icon-circle {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 44px !important;
    height: 44px !important;
    border-radius: var(--radius-full) !important;
    background: var(--glass-bg-medium) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    border: 1px solid var(--glass-border) !important;
    color: var(--glass-text) !important;
    cursor: pointer !important;
    transition: all var(--transition-fast) !important;
    font-size: 1rem !important;
}

.btn-icon-circle:hover {
    background: var(--glass-bg-strong) !important;
    border-color: var(--glass-border-strong) !important;
    transform: scale(1.1) !important;
}

/* ================================================
   GRUPPEN
   ================================================ */
.btn-group {
    display: inline-flex !important;
    flex-wrap: wrap !important;
    gap: var(--spacing-sm) !important;
}

.btn-group-full {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: var(--spacing-sm) !important;
    width: 100% !important;
}

.btn-group-full .btn {
    flex: 1 1 auto !important;
}

/* ================================================
   TOUCH-DEVICE OVERRIDES
   ================================================ */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .btn-choice,
    .btn-card,
    .btn-icon-circle {
        min-height: var(--touch-comfortable) !important;
    }

    .btn:active  { transform: scale(0.97) !important; opacity: 0.88 !important; }
    .btn:hover   { transform: none !important; }
}

/* ================================================
   MOBILE
   ================================================ */
@media (max-width: 480px) {
    .btn      { font-size: 0.8rem !important; }
    .btn-full,
    .btn-sm-full { width: 100% !important; }
}

/* ================================================
   REDUCED MOTION
   ================================================ */
@media (prefers-reduced-motion: reduce) {
    .btn,
    .btn-choice,
    .btn-card,
    .btn-icon-circle {
        transition: none !important;
        transform: none !important;
    }
}