/* ==========================================================================
   Compose Page Styles
   Auth-gated form for creating new posts
   ========================================================================== */

/* Draft Recovery Notice */
.compose-draft-notice {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 48rem;
    margin: 0 auto var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
}

.compose-draft-notice[hidden] {
    display: none;
}

.compose-draft-discard {
    background: none;
    border: none;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
}

.compose-draft-discard:hover {
    color: var(--color-error-text);
}

/* Save Warning */
.compose-save-warning {
    max-width: 48rem;
    margin: 0 auto var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--color-warning);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    border-left: 2px solid var(--color-warning);
}

.compose-save-warning[hidden] {
    display: none;
}

/* Error Display */
.compose-error {
    max-width: 48rem;
    margin: 0 auto var(--spacing-4);
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--color-error-bg);
    color: var(--color-error-text);
    border: 1px solid var(--color-error-border);
    border-radius: var(--radius-md);
}

.compose-error p {
    margin: 0;
}

/* Form */
.compose-form {
    max-width: 48rem;
    margin: 0 auto;
    padding: var(--spacing-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background-color: var(--color-bg-primary);
}

.compose-field {
    margin-bottom: var(--spacing-5);
}

.compose-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-2);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
}

.compose-required {
    color: var(--color-error);
}

.compose-hint {
    font-weight: 400;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
}

.compose-input,
.compose-textarea {
    width: 100%;
    padding: var(--spacing-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    box-sizing: border-box;
}

.compose-input:focus,
.compose-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.compose-textarea {
    font-family: var(--font-family-mono);
    min-height: 200px;
    resize: vertical;
    line-height: 1.6;
}

/* Actions */
.compose-actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-3);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--color-border-light);
}

.compose-submit {
    padding: var(--spacing-2) var(--spacing-6);
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.compose-submit:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.compose-submit:disabled,
.compose-submit-secondary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.compose-submit-secondary {
    padding: var(--spacing-2) var(--spacing-6);
    background-color: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.compose-submit-secondary:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.compose-cancel {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--font-size-sm);
    text-align: center;
}

.compose-cancel:hover {
    color: var(--color-text-secondary);
}

/* Preview Controls */
.compose-preview-controls {
    display: flex;
    justify-content: flex-end;
    margin-top: var(--spacing-2);
}

.compose-preview-btn {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.compose-preview-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Preview Panel */
.compose-preview-panel {
    display: none;
    margin-top: var(--spacing-3);
    padding: var(--spacing-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-primary);
    min-height: 200px;
}

.preview-visible .compose-preview-panel {
    display: block;
}

.preview-placeholder,
.preview-loading {
    color: var(--color-text-muted);
    font-style: italic;
}

.preview-error {
    color: var(--color-error-text);
}

/* Upload Controls */
.compose-upload-btn {
    min-height: 40px;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.compose-upload-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.upload-status {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    min-height: 1.2em;
}

.upload-status.upload-error {
    color: var(--color-error-text);
}

.upload-status.upload-success {
    color: var(--color-success, var(--color-primary));
}

/* Drag-over highlight on textarea */
.compose-textarea-dragover {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (min-width: 481px) {
    .compose-form {
        padding: var(--spacing-6);
    }

    .compose-actions {
        flex-direction: row;
        align-items: center;
    }

    .compose-submit {
        text-align: left;
    }

    .compose-cancel {
        text-align: left;
    }

    /* On larger screens, both textarea and preview coexist */
    .preview-visible .compose-textarea {
        display: block;
    }
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    .compose-submit {
        transition: none;
    }

    .compose-submit:hover {
        transform: none;
    }
}

/* On small screens (default mobile-first), toggle between textarea and preview */
.preview-visible .compose-textarea {
    display: none;
}