/* === Steuer Tool - Modern Design 2025 === */

:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    
    --accent: #06b6d4;
    --accent-light: #cffafe;
    
    --color-einnahme: #10b981;
    --color-einnahme-light: #d1fae5;
    --color-ausgabe: #f43f5e;
    --color-ausgabe-light: #ffe4e6;
    --color-afa: #8b5cf6;
    --color-afa-light: #ede9fe;
    --color-gewinn: #10b981;
    --color-verlust: #f43f5e;
    --color-betriebskosten: #f59e0b;
    --color-betriebskosten-light: #fef3c7;
    
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gray-950: #020617;
    
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 28px;

    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -2px rgba(0,0,0,0.03);
    --shadow-md: 0 8px 16px -4px rgba(0,0,0,0.06), 0 2px 6px -2px rgba(0,0,0,0.04);
    --shadow-lg: 0 20px 40px -8px rgba(0,0,0,0.08), 0 4px 12px -4px rgba(0,0,0,0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.12);
    
    --nav-height: 64px;
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

* { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif; }

body {
    background-color: var(--gray-50);
    color: var(--gray-800);
    font-size: 0.925rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    padding: 0;
}

/* =============================================
   LOGIN PAGE
   ============================================= */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-950);
    position: relative;
    overflow: hidden;
}
.login-container::before {
    content: '';
    position: fixed;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(99,102,241,0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(6,182,212,0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(16,185,129,0.08) 0%, transparent 50%);
    z-index: 0;
    animation: bgFloat 25s ease-in-out infinite;
}
@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-20px, 10px) rotate(1deg); }
    66% { transform: translate(15px, -15px) rotate(-1deg); }
}

.login-card {
    width: 100%;
    max-width: 420px;
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255,255,255,0.06);
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    box-shadow: 0 25px 60px -12px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05) inset;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.login-card .card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, #7c3aed 100%);
    border-bottom: none;
    text-align: center;
    padding: 2.5rem 2rem 1.75rem;
    position: relative;
    overflow: hidden;
}
.login-card .card-header::before {
    content: '';
    position: absolute;
    top: -40%; right: -20%;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
}
.login-card .card-header h3 {
    color: #fff;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.03em;
    margin-bottom: 0.25rem;
    position: relative;
}
.login-card .card-header p {
    color: rgba(255,255,255,0.7);
    font-size: 0.88rem;
    position: relative;
}

.login-card .card-body {
    padding: 2rem;
    background: var(--gray-50);
}
.login-card .card-body .form-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gray-700);
}
.login-card .card-body .form-control {
    border-radius: 10px;
    border: 1.5px solid var(--gray-200);
    padding: 0.65rem 0.9rem;
    font-size: 0.9rem;
    transition: var(--transition);
}
.login-card .card-body .form-control:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(99,102,241,0.1);
}
.login-card .card-body .input-group-text {
    background: var(--gray-100);
    border: 1.5px solid var(--gray-200);
    border-right: none;
    border-radius: 10px 0 0 10px;
    color: var(--gray-400);
}
.login-card .card-body .input-group .form-control {
    border-left: none;
    border-radius: 0 10px 10px 0;
}
.login-card .card-body .btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.92rem;
    padding: 0.7rem;
    box-shadow: 0 2px 8px rgba(99,102,241,0.3);
    transition: var(--transition);
}
.login-card .card-body .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(99,102,241,0.4);
    transform: translateY(-2px);
}

/* =============================================
   NAVIGATION - Modern Dark Glass Nav
   ============================================= */
.app-navbar {
    background: var(--gray-900) !important;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2), 0 0 40px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1030;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 0;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    height: auto;
    min-height: var(--nav-height);
}
.app-navbar .container-fluid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem !important;
    width: 100%;
    max-width: none;
    margin: 0;
}
.app-navbar .navbar-brand {
    font-weight: 800;
    font-size: 1.05rem;
    color: #fff !important;
    letter-spacing: -0.03em;
    padding: 0.875rem 0;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    transition: var(--transition);
}
.app-navbar .navbar-brand:hover {
    opacity: 0.9;
}
.app-navbar .navbar-brand .brand-icon {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.05rem;
    box-shadow: 0 2px 8px rgba(99,102,241,0.3);
}
.app-navbar .navbar-toggler {
    border: 1.5px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    padding: 0.35rem 0.6rem;
    background: none;
    cursor: pointer;
}
.app-navbar .navbar-toggler-icon {
    display: inline-block;
    width: 1.5em;
    height: 1.5em;
    vertical-align: middle;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100%;
}

/* Navbar items */
.app-navbar .navbar-nav {
    list-style: none;
    padding-left: 0;
    margin: 0;
    display: flex;
    align-items: center;
}
.app-navbar .nav-link {
    color: rgba(255,255,255,0.55) !important;
    font-weight: 500;
    font-size: 0.855rem;
    padding: 0.875rem 0.75rem !important;
    border-bottom: 2px solid transparent;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
}
.app-navbar .nav-link:hover {
    color: rgba(255,255,255,0.95) !important;
    background: rgba(255,255,255,0.04);
}
.app-navbar .nav-link.active {
    color: #fff !important;
    font-weight: 600;
    background: rgba(255,255,255,0.06);
}
.app-navbar .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0.75rem;
    right: 0.75rem;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-light), var(--accent));
    border-radius: 2px 2px 0 0;
}
.app-navbar .nav-link i {
    font-size: 1rem;
    opacity: 0.8;
}
.app-navbar .dropdown-toggle::after {
    margin-left: 0.4em;
    opacity: 0.5;
}

/* Desktop navbar */
@media (min-width: 992px) {
    .app-navbar .navbar-collapse {
        display: flex !important;
        flex-basis: auto;
        flex-grow: 1;
        align-items: center;
    }
    .app-navbar .navbar-nav {
        flex-direction: row;
    }
    .app-navbar .navbar-toggler {
        display: none;
    }
    .app-navbar .me-auto {
        margin-right: auto !important;
    }
}

/* Mobile navbar */
@media (max-width: 991.98px) {
    .app-navbar .navbar-collapse {
        width: 100%;
        flex-basis: 100%;
    }
    .app-navbar .navbar-collapse:not(.show) {
        display: none;
    }
    .app-navbar .navbar-nav {
        flex-direction: column;
        width: 100%;
        padding: 0.5rem 0;
    }
    .app-navbar .nav-link {
        border-bottom: none !important;
        border-radius: var(--radius-sm);
        padding: 0.6rem 0.85rem !important;
    }
    .app-navbar .nav-link.active {
        background: rgba(255,255,255,0.08);
    }
    .app-navbar .nav-link.active::after {
        display: none;
    }
}
.app-navbar .navbar-nav .badge {
    font-size: 0.68rem;
    padding: 0.2em 0.55em;
    border-radius: 6px;
    font-weight: 600;
    background: rgba(99,102,241,0.2) !important;
    color: var(--primary-light) !important;
    border: 1px solid rgba(99,102,241,0.15);
}
.app-navbar .dropdown-menu {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 0.4rem;
    margin-top: 0.5rem;
    display: none;
    position: absolute;
    right: 0;
    left: auto;
    min-width: 11rem;
    background: #fff;
    z-index: 1050;
    list-style: none;
    overflow: hidden;
    animation: dropIn 0.15s ease-out;
}
@keyframes dropIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}
.app-navbar .dropdown-menu li {
    list-style: none;
    padding: 0;
    margin: 0;
}
.app-navbar .dropdown-menu .dropdown-divider {
    margin: 0.25rem 0;
    border-color: var(--gray-100);
}
.app-navbar .dropdown-menu.show {
    display: block;
}
.app-navbar .dropdown {
    position: relative;
}
.app-navbar .dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.85rem;
    font-size: 0.855rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
}
.app-navbar .dropdown-item:hover {
    background: var(--gray-50);
    color: var(--gray-900);
}
.app-navbar .dropdown-item i {
    font-size: 0.95rem;
    width: 1.4rem;
}
.app-navbar .dropdown-item.text-danger:hover {
    background: var(--color-ausgabe-light);
    color: #be123c;
}

/* =============================================
   MAIN CONTENT
   ============================================= */
main.container-fluid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem !important;
}

/* =============================================
   CARD GRID
   ============================================= */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
@media (min-width: 992px) {
    .card-grid { grid-template-columns: repeat(3, 1fr); }
    .card-grid:has(> :nth-child(5)) { grid-template-columns: repeat(5, 1fr); }
    .card-grid:has(> :nth-child(4)):not(:has(> :nth-child(5))) { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 575.98px) {
    .card-grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
    .card-grid-4 { grid-template-columns: 1fr 1fr; }
    .summary-card { padding: 0.75rem 0.65rem; }
    .summary-card .amount { font-size: 1.1rem; }
    .summary-card .label { font-size: 0.62rem; letter-spacing: 0.02em; word-break: break-word; }
}
@media (min-width: 576px) {
    .card-grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* =============================================
   SUMMARY CARDS - Glassmorphism Style
   ============================================= */
.summary-card {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.35rem;
    background: #fff;
    transition: var(--transition);
    height: 100%;
    box-shadow: var(--shadow-xs);
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}
.summary-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gray-200);
    transition: var(--transition);
}
.summary-card::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 80px; height: 80px;
    border-radius: 50%;
    background: var(--gray-50);
    transform: translate(25px, -25px);
    transition: var(--transition);
    opacity: 0;
}
.summary-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--gray-300);
}
.summary-card:hover::after {
    opacity: 1;
}

.summary-card .amount {
    font-size: 1.65rem;
    font-weight: 800;
    text-align: right;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.summary-card .label {
    color: var(--gray-500);
    font-size: 0.76rem;
    font-weight: 600;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.summary-card .label i:first-child {
    font-size: 0.95rem;
}
.summary-card .btn {
    margin-top: 0.75rem;
    position: relative;
    z-index: 1;
}

.amount-einnahme { color: var(--color-einnahme); }
.amount-ausgabe { color: var(--color-ausgabe); }
.amount-afa { color: var(--color-afa); }
.amount-gewinn { color: var(--color-gewinn); }
.amount-verlust { color: var(--color-verlust); }
.amount-betriebskosten { color: var(--color-betriebskosten); }

/* Card top-border gradients */
.card-grid .summary-card:nth-child(1)::before,
.summary-card.card-einnahme::before { background: linear-gradient(90deg, var(--color-einnahme), #34d399); }
.card-grid .summary-card:nth-child(2)::before,
.summary-card.card-ausgabe::before { background: linear-gradient(90deg, var(--color-ausgabe), #fb7185); }
.card-grid .summary-card:nth-child(3)::before,
.summary-card.card-afa::before { background: linear-gradient(90deg, var(--color-afa), #a78bfa); }
.card-grid .summary-card:nth-child(4)::before,
.summary-card.card-result::before { background: linear-gradient(90deg, var(--color-gewinn), #34d399); }
.card-grid .summary-card:nth-child(5)::before { background: linear-gradient(90deg, var(--color-betriebskosten), #fbbf24); }
.summary-card .amount-betriebskosten { color: var(--color-betriebskosten); }

/* =============================================
   BADGES
   ============================================= */
.badge-einnahme {
    background-color: var(--color-einnahme-light) !important;
    color: #065f46 !important;
    font-weight: 600;
}
.badge-ausgabe {
    background-color: var(--color-ausgabe-light) !important;
    color: #9f1239 !important;
    font-weight: 600;
}
.badge-afa {
    background-color: var(--color-afa-light) !important;
    color: #5b21b6 !important;
    font-weight: 600;
}

/* =============================================
   TABLES
   ============================================= */
.table {
    font-size: 0.88rem;
}
.table th {
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
    border-bottom: 2px solid var(--gray-200);
    padding: 0.75rem 1rem;
    white-space: nowrap;
}
.table td {
    vertical-align: middle;
    padding: 0.75rem 1rem;
    border-bottom-color: var(--gray-100);
    color: var(--gray-700);
}
.table tbody tr {
    transition: background var(--transition-fast);
}
.table tbody tr:hover {
    background: var(--gray-50);
}

/* DataTables overrides */
.dataTables_wrapper .dataTables_filter input {
    border: 1.5px solid var(--gray-200) !important;
    border-radius: var(--radius-sm) !important;
    padding: 0.45rem 0.75rem !important;
    font-size: 0.88rem !important;
    transition: var(--transition);
}
.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--primary-light) !important;
    box-shadow: 0 0 0 4px rgba(99,102,241,0.1) !important;
    outline: none;
}
.dataTables_wrapper .dataTables_length select {
    border: 1.5px solid var(--gray-200) !important;
    border-radius: var(--radius-sm) !important;
    padding: 0.35rem 0.5rem !important;
    font-size: 0.88rem !important;
}
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_length label {
    font-size: 0.82rem;
    color: var(--gray-500);
}
.dataTables_wrapper .dataTables_paginate {
    margin-top: 0.75rem;
}
.dataTables_wrapper .dataTables_paginate ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 0.25rem;
    justify-content: flex-end;
}
.dataTables_wrapper .dataTables_paginate ul li {
    list-style: none;
}
.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: var(--radius-sm) !important;
    font-size: 0.85rem !important;
    padding: 0.35rem 0.75rem !important;
    list-style: none;
    transition: var(--transition-fast);
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--primary) !important;
    border-color: var(--primary) !important;
    color: #fff !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button:hover:not(.current) {
    background: var(--gray-100) !important;
    border-color: var(--gray-200) !important;
    color: var(--gray-700) !important;
}

/* =============================================
   CARDS & PANELS
   ============================================= */
.card {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
    background: #fff;
    overflow: hidden;
    transition: box-shadow var(--transition);
}
.card:hover {
    box-shadow: var(--shadow-sm);
}
.card-header {
    background: #fff;
    border-bottom: 1px solid var(--gray-100);
    font-weight: 700;
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    color: var(--gray-800);
}
.card-header h5 {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}
.card-header h5 i {
    color: var(--primary);
    font-size: 1.1rem;
}
.card-header h6 {
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.card-header h6 i {
    color: var(--primary);
}
.card-body {
    padding: 1.5rem;
}

/* =============================================
   INFO BOXES
   ============================================= */
.info-box {
    background: linear-gradient(135deg, var(--primary-50) 0%, #f5f3ff 100%);
    border: 1px solid var(--primary-100);
    border-left: 4px solid var(--primary);
    padding: 1rem 1.25rem;
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    color: var(--gray-700);
    line-height: 1.65;
    box-shadow: var(--shadow-xs);
}
.info-box i {
    color: var(--primary);
    margin-right: 0.35rem;
}

.help-text {
    color: var(--gray-400);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    line-height: 1.6;
    padding: 0.75rem 1rem;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    border: 1px dashed var(--gray-200);
}
.help-text i {
    color: var(--color-betriebskosten);
    margin-right: 0.25rem;
}

/* =============================================
   EMPTY STATES
   ============================================= */
.text-muted.fst-italic {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-400) !important;
    font-style: normal !important;
    padding: 0.5rem 0;
}

/* =============================================
   SECTION HEADERS
   ============================================= */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--gray-200);
}
.section-header h2 {
    font-size: 1.3rem;
    font-weight: 800;
    margin: 0;
    color: var(--gray-900);
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.section-header h2 i {
    color: var(--primary);
    font-size: 1.15rem;
}

.section-title {
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.75rem 0;
    border-bottom: 2px solid var(--primary);
    margin-bottom: 1rem;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.section-title i {
    font-size: 1.05rem;
}

/* =============================================
   YEAR SELECTOR
   ============================================= */
.year-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.year-selector select {
    min-width: 100px;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--gray-200);
    font-size: 0.88rem;
    font-weight: 500;
    padding: 0.45rem 0.75rem;
    transition: var(--transition);
}
.year-selector select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(99,102,241,0.1);
}

/* =============================================
   BUTTONS - Modern with gradients
   ============================================= */
.btn {
    font-weight: 600;
    font-size: 0.855rem;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    transition: var(--transition);
    letter-spacing: -0.01em;
    cursor: pointer;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    color: #fff !important;
    box-shadow: 0 1px 3px rgba(99,102,241,0.2), 0 0 0 1px rgba(99,102,241,0.1) inset;
}
.btn-primary:hover, .btn-primary:focus {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #4338ca 100%);
    color: #fff !important;
    box-shadow: 0 6px 16px rgba(99,102,241,0.3);
    transform: translateY(-1px);
}
.btn-success {
    background: linear-gradient(135deg, var(--color-einnahme) 0%, #059669 100%);
    border: none;
    color: #fff !important;
    box-shadow: 0 1px 3px rgba(16,185,129,0.2);
}
.btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: #fff !important;
    box-shadow: 0 6px 16px rgba(16,185,129,0.3);
    transform: translateY(-1px);
}
.btn-danger {
    background: linear-gradient(135deg, var(--color-ausgabe) 0%, #e11d48 100%);
    border: none;
    color: #fff !important;
}
.btn-danger:hover {
    background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
    color: #fff !important;
    box-shadow: 0 6px 16px rgba(244,63,94,0.3);
    transform: translateY(-1px);
}
.btn-outline-primary {
    color: var(--primary);
    border: 1.5px solid var(--primary-200);
    background: transparent;
}
.btn-outline-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(99,102,241,0.25);
    transform: translateY(-1px);
}
.btn-outline-secondary {
    color: var(--gray-500);
    border: 1.5px solid var(--gray-200);
}
.btn-outline-secondary:hover {
    background: var(--gray-100);
    color: var(--gray-700);
    border-color: var(--gray-300);
}
.btn-outline-danger {
    color: var(--color-ausgabe);
    border: 1.5px solid rgba(244,63,94,0.3);
    background: transparent;
}
.btn-outline-danger:hover {
    background: var(--color-ausgabe);
    border-color: var(--color-ausgabe);
    color: #fff;
    box-shadow: 0 4px 12px rgba(244,63,94,0.25);
    transform: translateY(-1px);
}
.btn-warning {
    background: linear-gradient(135deg, var(--color-betriebskosten) 0%, #d97706 100%);
    border: none;
    color: #fff;
}
.btn-warning:hover {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    color: #fff;
    transform: translateY(-1px);
}
.btn-sm {
    padding: 0.3rem 0.65rem;
    font-size: 0.8rem;
    border-radius: 7px;
}

/* =============================================
   FORMS - Clean modern inputs
   ============================================= */
.form-label {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--gray-600);
    margin-bottom: 0.35rem;
    letter-spacing: 0.01em;
}
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--gray-200);
    padding: 0.55rem 0.85rem;
    font-size: 0.88rem;
    transition: var(--transition);
    color: var(--gray-800);
    background: #fff;
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(99,102,241,0.08);
}
.form-control::placeholder {
    color: var(--gray-300);
}
.form-text {
    font-size: 0.76rem;
    color: var(--gray-400);
    margin-top: 0.3rem;
}
.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}
.input-group-text {
    border: 1.5px solid var(--gray-200);
    background: var(--gray-50);
    color: var(--gray-400);
    font-size: 0.88rem;
    border-radius: var(--radius-sm);
}

/* =============================================
   ALERTS - Refined with modern feel
   ============================================= */
.alert {
    border-radius: var(--radius);
    border: none;
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: var(--shadow-xs);
    padding: 0.9rem 1.15rem;
}
.alert-success {
    background: linear-gradient(135deg, var(--color-einnahme-light) 0%, #ecfdf5 100%);
    color: #065f46;
    border-left: 4px solid var(--color-einnahme);
}
.alert-danger {
    background: linear-gradient(135deg, var(--color-ausgabe-light) 0%, #fff1f2 100%);
    color: #9f1239;
    border-left: 4px solid var(--color-ausgabe);
}
.alert-warning {
    background: linear-gradient(135deg, var(--color-betriebskosten-light) 0%, #fffbeb 100%);
    color: #92400e;
    border-left: 4px solid var(--color-betriebskosten);
}
.alert-info {
    background: linear-gradient(135deg, #eff6ff 0%, var(--primary-50) 100%);
    color: #3730a3;
    border-left: 4px solid var(--primary);
}
.alert i {
    font-size: 1.05rem;
    flex-shrink: 0;
}
.alert .btn {
    white-space: nowrap;
    flex-shrink: 0;
}

/* =============================================
   MODALS
   ============================================= */
.modal-content {
    border: none;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(0,0,0,0.05);
}
.modal-header {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: 1.15rem 1.5rem;
}
.modal-header .modal-title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--gray-800);
}
.modal-header .btn-close {
    opacity: 0.4;
    transition: var(--transition-fast);
}
.modal-header .btn-close:hover {
    opacity: 0.8;
}
.modal-body {
    padding: 1.5rem;
}
.modal-footer {
    border-top: 1px solid var(--gray-100);
    padding: 1rem 1.5rem;
}

/* =============================================
   ARBEITSZIMMER OPTIONS
   ============================================= */
.arbeitszimmer-options {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-top: 1rem;
}
.arbeitszimmer-options h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gray-700);
}

/* =============================================
   REPORT PAGE
   ============================================= */
.bericht-section {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--gray-200);
    transition: box-shadow var(--transition);
}
.bericht-section:hover {
    box-shadow: var(--shadow-sm);
}
.bericht-section .section-title {
    font-size: 0.92rem;
}

.bericht-summary {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}
.bericht-summary table { margin-bottom: 0; }
.bericht-summary .gewinn-row {
    font-weight: 700;
    font-size: 1.05rem;
}
.bericht-summary .gewinn-row.verlust {
    background: linear-gradient(90deg, var(--color-ausgabe), #e11d48);
    color: #fff;
}
.bericht-summary .gewinn-row.verlust td {
    border: none;
}
.bericht-summary .gewinn-row.gewinn {
    background: linear-gradient(90deg, var(--color-einnahme), #059669);
    color: #fff;
}
.bericht-summary .gewinn-row.gewinn td {
    border: none;
}
.zwischensumme {
    font-weight: 600;
    background-color: var(--gray-50);
}

/* =============================================
   ABSETZBAR DISPLAY
   ============================================= */
.absetzbar-display {
    background: linear-gradient(135deg, var(--color-einnahme-light) 0%, #ecfdf5 100%);
    border-left: 4px solid var(--color-einnahme);
    padding: 1rem 1.25rem;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-top: 1rem;
    font-weight: 700;
    color: #065f46;
    font-size: 0.95rem;
    box-shadow: var(--shadow-xs);
}

/* =============================================
   FOOTER - Modern Dark Footer
   ============================================= */
.app-footer {
    background: var(--gray-900);
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 1.5rem 0;
    margin-top: 0;
}
.app-footer .container-fluid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem !important;
}
.app-footer p {
    color: var(--gray-400);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.01em;
}
.app-footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.app-footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255,255,255,0.5);
    font-size: 0.8rem;
    font-weight: 600;
}
.app-footer-brand .footer-icon {
    width: 24px; height: 24px;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.7rem;
}
.app-footer-meta {
    color: var(--gray-500);
    font-size: 0.72rem;
    font-weight: 400;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
    .summary-card .amount {
        font-size: 1.25rem;
    }
    .summary-card .label {
        font-size: 0.7rem;
    }
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    main.container-fluid {
        padding: 1.25rem 1rem;
    }
    .app-footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* =============================================
   PRINT
   ============================================= */
@media print {
    .app-navbar, .app-footer, .btn, .no-print {
        display: none !important;
    }
    body { background: #fff; }
    .bericht-section, .bericht-summary {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* =============================================
   ANIMATIONS
   ============================================= */
.fade-in {
    animation: fadeIn 0.4s ease-out;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =============================================
   TOOLTIP & HELP ICONS
   ============================================= */
.help-icon {
    color: var(--gray-300);
    cursor: help;
    font-size: 0.85rem;
    margin-left: 0.2rem;
    transition: color var(--transition-fast);
}
.help-icon:hover {
    color: var(--primary);
}

/* =============================================
   STATUS INDICATORS
   ============================================= */
.status-aktiv { color: var(--color-einnahme); font-weight: 600; }
.status-inaktiv { color: var(--gray-400); }
.status-abgeschrieben { color: var(--color-afa); font-weight: 600; }

/* =============================================
   SCROLLBAR (Webkit)
   ============================================= */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--gray-50);
}
::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* =============================================
   SELECTION
   ============================================= */
::selection {
    background: var(--primary-100);
    color: var(--primary-dark);
}