:root {
    --bg-dark: #171923; --card-bg-dark: #1A202C; --border-dark: #2D3748;
    --text-dark: #A0AEC0; --text-bright-dark: #E2E8F0;
    --accent-dark: #63B3ED; --accent-hover-dark: #90CDF4; --danger-dark: #E53E3E;
    --bg-light: #f4f7fa; --card-bg-light: #ffffff; --border-light: #e2e8f0;
    --text-light: #2d3748; --accent-light: #3182ce; --accent-hover-light: #2b6cb0;
    --success-color: #48BB78; --error-color: #F56565; --info-color: #4299E1;
}
*, *::before, *::after { box-sizing: border-box; }
body { font-family: 'Noto Sans JP', sans-serif; margin: 0; transition: background-color 0.3s, color 0.3s; }
body.dark-mode { background-color: var(--bg-dark); color: var(--text-dark); }
body:not(.dark-mode) { background-color: var(--bg-light); color: var(--text-light); }

.site-wrapper {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem;
}

.site-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 0; }
body.dark-mode .site-header { border-bottom: 1px solid var(--border-dark); }
body:not(.dark-mode) .site-header { border-bottom: 1px solid var(--border-light); }
.view-mode-banner { text-align: center; padding: 0.5rem; font-weight: bold; }
body.dark-mode .view-mode-banner { background-color: var(--accent-dark); color: var(--bg-dark); }
body:not(.dark-mode) .view-mode-banner { background-color: var(--accent-light); color: white; }
.main-container { display: flex; padding: 2rem 0; gap: 2rem; }
.left-column, .right-column { width: 25%; display: flex; flex-direction: column; gap: 2rem; }
.center-column { width: 50%; display: flex; flex-direction: column; gap: 2rem; }
.card { border-radius: 8px; padding: 1.5rem; transition: padding 0.3s ease; }
body.dark-mode .card { background-color: var(--card-bg-dark); border: 1px solid var(--border-dark); }
body:not(.dark-mode) .card { background-color: var(--card-bg-light); border: 1px solid var(--border-light); }
.card h2 { margin-top: 0; padding-bottom: 0.5rem; font-size: 1.3rem; border-bottom: 2px solid var(--accent-dark); }
body.dark-mode .card h2 { color: var(--text-bright-dark); }
body:not(.dark-mode) .card h2 { color: var(--text-light); border-bottom-color: var(--accent-light); }
.card-small { padding: 1rem; }
label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; font-weight: bold; }
body.dark-mode label { color: var(--text-bright-dark); }
body:not(.dark-mode) label { color: var(--text-light); }

.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0);
    white-space: nowrap; border: 0;
}

/* --- INPUT STYLES --- */
input[type="text"], input[type="number"], select, textarea {
    width: 100%; padding: 0.75rem; border-radius: 4px; border: 1px solid;
    font-family: inherit; font-size: 0.9rem; transition: border-color 0.2s, box-shadow 0.2s, padding 0.3s ease;
}
body.dark-mode input, body.dark-mode select, body.dark-mode textarea {
    background-color: var(--bg-dark); color: var(--text-bright-dark); border-color: var(--border-dark);
}
body:not(.dark-mode) input, body:not(.dark-mode) select, body:not(.dark-mode) textarea {
    background-color: #fff; border-color: #ccc; color: #000;
}
#char-name, #mentality-main { border-width: 2px; }
body.dark-mode #char-name, body.dark-mode #mentality-main { border-color: var(--accent-dark); }
body:not(.dark-mode) #char-name, body:not(.dark-mode) #mentality-main { border-color: var(--accent-light); }
body.dark-mode .input-secondary, body.dark-mode .dynamic-fields-container input, body.dark-mode .dynamic-fields-container select { border-color: #4A5568; }
body:not(.dark-mode) .input-secondary, body:not(.dark-mode) .dynamic-fields-container input, body:not(.dark-mode) .dynamic-fields-container select { border-color: #A0AEC0; }
input[readonly].input-secondary { cursor: default; }
body.dark-mode input[readonly].input-secondary { background-color: #2D3748; }
body:not(.dark-mode) input[readonly].input-secondary { background-color: #E2E8F0; }

input:focus, select:focus, textarea:focus { outline: none; }
body.dark-mode input:focus, body.dark-mode select:focus, body.dark-mode textarea:focus { border-color: var(--accent-dark) !important; box-shadow: 0 0 10px var(--accent-dark); }
body:not(.dark-mode) input:focus, body:not(.dark-mode) select:focus, body:not(.dark-mode) textarea:focus { border-color: var(--accent-light) !important; box-shadow: 0 0 10px var(--accent-light); }

.skill-condition-input {
    resize: none;
    overflow-y: hidden;
    line-height: 1.5;
}

.form-row { display: flex; gap: 1.5rem; align-items: flex-end; margin-bottom: 1rem; }
.form-group { flex: 1; }
.h3-divider { font-size: 1rem; padding-bottom: 0.5rem; margin: 2rem 0 1rem 0; font-weight: bold; color: var(--text-bright-dark); border-bottom: 1px solid var(--accent-dark); display: flex; align-items: center; gap: 0.5rem; }
body:not(.dark-mode) .h3-divider { color: var(--text-light); border-bottom-color: var(--accent-light); }
.counter { font-size: 0.8rem; font-weight: normal; color: var(--text-dark); }
body:not(.dark-mode) .counter { color: var(--text-light); opacity: 0.8; }
.mentality-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.sub-profile-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
.dynamic-fields-container { display: flex; flex-direction: column; gap: 1rem; }
button { border: none; border-radius: 4px; cursor: pointer; transition: background-color 0.2s; font-weight: bold; }
.pc-user-controls .user-controls { display: flex; align-items: center; gap: 1.5rem; }
.login-button { background-color: transparent; padding: 0.4rem 1rem; font-size: 0.9rem; }
body.dark-mode .login-button { border: 1px solid var(--accent-dark); color: var(--accent-dark); }
body:not(.dark-mode) .login-button { border: 1px solid var(--accent-light); color: var(--accent-light); }
body.dark-mode .login-button:hover { background-color: var(--accent-dark); color: var(--bg-dark); }
body:not(.dark-mode) .login-button:hover { background-color: var(--accent-light); color: white; }
.btn-small { padding: 0.8rem; font-size: 0.9rem; width: 100%; }
.btn-primary { background-color: var(--accent-dark); color: var(--bg-dark); }
body:not(.dark-mode) .btn-primary { background-color: var(--accent-light); color: white; }
.btn-primary:hover { background-color: var(--accent-hover-dark); }
body:not(.dark-mode) .btn-primary:hover { background-color: var(--accent-hover-light); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; background-color: var(--accent-dark) !important; color: var(--bg-dark) !important; }
body:not(.dark-mode) .btn-primary:disabled { background-color: var(--accent-light) !important; color: white !important; }
.btn-secondary { background-color: transparent !important; }
body.dark-mode .btn-secondary { border: 1px solid var(--border-dark); color: var(--text-dark); }
body:not(.dark-mode) .btn-secondary { border: 1px solid var(--border-light); color: var(--text-light); }
body.dark-mode .btn-secondary:hover { background-color: var(--border-dark) !important; color: var(--text-bright-dark) !important; }
body:not(.dark-mode) .btn-secondary:hover { background-color: var(--border-light) !important; color: var(--text-light) !important; }
.btn-icon { width: auto; padding: 0.3rem 0.8rem; font-size: 1rem; }
body.dark-mode .btn-icon { background-color: var(--border-dark); color: var(--text-bright-dark); }
body:not(.dark-mode) .btn-icon { background-color: var(--border-light); color: var(--text-light); }
body.dark-mode .btn-icon:hover { background-color: #4A5568; }
body:not(.dark-mode) .btn-icon:hover { background-color: #cbd5e0; }
.btn-remove { background-color: #4A5568 !important; }
.btn-remove:hover { background-color: var(--danger-dark) !important; color: white !important; }
.site-header h1 { font-size: 1.2rem; color: var(--text-bright-dark); margin: 0; }
body:not(.dark-mode) .site-header h1 { color: var(--text-light); }
.status-group-row { display: flex; justify-content: space-around; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; gap: 1rem; }

.status-group-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.5rem; }
#dice-ratio-label { margin-bottom: 0; }
.dice-ratio-status { font-weight: bold; font-size: 1.1rem; margin-top: 0; }
body.dark-mode .dice-ratio-status { color: var(--text-bright-dark); }
body:not(.dark-mode) .dice-ratio-status { color: var(--text-light); }
.dice-input-group .dice-label { font-size: 0.8rem; margin-right: 0.5rem; display: inline-block; margin-bottom: 0; }

.dice-inputs { display: flex; gap: 1rem; align-items: center; justify-content: center; }
input[type="number"] { text-align: center; padding: 0.5rem; font-size: 1.2rem; max-width: 60px; -moz-appearance: textfield; appearance: none; -webkit-appearance: none;}
input[type="number"]::-webkit-outer-spin-button, input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.checkbox-container { display: flex; gap: 1.5rem; }
.checkbox-container input[type="checkbox"] { display: none; }
.checkbox-container label { cursor: pointer; width: 25px; height: 25px; border: 2px solid var(--text-dark); display: block; border-radius: 4px; position: relative; transition: box-shadow 0.3s; }
body:not(.dark-mode) .checkbox-container label { border-color: var(--text-light); }
.checkbox-container input[type="checkbox"]:checked + label { background-color: var(--accent-dark); border-color: var(--accent-dark); }
body:not(.dark-mode) .checkbox-container input[type="checkbox"]:checked + label { background-color: var(--accent-light); border-color: var(--accent-light); }
.checkbox-container label:after { content: ''; position: absolute; left: 7px; top: 2px; width: 6px; height: 12px; border: solid white; border-width: 0 3px 3px 0; transform: rotate(45deg); opacity: 0; }
.checkbox-container input[type="checkbox"]:checked + label:after { opacity: 1; }
.image-upload-area { position: relative; border: 2px dashed var(--border-dark); height: 450px; display: flex; justify-content: center; align-items: center; border-radius: 4px; margin-bottom: 1rem; overflow: hidden; }
body.dark-mode .image-upload-area { background-color: var(--bg-dark); }
body:not(.dark-mode) .image-upload-area { background-color: var(--bg-light); border-color: var(--border-light); }
#character-image { width: 100%; height: 100%; object-fit: contain; position: absolute; display: none; }
#image-placeholder { color: var(--text-dark); font-weight: bold; }
body:not(.dark-mode) #image-placeholder { color: var(--text-light); opacity: 0.7; }
.card-header-flex { display: flex; justify-content: space-between; align-items: center; border-bottom: 2px solid var(--accent-dark); margin-bottom: 1rem; }
body:not(.dark-mode) .card-header-flex { border-color: var(--accent-light); }
.card-header-flex h2 { border-bottom: none; flex-grow: 1; }
.card-header-flex .field-controls { display: flex; gap: 0.5rem; }
.skill-entry { border: 1px solid var(--border-dark); border-radius: 6px; padding: 1rem; display: flex; flex-direction: column; gap: 0.75rem; position: relative; }
body:not(.dark-mode) .skill-entry { border-color: var(--border-light); }
.skill-first-row { display: flex; gap: 1rem; }
.skill-entry .btn-remove { position: absolute; top: 0.5rem; right: 0.5rem; }
.button-stack { display: flex; flex-direction: column; gap: 0.75rem; }
.image-url-container { display: flex; align-items: center; gap: 0.5rem; }
.image-url-container input { flex-grow: 1; }
.image-url-container button { flex-shrink: 0; font-size: 0.8rem; padding: 0.6rem; white-space: nowrap; }
.memo-card .form-group { display: flex; flex-direction: column; }
.save-status { font-size: 0.8rem; text-align: center; margin: -0.25rem 0; height: 1.2em; }
body:not(.dark-mode) .save-status { color: var(--text-light); }
.modal-hidden { display: none !important; pointer-events: none; }
.modal-overlay { position: fixed; z-index: 10; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; }
.modal-content { padding: 20px; border: 1px solid var(--border-dark); width: 90%; max-width: 600px; border-radius: 8px; position: relative; }
body.dark-mode .modal-content { background-color: var(--card-bg-dark); }
body:not(.dark-mode) .modal-content { background-color: var(--card-bg-light); }
.modal-close-button { position: absolute; top: 10px; right: 20px; font-size: 28px; font-weight: bold; }
body:dark-mode .modal-close-button { color: var(--text-dark); }
body:not(.dark-mode) .modal-close-button { color: var(--text-light); }
.modal-close-button:hover, .modal-close-button:focus { text-decoration: none; cursor: pointer; }
body:not(.dark-mode) .modal-close-button:hover { color: var(--text-dark); }
#output-textarea { height: 200px; }
.theme-switch-container, .compact-mode-switch-container { display: flex; align-items: center; gap: 0.5rem; }
.theme-icon { font-size: 1.2rem; line-height: 1; }
.switch-label { font-size: 0.8rem; font-weight: bold; }
.theme-switch { position: relative; display: inline-block; width: 50px; height: 26px; }
.theme-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; border-radius: 26px; }
.slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 4px; bottom: 4px; background-color: white; transition: .4s; border-radius: 50%; }
input:checked + .slider { background-color: var(--accent-dark); }
body:not(.dark-mode) input:checked + .slider { background-color: var(--accent-light); }
input:checked + .slider:before { transform: translateX(24px); }
#char-list-modal .modal-content { max-height: 80vh; overflow-y: auto; }
#char-list-container { list-style: none; padding: 0; }
#char-list-container li { padding: 1rem; border-bottom: 1px solid var(--border-dark); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
body:not(.dark-mode) #char-list-container li { border-color: var(--border-light); }
#char-list-container li:hover { background-color: var(--border-dark); }
body:not(.dark-mode) #char-list-container li:hover { background-color: var(--border-light); }
#char-list-container .char-list-buttons { display: flex; gap: 0.5rem; }
.duplicate-char-button, .delete-char-button { padding: 0.3rem 0.6rem; font-size: 0.8rem; color: white; }
.duplicate-char-button { background-color: var(--accent-dark); }
body:not(.dark-mode) .duplicate-char-button { background-color: var(--accent-light); }
.delete-char-button { background-color: var(--danger-dark); }
.terms-of-service { font-size: 0.75rem; margin-top: 1.5rem; opacity: 0.7; }

#toast-container { position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%); z-index: 1000; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.toast-notification { color: white; padding: 1rem 2rem; border-radius: 8px; opacity: 0; transition: opacity 0.5s, transform 0.5s; transform: translateY(20px); pointer-events: none; font-weight: bold; }
.toast-notification.show { opacity: 1; transform: translateY(0); }
.toast-notification.success { background-color: var(--success-color); }
.toast-notification.error { background-color: var(--error-color); }
.toast-notification.info { background-color: var(--info-color); }

#confirm-modal .modal-content { max-width: 400px; }
#confirm-modal p { margin-bottom: 1.5rem; }
.confirm-buttons { display: flex; gap: 1rem; justify-content: flex-end; }
.confirm-buttons .btn-small { width: auto; padding: 0.6rem 1.5rem; }

.site-footer { padding: 2rem 0; text-align: center; font-size: 0.8rem; opacity: 0.8; }
body.dark-mode .site-footer { border-top: 1px solid var(--border-dark); }
body:not(.dark-mode) .site-footer { border-top: 1px solid var(--border-light); }
.site-footer p { margin: 0.5rem 0; }
.site-footer a { color: inherit; font-weight: bold; text-decoration: underline; }
.site-footer a:hover { text-decoration: none; }

/* --- ACCORDION STYLES --- */
.accordion-header { display: flex; justify-content: space-between; align-items: center; cursor: default; }
.accordion-header.no-accordion { cursor: default; }
.right-column .card .accordion-header { display: none; }
.right-column .card .accordion-content { margin-top: 0; }
.accordion-header h2 { border-bottom: none; margin-bottom: 0; }
.card > .accordion-header:first-child + .accordion-content { margin-top: 1.5rem; }
.card-header-flex.accordion-header { border-bottom: none; margin-bottom: 0; }
.card > .card-header-flex.accordion-header + .accordion-content { margin-top: 1rem; }
.accordion-icon { display: none; width: 20px; height: 20px; transition: transform 0.3s ease; border-style: solid; border-width: 0 3px 3px 0; border-color: var(--text-dark); padding: 3px; transform: rotate(45deg); -webkit-transform: rotate(45deg); }
body:not(.dark-mode) .accordion-icon { border-color: var(--text-light); }
.accordion-header.active .accordion-icon { transform: rotate(-135deg); -webkit-transform: rotate(-135deg); }
.accordion-content { overflow: hidden; transition: max-height 0.3s ease-out; }

/* --- COMPACT MODE STYLES --- */
body.compact-mode .card { padding: 0.8rem 1rem; }
body.compact-mode .card-small { padding: 0.8rem; }
body.compact-mode .card h2 { font-size: 1.1rem; padding-bottom: 0.4rem; }
body.compact-mode input[type="text"], body.compact-mode input[type="number"], body.compact-mode select, body.compact-mode textarea { padding: 0.5rem; font-size: 0.85rem; }
body.compact-mode label { margin-bottom: 0.3rem; font-size: 0.8rem; }
body.compact-mode .main-container { gap: 1rem; padding: 1rem; }

/* --- INTERACTIVE STATUS STYLES --- */
@keyframes zantou-flicker-dark { 0%, 100% { box-shadow: 0 0 5px #63B3ED, 0 0 10px #63B3ED; } 50% { box-shadow: 0 0 15px #90CDF4, 0 0 25px #90CDF4; } }
@keyframes zantou-flicker-light { 0%, 100% { box-shadow: 0 0 6px #FBBF24, 0 0 12px #FBBF24; } 50% { box-shadow: 0 0 18px #FDE68A, 0 0 30px #FDE68A; } }

body.dark-mode input[type="checkbox"][data-id^="zantou"]:checked + label { animation: zantou-flicker-dark 2s ease-in-out infinite; }
body:not(.dark-mode) input[type="checkbox"][data-id^="zantou"]:checked + label { animation: zantou-flicker-light 2s ease-in-out infinite; }
input[type="checkbox"][data-id^="overload"]:checked + label { box-shadow: 0 0 10px var(--error-color); }

/* --- HAMBURGER MENU --- */
.hamburger-button { display: none; }
.global-nav { display: none; }
.nav-overlay { display: none; }
.pc-user-controls { display: flex; }

@media (max-width: 900px) {
    .site-wrapper { padding: 0 1rem; }
    .main-container { flex-direction: column; padding: 1rem 0; gap: 1.5rem; }
    .left-column, .center-column, .right-column { width: 100%; }
    .site-header { flex-direction: row; align-items: center; position: relative; }
    .site-header h1 { font-size: 1rem; }
    
    .card-header-flex .field-controls { margin-left: auto; padding-left: 1rem; margin-right: 1.5rem; }
    .card-header-flex > .btn-icon { margin-left: auto; margin-right: 1.5rem; }

    .pc-user-controls { display: none; }

    .hamburger-button {
        display: flex; flex-direction: column; justify-content: space-around;
        width: 30px; height: 30px; background: transparent; border: none; cursor: pointer; padding: 0; z-index: 1001;
    }
    .hamburger-button span {
        width: 30px; height: 3px; border-radius: 2px; transition: all 0.3s;
    }
    body.dark-mode .hamburger-button span { background-color: var(--text-bright-dark); }
    body:not(.dark-mode) .hamburger-button span { background-color: var(--text-light); }
    .hamburger-button.is-active { position: fixed; top: 1rem; right: 1rem; }
    .hamburger-button.is-active span:nth-child(1) { transform: translateY(10px) rotate(45deg); }
    .hamburger-button.is-active span:nth-child(2) { opacity: 0; }
    .hamburger-button.is-active span:nth-child(3) { transform: translateY(-10px) rotate(-45deg); }

    .global-nav {
        position: fixed; top: 0; left: 0; z-index: 1000;
        width: 100%;
        padding: 6rem 1.5rem 2rem;
        transform: translateY(-100%);
        transition: transform 0.3s ease-in-out;
        display: block;
    }
    body.dark-mode .global-nav { background-color: var(--card-bg-dark); border-bottom: 1px solid var(--border-dark); }
    body:not(.dark-mode) .global-nav { background-color: var(--card-bg-light); border-bottom: 1px solid var(--border-light); }
    .global-nav.is-active { transform: translateY(0); }

    body.nav-open { overflow: hidden; }
    .nav-overlay {
        position: fixed; top: 0; left: 0; width: 100%; height: 100%;
        background-color: rgba(0,0,0,0.5);
        z-index: 999;
        display: none;
    }
    .nav-overlay.is-active { display: block; }
    
    .sp-user-controls .user-controls { flex-direction: column; align-items: center; gap: 2rem; }
    .sp-user-controls .login-buttons { display: flex; flex-direction: column; gap: 1rem; align-items: stretch; width: 100%; max-width: 280px; }
    .sp-user-controls .login-button { width: 100%; text-align: center; }

    .status-group-row { flex-direction: row; justify-content: center; align-items: center; gap: 2rem; }
    
    .card { padding: 1rem; }
    .accordion-header { cursor: pointer; }
    .accordion-header.no-accordion { display: none; }
    .right-column .card-small .accordion-content { max-height: 1000px; }
    .accordion-icon { display: inline-block; }
    
    .accordion-content { max-height: 0; }
    .card > .accordion-header:first-child + .accordion-content { margin-top: 0; }
    .card > .card-header-flex.accordion-header + .accordion-content { margin-top: 0; }
    .accordion-header.active + .accordion-content { margin-top: 1rem; }
    
    .left-column .card:first-child .accordion-content { max-height: 500px; }

    body.compact-mode .card { padding: 0.8rem; }
}