/* ==========================================================================
   WordPress 投稿システム - スタイルシート
   ========================================================================== */

:root {
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-success: #059669;
    --color-danger: #dc2626;
    --color-warning: #d97706;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-border: #e2e8f0;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --font-sans: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

/* ==========================================================================
   ログイン画面
   ========================================================================== */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background: var(--color-surface);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.error-message {
    background: #fef2f2;
    color: var(--color-danger);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.875rem;
    border: 1px solid #fecaca;
}

.input-group {
    margin-bottom: 20px;
}

.input-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-sans);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   メイン画面
   ========================================================================== */

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: var(--color-surface);
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.app-header h1 {
    font-size: 1.25rem;
    font-weight: 700;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.current-user {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding: 6px 12px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.btn-logout {
    padding: 8px 16px;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
    transition: background 0.2s, color 0.2s;
}

.btn-logout:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.app-main {
    flex: 1;
    padding: 32px;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

/* ==========================================================================
   ステップセクション
   ========================================================================== */

.step-section {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.step-number {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.step-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

/* ==========================================================================
   アップロードゾーン
   ========================================================================== */

.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: 48px;
    text-align: center;
    transition: border-color 0.2s, background 0.2s;
    position: relative;
}

.upload-zone.dragover {
    border-color: var(--color-primary);
    background: rgba(37, 99, 235, 0.05);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.upload-icon {
    width: 48px;
    height: 48px;
    color: var(--color-text-muted);
}

.upload-text {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
}

.upload-subtext {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.btn-select {
    display: inline-block;
    padding: 10px 20px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-select:hover {
    background: var(--color-primary-hover);
}

.upload-progress {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.upload-zone.uploading .upload-content {
    display: none;
}

.upload-zone.uploading .upload-progress {
    display: flex;
}

.progress-bar {
    width: 200px;
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    width: 0%;
    transition: width 0.3s;
    animation: progress-pulse 1.5s ease-in-out infinite;
}

@keyframes progress-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.progress-text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   フォーム
   ========================================================================== */

.form-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
}

.form-input,
.form-textarea {
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-sans);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.char-count {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-align: right;
}

/* ==========================================================================
   パーマリンク入力
   ========================================================================== */

.slug-input-wrapper {
    display: flex;
    align-items: center;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.slug-input-wrapper:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.slug-prefix {
    padding: 12px 8px 12px 16px;
    background: var(--color-bg);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    white-space: nowrap;
    border-right: 1px solid var(--color-border);
}

.slug-input {
    flex: 1;
    border: none !important;
    border-radius: 0 !important;
    padding-left: 8px !important;
}

.slug-input:focus {
    box-shadow: none !important;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* ==========================================================================
   サイト選択
   ========================================================================== */

.site-selector,
.status-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.site-option,
.status-option {
    position: relative;
}

.site-option input,
.status-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.site-label,
.status-label {
    display: block;
    padding: 12px 20px;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.site-option input:checked + .site-label,
.status-option input:checked + .status-label {
    background: rgba(37, 99, 235, 0.1);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.site-label:hover,
.status-label:hover {
    border-color: var(--color-primary);
}

/* ==========================================================================
   タグ入力
   ========================================================================== */

.tag-input-container {
    position: relative;
}

.selected-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.selected-tags:empty {
    margin-bottom: 0;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.tag-chip button {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0;
    display: flex;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.tag-chip button:hover {
    opacity: 1;
}

.tag-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-sans);
}

.tag-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.tag-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
    display: none;
}

.tag-suggestions.show {
    display: block;
}

.tag-suggestion {
    padding: 10px 16px;
    cursor: pointer;
    transition: background 0.2s;
}

.tag-suggestion:hover {
    background: var(--color-bg);
}

.tag-suggestion.create-new {
    color: var(--color-primary);
    font-weight: 500;
    border-top: 1px solid var(--color-border);
}

.suggested-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.suggested-tag {
    padding: 6px 12px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.suggested-tag:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.suggested-tag-add-all {
    padding: 6px 14px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.2s;
}

.suggested-tag-add-all:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
}

/* ==========================================================================
   サムネイル選択
   ========================================================================== */

.thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
}

.thumbnail-option {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    border: 3px solid transparent;
    transition: border-color 0.2s, transform 0.2s;
}

.thumbnail-option:hover {
    transform: scale(1.02);
}

.thumbnail-option.selected {
    border-color: var(--color-primary);
}

.thumbnail-option img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumbnail-option .check-icon {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
}

.thumbnail-option.selected .check-icon {
    display: flex;
}

.thumbnail-option .check-icon svg {
    width: 14px;
    height: 14px;
    color: white;
}

/* ==========================================================================
   本文プレビュー
   ========================================================================== */

.content-preview {
    padding: 16px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    max-height: 300px;
    overflow-y: auto;
    font-size: 0.875rem;
    line-height: 1.8;
}

.content-preview img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin: 12px 0;
}

/* ==========================================================================
   ボタン
   ========================================================================== */

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.btn-primary,
.btn-secondary {
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-text-muted);
}

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   成功画面
   ========================================================================== */

.success-message {
    text-align: center;
    padding: 48px 24px;
}

.success-icon {
    width: 80px;
    height: 80px;
    color: var(--color-success);
    margin-bottom: 24px;
}

.success-message h2 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.success-message p {
    color: var(--color-text-muted);
    margin-bottom: 32px;
}

.success-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* ==========================================================================
   レスポンシブ
   ========================================================================== */

@media (max-width: 640px) {
    .app-main {
        padding: 16px;
    }

    .step-section {
        padding: 20px;
    }

    .upload-zone {
        padding: 32px 20px;
    }

    .site-selector {
        flex-direction: column;
    }

    .site-label {
        text-align: center;
    }

    .form-actions {
        flex-direction: column-reverse;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
    }

    .success-actions {
        flex-direction: column;
    }

    .success-actions .btn-primary,
    .success-actions .btn-secondary {
        width: 100%;
    }
}