/**
 * login.css - ログイン・登録・アップグレード画面用スタイル
 * Version: 1.1.0
 * Date: 2025-11-30
 *
 * 使用するCSS変数（base.cssから）:
 * - --text-white, --text-white-60, --text-white-70
 * - --color-primary, --color-error
 * - --glass-bg, --glass-border
 */

/* ========================================
   ログインページ レイアウト
======================================== */

.login-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 200px);
    padding: 2rem 1rem;
    gap: 0.75rem;
}

/* ========================================
   ヘッダー（ロゴ・タイトル）
======================================== */

.login-header {
    text-align: center;
    margin-bottom: 0.5rem;
}

.login-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.login-logo-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.3);
}

.login-logo-img {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.3);
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    font-size: 0.875rem;
    color: var(--text-white-60);
}

/* ========================================
   フォームカード
======================================== */

.login-form-card {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* ========================================
   フォーム要素
======================================== */

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-white-60);
}

.form-input {
    width: 100%;
    box-sizing: border-box;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.form-input:invalid:not(:placeholder-shown) {
    border-color: var(--color-error);
}

/* パスワード入力ラッパー */
.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper .form-input {
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    padding: 0.5rem;
    background: transparent;
    border: none;
    color: var(--text-white-60);
    cursor: pointer;
    transition: color 0.2s;
}

.password-toggle:hover {
    color: var(--text-white);
}

/* フォームヒント */
.form-hint {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 0.25rem;
}

/* エラーメッセージ */
.form-error {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 0.5rem;
    color: #f87171;
    font-size: 0.875rem;
}

/* チェックボックス */
.form-checkbox-group {
    margin-top: 0.5rem;
}

.form-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
}

.form-checkbox-label input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.form-checkbox-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* リンク */
.form-link {
    color: var(--color-primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

.form-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.form-link-center {
    text-align: center;
    margin-top: 0.5rem;
}

.form-link-primary {
    font-weight: 500;
}

/* フルワイドボタン */
.btn-full {
    width: 100%;
    justify-content: center;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
}

/* ========================================
   区切り線
======================================== */

.login-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

/* ========================================
   ソーシャルログインボタン
======================================== */

.social-login-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-social:hover {
    transform: translateY(-1px);
}

.btn-social:active {
    transform: translateY(0);
}

.btn-google {
    background: #ffffff;
    color: #1f1f1f;
    border: none;
}

.btn-google:hover {
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

.btn-apple {
    background: #000000;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-apple:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.social-icon {
    flex-shrink: 0;
}

/* ========================================
   登録リンクセクション
======================================== */

.login-register-link {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
    text-align: center;
}

.login-register-link p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.login-register-link a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* ========================================
   戻るリンク
======================================== */

.login-back {
    width: 100%;
    max-width: 400px;
}

.login-back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-white-60);
    font-size: 0.875rem;
    text-decoration: none;
    transition: color 0.2s;
}

.login-back-link:hover {
    color: var(--text-white);
}

/* ========================================
   ゲストモードセクション
======================================== */

.guest-mode-card {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
    text-align: center;
}

.guest-mode-card-title {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-white-60);
    margin-bottom: 0.75rem;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--text-primary);
}

.guest-mode-note {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 0.5rem;
}

/* ========================================
   パスワードリセット成功メッセージ
======================================== */

.reset-success-message {
    text-align: center;
    padding: 1rem 0;
}

.success-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.success-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.success-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.success-note {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

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

@media (max-width: 480px) {
    .login-page {
        padding: 1.5rem 1rem;
    }

    .login-back {
        align-self: unset;
        padding-left: 0;
    }

    .login-form-card {
        padding: 1.5rem;
    }

    .login-title {
        font-size: 1.25rem;
    }

    .login-logo-icon {
        width: 64px;
        height: 64px;
        border-radius: 16px;
    }

    .login-logo-icon i {
        width: 36px !important;
        height: 36px !important;
    }
}

/* ========================================
   アップグレードページ レイアウト
======================================== */

.upgrade-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem;
    gap: 1.5rem;
    max-width: 500px;
    margin: 0 auto;
}

/* ヘッダー - 縦並び中央寄せ（UIカタログ旧版準拠） */
.upgrade-page .page-header {
    width: 100%;
    padding: 1.5rem 0;
}

.upgrade-page .page-header-content {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
}

.upgrade-page .page-header-icon {
    width: 6rem;
    height: 6rem;
}

.upgrade-page .page-title {
    font-size: 1.75rem;
    margin-top: 0.5rem;
}

.upgrade-page .page-subtitle {
    font-size: 1rem;
}

/* ヘッダー（旧定義 - 未使用） */
.upgrade-header {
    text-align: center;
    margin-bottom: 0.5rem;
}

.upgrade-icon {
    margin-bottom: 1rem;
}

.upgrade-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 0.5rem;
}

.upgrade-subtitle {
    font-size: 0.875rem;
    color: var(--text-white-60);
}

/* ========================================
   現在のステータス
======================================== */

.upgrade-status {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.upgrade-status-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.upgrade-status-info {
    flex: 1;
}

.upgrade-status-label {
    font-size: 0.75rem;
    color: var(--text-white-60);
    margin-bottom: 0.25rem;
}

.upgrade-status-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-white);
}

/* ========================================
   プラン比較セクション
======================================== */

.upgrade-plans-section {
    width: 100%;
}

.upgrade-plans-section .heading-md {
    margin-bottom: 1rem;
}

/* プランカード（グラスカード重複を避けるため独自実装） */
.upgrade-plan-card {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.upgrade-plan-card.upgrade-plan-premium {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(99, 102, 241, 0.15));
    border-color: rgba(139, 92, 246, 0.3);
}

/* おすすめバッジ */
.upgrade-plan-badge {
    position: absolute;
    top: -10px;
    right: 16px;
    background: linear-gradient(135deg, #a855f7, #6366f1);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

/* プランヘッダー */
.upgrade-plan-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.upgrade-plan-description {
    font-size: 0.875rem;
    color: var(--text-white-70, rgba(255, 255, 255, 0.7));
    margin-bottom: 1rem;
}

.upgrade-plan-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.upgrade-plan-title h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 0.25rem;
}

.upgrade-plan-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-white);
}

.upgrade-plan-period {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--text-white-60);
}

/* 機能リスト */
.upgrade-plan-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.upgrade-plan-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

.upgrade-plan-features .feature-included {
    color: var(--text-white);
}

.upgrade-plan-features .feature-excluded {
    color: var(--text-white-40, rgba(255, 255, 255, 0.4));
}

.upgrade-plan-features .feature-highlight {
    font-weight: 500;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    margin: 0.25rem 0;
}

/* トライアル情報 */
.upgrade-trial-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    color: var(--text-blue-200, #93c5fd);
}

/* ========================================
   アクションセクション
======================================== */

.upgrade-actions {
    width: 100%;
}

.upgrade-action-group {
    text-align: center;
}

.upgrade-action-note {
    font-size: 0.75rem;
    color: var(--text-white-60);
    margin-top: 0.75rem;
}

.upgrade-action-note-top {
    margin-top: 0;
    margin-bottom: 1rem;
}

/* プレミアム利用中 */
.upgrade-premium-active,
.upgrade-trial-active {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 12px;
    margin-bottom: 1rem;
}

.upgrade-premium-active p,
.upgrade-trial-active p {
    font-size: 1rem;
    color: var(--text-white);
}

.upgrade-trial-active {
    background: rgba(59, 130, 246, 0.1);
}

.upgrade-trial-remaining {
    font-size: 0.875rem;
    color: var(--text-white-60);
}

/* ローディング */
.upgrade-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
}

.upgrade-loading p {
    font-size: 0.875rem;
    color: var(--text-white-60);
}

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

@media (max-width: 480px) {
    .upgrade-page {
        padding: 1.5rem 1rem;
    }

    .upgrade-title {
        font-size: 1.25rem;
    }

    .upgrade-plan-card {
        padding: 1rem;
    }

    .upgrade-plan-header {
        gap: 0.75rem;
    }

    .upgrade-plan-icon {
        width: 36px;
        height: 36px;
    }

    .upgrade-plan-price {
        font-size: 1.125rem;
    }
}