:root {
            --bg-primary: #0d0d11;
            --bg-secondary: #13131a;
            --bg-tertiary: #1a1a25;
            --bg-card: linear-gradient(135deg, rgba(25, 25, 35, 0.7) 0%, rgba(30, 30, 45, 0.7) 100%);
            --bg-card-hover: linear-gradient(135deg, rgba(35, 35, 50, 0.85) 0%, rgba(40, 40, 60, 0.85) 100%);
            --text-primary: #ffffff;
            --text-secondary: #c0c0d0;
            --text-muted: #8a8a9e;
            --accent-primary: #0a84ff;
            --accent-secondary: #409cff;
            --accent-gradient: linear-gradient(135deg, #0a84ff 0%, #409cff 100%);
            --success: #10b981;
            --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
            --warning: #f59e0b;
            --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            --danger: #ef4444;
            --danger-gradient: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
            --info: #06b6d4;
            --orange: #f59e0b;
            --glass: rgba(255, 255, 255, 0.05);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-bg: rgba(20, 20, 30, 0.75);
            --border-radius: 20px;
            --border-radius-small: 16px;
            --border-radius-tiny: 12px;
            --shadow-base: 0 8px 32px rgba(0, 0, 0, 0.3);
            --shadow-elevated: 0 16px 48px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 32px rgba(10, 132, 255, 0.3);
            --glow-accent: 0 0 30px rgba(10, 132, 255, 0.3);
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            font-weight: 400;
            padding: max(2rem, env(safe-area-inset-top)) 
                     max(2rem, env(safe-area-inset-right)) 
                     max(2rem, env(safe-area-inset-bottom)) 
                     max(2rem, env(safe-area-inset-left));
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 15% 25%, rgba(10, 132, 255, 0.12) 0%, transparent 50%),
                radial-gradient(circle at 85% 75%, rgba(64, 156, 255, 0.10) 0%, transparent 50%),
                radial-gradient(circle at 45% 10%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 90%, rgba(10, 132, 255, 0.08) 0%, transparent 50%);
            animation: backgroundShift 25s ease-in-out infinite;
            pointer-events: none;
            z-index: -1;
        }

        @keyframes backgroundShift {
            0%, 100% { opacity: 1; transform: scale(1) rotate(0deg); }
            33% { opacity: 0.8; transform: scale(1.05) rotate(1deg); }
            66% { opacity: 0.9; transform: scale(0.98) rotate(-0.5deg); }
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0;
        }

        .header {
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
        }

        .header::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(10, 132, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            filter: blur(60px);
            z-index: -1;
            animation: headerGlow 6s ease-in-out infinite;
        }

        @keyframes headerGlow {
            0%, 100% { opacity: 0.8; transform: translate(-50%, -50%) scale(1); }
            50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
        }

        .header h1 {
            font-size: 4rem;
            font-weight: 700;
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
            animation: titleFloat 4s ease-in-out infinite;
        }

        @keyframes titleFloat {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-5px); }
        }

        .header p {
            font-size: 1.3rem;
            color: var(--text-secondary);
            font-weight: 500;
            max-width: 600px;
            margin: 0 auto;
        }

        .back-button-container {
            margin-bottom: 2rem;
        }

        .back-button {
            background: var(--bg-card);
            color: var(--text-primary);
            border: 1px solid var(--glass-border);
            padding: 1rem 2rem;
            border-radius: var(--border-radius-small);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            backdrop-filter: blur(20px);
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            font-family: 'Inter', sans-serif;
            box-shadow: var(--shadow-base);
            min-height: 44px;
        }

        .back-button:hover {
            background: var(--accent-gradient);
            border-color: transparent;
            transform: translateY(-3px);
            box-shadow: var(--shadow-elevated), var(--shadow-glow) rgba(10, 132, 255, 0.4);
        }

        .controls {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            flex-wrap: wrap;
            gap: 1rem;
            background: var(--glass);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-base);
        }

        .btn {
            padding: 0.875rem 1.75rem;
            border: none;
            border-radius: var(--border-radius-tiny);
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            font-family: 'Inter', sans-serif;
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
            min-height: 44px;
            --pointer-angle: 325deg;
        }

        .btn::after {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: inherit;
            box-shadow: 0 0 2px 1.2px hsl(0 0% 100% / 0.7) inset;
            mask: linear-gradient(
                var(--pointer-angle),
                #ffffff80,
                #ffffff30 30% 60%,
                #fff
            );
            pointer-events: none;
            opacity: 1;
            transition: opacity 0.3s ease;
            z-index: 10;
        }

        .btn:hover::after {
            opacity: 1;
        }

        .btn-primary {
            background: var(--accent-gradient);
            color: white;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-elevated);
        }

        .btn-secondary {
            background: var(--glass);
            color: var(--text-primary);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(20px);
        }

        .btn-secondary:hover {
            background: var(--bg-card-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-base);
        }

        .btn-success {
            background: var(--success-gradient);
            color: white;
            box-shadow: var(--shadow-glow) rgba(16, 185, 129, 0.3);
        }

        .btn-success:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-elevated), var(--shadow-glow) rgba(16, 185, 129, 0.5);
        }

        .btn-warning {
            background: var(--warning-gradient);
            color: white;
            box-shadow: var(--shadow-glow) rgba(245, 158, 11, 0.3);
        }

        .btn-warning:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-elevated), var(--shadow-glow) rgba(245, 158, 11, 0.5);
        }

        .btn-danger {
            background: var(--danger-gradient);
            color: white;
            box-shadow: var(--shadow-glow) rgba(239, 68, 68, 0.3);
        }

        .btn-danger:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-elevated), var(--shadow-glow) rgba(239, 68, 68, 0.5);
        }

        .btn-sm {
            padding: 0.625rem 1.25rem;
            font-size: 0.9rem;
            min-height: 40px;
        }

        .btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none !important;
        }

        .calendar-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            background: var(--glass);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-base);
        }

        .nav-btn {
            background: var(--accent-gradient);
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: var(--border-radius-tiny);
            cursor: pointer;
            font-size: 1.5rem;
            font-weight: 700;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            min-width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            --pointer-angle: 325deg;
        }

        .nav-btn::after {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: inherit;
            box-shadow: 0 0 2px 1.9px hsl(0 0% 100% / 0.7) inset;
            mask: linear-gradient(
                var(--pointer-angle),
                #ffffff80,
                #ffffff30 30% 60%,
                #fff
            );
            pointer-events: none;
            opacity: 1;
            transition: opacity 0.3s ease;
            z-index: 10;
        }

        .nav-btn:hover {
            transform: translateY(-3px) scale(1.05);
            box-shadow: var(--shadow-elevated);
        }

        .nav-btn:hover::after {
            opacity: 1;
        }

        .month-year {
            font-size: 2.5rem;
            font-weight: 700;
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.01em;
            text-align: center;
            flex: 1;
        }

        .calendar {
            background: var(--glass);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-elevated);
            animation: fadeInUp 0.8s ease-out;
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(40px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .calendar-header {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            background: var(--accent-gradient);
            color: white;
        }

        .calendar-header div {
            padding: 1.5rem;
            text-align: center;
            font-weight: 600;
            font-size: 1.1rem;
            letter-spacing: 0.5px;
        }

        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 2px;
            background: var(--bg-tertiary);
            padding: 2px;
        }

        .calendar-day {
            background: var(--bg-secondary);
            min-height: 140px;
            padding: 1rem;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            border: 2px solid transparent;
            border-radius: 8px;
            margin: 1px;
            overflow: hidden;
            --pointer-angle: 325deg;
        }

        .calendar-day::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: inherit;
            box-shadow: 0 0 2px 2.0px hsl(0 0% 100% / 0.9) inset;
            mask: linear-gradient(
                var(--pointer-angle),
                #ffffff80,
                #ffffff30 30% 60%,
                #fff
            );
            pointer-events: none;
            opacity: 1;
            transition: opacity 0.9s ease;
            z-index: 1;
        }

        .calendar-day:hover {
            background: var(--bg-card-hover);
            transform: scale(1.02);
            box-shadow: var(--shadow-base);
            z-index: 10;
        }

        .calendar-day:hover::before {
            opacity: 1;
        }

        .calendar-day.other-month {
            background: rgba(255, 255, 255, 0.02);
            color: var(--text-muted);
            opacity: 0.4;
        }

        .calendar-day.today {
            background: var(--bg-card);
        }

        .calendar-day.has-appointments {
            background: var(--bg-card);
        }

        .calendar-day.has-appointments::after {
            content: '';
            position: absolute;
            top: 8px;
            left: 8px;
            width: 8px;
            height: 8px;
            background: var(--warning);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        .calendar-day.has-appointments:hover {
            background: var(--bg-card-hover);
        }

        .calendar-day.day-full {
            background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(239, 68, 68, 0.05));
            border-color: var(--danger);
            opacity: 0.8;
        }

        .calendar-day.day-full:hover {
            background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.08));
            box-shadow: var(--shadow-glow) rgba(239, 68, 68, 0.3);
            cursor: not-allowed;
        }

        .calendar-day.day-locked {
            background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(239, 68, 68, 0.1));
            border-color: var(--danger);
            opacity: 0.7;
        }

        .calendar-day.day-locked:hover {
            cursor: not-allowed;
        }

        .day-number {
            font-weight: 700;
            margin-bottom: 0.75rem;
            font-size: 1.2rem;
            color: var(--text-primary);
        }

        /* LÖSUNG FÜR LANGE NAMEN - WICHTIG! */
        .appointment-indicator {
            background: var(--accent-gradient);
            color: white;
            font-size: 0.75rem;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            margin-bottom: 0.25rem;
            display: block;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            font-weight: 500;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
            max-width: 100%;
        }

        .appointment-indicator.attended {
            background: var(--success-gradient);
        }

        .appointment-indicator.not-attended {
            background: var(--danger-gradient);
        }

        .appointment-indicator.archived {
            background: linear-gradient(135deg, var(--text-muted), #6c757d);
        }

        .appointment-count {
            position: absolute;
            top: 0.75rem;
            right: 0.75rem;
            background: var(--warning-gradient);
            color: white;
            border-radius: 50%;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            box-shadow: var(--shadow-glow) rgba(245, 158, 11, 0.4);
            animation: bounce 2s infinite;
        }

        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
            40% { transform: translateY(-3px); }
            60% { transform: translateY(-2px); }
        }

        .day-locked-indicator {
            position: absolute;
            top: 0.75rem;
            right: 0.75rem;
            background: var(--danger-gradient);
            color: white;
            border-radius: 50%;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 700;
            animation: pulse 2s infinite;
            box-shadow: var(--shadow-glow) rgba(239, 68, 68, 0.4);
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.1); opacity: 0.8; }
        }

        .limit-info {
            position: absolute;
            bottom: 0.5rem;
            left: 0.5rem;
            background: var(--accent-gradient);
            color: white;
            font-size: 0.7rem;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            font-weight: 600;
            backdrop-filter: blur(10px);
        }

        .limit-info.limit-full {
            background: var(--danger-gradient);
        }

        .limit-info.locked {
            background: var(--danger-gradient);
            color: white;
            font-size: 0.6rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }

        .modal {
            display: none;
            position: fixed;
            z-index: 2000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(20px);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .modal.show {
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 1;
        }

        .modal-content {
            background: var(--bg-secondary);
            border: 1px solid var(--glass-border);
            border-radius: var(--border-radius);
            padding: 0;
            width: 95%;
            max-width: 900px;
            max-height: 90vh;
            overflow: hidden;
            transform: scale(0.9);
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: var(--shadow-elevated);
            backdrop-filter: blur(20px);
        }

        .modal.show .modal-content {
            transform: scale(1);
        }

        .modal-header {
            background: var(--accent-gradient);
            color: white;
            padding: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .modal-header h2 {
            margin: 0;
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .close {
            color: white;
            font-size: 28px;
            font-weight: bold;
            cursor: pointer;
            line-height: 1;
            padding: 0.5rem;
            border-radius: var(--border-radius-tiny);
            transition: all 0.3s ease;
            background: rgba(255, 255, 255, 0.1);
            min-width: 44px;
            min-height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .close:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: scale(1.1);
        }

        .modal-body {
            padding: 2rem;
            max-height: 60vh;
            overflow-y: auto;
        }

        .modal-body::-webkit-scrollbar {
            width: 12px;
        }

        .modal-body::-webkit-scrollbar-track {
            background: var(--bg-tertiary);
            border-radius: 6px;
        }

        .modal-body::-webkit-scrollbar-thumb {
            background: var(--accent-gradient);
            border-radius: 6px;
            border: 2px solid var(--bg-tertiary);
        }

        .modal-body::-webkit-scrollbar-thumb:hover {
            background: var(--accent-secondary);
        }

        .day-appointments {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .appointment-card {
            background: var(--bg-card);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--border-radius-small);
            padding: 2rem;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            animation: slideInUp 0.6s ease-out;
            --pointer-angle: 325deg;
        }

        @keyframes slideInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .appointment-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent-gradient);
            opacity: 0.8;
            z-index: 1;
        }

        .appointment-card::after {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: inherit;
            box-shadow: 0 0 2px 1.7px hsl(0 0% 100% / 0.9) inset;
            mask: linear-gradient(
                var(--pointer-angle),
                #ffffff80,
                #ffffff30 30% 60%,
                #fff
            );
            pointer-events: none;
            opacity: 1;
            transition: opacity 0.3s ease;
            z-index: 10;
        }

        .appointment-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-elevated);
        }

        .appointment-card:hover::after {
            opacity: 1;
        }

        .appointment-card.attended::before {
            background: var(--success-gradient);
        }

        .appointment-card.not-attended::before {
            background: var(--danger-gradient);
        }

        .appointment-card.pending::before {
            background: var(--warning-gradient);
        }

        .appointment-card.archived {
            opacity: 0.7;
        }

        .appointment-card.archived::before {
            background: linear-gradient(90deg, var(--text-muted), #6c757d);
        }

        .appointment-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 2rem;
        }

        .customer-name {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .appointment-time {
            background: var(--accent-gradient);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius-tiny);
            font-size: 1rem;
            font-weight: 600;
        }

        .status-badge {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            backdrop-filter: blur(10px);
        }

        .status-pending {
            background: rgba(245, 158, 11, 0.2);
            color: var(--warning);
            border: 1px solid var(--warning);
        }

        .status-attended {
            background: rgba(16, 185, 129, 0.2);
            color: var(--success);
            border: 1px solid var(--success);
        }

        .status-not-attended {
            background: rgba(239, 68, 68, 0.2);
            color: var(--danger);
            border: 1px solid var(--danger);
        }

        .status-archived {
            background: rgba(158, 158, 158, 0.2);
            color: var(--text-muted);
            border: 1px solid var(--text-muted);
        }

        .appointment-details {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .detail-item {
            background: var(--glass);
            padding: 1.25rem;
            border-radius: var(--border-radius-tiny);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }

        .detail-item:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .detail-label {
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .detail-value {
            color: var(--text-primary);
            font-size: 1.1rem;
            line-height: 1.4;
            font-weight: 500;
            word-wrap: break-word;
            white-space: pre-line;
        }

        .price-value {
            color: var(--success);
            font-weight: 700;
            font-size: 1.3rem;
        }

        .price-value::after {
            content: ' €';
            font-size: 1rem;
            color: var(--text-secondary);
        }

        .problem-description {
            grid-column: 1 / -1;
        }

        .notes-item {
            grid-column: 1 / -1;
        }

        .appointment-actions {
            display: flex;
            gap: 0.75rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .form-group {
            margin-bottom: 2rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.75rem;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 1rem;
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            background: var(--glass);
            border: 1px solid var(--glass-border);
            border-radius: var(--border-radius-tiny);
            padding: 1.25rem;
            color: var(--text-primary);
            font-size: 16px;
            transition: all 0.3s ease;
            backdrop-filter: blur(20px);
            font-family: 'Inter', sans-serif;
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            background: rgba(255, 255, 255, 0.08);
        }

        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }

        .form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            background-size: 1rem;
            padding-right: 3rem;
            cursor: pointer;
        }

        .form-group select:focus {
            background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23007aff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
        }

        .form-group select option {
            background: var(--bg-secondary);
            color: var(--text-primary);
            padding: 0.75rem;
        }

        .form-row {
            display: flex;
            gap: 2rem;
        }

        .form-row .form-group {
            flex: 1;
        }

        .form-group input[type="checkbox"] {
            width: 20px;
            height: 20px;
            margin: 0;
            appearance: none;
            background: var(--glass);
            border: 2px solid var(--glass-border);
            border-radius: 6px;
            cursor: pointer;
            position: relative;
            transition: all 0.3s ease;
        }

        .form-group input[type="checkbox"]:checked {
            background: var(--accent-gradient);
        }

        .form-group input[type="checkbox"]:checked::after {
            content: '✓';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            color: white;
            font-weight: bold;
            font-size: 14px;
        }

        .form-group input[type="checkbox"]:focus {
            box-shadow: none;
        }

        .form-group label[style*="cursor: pointer"] {
            transition: color 0.3s ease;
        }

        .form-group label[style*="cursor: pointer"]:hover {
            color: var(--text-primary);
        }

        .modal-footer {
            padding: 2rem;
            border-top: 1px solid var(--glass-border);
            display: flex;
            justify-content: flex-end;
            gap: 1rem;
            background: rgba(255, 255, 255, 0.02);
            backdrop-filter: blur(20px);
        }

        .loading {
            display: none;
            text-align: center;
            padding: 4rem 2rem;
            color: var(--text-secondary);
            background: var(--glass);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-base);
        }

        .loading::after {
            content: '';
            display: inline-block;
            width: 40px;
            height: 40px;
            border: 4px solid var(--glass-border);
            border-top: 4px solid var(--accent-primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-left: 1rem;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .empty-day {
            text-align: center;
            padding: 4rem 2rem;
            color: var(--text-secondary);
        }

        .empty-day-icon {
            font-size: 5rem;
            margin-bottom: 2rem;
            opacity: 0.6;
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
        }

        .empty-day h3 {
            font-size: 1.8rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
            font-weight: 600;
        }

        .empty-day p {
            font-size: 1.1rem;
            line-height: 1.6;
            margin-bottom: 2rem;
            max-width: 400px;
            margin-left: auto;
            margin-right: auto;
        }

        .limit-warning {
            background: rgba(245, 158, 11, 0.1);
            color: var(--warning);
            padding: 1rem 1.5rem;
            border-radius: var(--border-radius-tiny);
            margin: 1.5rem 0;
            font-size: 1rem;
            font-weight: 600;
            border: 1px solid var(--warning);
            backdrop-filter: blur(10px);
        }

        .limit-warning.limit-reached {
            background: rgba(239, 68, 68, 0.1);
            color: var(--danger);
            border-color: var(--danger);
        }

        .day-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding: 1.5rem;
            background: var(--glass);
            border-radius: var(--border-radius-tiny);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
        }

        .limit-info-detailed {
            font-size: 1rem;
            font-weight: 600;
            color: var(--success);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .limit-info-detailed.limit-reached {
            color: var(--danger);
        }

        .toast {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            padding: 1.25rem 2rem;
            border-radius: var(--border-radius-tiny);
            color: white;
            font-weight: 600;
            z-index: 2001;
            animation: toastSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: var(--shadow-elevated);
            max-width: 400px;
        }

        .toast.success {
            background: var(--success-gradient);
            box-shadow: var(--shadow-elevated), var(--shadow-glow) rgba(16, 185, 129, 0.4);
        }

        .toast.error {
            background: var(--danger-gradient);
            box-shadow: var(--shadow-elevated), var(--shadow-glow) rgba(239, 68, 68, 0.4);
        }

        .toast.warning {
            background: var(--warning-gradient);
            box-shadow: var(--shadow-elevated), var(--shadow-glow) rgba(245, 158, 11, 0.4);
        }

        @keyframes toastSlideIn {
            from { transform: translateX(100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }

        .toast-container {
            max-width: 400px;
        }

        .appointment-card:nth-child(1) { animation-delay: 0s; }
        .appointment-card:nth-child(2) { animation-delay: 0.1s; }
        .appointment-card:nth-child(3) { animation-delay: 0.2s; }
        .appointment-card:nth-child(4) { animation-delay: 0.3s; }
        .appointment-card:nth-child(5) { animation-delay: 0.4s; }

        .btn:focus,
        .nav-btn:focus,
        .back-button:focus {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        .calendar-day:focus {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        /* MOBILE RESPONSIVE - OPTIMIERT FÜR iOS & iPAD */
        @media (max-width: 768px) {
            body {
                padding: max(1rem, env(safe-area-inset-top)) 
                         max(1rem, env(safe-area-inset-right)) 
                         max(1rem, env(safe-area-inset-bottom)) 
                         max(1rem, env(safe-area-inset-left));
            }

            .container {
                padding: 0;
            }

            .header h1 {
                font-size: 2.5rem;
            }

            .header p {
                font-size: 1.1rem;
                padding: 0 1rem;
            }

            .back-button {
                width: 100%;
                justify-content: center;
                padding: 1.25rem;
                font-size: 1.1rem;
            }

            .controls {
                flex-direction: column;
                align-items: stretch;
                gap: 1rem;
                padding: 1rem;
            }

            .controls > * {
                width: 100%;
            }

            .btn {
                justify-content: center;
                width: 100%;
            }

            .calendar-nav {
                flex-direction: column;
                gap: 1.5rem;
                text-align: center;
                padding: 1.5rem;
            }

            .nav-btn {
                min-width: 50px;
                height: 50px;
            }

            .month-year {
                font-size: 1.8rem;
            }

            .calendar-header div {
                padding: 1rem 0.5rem;
                font-size: 0.9rem;
            }

            .calendar-day {
                min-height: 100px;
                padding: 0.5rem;
            }

            .day-number {
                font-size: 1rem;
                margin-bottom: 0.5rem;
            }

            .appointment-indicator {
                font-size: 0.65rem;
                padding: 0.2rem 0.4rem;
                margin-bottom: 0.2rem;
            }

            .appointment-count {
                width: 22px;
                height: 22px;
                font-size: 0.7rem;
                top: 0.5rem;
                right: 0.5rem;
            }

            .day-locked-indicator {
                width: 20px;
                height: 20px;
                font-size: 0.75rem;
                top: 0.5rem;
                right: 0.5rem;
            }

            .limit-info {
                font-size: 0.65rem;
                padding: 0.2rem 0.4rem;
                bottom: 0.4rem;
                left: 0.4rem;
            }

            .modal-content {
                width: 95%;
                margin: 1rem;
                max-height: 90vh;
            }

            .modal-header {
                padding: 1.5rem;
            }

            .modal-header h2 {
                font-size: 1.5rem;
            }

            .modal-body {
                padding: 1.5rem;
                max-height: 65vh;
            }

            .modal-footer {
                padding: 1.5rem;
                flex-direction: column;
            }

            .modal-footer .btn {
                width: 100%;
            }

            .appointment-card {
                padding: 1.5rem;
            }

            .customer-name {
                font-size: 1.3rem;
            }

            .appointment-time {
                padding: 0.4rem 0.8rem;
                font-size: 0.9rem;
            }

            .status-badge {
                position: static;
                margin-bottom: 1rem;
                align-self: flex-start;
            }

            .appointment-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }

            .appointment-details {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .detail-item {
                padding: 1rem;
            }

            .form-row {
                flex-direction: column;
                gap: 0;
            }

            .appointment-actions {
                flex-direction: column;
                gap: 0.5rem;
            }

            .appointment-actions .btn {
                width: 100%;
            }

            .day-header {
                flex-direction: column;
                gap: 1rem;
                padding: 1rem;
            }

            .day-header .btn {
                width: 100%;
            }

            .toast-container {
                bottom: 1rem !important;
                right: 1rem !important;
                left: 1rem !important;
                max-width: none !important;
            }
            
            .toast {
                max-width: none !important;
            }

            .empty-day {
                padding: 3rem 1.5rem;
            }

            .empty-day-icon {
                font-size: 4rem;
            }

            .empty-day h3 {
                font-size: 1.5rem;
            }

            .empty-day p {
                font-size: 1rem;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: max(0.75rem, env(safe-area-inset-top)) 
                         max(0.75rem, env(safe-area-inset-right)) 
                         max(0.75rem, env(safe-area-inset-bottom)) 
                         max(0.75rem, env(safe-area-inset-left));
            }

            .header h1 {
                font-size: 2rem;
            }

            .header p {
                font-size: 1rem;
            }

            .calendar-day {
                min-height: 85px;
                padding: 0.4rem;
            }

            .day-number {
                font-size: 0.9rem;
                margin-bottom: 0.4rem;
            }

            .appointment-indicator {
                font-size: 0.6rem;
                padding: 0.15rem 0.3rem;
            }

            .appointment-count {
                width: 20px;
                height: 20px;
                font-size: 0.65rem;
            }

            .modal-header h2 {
                font-size: 1.3rem;
            }

            .customer-name {
                font-size: 1.2rem;
            }

            .month-year {
                font-size: 1.5rem;
            }
        }

        @media (min-width: 769px) and (max-width: 1024px) {
            .container {
                padding: 0;
            }

            .calendar-day {
                min-height: 120px;
            }

            .appointment-details {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-height: 600px) and (orientation: landscape) {
            .modal-content {
                max-height: 95vh;
            }

            .modal-body {
                max-height: 60vh;
            }

            .header h1 {
                font-size: 2rem;
            }

            .calendar-day {
                min-height: 90px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

        @media (hover: none) and (pointer: coarse) {
            .calendar-day:hover {
                transform: none;
            }

            .calendar-day:active {
                transform: scale(0.98);
            }

            .btn:active {
                transform: scale(0.95);
            }
        }

        @media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
            .appointment-indicator,
            .status-badge {
                image-rendering: -webkit-optimize-contrast;
                image-rendering: crisp-edges;
            }
        }