/* Forms Sections Styling */
.rsvp-section, .guest-upload-section {
    padding: 80px 20px;
    background-color: var(--color-surface);
}

.rsvp-container, .upload-container {
    max-width: 650px;
    margin: 0 auto;
    background: #fff;
    padding: 60px 50px;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.shadow-premium {
    box-shadow: 0 10px 40px rgba(0,0,0,0.03);
    border: 1px solid rgba(0,0,0,0.02);
}

.status-banner {
    display: none;
    background: #f8f8f8;
    color: #888;
    padding: clamp(28px, 6vw, 50px) clamp(20px, 5vw, 40px);
    text-align: center;
    font-family: 'Gowun Dodum', sans-serif;
    border-radius: 8px;
    font-size: clamp(0.9rem, 3vw, 1.1rem);
    line-height: 1.9;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.status-banner.is-active {
    display: block;
}

.form-content {
    display: block;
}

.form-content.is-hidden {
    display: none;
}

.input-group {
    margin-bottom: 25px;
    text-align: left;
}

.input-group label {
    display: block;
    font-family: 'Gowun Dodum', sans-serif;
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 10px;
    font-weight: 600;
}

.input-group input[type="text"],
.input-group input[type="tel"],
.input-group input[type="number"] {
    width: 100%;
    padding: 15px;
    border: 1px solid #eee;
    border-radius: 8px;
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.input-group input::placeholder {
    color: #ccc;
}

.input-group input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.radio-group {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.radio-item {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 12px;
    border: 1px solid #eee;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 0.95rem;
}

.radio-item input {
    display: none;
}

.radio-item:has(input:checked) {
    background-color: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.submit-btn {
    width: 100%;
    padding: 18px;
    background-color: var(--color-accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-family: 'Gowun Dodum', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, filter 0.2s;
}

.submit-btn:hover {
    filter: brightness(1.05);
}

.submit-btn:active {
    transform: scale(0.98);
}

/* Photo Upload Specific */
.upload-guide {
    font-family: 'Gowun Dodum', sans-serif;
    font-size: clamp(0.82rem, 2.4vw, 0.95rem);
    color: #888;
    margin-bottom: 25px;
    line-height: 1.75;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.upload-guide small {
    display: block;
    margin-top: 8px;
    font-size: clamp(0.75rem, 2vw, 0.82rem);
    color: #bbb;
}

.file-drop-area {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 28px 20px;
    background: #f7f7f7;
    border-radius: 12px;
    transition: 0.2s;
    margin-bottom: 20px;
    cursor: pointer;
    box-sizing: border-box;
}

.file-drop-area.is-active {
    background: rgba(188, 143, 143, 0.07);
}

.file-drop-area svg {
    pointer-events: none;
    flex-shrink: 0;
}

.file-msg {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 0.88rem;
    color: #999;
    pointer-events: none;
    text-align: center;
}

.file-btn {
    display: inline-block;
    background: transparent;
    color: var(--color-accent);
    font-family: 'Gowun Dodum', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    padding: 10px 30px;
    border-radius: 8px;
    border: 2px dashed var(--color-accent);
    pointer-events: none;
    margin-top: 4px;
}

.file-input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    opacity: 0;
}

.file-preview-list {
    margin-bottom: 20px;
}

/* Thumbnail Grid */
.file-thumb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
    gap: 8px;
    margin-bottom: 10px;
}

.file-thumb-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
    background: #f0f0f0;
}

.file-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.file-thumb-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
}

.file-thumb-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    border: none;
    font-size: 0.65rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
}

.file-thumb-add {
    aspect-ratio: 1;
    border-radius: 8px;
    border: 2px dashed #ccc;
    background: #f7f7f7;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: #ccc;
    transition: border-color 0.2s, color 0.2s;
}

.file-thumb-add:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.file-thumb-counter {
    text-align: right;
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 0.8rem;
    color: #aaa;
    margin-bottom: 16px;
}

/* Progress Bar */
.progress-container {
    margin-top: 20px;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: #f0f0f0;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: var(--color-accent);
    width: 0%;
    transition: width 0.3s;
}

#upload-progress-text {
    font-size: 0.85rem;
    color: #999;
    font-family: 'Gowun Dodum', sans-serif;
}

.hidden {
    display: none;
}

/* ── Tablet / Large Phones (max-width: 768px) ── */
@media (max-width: 768px) {
    .rsvp-container, .upload-container {
        max-width: 550px;
        padding: 40px 30px;
    }
    .status-banner {
        padding: 35px 25px;
        font-size: 1.1rem;
    }
}

/* ── iPhone / Small Phones (max-width: 420px) ── */
@media (max-width: 420px) {
    .rsvp-container, .upload-container {
        padding: 24px 12px;
    }

    .status-banner {
        padding: 20px 12px;
        font-size: 0.95rem;
        line-height: 1.8;
    }

    .pc-br {
        display: none;
    }

    .radio-group {
        gap: 8px;
    }

    .radio-item {
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 10px 6px;
        font-size: 0.85rem;
    }

    .input-group input[type="text"],
    .input-group input[type="tel"],
    .input-group input[type="number"] {
        padding: 12px;
        font-size: 0.9rem;
    }

    .submit-btn {
        padding: 14px;
        font-size: 1rem;
    }

    .file-drop-area {
        padding: 16px 12px;
        gap: 6px;
        margin-bottom: 12px;
    }

    .file-drop-area svg {
        width: 28px;
        height: 28px;
    }

    .file-btn {
        padding: 7px 20px;
        font-size: 0.9rem;
    }

    .submit-btn {
        padding: 12px !important;
    }
}

/* ── RSVP 바텀시트 팝업 ── */
.rsvp-popup-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(4px);
    z-index: 1100;
    opacity: 0;
    pointer-events: none;
    touch-action: none;
    transition: opacity 0.35s ease;
}

.rsvp-popup-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
}

.rsvp-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1101;
    background: var(--color-surface, #fff);
    border-radius: 20px 20px 0 0;
    padding: 12px 28px 40px;
    text-align: center;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.32, 0.72, 0, 1);
    max-width: 600px;
    margin: 0 auto;
    overscroll-behavior: contain;
}

.rsvp-popup.is-open {
    transform: translateY(0);
}

.rsvp-popup-handle {
    width: 40px;
    height: 4px;
    border-radius: 2px;
    background: var(--color-border);
    margin: 0 auto 24px;
}

.rsvp-popup-sub {
    font-family: 'Gowun Dodum', sans-serif;
    font-size: 0.85rem;
    color: var(--color-accent);
    letter-spacing: 3px;
    margin: 0 0 8px;
}

.rsvp-popup-title {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 12px;
}

.rsvp-popup-desc {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 0.9rem;
    color: #888;
    line-height: 1.75;
    margin: 0 0 28px;
}

.rsvp-popup-cta {
    display: block;
    width: 100%;
    padding: 16px;
    background: var(--color-accent);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 12px;
    transition: filter 0.2s;
}

.rsvp-popup-cta:hover {
    filter: brightness(1.05);
}

.rsvp-popup-dismiss {
    display: block;
    width: 100%;
    padding: 12px;
    background: none;
    border: none;
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 0.85rem;
    color: #bbb;
    cursor: pointer;
}