/* ==========================================================================
   ECA Public Stylesheet v1.5.5 (Final Polished Version)
   ========================================================================== */

/* 1. Root & Theming Variables ------------------------------------------------ */
:root {
    --c-default: #4A90E2;
    --c-positivity: #50E3C2;
    --c-sincerity: #F5A623;
    --c-proactiveness: #F8E71C;
    --c-strategy: #BD10E0;
    --c-sociability: #4A90E2;
    --c-emotional: #9013FE;
    --c-core: #D0021B;
    --c-values: #7ED321;
    --c-submit: #e50065;
    --current-theme-color: var(--c-default);
    --c-text-primary: #333;
    --c-text-secondary: #777;
    --c-bg-light: #f0f2f5;
    --c-border: #e0e5ed;
    --font-main: 'Noto Sans KR', sans-serif;
}

.eca-quiz-container.theme-positivity { --current-theme-color: var(--c-positivity); }
.eca-quiz-container.theme-sincerity { --current-theme-color: var(--c-sincerity); }
.eca-quiz-container.theme-proactiveness { --current-theme-color: var(--c-proactiveness); }
.eca-quiz-container.theme-strategy { --current-theme-color: var(--c-strategy); }
.eca-quiz-container.theme-sociability { --current-theme-color: var(--c-sociability); }
.eca-quiz-container.theme-emotional_stability { --current-theme-color: var(--c-emotional); }
.eca-quiz-container.theme-core_competency { --current-theme-color: var(--c-core); }
.eca-quiz-container.theme-values { --current-theme-color: var(--c-values); }


/* 2. Foundational & Full Page Layout ---------------------------------------- */
body.eca-full-page {
    background-color: var(--c-bg-light);
    font-family: var(--font-main);
    color: var(--c-text-primary);
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.eca-full-page-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 100vh;
    width: 100%;
    padding: 60px 20px 20px;
    box-sizing: border-box;
}

.eca-quiz-container {
    width: 100%;
    max-width: 840px;
    min-height: 600px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    padding: 40px 50px;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    margin: 0 auto;
    position: relative;
}

/* 3. Core Components (Header, Footer, Progress Bar) ------------------------- */
.eca-quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--c-border);
    padding-bottom: 20px;
    margin-bottom: 20px;
}
.eca-quiz-main-title {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    color: var(--current-theme-color);
    transition: color 0.4s ease;
}
.eca-timer {
    display: flex;
    align-items: center;
    font-size: 18px;
    font-weight: 500;
    color: var(--c-text-secondary);
}
.eca-timer svg { margin-right: 8px; }

.eca-quiz-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--c-border);
}
.eca-progress-bar {
    width: 100%;
    height: 10px;
    background-color: #e9ecef;
    border-radius: 5px;
    overflow: hidden;
}
.eca-progress-bar-inner {
    height: 100%;
    width: 0%;
    background-color: var(--current-theme-color);
    border-radius: 5px;
    transition: width 0.5s ease, background-color 0.4s ease;
}
.eca-progress-text {
    text-align: center;
    margin: 10px 0;
    color: var(--c-text-secondary);
    font-size: 14px;
}

.eca-navigation-buttons {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 15px;
}

.eca-nav-btn, .eca-btn-prev, .eca-btn-next, .eca-btn-submit {
    border: none;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    width: auto;
    box-sizing: border-box;
    white-space: nowrap;
    min-width: 120px;
}
.eca-btn-prev {
    background-color: #f1f3f5;
    color: var(--c-text-secondary);
}
.eca-btn-prev:hover { background-color: #dee2e6; }
.eca-btn-next, .eca-btn-submit {
    background-color: var(--current-theme-color);
    color: white;
}
.eca-btn-next:hover, .eca-btn-submit:hover { filter: brightness(1.05); }


/* 4. Question & Answer Cards ----------------------------------------------- */
.eca-question-card {
    flex-grow: 1;
    display: none;
    flex-direction: column;
    width: 100%;
    box-sizing: border-box;
    position: relative;
    padding-bottom: 10px;
}

.eca-question-card.active {
    display: flex;
    animation: eca-fade-in 0.4s ease;
}

@keyframes eca-fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.eca-question-header { margin-bottom: 24px; }
.eca-question-category {
    font-size: 14px;
    font-weight: 700;
    color: var(--current-theme-color);
    transition: color 0.4s ease;
}
.eca-question-number { font-size: 20px; margin: 4px 0 0; }
.eca-question-text {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 30px;
    color: var(--c-text-primary);
}
.eca-options-list, .eca-likert-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.eca-option {
    display: block;
    padding: 18px 20px;
    border: 1px solid var(--c-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: white;
}
.eca-option:hover {
    border-color: var(--current-theme-color);
    background-color: #f8f9fa;
}
.eca-option input[type="radio"] { margin-right: 12px; accent-color: var(--current-theme-color); }

.eca-textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--c-border);
    border-radius: 8px;
    font-size: 16px;
    line-height: 1.6;
    box-sizing: border-box;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.eca-textarea:focus {
    outline: none;
    border-color: var(--current-theme-color);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--current-theme-color) 25%, transparent);
}


/* 5. Specific Screens (Start, Info, Interstitial, Thank You) -------------- */
#eca-intro-screen,
#eca-submitting-card,
#eca-complete-card,
.interstitial-card {
    justify-content: center;
    text-align: center;
}

#eca-start-btn,
#eca-info-form,
.eca-card {
    width: 100%;
    margin: auto;
    text-align: center;
}
.eca-card h2 { font-size: 28px; margin-bottom: 10px; color: var(--c-text-primary); }
.eca-card p { font-size: 16px; color: var(--c-text-secondary); margin-bottom: 40px; }

.eca-form-row { max-width: 420px; margin: 0 auto 20px; }
.eca-form-row label { display: block; text-align: left; font-weight: 500; margin-bottom: 8px; }
#eca-code { width: 100%; padding: 15px; font-size: 20px; text-align: center; letter-spacing: 5px; border: 1px solid var(--c-border); border-radius: 8px; box-sizing: border-box; transition: border-color 0.3s ease, box-shadow 0.3s ease; }
#eca-code:focus { outline: none; border-color: var(--current-theme-color); box-shadow: 0 0 0 3px color-mix(in srgb, var(--current-theme-color) 25%, transparent); }

#eca-start-btn {
    display: inline-block;
    width: auto;
    max-width: 360px;
    padding: 12px 28px;
    font-size: 18px;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    background-color: var(--current-theme-color);
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    margin: 0 auto;
}
#eca-start-btn:hover { filter: brightness(1.05); }
#eca-start-btn:disabled { background-color: #ced4da; cursor: not-allowed; }

#eca-info-form h2 { font-size: 28px; margin-bottom: 10px; color: var(--c-text-primary); }
#eca-info-form p { font-size: 16px; color: var(--c-text-secondary); margin-bottom: 40px; }
.eca-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 600px;
    margin: 0 auto 30px;
    text-align: left;
}
.eca-info-grid label { font-weight: 500; margin-bottom: 8px; display: block; }
.eca-info-grid input, .eca-info-grid select {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 1px solid var(--c-border);
    border-radius: 8px;
    box-sizing: border-box;
    margin-top: 5px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.eca-info-grid input:focus, .eca-info-grid select:focus {
    outline: none;
    border-color: var(--current-theme-color);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--current-theme-color) 25%, transparent);
}

.eca-btn-start-quiz,
.eca-btn-interstitial {
    display: inline-block;
    width: auto;
    max-width: 440px;
    padding: 12px 36px;
    font-size: 18px;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    background-color: var(--current-theme-color);
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    margin: 0 auto;
}
/* ======== FIX: interstitial 버튼 상단 여백 추가 ======== */
.eca-btn-interstitial {
    margin-top: 40px;
}
.eca-btn-start-quiz:hover,
.eca-btn-interstitial:hover { filter: brightness(1.05); }

/* ======== FIX: 제출/완료 화면 스타일 추가 ======== */
.eca-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--current-theme-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: eca-spin 1s linear infinite;
    margin: 0 auto 20px;
}
@keyframes eca-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.eca-submission-text {
    font-size: 16px;
    color: var(--c-text-secondary);
}
.eca-btn-final-exit {
    display: inline-block;
    width: auto;
    max-width: 440px;
    padding: 12px 36px;
    font-size: 18px;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    background-color: var(--c-submit); /* 제출하기 버튼 색상 적용 */
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    margin: 40px auto 0;
    text-decoration: none;
}
.eca-btn-final-exit:hover {
    filter: brightness(1.05);
}


/* 6. Utility & Hidden Classes ---------------------------------------------- */
.hidden {
    display: none !important;
}

/* 7. Responsive adjustments -------------------------------------------------*/
@media (max-width: 600px) {
    .eca-quiz-container { padding: 24px; max-width: 100%; border-radius: 8px; }
    .eca-info-grid { grid-template-columns: 1fr; }
    .eca-navigation-buttons { flex-direction: column; align-items: stretch; }
    .eca-nav-btn { width: 100%; min-width: 0; }
}