:root {
    --bg: #ffffff;
    --text: #1e1e1e;
    --accent: #4caf50;
    --danger: #e53935;
    --note-bg: #f5f5f5;
    --border: #ddd;
    --shadow: rgba(0, 0, 0, 0.1);
    --placeholder: #999;
    --transition: 0.3s ease;
}

.dark {
    --bg: #121212;
    --text: #f1f1f1;
    --accent: #81c784;
    --danger: #ef5350;
    --note-bg: #1e1e1e;
    --border: #333;
    --shadow: rgba(0, 0, 0, 0.3);
    --placeholder: #666;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', system-ui, sans-serif;
    transition: background-color var(--transition), color var(--transition);
    line-height: 1.6;
}

header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background var(--transition), border-color var(--transition);
}

    header h1 {
        font-size: 1.5rem;
        font-weight: 600;
        color: var(--text);
    }

button {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), transform 0.1s ease;
}

    button:hover {
        background: #388e3c;
    }

    button:active {
        transform: scale(0.96);
    }

    button:focus {
        outline: 2px solid var(--accent);
        outline-offset: 3px;
    }

    button.danger {
        background-color: var(--danger);
    }

#tools-panel {
    position: fixed;
    top: 5rem;
    right: 1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    box-shadow: 0 4px 12px var(--shadow);
    display: none;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 9999;
}

main {
    padding: 2rem;
}

.note {
    position: absolute;
    width: 600px;
    height: 400px;
    background: var(--note-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 6px 20px var(--shadow);
    padding: 1rem;
    resize: both;
    overflow: auto;
    cursor: move;
    z-index: 100;
    transition: box-shadow var(--transition);
}

.note-content {
    width: 100%;
    height: calc(100% - 80px);
    padding: 0.5rem;
    background: transparent;
    color: var(--text);
    border: none;
    outline: none;
    font-family: inherit;
    font-size: 1rem;
}

    .note-content.empty::before {
        content: "Notatka...";
        color: var(--placeholder);
        position: absolute;
        pointer-events: none;
    }

.note-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
    position: relative;
}

.download-options {
    position: absolute;
    top: -2.5rem;
    right: 0;
    display: flex;
    gap: 0.5rem;
    background: var(--bg);
    padding: 0.3rem 0.5rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 10px var(--shadow);
    z-index: 1000;
}

    .download-options button {
        background: none;
        border: none;
        color: var(--text);
        font-size: 0.9rem;
        cursor: pointer;
        padding: 4px 8px;
        border-radius: 4px;
        transition: background var(--transition);
    }

        .download-options button:hover {
            background-color: rgba(0, 0, 0, 0.05);
        }

#minimized-list button {
    background-color: #888;
    font-size: 0.8rem;
    padding: 0.4rem 0.7rem;
    border-radius: 5px;
    color: #fff;
}

#notes-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

#notes-overlay-content {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem;
    border-radius: 12px;
    width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
    position: relative;
    transition: background var(--transition);
}

.dark #notes-overlay-content {
    background: rgba(30, 30, 30, 0.95);
}

#close-notes-overlay {
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 1.5rem;
    border: none;
    background: transparent;
    color: var(--text);
    cursor: pointer;
}

#notes-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

@media (max-width: 640px) {
    .note {
        width: 90vw;
        height: 60vh;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
    }
}