/* Pretendard 폰트 적용 */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');

/* --- Design System --- */
:root {
    --accent-green: #34d399;
    --accent-purple: #8b5cf6;
    --focus-color: #60a5fa;
    --error-color: #f87171;
    --text-color: #e5e7eb;
    --text-light: #d1d5db;
    --glass-bg: rgba(17, 24, 39, 0.5);
    --glass-border: rgba(255, 255, 255, 0.1);
    --input-bg: rgba(0, 0, 0, 0.2);
    --select-option-bg: #1f2937;
    --font-family: 'Pretendard', sans-serif;
    --card-radius: 16px;
}

/* --- Base & Reset --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-family) !important;
}

html {
    scroll-behavior: smooth;
}

body {
    width: 100%;
    /* ✅ 최소 너비 350px로 수정 */
    min-width: 350px;
    min-height: 100vh;
    background-color: #0c0a18;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    font-size: 15px;
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Loading Spinner --- */
#solbi-loading {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.solbi-loading-group {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.solbi-loading-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 25px;
    background: rgba(30, 30, 30, 0.8);
    border-radius: var(--card-radius);
}

.solbi-loading-box > span {
    margin-top: 15px;
    font-size: 1rem;
    color: var(--text-light);
}

.display-hidden {
    display: none !important;
}

/* --- 와이드 모니터 레이아웃 --- */
.page-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 100vh;
    padding: 5vh 2vw;
}

.page-container {
    display: flex;
    width: 100%;
    max-width: 1400px;
    gap: 4vw;
}

.info-panel {
    display: flex;
    flex: 1 1 450px;
    justify-content: center;
    align-items: flex-start;
    padding-top: 5vh;
}

.form-panel {
    display: flex;
    flex: 1 1 600px;
    justify-content: center;
    align-items: center;
}

/* --- 왼쪽 안내 문구 --- */
.info-content {
    max-width: 450px;
    color: var(--text-color);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.info-content h3 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 12px;
    border-left: 4px solid var(--accent-green);
    padding-left: 15px;
    word-break: keep-all; /* 단어 단위 줄바꿈 */
}

.info-content p {
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 12px;
    color: var(--text-light);
    padding-left: 19px;
}

.info-content p.contact {
    margin-bottom: 35px;
}

/* --- Glassmorphism 폼 카드 --- */
.form-card {
    width: 100%;
    background: var(--glass-bg);
    border-radius: var(--card-radius);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    overflow: hidden;
    position: relative;
    padding: 1px;
}

.form-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--card-radius);
    padding: 2px;
    background: linear-gradient(135deg, var(--glass-border), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

.form-header,
.form-body,
.form-footer {
    position: relative;
    z-index: 1;
}

.form-header {
    text-align: center;
    padding: 40px;
}

.form-header h1 {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
}

.form-header p {
    font-size: 1.1rem;
    color: var(--text-light);
}

.form-body {
    padding: 30px 40px;
}

.form-section {
    margin-bottom: 30px;
}

.section-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 25px;
    color: #fff;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 15px;
}

.section-help-text {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 10px;
    padding-left: 5px;
    opacity: 0.8;
}

/* --- 입력 필드 --- */
.form-group {
    margin-bottom: 25px;
}

.form-group label {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--text-light);
    display: block;
}

input,
select,
textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    color: var(--text-color);
    background-color: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    transition: all 0.2s ease-in-out;
}

input::placeholder,
textarea::placeholder {
    color: #6b7280;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--focus-color);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.3);
    background-color: rgba(0, 0, 0, 0.4);
}

.field-error {
    border-color: var(--error-color) !important;
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.4) !important;
}

select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%239ca3af' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 16px 12px;
}

select option {
    background-color: var(--select-option-bg);
    color: var(--text-color);
}

.input-group {
    display: flex;
}

.input-group input {
    flex: 1 1 auto;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group .address-search {
    flex-shrink: 0;
    width: auto;
    height: auto;
    padding: 14px 16px;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    border-left: none;
    background-color: var(--input-bg);
    color: var(--text-light);
}

.input-group .address-search:hover {
    background-color: rgba(0, 0, 0, 0.4);
    border-color: var(--glass-border);
}

/* --- 약관 동의 --- */
.agreement-box {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    padding: 25px;
}

.agree-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.details-button {
    font-size: 0.9rem;
    color: var(--text-light);
    text-decoration: underline;
    padding: 5px 8px;
    border-radius: 5px;
    transition: all 0.2s ease;
    flex-shrink: 0; /* 버튼이 줄어들지 않도록 설정 */
}

.details-button:hover {
    background-color: var(--input-bg);
    color: #fff;
}

/* --- 체크박스 --- */
.custom-checkbox input[type="checkbox"] {
    display: none;
}

.custom-checkbox label {
    position: relative;
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--text-color);
}

.checkbox-icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 22px;
    height: 22px;
    background-color: transparent;
    border: 2px solid var(--glass-border);
    border-radius: 6px;
    margin-right: 12px;
    transition: all 0.2s ease;
}

.checkbox-icon .fa-check {
    font-size: 14px;
    color: #fff;
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.2s ease-in-out;
}

.custom-checkbox input[type="checkbox"]:checked+label .checkbox-icon {
    background-color: var(--accent-purple);
    border-color: var(--accent-purple);
}

.custom-checkbox input[type="checkbox"]:checked+label .checkbox-icon .fa-check {
    opacity: 1;
    transform: scale(1);
}

.custom-checkbox label strong {
    font-weight: 600;
    font-size: 1.05rem;
}

/* --- 푸터 & 버튼 --- */
.form-footer {
    padding: 40px;
}

.form-footer button {
    width: 100%;
    padding: 16px 20px;
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    background-image: linear-gradient(to right, #4f46e5, #7c3aed);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-footer button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* --- '위로 가기' & 페이지 푸터 --- */
#scrollToTopBtn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.4);
    color: #fff;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    text-decoration: none;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 999;
}

#scrollToTopBtn.show {
    opacity: 1;
    pointer-events: auto;
}

#scrollToTopBtn:hover {
    background-color: var(--focus-color);
    transform: scale(1.1);
}

.page-footer {
    width: 100%;
    text-align: center;
    padding: 40px 20px;
    color: var(--text-light);
    font-size: 0.85rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.page-footer p {
    margin-bottom: 8px;
}

.page-footer a {
    color: var(--text-light);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

.page-footer a:hover {
    color: #fff;
    border-bottom-color: var(--text-light);
}

/* --- 반응형 미디어 쿼리 --- */
@media (max-width: 1024px) {
    .page-wrapper {
        padding: 0;
    }
    .page-container {
        flex-direction: column;
        gap: 0;
    }
    .info-panel,
    .form-panel {
        flex-basis: auto;
        width: 100%;
        padding: 40px 20px;
    }
    .info-panel {
        text-align: center;
        padding-top: 60px;
        padding-bottom: 20px;
    }
    .info-content h3 {
        border-left: none;
        padding-left: 0;
        display: inline-block;
        border-bottom: 3px solid var(--accent-green);
        padding-bottom: 5px;
    }
    .info-content p {
        padding-left: 0;
    }
    .form-card {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .form-body,
    .form-footer {
        padding-left: 20px;
        padding-right: 20px;
    }
    #scrollToTopBtn {
        width: 45px;
        height: 45px;
        font-size: 1rem;
        bottom: 20px;
        right: 20px;
    }
    .page-footer {
        padding-bottom: 80px;
    }
}

/* ✅ --- 초소형 화면 대응 (갤럭시 폴드 등, 480px 이하) --- */
@media (max-width: 480px) {
    html {
        /* rem 단위의 기준이 되는 html 폰트 크기를 줄여 전체적인 스케일 축소 */
        font-size: 14px;
    }
    .form-header,
    .form-body,
    .form-footer {
        /* 좌우 여백을 줄여 내용 표시 영역 확보 */
        padding-left: 20px;
        padding-right: 20px;
    }
    .form-header {
        padding-top: 30px;
        padding-bottom: 30px;
    }
    .form-header h1 {
        font-size: 1.8rem;
    }
    .section-title {
        font-size: 1.2rem;
    }
    .agreement-box {
        padding: 20px;
    }
    .agree-item {
        /* 약관 동의 항목을 세로로 배치하여 줄바꿈 깨짐 방지 */
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    .details-button {
        /* '자세히 보기' 버튼을 우측 하단에 배치 */
        align-self: flex-end;
    }
}