* { margin: 0; padding: 0; box-sizing: border-box; }
        
        /* Light Theme (Default) */
        :root {
            --bg-primary: #f8f9fd;
            --bg-secondary: #ffffff;
            --bg-card: #fef9fb;
            --text-primary: #4a4a4a;
            --text-secondary: #7a7a7a;
            --accent-primary: #b8a8d9;
            --accent-secondary: #a8d9c8;
            --accent-tertiary: #d9b8c8;
            --border: #e0d5f0;
            --shadow: rgba(184, 168, 217, 0.2);
            --header-bg: #8b5fbf;
            --header-text: #ffffff;
            --timer-bg: #f0e8ff;
            --timer-text: #6b4d8a;
        }

        /* Dark Theme */
        body.dark-mode {
            --bg-primary: #2a2438;
            --bg-secondary: #3d3450;
            --bg-card: #4a3d58;
            --text-primary: #f0e8f5;
            --text-secondary: #d0c5dc;
            --accent-primary: #b8a8d9;
            --accent-secondary: #a8d9c8;
            --accent-tertiary: #d9b8c8;
            --border: #5a4d68;
            --shadow: rgba(139, 95, 191, 0.3);
            --header-bg: #6b4d8a;
            --header-text: #ffffff;
            --timer-bg: #5a4d70;
            --timer-text: #d9c8e8;
        }

        body { 
            font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif; 
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            transition: all 0.4s ease;
        }

        header { 
            background: var(--header-bg);
            color: var(--header-text);
            padding: 2.5rem 1rem;
            text-align: center;
            position: relative;
        }

        .theme-toggle {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: rgba(255, 255, 255, 0.2);
            border: none;
            padding: 0.6rem 1rem;
            border-radius: 20px;
            cursor: pointer;
            color: var(--header-text);
            font-size: 0.9rem;
            font-weight: bold;
            transition: all 0.3s;
            backdrop-filter: blur(10px);
        }

        .theme-toggle:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: scale(1.05);
        }

        header h1 { 
            font-size: 2.8rem;
            margin-bottom: 0.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }

        .tagline { 
            font-size: 1.2rem;
            opacity: 0.95;
            margin-bottom: 0.3rem;
        }

        .subtitle { 
            font-size: 1rem;
            opacity: 0.85;
        }

        .back-link { 
            display: inline-block;
            margin-top: 1rem;
            padding: 0.6rem 1.5rem;
            background: var(--bg-secondary);
            color: var(--header-bg);
            text-decoration: none;
            border-radius: 25px;
            font-weight: bold;
            transition: all 0.3s;
            box-shadow: 0 4px 10px var(--shadow);
        }

        .back-link:hover { 
            transform: translateY(-2px);
            box-shadow: 0 6px 15px var(--shadow);
        }

        main { 
            max-width: 900px;
            margin: 2rem auto;
            padding: 0 1.5rem;
            min-height: calc(100vh - 400px);
        }

        .disclaimer { 
            background: var(--bg-card);
            border-left: 5px solid var(--accent-secondary);
            padding: 1.2rem;
            margin-bottom: 2rem;
            border-radius: 10px;
            box-shadow: 0 4px 15px var(--shadow);
        }

        .disclaimer h3 { 
            color: var(--accent-secondary);
            margin-bottom: 0.5rem;
            font-size: 1.1rem;
        }

        .disclaimer p { 
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0.3rem 0;
            font-size: 0.95rem;
        }

        .card { 
            background: var(--bg-secondary);
            border-radius: 20px;
            padding: 2.5rem;
            box-shadow: 0 8px 25px var(--shadow);
            margin-bottom: 2rem;
            border: 2px solid var(--border);
            transition: all 0.4s ease;
        }

        .card h2 { 
            color: var(--accent-primary);
            margin-bottom: 1.5rem;
            font-size: 1.8rem;
            text-align: center;
        }

        .intro-box { 
            background: var(--bg-card);
            padding: 1.8rem;
            border-radius: 15px;
            margin-bottom: 2rem;
            border-left: 4px solid var(--accent-primary);
            line-height: 1.8;
        }

        .intro-box h3 {
            color: var(--accent-primary);
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }

        .intro-box p { 
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .intro-box p:last-child { 
            margin-bottom: 0;
        }

        .intro-box ul {
            margin-left: 1.5rem;
            margin-top: 0.5rem;
        }

        .intro-box li {
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        label { 
            display: block;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            font-weight: bold;
            color: var(--accent-primary);
            font-size: 1.1rem;
        }

        .label-hint { 
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: normal;
            margin-top: 0.3rem;
            font-style: italic;
            display: block;
        }

        textarea { 
            width: 100%;
            padding: 1rem;
            border: 2px solid var(--border);
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            background: var(--bg-card);
            color: var(--text-primary);
            transition: all 0.3s;
            min-height: 120px;
            resize: vertical;
        }

        textarea:focus { 
            outline: none;
            border-color: var(--accent-primary);
            box-shadow: 0 0 0 4px rgba(184, 168, 217, 0.15);
        }

        .btn { 
            padding: 1rem 2rem;
            border: none;
            border-radius: 15px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 1.1rem;
            display: inline-block;
            text-align: center;
            margin-top: 1.5rem;
            box-shadow: 0 4px 15px var(--shadow);
        }

        .btn-primary { 
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
            color: white;
            width: 100%;
            font-size: 1.2rem;
            padding: 1.2rem;
        }

        .btn-primary:hover:not(:disabled) { 
            transform: translateY(-3px);
            box-shadow: 0 6px 20px var(--shadow);
        }

        .btn-primary:disabled { 
            opacity: 0.5;
            cursor: not-allowed;
        }

        .timer-container {
            background: var(--timer-bg);
            padding: 2rem;
            border-radius: 15px;
            margin: 2rem 0;
            text-align: center;
            border: 2px solid var(--accent-primary);
        }

        .timer-display {
            font-size: 3rem;
            font-weight: bold;
            color: var(--timer-text);
            margin: 1rem 0;
            font-variant-numeric: tabular-nums;
        }

        .timer-label {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 0.5rem;
        }

        .timer-instruction {
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-top: 1rem;
            font-style: italic;
        }

        .progress-bar {
            width: 100%;
            height: 8px;
            background: var(--bg-secondary);
            border-radius: 10px;
            overflow: hidden;
            margin-top: 1rem;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
            transition: width 0.3s ease;
            border-radius: 10px;
        }

        .question-indicator {
            text-align: center;
            margin-bottom: 1.5rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .reflection-screen { 
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, 
                rgba(248, 249, 253, 0.98), 
                rgba(254, 249, 251, 0.98)
            );
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            opacity: 0;
            animation: fadeIn 1s forwards;
            overflow-y: auto;
            padding: 2rem;
        }

        body.dark-mode .reflection-screen {
            background: linear-gradient(135deg,
                rgba(42, 36, 56, 0.98),
                rgba(61, 52, 80, 0.98)
            );
        }

        @keyframes fadeIn {
            to { opacity: 1; }
        }

        .reflection-container { 
            max-width: 800px;
            width: 100%;
            padding: 3rem;
            background: var(--bg-secondary);
            border-radius: 20px;
            box-shadow: 0 10px 40px var(--shadow);
            border: 2px solid var(--border);
        }

        .reflection-item {
            margin-bottom: 2.5rem;
            opacity: 0;
            animation: slideUp 0.8s ease forwards;
        }

        .reflection-item:nth-child(1) { animation-delay: 0.2s; }
        .reflection-item:nth-child(2) { animation-delay: 0.4s; }
        .reflection-item:nth-child(3) { animation-delay: 0.6s; }
        .reflection-item:nth-child(4) { animation-delay: 0.8s; }
        .reflection-item:nth-child(5) { animation-delay: 1s; }

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

        .reflection-question {
            color: var(--accent-primary);
            font-size: 1.1rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
        }

        .reflection-answer {
            color: var(--text-primary);
            font-size: 1rem;
            line-height: 1.8;
            padding-left: 1rem;
            border-left: 3px solid var(--accent-tertiary);
        }

        .breathing-exercise {
            text-align: center;
            padding: 2rem;
            background: var(--bg-card);
            border-radius: 15px;
            margin-top: 2rem;
            border: 2px solid var(--accent-secondary);
            opacity: 0;
            animation: fadeIn 1s ease 1.5s forwards;
        }

        .breathing-exercise h3 {
            color: var(--accent-secondary);
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }

        .breathing-instruction {
            font-size: 1.1rem;
            color: var(--text-primary);
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }

        .core-message {
            font-size: 1.2rem;
            color: var(--accent-primary);
            font-style: italic;
            font-weight: bold;
            margin-top: 1.5rem;
            padding: 1.5rem;
            background: var(--bg-secondary);
            border-radius: 10px;
        }

        .btn-back-reflection {
            background: var(--header-bg);
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 25px;
            text-decoration: none;
            display: inline-block;
            margin-top: 2rem;
            font-weight: bold;
            font-size: 1.1rem;
            box-shadow: 0 4px 15px var(--shadow);
            transition: all 0.3s;
            opacity: 0;
            animation: fadeIn 1s ease 2s forwards;
        }

        .btn-back-reflection:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px var(--shadow);
        }

        .skip-timer {
            margin-top: 1rem;
            padding: 0.5rem 1rem;
            background: transparent;
            border: 2px solid var(--accent-secondary);
            color: var(--text-primary);
            border-radius: 10px;
            cursor: pointer;
            font-size: 0.9rem;
            transition: all 0.3s;
        }

        .skip-timer:hover {
            background: var(--accent-secondary);
            color: white;
        }

        .hidden { 
            display: none !important;
        }

        footer { 
            text-align: center;
            padding: 2rem;
            color: var(--text-secondary);
            background: var(--bg-secondary);
            margin-top: 3rem;
            border-top: 2px solid var(--border);
        }

        /* Responsive */
        @media (max-width: 768px) {
            header h1 { font-size: 2rem; }
            .tagline { font-size: 1rem; }
            .timer-display { font-size: 2.5rem; }
            .reflection-container { padding: 1.5rem; }
        }

        /* Floating elements */
        .floating-element {
            position: absolute;
            opacity: 0.1;
            font-size: 2rem;
            animation: float 6s ease-in-out infinite;
            pointer-events: none;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-30px) rotate(10deg); }
        }