/**
 * フロントエンド用CSS - SWELL最適化
 * UX最適化版
 * プレフィックス: ssd-
 */

/* コンテナ */
.ssd-container {
    --ssd-main-color: #2E7D32;
    --ssd-accent-color: #1976D2;
    --ssd-button-radius: 8px;
    --ssd-font-size: 18px;
    --ssd-text-color: #333;
    --ssd-bg-color: #fff;
    --ssd-border-color: #e0e0e0;
    --ssd-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);

    max-width: 600px;
    margin: 2em auto;
    padding: 2em;
    background: var(--ssd-bg-color);
    border-radius: 16px;
    box-shadow: var(--ssd-shadow);
    font-family: inherit;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

.ssd-container *,
.ssd-container *::before,
.ssd-container *::after {
    box-sizing: border-box;
}

/* ============================================
   導入画面（好奇心ギャップ）
   ============================================ */
.ssd-intro {
    text-align: center;
    padding: 1em 0;
}

.ssd-intro-icon {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5em;
}

.ssd-intro-icon-circle {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--ssd-main-color), color-mix(in srgb, var(--ssd-main-color) 70%, white));
    border-radius: 50%;
    animation: ssd-pulse-glow 2s ease-in-out infinite;
}

.ssd-intro-icon-question {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
    font-weight: 700;
    color: #fff;
    z-index: 1;
}

@keyframes ssd-pulse-glow {
    0%, 100% {
        box-shadow: 0 0 0 0 color-mix(in srgb, var(--ssd-main-color) 40%, transparent);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 0 15px transparent;
        transform: scale(1.02);
    }
}

.ssd-intro-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--ssd-text-color);
    margin-bottom: 0.8em;
    line-height: 1.5;
}

.ssd-intro-title strong {
    color: var(--ssd-main-color);
    background: linear-gradient(transparent 60%, color-mix(in srgb, var(--ssd-main-color) 20%, transparent) 60%);
}

.ssd-intro-description {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5em;
}

/* 社会的証明 */
.ssd-social-proof {
    display: block;
    background: #f5f5f5;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    color: #666;
    margin: 0 auto 1.5em;
    width: fit-content;
}

.ssd-social-proof-number {
    font-weight: 700;
    color: var(--ssd-main-color);
    font-size: 16px;
}

/* 開始ボタン */
.ssd-start-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 300px;
    padding: 18px 32px;
    font-size: 18px;
    font-weight: 600;
    background: linear-gradient(135deg, var(--ssd-main-color), color-mix(in srgb, var(--ssd-main-color) 85%, white));
    color: #fff;
    border: none;
    border-radius: var(--ssd-button-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    position: relative;
    overflow: hidden;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    -webkit-user-select: none;
}

.ssd-start-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: ssd-shimmer 2s infinite;
}

@keyframes ssd-shimmer {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

.ssd-start-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px color-mix(in srgb, var(--ssd-main-color) 35%, transparent);
}

.ssd-start-btn:active {
    transform: translateY(-1px);
}

.ssd-start-btn-arrow {
    transition: transform 0.3s ease;
}

.ssd-start-btn:hover .ssd-start-btn-arrow {
    transform: translateX(4px);
}

.ssd-intro-note {
    font-size: 13px;
    color: #999;
    margin-top: 1em;
}

/* ============================================
   診断本体
   ============================================ */
.ssd-main {
    animation: ssd-fadeIn 0.4s ease;
}

/* プログレスインジケーター */
.ssd-progress {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 1.5em;
}

.ssd-progress-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--ssd-border-color);
    transition: all 0.3s ease;
}

.ssd-progress-dot.active {
    background: var(--ssd-main-color);
    transform: scale(1.2);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--ssd-main-color) 20%, transparent);
}

.ssd-progress-dot.completed {
    background: var(--ssd-main-color);
    opacity: 0.6;
}

/* 残り質問数 */
.ssd-remaining {
    text-align: center;
    font-size: 14px;
    color: #666;
    margin-bottom: 1.5em;
}

.ssd-remaining #ssd-remaining-count {
    font-weight: 700;
    color: var(--ssd-main-color);
    font-size: 16px;
}

/* 質問エリア */
.ssd-question-area {
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2em;
    transition: all 0.3s ease;
}

.ssd-question-area.ssd-slide-out {
    opacity: 0;
    transform: translateX(-20px);
}

.ssd-question-area.ssd-slide-in {
    animation: ssd-slideIn 0.4s ease forwards;
}

@keyframes ssd-slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.ssd-question-text {
    font-size: var(--ssd-font-size);
    font-weight: 500;
    line-height: 1.7;
    color: var(--ssd-text-color);
    text-align: center;
    padding: 1em;
}

@keyframes ssd-fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ボタンエリア */
.ssd-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.ssd-btn {
    width: 160px;
    min-width: 160px;
    max-width: 160px;
    padding: 16px 0;
    font-size: 17px;
    font-weight: 600;
    border: none;
    border-radius: var(--ssd-button-radius);
    color: #fff;
    cursor: pointer;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
    font-family: inherit;
    letter-spacing: 0.5px;
    text-align: center;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    -webkit-user-select: none;
}

.ssd-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s ease;
}

.ssd-btn:hover::before {
    left: 100%;
}

.ssd-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.ssd-btn:active {
    transform: translateY(-1px);
}

.ssd-btn-yes {
    background: var(--ssd-main-color);
}

.ssd-btn-yes:hover {
    background: color-mix(in srgb, var(--ssd-main-color) 90%, black);
}

.ssd-btn-no {
    background: #9E9E9E;
}

.ssd-btn-no:hover {
    background: #757575;
}

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

.ssd-btn.selected {
    transform: scale(0.98);
}

/* パルスアニメーション */
.ssd-btn.ssd-pulse {
    animation: ssd-btn-pulse 0.3s ease;
}

@keyframes ssd-btn-pulse {
    0% { transform: scale(1); }
    50% { transform: scale(0.95); }
    100% { transform: scale(1); }
}

/* ローディング状態 */
.ssd-btn.loading {
    pointer-events: none;
}

.ssd-btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top-color: #fff;
    border-radius: 50%;
    animation: ssd-spin 0.8s linear infinite;
}

@keyframes ssd-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   診断中アニメーション（労働の錯覚）
   ============================================ */
.ssd-analyzing {
    text-align: center;
    padding: 2em 0;
}

.ssd-analyzing-spinner {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 1.5em;
}

.ssd-analyzing-circle {
    width: 16px;
    height: 16px;
    background: var(--ssd-main-color);
    border-radius: 50%;
    animation: ssd-bounce 1.4s infinite ease-in-out;
}

.ssd-analyzing-circle:nth-child(1) {
    animation-delay: -0.32s;
}

.ssd-analyzing-circle:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes ssd-bounce {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

.ssd-analyzing-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--ssd-text-color);
    margin-bottom: 1.5em;
}

.ssd-analyzing-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 200px;
    margin: 0 auto;
}

.ssd-step-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #999;
    transition: all 0.3s ease;
}

.ssd-step-item::before {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid #ddd;
    border-radius: 50%;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.ssd-step-item.active {
    color: var(--ssd-main-color);
    font-weight: 500;
}

.ssd-step-item.active::before {
    border-color: var(--ssd-main-color);
    background: var(--ssd-main-color);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--ssd-main-color) 20%, transparent);
}

.ssd-step-item.active::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
    margin-left: 6px;
}

/* ============================================
   結果エリア（ピーク・エンド）
   ============================================ */
.ssd-result-area {
    text-align: center;
}

/* 結果バッジ */
.ssd-result-badge {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 1em;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.4s ease;
}

.ssd-result-badge.animate {
    opacity: 1;
    transform: translateY(0);
}

.ssd-result-badge.positive {
    background: linear-gradient(135deg, color-mix(in srgb, var(--ssd-main-color) 15%, transparent), color-mix(in srgb, var(--ssd-main-color) 15%, white));
    color: var(--ssd-main-color);
    border: 1px solid color-mix(in srgb, var(--ssd-main-color) 30%, transparent);
}

.ssd-result-badge.neutral {
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.15), rgba(100, 181, 246, 0.15));
    color: var(--ssd-accent-color);
    border: 1px solid rgba(25, 118, 210, 0.3);
}

.ssd-result-badge.negative {
    background: linear-gradient(135deg, rgba(117, 117, 117, 0.15), rgba(158, 158, 158, 0.15));
    color: #616161;
    border: 1px solid rgba(117, 117, 117, 0.3);
}

/* 結果アイコン */
.ssd-result-icon {
    font-size: 64px;
    margin-bottom: 1em;
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.ssd-result-icon.animate {
    opacity: 1;
    transform: scale(1);
}

.ssd-result-icon.positive::before {
    content: '';
    display: inline-block;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--ssd-main-color), color-mix(in srgb, var(--ssd-main-color) 70%, white));
    border-radius: 50%;
    position: relative;
    animation: ssd-success-pulse 2s ease-in-out infinite;
}

@keyframes ssd-success-pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 color-mix(in srgb, var(--ssd-main-color) 40%, transparent);
    }
    50% {
        box-shadow: 0 0 0 15px transparent;
    }
}

.ssd-result-icon.positive::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -60%) rotate(45deg);
    width: 20px;
    height: 35px;
    border-right: 4px solid #fff;
    border-bottom: 4px solid #fff;
}

.ssd-result-icon.neutral::before {
    content: '';
    display: inline-block;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--ssd-accent-color), #64B5F6);
    border-radius: 50%;
}

.ssd-result-icon.negative::before {
    content: '';
    display: inline-block;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #757575, #9E9E9E);
    border-radius: 50%;
}

/* 結果テキスト */
.ssd-result-text {
    font-size: var(--ssd-font-size);
    line-height: 1.8;
    color: var(--ssd-text-color);
    margin-bottom: 1.5em;
    padding: 0 1em;
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.5s ease;
}

.ssd-result-text.animate {
    opacity: 1;
    transform: translateY(0);
}

/* CTAエリア */
.ssd-result-action {
    margin-top: 1.5em;
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.5s ease;
}

.ssd-result-action.animate {
    opacity: 1;
    transform: translateY(0);
}

.ssd-cta-text {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 1em;
}

/* LINEボタン */
.ssd-line-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 18px 40px;
    font-size: 17px;
    font-weight: 600;
    background: #06C755;
    color: #fff;
    border: none;
    border-radius: var(--ssd-button-radius);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.ssd-line-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: ssd-shimmer 2s infinite;
}

.ssd-line-btn:hover {
    background: #05a847;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(6, 199, 85, 0.35);
    color: #fff;
    text-decoration: none;
}

.ssd-line-btn:visited {
    color: #fff;
}

.ssd-line-btn svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* LINEアイコン */
.ssd-line-icon {
    display: inline-block;
    width: 24px;
    height: 24px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M19.365 9.863c.349 0 .63.285.63.631 0 .345-.281.63-.63.63H17.61v1.125h1.755c.349 0 .63.283.63.63 0 .344-.281.629-.63.629h-2.386c-.345 0-.627-.285-.627-.629V8.108c0-.345.282-.63.627-.63h2.386c.349 0 .63.285.63.63 0 .349-.281.63-.63.63H17.61v1.125h1.755zm-3.855 3.016c0 .27-.174.51-.432.596-.064.021-.133.031-.199.031-.211 0-.391-.09-.51-.25l-2.443-3.317v2.94c0 .344-.279.629-.631.629-.346 0-.626-.285-.626-.629V8.108c0-.27.173-.51.43-.595.06-.023.136-.033.194-.033.195 0 .375.104.495.254l2.462 3.33V8.108c0-.345.282-.63.63-.63.345 0 .63.285.63.63v4.771zm-5.741 0c0 .344-.282.629-.631.629-.345 0-.627-.285-.627-.629V8.108c0-.345.282-.63.627-.63.349 0 .631.285.631.63v4.771zm-2.466.629H4.917c-.345 0-.63-.285-.63-.629V8.108c0-.345.285-.63.63-.63.348 0 .63.285.63.63v4.141h1.756c.348 0 .629.283.629.63 0 .344-.281.629-.629.629M24 10.314C24 4.943 18.615.572 12 .572S0 4.943 0 10.314c0 4.811 4.27 8.842 10.035 9.608.391.082.923.258 1.058.59.12.301.079.766.038 1.08l-.164 1.02c-.045.301-.24 1.186 1.049.645 1.291-.539 6.916-4.078 9.436-6.975C23.176 14.393 24 12.458 24 10.314'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

.ssd-line-btn-text {
    line-height: 1.4;
}

.ssd-line-note {
    font-size: 12px;
    color: #999;
    margin-top: 0.8em;
}

/* コピー完了通知 */
.ssd-copy-notice {
    margin-top: 1em;
    padding: 10px 16px;
    background: linear-gradient(135deg, color-mix(in srgb, var(--ssd-main-color) 10%, white), color-mix(in srgb, var(--ssd-main-color) 20%, white));
    color: var(--ssd-main-color);
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    border: 1px solid color-mix(in srgb, var(--ssd-main-color) 40%, white);
}

/* 再診断ボタン */
.ssd-retry-btn {
    display: inline-block;
    margin-top: 1.5em;
    padding: 12px 24px;
    font-size: 14px;
    color: #666;
    background: transparent;
    border: 1px solid var(--ssd-border-color);
    border-radius: var(--ssd-button-radius);
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: inherit;
    opacity: 0;
    transform: translateY(10px);
}

.ssd-retry-btn.animate {
    opacity: 1;
    transform: translateY(0);
}

.ssd-retry-btn:hover {
    background: #f5f5f5;
    color: #333;
}

/* フッターノート（注釈） */
.ssd-footer-note {
    font-size: 12px;
    color: #999;
    line-height: 1.6;
    margin-top: 2em;
    padding-top: 1.5em;
    border-top: 1px solid var(--ssd-border-color);
    text-align: center;
}

/* ============================================
   紙吹雪エフェクト
   ============================================ */
.ssd-confetti {
    position: absolute;
    top: -10px;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    animation: ssd-confetti-fall linear forwards;
    pointer-events: none;
    z-index: 10;
}

@keyframes ssd-confetti-fall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(400px) rotate(720deg);
        opacity: 0;
    }
}

/* ============================================
   レスポンシブ対応
   ============================================ */
@media screen and (max-width: 600px) {
    .ssd-container {
        margin: 1em;
        padding: 1.5em;
        border-radius: 12px;
    }

    .ssd-intro-icon {
        width: 80px;
        height: 80px;
    }

    .ssd-intro-icon-question {
        font-size: 40px;
    }

    .ssd-intro-title {
        font-size: 20px;
    }

    .ssd-intro-description {
        font-size: 14px;
    }

    .ssd-start-btn {
        max-width: none;
        width: 100%;
        padding: 16px 24px;
        font-size: 16px;
    }

    .ssd-question-text {
        font-size: calc(var(--ssd-font-size) - 2px);
        padding: 0.5em;
    }

    .ssd-buttons {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }

    .ssd-btn {
        width: 200px;
        min-width: 200px;
        max-width: 200px;
        padding: 14px 0;
    }

    .ssd-progress-dot {
        width: 12px;
        height: 12px;
    }

    .ssd-line-btn {
        width: 100%;
        padding: 16px 24px;
    }

    .ssd-result-icon.positive::before,
    .ssd-result-icon.neutral::before,
    .ssd-result-icon.negative::before {
        width: 70px;
        height: 70px;
    }
}

/* ============================================
   ダークモード対応（無効化 - 常にライトモード）
   ============================================ */
/*
@media (prefers-color-scheme: dark) {
    ダークモードは無効化し、常に白背景を使用
}
*/

/* ============================================
   アニメーション無効設定に対応
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .ssd-container *,
    .ssd-container *::before,
    .ssd-container *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .ssd-start-btn::before,
    .ssd-line-btn::before {
        animation: none;
    }

    .ssd-confetti {
        display: none;
    }
}

/* ============================================
   フォーカススタイル（アクセシビリティ）
   ============================================ */
.ssd-btn:focus-visible,
.ssd-start-btn:focus-visible,
.ssd-line-btn:focus-visible,
.ssd-retry-btn:focus-visible {
    outline: 3px solid var(--ssd-main-color);
    outline-offset: 2px;
}

/* スクリーンリーダー用の非表示テキスト */
.ssd-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}