/* ==============================================
   Great Works Reading Tracker - Theme CSS
   Literature-inspired design with classical aesthetics
   ============================================== */

:root {
    /* Color Palette */
    --primary-color: #8b7355;      /* Warm brown */
    --accent-color: #d4af37;       /* Gold */
    --text-color: #2c2416;         /* Dark brown */
    --bg-color: #f4ede4;           /* Cream/parchment */
    --border-color: #c9b59a;       /* Light brown */
    --hover-color: #f0e6d2;        /* Light cream */
    --success-color: #6b8e23;      /* Olive green */
    --error-color: #a0522d;        /* Sienna red */
    --input-bg: #fefdfb;           /* Off-white */

    /* Typography */
    --font-serif: 'Georgia', 'Garamond', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --line-height: 1.7;
}

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

html, body {
    font-family: var(--font-serif);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: var(--line-height);
}

/* Container & Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header & Preface */
.preface {
    margin-bottom: 3rem;
    padding: 2.5rem;
    background: linear-gradient(135deg, #faf6f1 0%, #f4ede4 100%);
    border-left: 5px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(139, 115, 85, 0.1);
    border-radius: 4px;
}

.preface h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: normal;
    letter-spacing: 1px;
}

.preface p {
    font-size: 1.1rem;
    color: #4a4036;
    font-style: italic;
    line-height: 1.8;
}

/* Controls Section */
.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background-color: #fefdfb;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    align-items: center;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.control-group label {
    font-weight: 600;
    color: var(--primary-color);
    font-family: var(--font-sans);
    font-size: 0.95rem;
}

select, input[type="text"] {
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    background-color: var(--input-bg);
    color: var(--text-color);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

select:focus, input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(139, 115, 85, 0.1);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    border: none;
    border-radius: 3px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #f4ede4;
}

.btn-primary:hover {
    background-color: #7a6349;
    box-shadow: 0 4px 8px rgba(139, 115, 85, 0.3);
}

.btn-secondary {
    background-color: var(--accent-color);
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: #c99e27;
    box-shadow: 0 4px 8px rgba(212, 175, 55, 0.3);
}

/* Sync Status Indicator */
.sync-status {
    font-size: 0.9rem;
    font-family: var(--font-sans);
    padding: 0.5rem 1rem;
    border-radius: 3px;
    white-space: nowrap;
    display: inline-block;
    min-width: 140px;
    text-align: center;
}

.sync-status.idle {
    color: #999;
}

.sync-status.syncing {
    background-color: #e3f2fd;
    color: #1976d2;
}

.sync-status.success {
    background-color: #e8f5e9;
    color: var(--success-color);
}

.sync-status.error {
    background-color: #fce4ec;
    color: var(--error-color);
}

/* Table Section */
.table-wrapper {
    overflow-x: auto;
    margin-bottom: 2rem;
    border-radius: 4px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.works-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fefdfb;
    font-size: 0.95rem;
}

.works-table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, #7a6349 100%);
    color: #f4ede4;
    position: sticky;
    top: 0;
}

.works-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-family: var(--font-sans);
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.author-col {
    width: 20%;
}

.title-col {
    width: 30%;
}

.reader-header {
    text-align: center;
    min-width: 120px !important;
    padding: 1rem !important;
    width: 120px;
}

.works-table td {
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.works-table tbody tr {
    transition: background-color 0.2s;
}

.works-table tbody tr:hover {
    background-color: var(--hover-color);
}

.works-table tbody tr:nth-child(even) {
    background-color: #faf9f7;
}

.works-table tbody tr:nth-child(even):hover {
    background-color: #f2ebe2;
}

/* Reader Cells */
.reader-cell {
    text-align: center;
    position: relative;
    width: 120px;
    min-width: 120px;
    padding: 0.9rem 0.5rem !important;
}

.cell-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

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

.language-selector {
    font-size: 0.85rem;
    padding: 0.3rem 0.6rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 2px;
    cursor: pointer;
    color: var(--text-color);
}

.language-selector:hover {
    background-color: var(--hover-color);
}

.language-badge {
    display: inline-block;
    padding: 0.2rem 0.4rem;
    margin: 0.2rem;
    background-color: var(--accent-color);
    color: var(--text-color);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Form Section */
.form-container {
    max-width: 500px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: #fefdfb;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
    font-family: var(--font-sans);
}

.form-group input[type="text"] {
    width: 100%;
    padding: 0.8rem;
    font-size: 1rem;
}

.form-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.form-buttons .btn {
    flex: 1;
}

.message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
    display: none;
}

.message.success {
    display: block;
    background-color: #e8f5e9;
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.message.error {
    display: block;
    background-color: #fce4ec;
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

/* Footer */
.footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: #8a7860;
    font-size: 0.9rem;
    font-style: italic;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .preface h1 {
        font-size: 1.8rem;
    }

    .preface {
        padding: 1.5rem;
        margin-bottom: 2rem;
    }

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

    .control-group {
        flex-direction: column;
        align-items: stretch;
    }

    select, input[type="text"] {
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .works-table {
        font-size: 0.85rem;
    }

    .works-table th,
    .works-table td {
        padding: 0.6rem;
    }

    .author-col {
        width: 15%;
    }

    .title-col {
        width: 25%;
    }

    .reader-cell {
        min-width: 100px;
    }

    .table-wrapper {
        border-radius: 2px;
    }
}

@media (max-width: 480px) {
    .preface h1 {
        font-size: 1.5rem;
    }

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

    .works-table {
        font-size: 0.8rem;
    }

    .works-table th,
    .works-table td {
        padding: 0.4rem;
    }

    .reader-cell {
        min-width: 80px;
    }
}