/* ─── Icons (Lucide SVG) ──────────────────────────── */
.icon {
    display: inline-block;
    flex-shrink: 0;
    vertical-align: text-bottom;
    color: currentColor;
}

/* Icons in Buttons sind etwas kleiner als Text */
.btn .icon {
    width: 1em;
    height: 1em;
    margin-right: 0.1em;
}

.btn-sm .icon {
    width: 0.95em;
    height: 0.95em;
}

/* Nav-Icons in Sidebar */
.nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

.nav-icon .icon {
    width: 100%;
    height: 100%;
}

/* ─── Buttons ─────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.125rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--font);
    letter-spacing: -0.005em;
    cursor: pointer;
    transition: background var(--duration) var(--ease-out),
                border-color var(--duration) var(--ease-out),
                color var(--duration) var(--ease-out),
                box-shadow var(--duration) var(--ease-out),
                transform var(--duration-fast) var(--ease-out);
    white-space: nowrap;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.btn:active {
    transform: scale(0.97);
}

.btn:focus-visible {
    box-shadow: var(--shadow-focus);
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-xs);
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--bg-subtle);
    color: var(--text);
}

.btn-secondary:hover {
    background: var(--border);
}

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: var(--shadow-xs);
}

.btn-success:hover {
    background: var(--success-700);
    box-shadow: var(--shadow-sm);
}

.btn-danger {
    background: var(--danger);
    color: white;
    box-shadow: var(--shadow-xs);
}

.btn-danger:hover {
    background: var(--danger-700);
    box-shadow: var(--shadow-sm);
}

.btn-outline {
    background: transparent;
    border-color: var(--border-strong);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ─── Forms ───────────────────────────────────────── */
.form-group {
    margin-bottom: 1.125rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text);
    letter-spacing: -0.005em;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.625rem 0.85rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-family: var(--font);
    color: var(--text);
    background: var(--bg-card);
    transition: border-color var(--duration) var(--ease-out),
                box-shadow var(--duration) var(--ease-out),
                background var(--duration) var(--ease-out);
}

.form-group input:hover,
.form-group textarea:hover,
.form-group select:hover {
    border-color: var(--border-strong);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--shadow-focus);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.captcha-container:not(:empty) {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

/* Dashboard: mehrere eigene Kinder gebündelt in einer Karte */
.dashboard-athlete-list {
    margin-top: 0.75rem;
}
.dashboard-athlete-block {
    padding-top: 0.6rem;
    margin-top: 0.6rem;
    border-top: 1px dashed var(--border);
}
.dashboard-athlete-list .dashboard-athlete-block:first-child {
    border-top: none;
    margin-top: 0;
    padding-top: 0;
}
.dashboard-athlete-block .event-card-header {
    align-items: center;
}
.dashboard-athlete-block .event-card-athlete {
    font-weight: 600;
}

.form-error {
    background: var(--danger-bg);
    color: var(--danger-700);
    padding: 0.625rem 0.85rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid var(--danger-100);
}

[data-theme="dark"] .form-error {
    color: var(--danger-100);
    border-color: rgba(239, 68, 68, 0.25);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* ─── Cards ───────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-xs);
    transition: box-shadow var(--duration) var(--ease-out),
                transform var(--duration) var(--ease-out),
                border-color var(--duration) var(--ease-out);
}

.card + .card {
    margin-top: 0.75rem;
}

/* Klickbare Cards: Hover-Lift */
.card[onclick],
.card[role="button"],
a > .card {
    cursor: pointer;
}

.card[onclick]:hover,
.card[role="button"]:hover,
a > .card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--border-strong);
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    letter-spacing: -0.005em;
}

.card-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.875rem;
    flex-wrap: wrap;
}

/* ─── Badges ──────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.1rem 0.5rem;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    background: var(--danger);
    color: white;
    min-width: 18px;
    justify-content: center;
}

.role-badge {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--primary-light);
    color: var(--primary);
    letter-spacing: -0.005em;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: -0.005em;
}

.status-offen {
    background: var(--warning-bg);
    color: var(--warning-700);
}

.status-zugesagt {
    background: var(--success-bg);
    color: var(--success-700);
}

.status-abgesagt {
    background: var(--danger-bg);
    color: var(--danger-700);
}

.status-eingeladen {
    background: var(--info-bg);
    color: var(--info-600);
}

[data-theme="dark"] .status-offen { color: var(--warning-100); }
[data-theme="dark"] .status-zugesagt { color: var(--success-100); }
[data-theme="dark"] .status-abgesagt { color: var(--danger-100); }
[data-theme="dark"] .status-eingeladen { color: var(--primary-200); }

/* ─── Modal ───────────────────────────────────────── */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    animation: backdropIn var(--duration-slow) var(--ease-out);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    width: 100%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalIn var(--duration-slow) var(--ease-out);
}

.modal-content h2 {
    margin-bottom: 1.25rem;
    font-size: 1.2rem;
}

.modal-close {
    cursor: pointer;
}

@keyframes backdropIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(20px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ─── Toast ───────────────────────────────────────── */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    pointer-events: none;
}

.toast {
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    color: white;
    box-shadow: var(--shadow-lg);
    animation: toastIn var(--duration-slow) var(--ease-out),
               toastOut var(--duration-slow) var(--ease-out) 3s forwards;
    pointer-events: auto;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--gray-800); }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(16px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
    to { opacity: 0; transform: translateY(-12px); }
}

/* ─── Skeleton Loaders ────────────────────────────── */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-subtle) 0%,
        var(--border) 50%,
        var(--bg-subtle) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.4s infinite linear;
    border-radius: var(--radius-sm);
    color: transparent;
    pointer-events: none;
    user-select: none;
}

@keyframes skeleton-shimmer {
    from { background-position: 200% 0; }
    to { background-position: -200% 0; }
}

.skeleton-card {
    height: 96px;
    margin-bottom: 0.75rem;
    border-radius: var(--radius-lg);
}

.skeleton-line {
    height: 0.85rem;
    margin-bottom: 0.5rem;
    border-radius: var(--radius-full);
}

.skeleton-line.short  { width: 35%; }
.skeleton-line.medium { width: 65%; }
.skeleton-line.long   { width: 90%; }

.skeleton-title {
    height: 1.4rem;
    width: 45%;
    margin-bottom: 1rem;
    border-radius: var(--radius-sm);
}

.skeleton-stack > * + * {
    margin-top: 0.5rem;
}

/* ─── View Transitions API (Cross-Fade zwischen Pages) ─── */
@supports (view-transition-name: none) {
    ::view-transition-old(page),
    ::view-transition-new(page) {
        animation-duration: 220ms;
        animation-timing-function: var(--ease-out);
    }
    ::view-transition-old(page) {
        animation-name: vt-fade-out;
    }
    ::view-transition-new(page) {
        animation-name: vt-fade-in;
    }
    @keyframes vt-fade-out {
        to { opacity: 0; transform: translateY(-4px); }
    }
    @keyframes vt-fade-in {
        from { opacity: 0; transform: translateY(8px); }
    }
    #page-content {
        view-transition-name: page;
    }
}

/* ─── Loading ─────────────────────────────────────── */
.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 400;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

[data-theme="dark"] .loading-overlay {
    background: rgba(3, 7, 18, 0.7);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ─── Empty State ─────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.empty-state p {
    margin-bottom: 0.5rem;
}

/* ─── Update Banner ───────────────────────────────── */
.update-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 500;
    background: var(--primary);
    color: white;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
    animation: slideUp var(--duration-slow) var(--ease-out);
}

.update-banner .btn {
    background: white;
    color: var(--primary);
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

/* ─── Page-Content Fade-In (Fallback ohne View Transitions) ─── */
.page-content > * {
    animation: pageIn var(--duration-slow) var(--ease-out);
}

@keyframes pageIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* In modernen Browsern übernehmen die View Transitions den Effekt —
   doppelte Animation würde flackern */
@supports (view-transition-name: none) {
    .page-content > * { animation: none; }
}

/* ─── Reduce Motion Respect ───────────────────────── */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}