/* =========================================================
   writing-exercises.css – Exercise List Page (Stitch Redesign)
   ========================================================= */

:root {
    --we-primary: #2136e7;
    --we-primary-container: #4255ff;
    --we-primary-fixed: #dfe0ff;
    --we-on-primary-fixed: #000965;
    --we-secondary: #745b00;
    --we-secondary-fixed: #ffe08c;
    --we-on-secondary-fixed: #241a00;
    --we-secondary-container: #fdcc1d;
    --we-on-secondary-container: #6e5700;
    --we-tertiary-fixed: #dee2ef;
    --we-on-tertiary-fixed-variant: #424751;
    --we-surface: #f9f9ff;
    --we-surface-lowest: #ffffff;
    --we-surface-low: #f0f3ff;
    --we-surface-container: #e7eeff;
    --we-surface-variant: #d8e3fb;
    --we-on-surface: #111c2d;
    --we-on-surface-variant: #444656;
    --we-outline: #757688;
    --we-outline-variant: rgba(197, 197, 217, 0.4);
    --we-shadow: 0 2px 12px rgba(66, 85, 255, 0.06);
    --we-success: #10b981;
    --we-error: #ba1a1a;
    --we-warning: #d97706;
}

/* ─── Page Shell ─────────────────────────────────────── */
.writing-exercises-page {
    min-height: calc(100vh - 180px);
    padding: 2rem 0 4rem;
    background-color: var(--we-surface);
    color: var(--we-on-surface);
    font-family: 'Be Vietnam Pro', 'Inter', sans-serif;
}

.writing-exercises-shell {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ─── Breadcrumbs ────────────────────────────────────── */
.writing-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--we-on-surface-variant);
    margin-bottom: 0.5rem;
}

.writing-breadcrumb a {
    color: var(--we-on-surface-variant);
    text-decoration: none;
    transition: color 0.2s;
}

.writing-breadcrumb a:hover {
    color: var(--we-primary);
}

/* ─── Page Header ────────────────────────────────────── */
.writing-exercises-head {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .writing-exercises-head {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-end;
    }
}

.writing-exercises-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: var(--we-on-surface);
    line-height: 1.2;
}

.writing-exercises-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.writing-level-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--we-primary-fixed);
    color: var(--we-on-primary-fixed);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.writing-exercises-count {
    color: var(--we-on-surface-variant);
    font-size: 1rem;
}

/* ─── Flash Messages ─────────────────────────────────── */
.writing-alert {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.25rem;
    border-radius: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid transparent;
}

.writing-alert--success {
    background: #f0fdf4;
    color: #166534;
    border-color: #bbf7d0;
}

.writing-alert--error {
    background: #fef2f2;
    color: #991b1b;
    border-color: #fecaca;
}

/* ─── Filter Bar ─────────────────────────────────────── */
.writing-filter-bar {
    background: var(--we-surface-lowest);
    border: 1px solid var(--we-outline-variant);
    border-radius: 1.25rem;
    padding: 1rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .writing-filter-bar {
        flex-direction: row;
        align-items: center;
    }
}

.writing-filter-search {
    flex-grow: 1;
    position: relative;
}

.writing-filter-search i,
.writing-filter-search .filter-search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--we-outline);
    pointer-events: none;
}

.writing-filter-search input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: var(--we-surface);
    border: 1px solid var(--we-outline-variant);
    border-radius: 0.75rem;
    outline: none;
    font-size: 0.9375rem;
    transition: all 0.2s;
    font-family: inherit;
    color: var(--we-on-surface);
}

.writing-filter-search input:focus {
    border-color: var(--we-primary);
    box-shadow: 0 0 0 3px rgba(33, 54, 231, 0.12);
}

.writing-filters-group {
    display: flex;
    gap: 0.5rem;
    margin: 0;
    flex-wrap: wrap;
}

.writing-select {
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    background: var(--we-surface);
    border: 1px solid var(--we-outline-variant);
    border-radius: 0.75rem;
    outline: none;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--we-on-surface-variant);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23444656'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
}

.writing-select:focus {
    border-color: var(--we-primary);
    box-shadow: 0 0 0 3px rgba(33, 54, 231, 0.12);
}

/* ─── Section Title ──────────────────────────────────── */
.writing-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--we-on-surface);
}

/* ─── Exercise Cards Grid ────────────────────────────── */
.writing-exercise-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .writing-exercise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1280px) {
    .writing-exercise-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ─── Exercise Card ──────────────────────────────────── */
.writing-exercise-card {
    background: var(--we-surface-lowest);
    border: 1px solid var(--we-outline-variant);
    border-radius: 1.25rem;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: all 0.2s ease;
    box-shadow: var(--we-shadow);
}

.writing-exercise-card:hover {
    box-shadow: 0 4px 16px rgba(66, 85, 255, 0.1);
    transform: translateY(-2px);
}

.writing-exercise-card--active {
    border-left: 4px solid var(--we-secondary-container);
}

.writing-exercise-card--private {
    border-left: 4px solid var(--we-success);
}

.writing-exercise-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

/* Level chips */
.writing-card-chip {
    padding: 0.125rem 0.5rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.writing-card-chip--basic {
    background: var(--we-surface-variant);
    color: var(--we-on-surface-variant);
}

.writing-card-chip--intermediate {
    background: var(--we-secondary-fixed);
    color: var(--we-on-secondary-fixed);
}

.writing-card-chip--advanced {
    background: var(--we-tertiary-fixed);
    color: var(--we-on-tertiary-fixed-variant);
}

.writing-card-chip--default {
    background: var(--we-surface-variant);
    color: var(--we-on-surface-variant);
}

.writing-card-duration {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--we-on-surface-variant);
    font-size: 0.75rem;
    font-weight: 500;
}

.writing-exercise-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0 0 0.25rem;
    color: var(--we-on-surface);
    transition: color 0.2s;
    line-height: 1.4;
}

.writing-exercise-card:hover .writing-exercise-title {
    color: var(--we-primary);
}

.writing-exercise-preview {
    font-size: 0.9375rem;
    color: var(--we-on-surface-variant);
    margin: 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.writing-exercise-bottom {
    margin-top: auto;
    padding-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

/* ─── Status ─────────────────────────────────────────── */
.writing-status-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.writing-status-text {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--we-on-surface-variant);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.writing-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.writing-status-text--active {
    color: var(--we-secondary);
}

.writing-status-text--completed {
    color: var(--we-success);
}

.writing-attempt-badge {
    font-size: 0.75rem;
    color: var(--we-on-surface-variant);
}

/* AI Score badge */
.writing-ai-score {
    background: rgba(33, 54, 231, 0.1);
    color: var(--we-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ─── Buttons ────────────────────────────────────────── */
.writing-btn {
    padding: 0.5rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 700;
    font-size: 0.875rem;
    text-align: center;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    white-space: nowrap;
    font-family: inherit;
}

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

.writing-btn--primary {
    background: var(--we-primary-container);
    color: var(--we-surface-lowest);
}

.writing-btn--primary:hover {
    background: var(--we-primary);
    color: var(--we-surface-lowest);
}

.writing-btn--outline {
    background: var(--we-surface-low);
    color: var(--we-primary);
    border: 1px solid rgba(33, 54, 231, 0.2);
}

.writing-btn--outline:hover {
    background: var(--we-surface-variant);
    color: var(--we-primary);
}

.writing-btn--muted {
    background: var(--we-surface-low);
    color: var(--we-on-surface-variant);
    border: 1px solid var(--we-outline-variant);
}

.writing-btn--muted:hover {
    background: var(--we-surface-variant);
    color: var(--we-on-surface);
}

.writing-btn--review {
    width: 100%;
    background: var(--we-surface-low);
    color: var(--we-on-surface-variant);
    border: 1px solid var(--we-outline-variant);
}

.writing-btn--review:hover {
    background: var(--we-surface-variant);
    color: var(--we-on-surface);
}

/* ─── Lock Banner ────────────────────────────────────── */
.writing-lock-banner {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem 1.25rem;
    border-radius: 1rem;
    background: #fffbeb;
    border: 1px solid #fde68a;
    margin-bottom: 1.5rem;
}

.writing-lock-banner i {
    color: var(--we-warning);
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.writing-lock-banner strong {
    font-weight: 700;
    display: block;
    margin-bottom: 0.25rem;
}

.writing-lock-banner p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--we-on-surface-variant);
}

/* ─── Create Panel (AI) ──────────────────────────────── */
.writing-create-panel {
    background: var(--we-surface-lowest);
    border: 1px solid var(--we-outline-variant);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--we-shadow);
}

.writing-create-grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 992px) {
    .writing-create-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.writing-create-copy h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: var(--we-on-surface);
}

.writing-create-copy p {
    color: var(--we-on-surface-variant);
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.5;
}

.writing-create-textarea {
    width: 100%;
    border: 1px solid var(--we-outline-variant);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    resize: vertical;
    outline: none;
    font-family: inherit;
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
    color: var(--we-on-surface);
    background: var(--we-surface);
    transition: border-color 0.2s, box-shadow 0.2s;
    line-height: 1.5;
}

.writing-create-textarea:focus {
    border-color: var(--we-primary);
    box-shadow: 0 0 0 3px rgba(33, 54, 231, 0.12);
}

.writing-create-message {
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

/* ─── Empty State ────────────────────────────────────── */
.writing-empty-state {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--we-on-surface-variant);
    background: var(--we-surface-lowest);
    border-radius: 1rem;
    border: 1px solid var(--we-outline-variant);
}

.writing-empty-state i,
.writing-empty-state .empty-icon {
    font-size: 5rem;
    opacity: 0.2;
    margin-bottom: 1rem;
    display: block;
}

.writing-empty-state h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--we-on-surface);
    margin: 0 0 0.5rem;
}

.writing-empty-state p {
    margin: 0 0 2rem;
    max-width: 28rem;
    margin-left: auto;
    margin-right: auto;
}

/* ─── Delete form ────────────────────────────────────── */
.writing-delete-form {
    margin: 0;
}

.writing-btn--icon {
    padding: 0.5rem;
    border-radius: 0.5rem;
    color: var(--we-error);
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.writing-btn--icon:hover {
    background: #fee2e2;
    border-color: #fecaca;
}

/* ─── Pagination ─────────────────────────────────────── */
.writing-pagination-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.writing-pagination-info {
    color: var(--we-on-surface-variant);
    font-size: 0.875rem;
    margin: 0;
}

.writing-pagination-nav {
    display: flex;
    gap: 0.25rem;
}

.writing-page-link {
    padding: 0.375rem 0.75rem;
    border: 1px solid var(--we-outline-variant);
    border-radius: 0.5rem;
    background: var(--we-surface-lowest);
    color: var(--we-on-surface-variant);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
}

.writing-page-link:hover {
    background: var(--we-surface-low);
    color: var(--we-primary);
    border-color: rgba(33, 54, 231, 0.2);
}

.writing-page-link.is-active {
    background: var(--we-primary);
    color: #fff;
    border-color: var(--we-primary);
}

.writing-page-ellipsis {
    padding: 0.375rem 0.5rem;
    color: var(--we-on-surface-variant);
    font-size: 0.875rem;
}