* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        /* Default light theme (CGDIS colors) */
        :root {
            --primary: #0057B8;
            /* CGDIS blue */
            --secondary: #E63946;
            /* Red */
            --light: #FFFFFF;
            --dark: #1D3557;
            --card-bg: rgba(255, 255, 255, 0.95);
            --body-bg: linear-gradient(135deg, #0057B8 0%, #1D3557 100%);
            --text-light: #FFFFFF;
            --text-dark: #222;
            --footer-border: rgba(255, 255, 255, 0.2);
            --eq1-color: #f39c12;
            --eq2-color: #3498db;
            --eq3-color: #2ecc71;
            --eq4-color: #9b59b6;
            --morning-shift: #ffeb3b;
            --afternoon-shift: #ff9800;
        }

        .hidden {
            display: none !important;
        }

        .dark-theme {
            --eq1-color: #d35400;
            --eq2-color: #2980b9;
            --eq3-color: #27ae60;
            --eq4-color: #8e44ad;
            --morning-shift: #f1c40f;
            --afternoon-shift: #e67e22;
            --primary: #0077FF;
            --secondary: #FF6B6B;
            --light: #121212;
            --dark: #f0f0f0;
            --card-bg: rgba(30, 30, 40, 0.9);
            --body-bg: linear-gradient(135deg, #0c1e3e 0%, #1a1a2e 100%);
            --text-light: #e0e0ff;
            --text-dark: #f0f0f0;

            --footer-border: rgba(100, 100, 255, 0.2);
        }

        body {
            background: var(--body-bg);
            color: var(--text-light);
            min-height: 100vh;
            padding: 20px;
            transition: background 0.4s ease, color 0.2s ease;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        header {
            text-align: center;
            padding: 30px 0;
            margin-bottom: 30px;
            position: relative;
        }

        .dark-btn,
        .settings-btn {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--primary);
            color: white;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
            transition: transform 0.2s, background 0.3s;
            border: none;
            font-size: 18px;
        }

        .dark-btn:hover,
        .settings-btn:hover {
            transform: rotate(30deg);
            background: var(--secondary);
        }

        .dark-btn:focus-visible,
        .settings-btn:focus-visible,
        .btn:focus-visible,
        .btn-shift:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 3px;
        }

        .logo-container {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
        }

        .logo {
            width: 70px;
            height: 70px;
            background: var(--light);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        }

        .logo i {
            color: var(--primary);
            font-size: 36px;
        }

        h1 {
            font-size: 2.8rem;
            font-weight: 700;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
            letter-spacing: 1px;
        }

        .subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .beta-badge {
            margin-top: 14px;
            display: inline-block;
            padding: 8px 14px;
            border-radius: 999px;
            background: rgba(230, 57, 70, 0.22);
            border: 1px solid rgba(230, 57, 70, 0.55);
            color: var(--text-light);
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.2px;
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }

        .tool-card {
            background: var(--card-bg);
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            color: var(--text-dark);
        }

        .tool-card.beta-feature {
            display: none;
        }

        .beta-features-enabled .tool-card.beta-feature {
            display: block;
        }

        .tool-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
        }

        .beta-features-enabled .tool-card {
            border: 1px solid rgba(0, 87, 184, 0.35);
        }

        .beta-features-enabled .tool-card:hover {
            transform: translateY(-10px) scale(1.01);
        }

        .card-header {
            background: var(--primary);
            color: white;
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 15px;
            position: relative;
        }

        .beta-chip {
            position: absolute;
            top: 12px;
            right: 12px;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.6px;
            background: rgba(230, 57, 70, 0.92);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.65);
            line-height: 1.1;
        }

        .card-header i {
            font-size: 28px;
        }

        .card-header h2 {
            font-size: 1.5rem;
            font-weight: 600;
        }

        .card-body {
            padding: 25px;
        }

        .card-body p {
            margin-bottom: 20px;
            line-height: 1.6;
            color: var(--text-dark);
            opacity: 0.9;
        }

        .btn {
            display: inline-block;
            background: var(--secondary);
            color: white;
            padding: 12px 25px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 2px solid var(--secondary);
            text-align: center;
            width: 100%;
            font-size: 1.05rem;
        }

        .btn:hover {
            background: transparent;
            color: var(--secondary);
            transform: scale(1.03);
        }

        .btn-compact {
            padding: 8px 16px;
            font-size: 0.95rem;
            width: auto;
        }

        .install-banner {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 16px;
            margin: 20px auto 30px;
            max-width: 800px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        .install-banner__icon {
            font-size: 24px;
            color: var(--primary);
        }

        .install-banner__content {
            flex: 1;
        }

        .settings-modal {
            position: fixed;
            inset: 0;
            z-index: 1100;
            display: grid;
            place-items: center;
            padding: 20px;
        }

        .settings-modal__backdrop {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            backdrop-filter: blur(2px);
        }

        .settings-modal__panel {
            position: relative;
            width: min(460px, 100%);
            max-height: min(90vh, 760px);
            overflow-y: auto;
            background: var(--card-bg);
            color: var(--text-dark);
            border-radius: 14px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
            padding: 22px;
            border: 1px solid rgba(0, 0, 0, 0.1);
        }

        .settings-modal__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
            gap: 12px;
        }

        .settings-modal__title {
            font-size: 1.35rem;
            font-weight: 700;
        }

        .settings-modal__close {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: none;
            background: rgba(0, 87, 184, 0.15);
            color: var(--text-dark);
            font-size: 1.5rem;
            line-height: 1;
            cursor: pointer;
            transition: background 0.2s ease, transform 0.2s ease;
        }

        .settings-modal__close:hover {
            background: rgba(230, 57, 70, 0.22);
            transform: scale(1.05);
        }

        .settings-list {
            display: grid;
            gap: 14px;
        }

        .settings-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 12px;
            border-radius: 10px;
            background: rgba(0, 87, 184, 0.08);
            border: 1px solid rgba(0, 87, 184, 0.2);
        }

        .settings-item__label {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        .settings-item select {
            min-width: 180px;
            border-radius: 8px;
            border: 1px solid rgba(0, 87, 184, 0.35);
            padding: 8px 10px;
            background: var(--light);
            color: var(--text-dark);
            font-size: 0.95rem;
        }

        .settings-switch {
            width: 20px;
            height: 20px;
            accent-color: var(--primary);
            cursor: pointer;
        }

        .settings-item select:focus-visible,
        .settings-switch:focus-visible,
        .settings-modal__close:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 3px;
        }

        .settings-modal__actions {
            margin-top: 18px;
            display: flex;
            justify-content: flex-end;
        }

        .settings-feedback {
            margin-top: 18px;
            padding-top: 16px;
            border-top: 1px solid rgba(0, 87, 184, 0.2);
            display: grid;
            gap: 12px;
        }

        .settings-feedback__title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
        }

        .settings-item--stack {
            flex-direction: column;
            align-items: flex-start;
        }

        .feedback-textarea {
            width: 100%;
            min-height: 90px;
            border-radius: 8px;
            border: 1px solid rgba(0, 87, 184, 0.35);
            padding: 10px 12px;
            font-size: 0.95rem;
            font-family: inherit;
            color: var(--text-dark);
            background: var(--light);
            resize: vertical;
        }

        .feedback-textarea:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 3px;
        }

        .feedback-send {
            width: 100%;
        }

        .emergency-btn {
            background: var(--secondary);
            padding: 18px;
            font-size: 1.3rem;
            margin-top: 20px;
            box-shadow: 0 5px 15px rgba(230, 57, 70, 0.4);
        }

        .emergency-btn:hover {
            background: #c1121f;
            transform: scale(1.05) translateY(-3px);
        }

        footer {
            text-align: center;
            padding: 20px;
            font-size: 0.9rem;
            opacity: 0.85;
            border-top: 1px solid var(--footer-border);
            margin-top: 20px;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }

            .tools-grid {
                grid-template-columns: 1fr;
            }

            .btn {
                padding: 14px 20px;
            }

            .settings-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .settings-item select {
                width: 100%;
            }
        }

        .category-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
            color: var(--text-light);
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        }

        .refs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }

        .ref-card {
            background: var(--card-bg);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            color: var(--dark);
            text-decoration: none;
            display: block;
        }

        .ref-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
        }

        .card-icon {
            background: var(--primary);
            color: white;
            padding: 22px 0;
            text-align: center;
        }

        .card-icon i {
            font-size: 32px;
        }

        .card-content {
            padding: 22px;
        }

        .card-content h2 {
            font-size: 1.35rem;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .card-content p {
            font-size: 0.95rem;
            line-height: 1.6;
            color: #555;
            margin-bottom: 16px;
        }

        a.btn:focus-visible {
            text-decoration: none;
        }

        /* =============== SCHICHTPLAN STYLES =============== */

        .shiftplan-header {
            text-align: center;
            padding: 2rem 0;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 15px;
            margin-bottom: 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .shiftplan-header h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
            color: var(--text-light);
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .shiftplan-subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 1rem;
        }

        .controls {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 2rem;
            flex-wrap: wrap;
            background: rgba(255, 255, 255, 0.1);
            padding: 1rem;
            border-radius: 10px;
        }

        .date-selector {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        input[type="date"] {
            padding: 8px 12px;
            border: none;
            border-radius: 5px;
            background: white;
            color: #333;
            font-weight: bold;
        }

        .btn-shift {
            padding: 8px 16px;
            border: none;
            border-radius: 50px;
            background: var(--secondary);
            color: white;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 600;
            text-align: center;
            text-decoration: none;
            display: inline-block;
        }

        .btn-shift:hover {
            background: transparent;
            color: var(--secondary);
            transform: scale(1.05);
        }

        .current-info {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .info-card {
            background: var(--card-bg);
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            min-width: 250px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            color: var(--text-dark);
            transition: transform 0.3s ease;
        }

        .info-card:hover {
            transform: translateY(-5px);
        }

        .info-card h3 {
            margin-bottom: 1rem;
            color: var(--dark);
            font-size: 1.3rem;
        }

        .team-display {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .team-box {
            padding: 1rem;
            border-radius: 10px;
            min-width: 150px;
            text-align: center;
            font-weight: bold;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
            color: white;
        }

        .team-box:hover {
            transform: scale(1.05);
        }

        .eq1 {
            background-color: var(--eq1-color);
        }

        .eq2 {
            background-color: var(--eq2-color);
        }

        .eq3 {
            background-color: var(--eq3-color);
        }

        .eq4 {
            background-color: var(--eq4-color);
        }

        .shift-period {
            text-align: center;
            padding: 1.5rem;
            margin-top: 2rem;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            font-size: 0.9rem;
            opacity: 0.85;
            color: var(--text-light);
        }

        .shift-period h3 {
            margin-bottom: 1rem;
            color: var(--light);
            text-align: center;
        }

        .shift-container {
            display: flex;
            justify-content: space-around;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .shift-box {
            padding: 1rem;
            border-radius: 10px;
            min-width: 200px;
            text-align: center;
            font-weight: bold;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
        }

        .morning {
            background-color: var(--morning-shift);
            color: #333;
        }

        .afternoon {
            background-color: var(--afternoon-shift);
            color: #333;
        }

        .calendar {
            text-align: center;
            padding: 1.5rem;
            margin-top: 2rem;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            font-size: 0.9rem;
            opacity: 0.85;
            color: var(--text-light);
        }

        .calendar h3 {
            margin-bottom: 1rem;
            color: var(--light);
            text-align: center;
        }

        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
            gap: 10px;
            margin-top: 1rem;
        }

        .calendar-day {
            padding: 0.5rem;
            border-radius: 5px;
            text-align: center;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(0, 0, 0, 0.2);
            color: var(--text-dark);
            /* ✅ Use dark text in light mode, light in dark mode */
        }

        .calendar-day.today {
            background: rgba(255, 255, 255, 0.3);
            border: 2px solid var(--secondary);
            /* Use red accent instead of white */
            font-weight: bold;
        }

        .calendar-day.selected {
            background: rgba(255, 255, 255, 0.3);
            border: 2px solid var(--secondary);
        }

        .team-label {
            font-weight: bold;
            font-size: 0.9rem;
            margin-top: 0.3rem;
            color: var(--text-dark);
            /* was --text-light */
        }

        footer.shiftplan-footer {
            text-align: center;
            padding: 1.5rem;
            margin-top: 2rem;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            font-size: 0.9rem;
            opacity: 0.85;
            color: var(--text-light);
        }

        /* Animations */
        @keyframes pulse {
            0% {
                transform: scale(1);
            }

            50% {
                transform: scale(1.05);
            }

            100% {
                transform: scale(1);
            }
        }

        .team-box.pulse {
            animation: pulse 1s ease-in-out;
        }

        .loading,
        .error {
            text-align: center;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 10px;
        }

        .loading {
            background: rgba(255, 255, 255, 0.1);
            display: none;
        }

        .error {
            background: rgba(231, 76, 60, 0.2);
            color: var(--text-light);
            display: none;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .controls {
                flex-direction: column;
                align-items: stretch;
            }

            .current-info,
            .team-display,
            .shift-container {
                flex-direction: column;
                align-items: center;
            }

            .info-card,
            .shift-box {
                min-width: auto;
                width: 100%;
                max-width: 300px;
            }
        }