:root {
    --primary-color: #FF6B35;
    --primary-hover: #E55A2B;
    --secondary-color: #FFF5F0;
    --text-primary: #1A1A1A;
    --text-secondary: #6B6B6B;
    --border-color: #E5E5E5;
    --background: #FFFFFF;
    --background-secondary: #F9F9F9;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
    position: relative;
}

/* 페이지 진입 애니메이션 오버레이 */
.page-enter-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 9999;
    pointer-events: none;
    opacity: 1;
    transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-enter-overlay.fade-out {
    opacity: 0;
}

.page-enter-overlay.hidden {
    display: none;
}

.app-loading #app-page {
    visibility: hidden;
    opacity: 0;
}

.app-ready #app-page {
    visibility: visible;
    opacity: 1;
    animation: pageEnter 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes pageEnter {
    0% {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.hidden {
    display: none !important;
}

/* 페이지 전환 */
.page {
    display: none;
    width: 100%;
    height: 100vh;
}

.page.active {
    display: flex;
}

/* 로그인 페이지 */
.login-container {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #FFF5F0 0%, #FFFFFF 100%);
}

.login-card {
    background: var(--background);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 48px;
    width: 100%;
    max-width: 440px;
    animation: fadeInUp 0.4s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo {
    display: inline-flex;
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 16px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input {
    padding: 12px 16px;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
    background: var(--background);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-full {
    width: 100%;
}

.login-footer {
    margin-top: 24px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

/* 애플리케이션 레이아웃 */
#app-page {
    display: flex;
    width: 100%;
    height: 100vh;
}

/* 사이드바 - 고급스러운 글래스 효과 */
.sidebar {
    width: 280px;
    background: rgba(249, 249, 249, 0.85);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    border-right: 1px solid rgba(229, 229, 229, 0.6);
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.03);
}

.sidebar-scroll {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar.collapsed {
    width: 0;
    overflow: hidden;
}

.sidebar-overlay {
    display: none;
}

.sidebar-overlay.visible {
    display: block;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.project-sidebar {
    border-bottom: 1px solid var(--border-color);
    padding: 12px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-shrink: 0;
}

.project-sidebar-items {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.project-sidebar-title {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.project-item {
    padding: 10px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-primary);
    transition: var(--transition);
}

.project-item:hover {
    background: var(--background);
}

.project-item.active {
    background: var(--secondary-color);
    color: var(--primary-color);
    font-weight: 600;
}

.project-sidebar-empty {
    font-size: 13px;
    color: var(--text-secondary);
}

.logo-small {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.logo-small svg {
    flex-shrink: 0;
}

.new-chat-group {
    display: flex;
    align-items: center;
    gap: 4px;
    position: relative;
}

.btn-new-chat {
    width: 100%;
    padding: 0 16px;
    background: var(--background);
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
    height: 44px;
    position: relative;
    overflow: hidden;
}

.btn-new-chat::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 107, 53, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-new-chat:hover {
    background: var(--secondary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.15);
}

.btn-new-chat:hover::before {
    width: 300px;
    height: 300px;
}

.btn-new-chat:active {
    transform: translateY(0);
}

.btn-chat-dropdown {
    border: 1.5px solid var(--border-color);
    background: var(--background);
    border-radius: 8px;
    padding: 0 12px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
    height: 44px;
    display: flex;
    align-items: center;
}

.btn-chat-dropdown:hover {
    background: var(--background-secondary);
    color: var(--text-primary);
}

.project-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    min-width: 180px;
    z-index: 50;
}

.project-menu.hidden {
    display: none;
}

.project-menu button {
    background: transparent;
    border: none;
    padding: 10px 14px;
    text-align: left;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.project-menu button:hover {
    background: var(--background-secondary);
}

.context-menu {
    position: absolute;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    display: flex;
    flex-direction: column;
    z-index: 600;
}

.context-menu.hidden {
    display: none;
}

.context-menu button {
    border: none;
    background: transparent;
    padding: 10px 14px;
    text-align: left;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.context-menu button:hover {
    background: var(--background-secondary);
}

.chat-history {
    flex: 1;
    padding: 12px;
}

.chat-history-item {
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-history-item .chat-title {
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.chat-history-item:hover {
    background: var(--background);
}

.chat-history-item.active {
    background: var(--secondary-color);
    color: var(--primary-color);
    font-weight: 500;
}

.chat-project-tag {
    display: inline-block;
    margin-left: 6px;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 999px;
    background: rgba(255, 107, 53, 0.12);
    color: var(--primary-color);
}

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-upgrade {
    background: linear-gradient(135deg, #FF6B35 0%, #FF8960 100%);
    color: #FFFFFF;
    padding: 14px 16px;
    align-items: center;
    justify-content: flex-start;
    /* box-shadow: 0 8px 20px rgba(255, 107, 53, 0.25); */
}

.sidebar-upgrade:hover {
    background: linear-gradient(135deg, #FF7D4D 0%, #FFA37C 100%);
    color: #FFFFFF;
}

.sidebar-upgrade-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffc700;
}

.sidebar-upgrade-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.sidebar-upgrade-text .title {
    font-weight: 600;
    font-size: 14px;
}

.sidebar-upgrade-text .subtitle {
    font-size: 12px;
    opacity: 0.85;
    margin-top: 2px;
}

.sidebar-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: none;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-btn:hover {
    background: var(--background);
}

.sidebar-upgrade.sidebar-btn:hover {
    background: linear-gradient(135deg, #FF7D4D 0%, #FFA37C 100%);
    color: #FFFFFF;
}

/* 메인 컨텐츠 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chat-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--background);
    position: sticky;
    top: 0;
    z-index: 150;
}

.btn-toggle-sidebar {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    color: var(--text-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-toggle-sidebar:hover {
    background: var(--background-secondary);
    color: var(--text-primary);
}

.service-selector {
    display: flex;
    align-items: center;
    gap: 12px;
}

.service-selector label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.service-dropdown {
    padding: 8px 16px;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--background);
    cursor: pointer;
    transition: var(--transition);
    min-width: 150px;
}

.service-dropdown:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 메시지 영역 */
.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    background: var(--background);
}

.welcome-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    animation: welcomeFadeIn 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.3s backwards;
}

@keyframes welcomeFadeIn {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.welcome-icon {
    margin-bottom: 24px;
}

.welcome-screen h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.welcome-screen p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.project-view {
    display: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 16px;
    padding: 32px;
    text-align: left;
}

.project-view.active {
    display: flex;
}

.project-view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.project-chats-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.project-chat-item {
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    background: var(--background);
}

.project-chat-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.project-chat-item h4 {
    font-size: 15px;
    margin-bottom: 6px;
}

.project-chat-meta {
    font-size: 13px;
    color: var(--text-secondary);
}

.example-prompts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    width: 100%;
    max-width: 600px;
}

.example-prompt {
    padding: 16px 20px;
    background: var(--background-secondary);
    border: 1.5px solid var(--border-color);
    border-radius: 14px;
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: left;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.example-prompt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), #FF8960);
    transform: translateY(-3px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.example-prompt:hover {
    background: var(--secondary-color);
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.2);
}

.example-prompt:hover::before {
    transform: translateY(0);
}

.example-prompt:active {
    transform: translateY(-2px);
}

.suggested-section {
    margin-top: 36px;
    width: 100%;
    max-width: 600px;
    text-align: left;
}

.suggested-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.suggested-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.suggested-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 18px 20px;
    border-radius: 16px;
    border: 2px solid var(--border-color);
    background: var(--background);
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: left;
    position: relative;
    overflow: hidden;
}

.suggested-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #FFB88C);
    transform: translateY(4px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.suggested-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 16px 40px rgba(255, 107, 53, 0.18);
    transform: translateY(-6px) scale(1.02);
    background: linear-gradient(135deg, #FFFFFF 0%, #FFF8F5 100%);
}

.suggested-card:hover::after {
    transform: translateY(0);
}

.suggested-card:active {
    transform: translateY(-3px) scale(1);
}

.suggested-title {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
}

.suggested-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

#selection-tooltip {
    position: absolute;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--text-primary);
    color: #FFFFFF;
    border-radius: 999px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.15);
    padding: 6px 8px;
    z-index: 1500;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.15s ease;
}

#selection-tooltip.visible {
    display: flex;
    opacity: 1;
}

.selection-tooltip-btn {
    border: none;
    background: transparent;
    color: inherit;
    font-size: 13px;
    font-weight: 600;
    padding: 4px 12px;
    cursor: pointer;
    border-radius: 999px;
    transition: background 0.15s ease, transform 0.15s ease;
}

.selection-tooltip-btn:hover {
    background: rgba(255, 255, 255, 0.16);
    transform: translateY(-1px);
}

#selection-popup {
    position: absolute;
    display: none;
    background: var(--background);
    border: 1px solid rgba(0, 0, 0, 0.04);
    border-radius: 12px;
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.18);
    max-width: 340px;
    width: min(340px, calc(100vw - 32px));
    padding: 14px 18px;
    z-index: 1500;
    opacity: 0;
    transition: opacity 0.15s ease;
}

#selection-popup.visible {
    display: block;
    opacity: 1;
}

#selection-popup .popup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 8px;
}

#selection-popup .popup-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

#selection-popup .popup-close {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    border-radius: 6px;
    padding: 2px 6px;
    transition: background 0.15s ease, color 0.15s ease;
}

#selection-popup .popup-close:hover {
    background: var(--background-secondary);
    color: var(--text-primary);
}

#selection-popup .popup-body {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    word-break: break-word;
}

#selection-popup.loading .popup-body {
    color: var(--text-secondary);
    font-style: italic;
}

#selection-popup.error .popup-body {
    color: #D14343;
}

.onboarding-content {
    max-width: 640px;
    width: 90%;
}

.modal-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.onboarding-body {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.onboarding-questions {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.onboarding-question {
    border: 1.5px solid var(--border-color);
    border-radius: 14px;
    padding: 18px;
    background: var(--background-secondary);
}

.onboarding-question h3 {
    font-size: 16px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.onboarding-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.onboarding-option {
    flex: 1 1 calc(50% - 10px);
    min-width: 120px;
    border: 1.5px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    background: var(--background);
}

.onboarding-option:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.onboarding-option.active {
    border-color: var(--primary-color);
    background: rgba(255, 107, 53, 0.08);
    color: var(--primary-color);
    font-weight: 600;
}

.onboarding-option.active .onboarding-option-desc {
    color: var(--primary-color);
}

.onboarding-option-title {
    font-size: 14px;
    font-weight: 600;
}

.onboarding-option-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

.onboarding-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.onboarding-hint {
    font-size: 13px;
    color: var(--text-secondary);
}

.settings-body {
    padding: 0;
}

.settings-layout {
    display: flex;
    gap: 24px;
}

.settings-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 160px;
}

.settings-tab {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 12px;
    text-align: left;
    font-size: 14px;
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
}

.settings-tab.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.settings-panels {
    flex: 1;
}

.settings-panel {
    display: none;
    flex-direction: column;
    gap: 16px;
}

.settings-panel.active {
    display: flex;
}

#settings-modal .modal-content {
    max-width: 720px;
    width: 95%;
}

.account-email {
    font-size: 14px;
    color: var(--text-secondary);
}

.wide-modal {
    max-width: 900px;
}

.projects-body,
.library-body,
.gallery-body,
.memory-body {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.project-form,
.memory-form {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    background: var(--background-secondary);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.project-list,
.library-body,
.gallery-body,
.memory-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.project-card,
.library-card,
.gallery-card,
.memory-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    background: var(--background);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.memory-card p {
    margin-bottom: 6px;
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.project-card h4 {
    margin: 0;
    font-size: 16px;
}

.project-meta,
.library-meta,
.memory-meta {
    font-size: 13px;
    color: var(--text-secondary);
}

.memory-actions {
    display: flex;
    justify-content: flex-end;
}

.memory-delete-btn {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: var(--transition);
}

.memory-delete-btn:hover {
    background: var(--background-secondary);
    color: var(--primary-color);
}

.project-actions,
.library-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.upload-label {
    cursor: pointer;
    align-items: center;
}

.upload-label input {
    display: none;
}

.project-asset-list,
.memory-tags {
    margin-top: 10px;
    padding-left: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.project-asset-list ul {
    margin: 6px 0 0;
    padding-left: 18px;
}

.library-card h4,
.gallery-card h4 {
    margin-bottom: 6px;
    font-size: 16px;
}

.library-prompt {
    background: var(--background-secondary);
    border-radius: 10px;
    padding: 12px;
    font-size: 13px;
    white-space: pre-wrap;
    word-break: break-word;
}

.gallery-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.gallery-tag {
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 999px;
    background: var(--background-secondary);
    color: var(--text-secondary);
}

/* 메시지 스타일 */
.message {
    margin-bottom: 24px;
    animation: fadeIn 0.3s ease-out;
}

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

.message-content {
    max-width: 800px;
    margin: 0 auto;
}

.message.user .message-content {
    background: var(--background-secondary);
    padding: 16px 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.message.assistant .message-content {
    padding: 16px 0;
}

.message-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-weight: 600;
    font-size: 14px;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    color: white;
}

.message.user .message-avatar {
    background: linear-gradient(135deg, #d6ea66 0%, #de8818 100%);
}

.message.assistant .message-avatar {
    background: var(--primary-color); 
}

.message-text {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
    white-space: normal;
    word-break: break-word;
}

.message.assistant .message-text {
    margin-left: 44px;
}

.markdown-body p {
    margin: 0 0 10px;
}

.markdown-body p:last-child {
    margin-bottom: 0;
}

.markdown-body ul,
.markdown-body ol {
    margin: 0 0 10px;
    padding-left: 20px;
}

.markdown-body code {
    background: var(--background-secondary);
    border-radius: 6px;
    padding: 2px 6px;
    font-size: 13px;
}

.markdown-body pre {
    background: var(--background-secondary);
    border-radius: 12px;
    padding: 12px;
    overflow-x: auto;
    margin: 0 0 12px;
    font-size: 13px;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
}

.markdown-body blockquote {
    margin: 0 0 10px;
    padding-left: 12px;
    border-left: 4px solid var(--border-color);
    color: var(--text-secondary);
}

/* 프롬프트 옵션 스타일 */
.prompt-options {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.prompt-option {
    padding: 16px;
    background: var(--background-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.prompt-option:hover {
    border-color: var(--primary-color);
    background: var(--secondary-color);
}

.prompt-option.selected {
    border-color: var(--primary-color);
    background: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.prompt-option-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.radio-indicator {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.prompt-option.selected .radio-indicator {
    border-color: var(--primary-color);
}

.radio-indicator::after {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary-color);
    transform: scale(0);
    transition: var(--transition);
}

.prompt-option.selected .radio-indicator::after {
    transform: scale(1);
}

.prompt-option-title {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
}

.prompt-option-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-left: 32px;
}

.prompt-options-message .prompt-options {
    margin-left: 44px;
}

.prompt-options-message .prompt-option-actions {
    margin: 16px 0 0 44px;
    display: flex;
    gap: 12px;
}

.prompt-option-actions button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.prompt-options-message .prompt-option-status {
    margin: 12px 0 0 44px;
    font-size: 13px;
    color: var(--text-secondary);
}

.prompt-options-message.completed .prompt-option {
    cursor: default;
    pointer-events: none;
}

.survey-message .message-content {
    padding: 16px 0;
}

.survey-body {
    margin-left: 44px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.survey-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-color);
}

.survey-prompt {
    font-size: 15px;
    color: var(--text-primary);
}

.survey-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.survey-option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    background: var(--background-secondary);
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
    cursor: pointer;
}

.survey-option:hover {
    border-color: var(--primary-color);
}

.survey-option input {
    margin-top: 4px;
}

.survey-option span {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
}

.survey-input-wrapper {
    background: var(--background-secondary);
    border-radius: 12px;
    padding: 12px;
    border: 1.5px solid var(--border-color);
}

.survey-input {
    width: 100%;
    border: none;
    background: transparent;
    resize: vertical;
    min-height: 90px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text-primary);
}

.survey-input:focus {
    outline: none;
}

.survey-actions {
    display: flex;
    gap: 10px;
}

.survey-status {
    font-size: 13px;
    color: var(--text-secondary);
}

.survey-answer-summary {
    background: rgba(255, 107, 53, 0.08);
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 14px;
    color: var(--text-primary);
}

.survey-message.completed .survey-option {
    cursor: default;
    border-color: var(--border-color);
    pointer-events: none;
}

.survey-message.completed .survey-input-wrapper {
    opacity: 0.85;
}

/* 입력 영역 */
.input-container {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    background: var(--background);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.attachment-bar {
    width: 100%;
    max-width: 800px;
    display: none;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 auto 12px;
}

.attachment-bar:not(.hidden) {
    display: flex;
    justify-content: flex-start;
}

.chat-form {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 12px;
    align-items: flex-end;
}

.attach-controls {
    display: inline-flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    position: relative;
}

#message-input {
    padding: 14px 18px;
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    resize: none;
    max-height: 200px;
    transition: var(--transition);
    line-height: 1.5;
}

#message-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.btn-send {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    border: none;
    border-radius: 12px;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-send:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.btn-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-attach {
    width: 50px;
    height: 50px;
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 20px;
    transition: var(--transition);
}

.btn-attach:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-attach-main {
    font-size: 22px;
    font-weight: 600;
}

.attach-menu {
    position: absolute;
    bottom: 58px;
    left: 0;
    display: flex;
    flex-direction: column;
    min-width: 220px;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 6px;
    gap: 4px;
    z-index: 50;
}

.attach-menu.hidden {
    display: none;
}

.attach-menu button {
    border: none;
    background: transparent;
    padding: 10px 12px;
    border-radius: 8px;
    text-align: left;
    font-size: 14px;
    cursor: pointer;
    color: var(--text-primary);
    display: flex;
    gap: 8px;
    align-items: center;
}

.attach-menu button:hover {
    background: var(--background-secondary);
}

.attachment-chip {
    font: inherit;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--background);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.attachment-chip:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.attachment-chip:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.attachment-bar .attachment-chip {
    background: var(--background-secondary);
}

.attachment-chip-label {
    pointer-events: none;
}

.attachment-bar .attachment-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 600;
    background: rgba(0, 0, 0, 0.08);
    color: var(--text-secondary);
    margin-left: 2px;
    transition: var(--transition);
}

.attachment-bar .attachment-remove:hover {
    background: rgba(0, 0, 0, 0.15);
    color: var(--text-primary);
}

.attachment-bar .attachment-remove:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.message-attachments {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.message-attachments .attachment-chip {
    background: var(--background);
}

.message-attachments .attachment-chip:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* 첨부 파일 뷰어 */
.attachment-viewer {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 1200;
}

.attachment-viewer-content {
    width: min(960px, 100%);
    max-height: 90vh;
    background: var(--background);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.attachment-viewer-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.attachment-viewer-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.attachment-viewer-meta {
    font-size: 13px;
    color: var(--text-secondary);
}

.attachment-viewer-body {
    flex: 1;
    background: var(--background-secondary);
    display: flex;
    align-items: stretch;
    justify-content: center;
    min-height: 320px;
}

.attachment-viewer-body img,
.attachment-viewer-body iframe,
.attachment-viewer-body embed {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.attachment-viewer-body iframe,
.attachment-viewer-body embed {
    border: none;
}

.attachment-text-preview {
    width: 100%;
    padding: 24px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
    background: var(--background);
    color: var(--text-primary);
    overflow: auto;
}

.attachment-viewer-placeholder,
.attachment-fallback {
    padding: 24px;
    text-align: center;
    color: var(--text-secondary);
    width: 100%;
}

.attachment-fallback a {
    margin-top: 12px;
}

/* 모달 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease-out;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--background);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    font-size: 20px;
    font-weight: 700;
}

.btn-close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    color: var(--text-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-close:hover {
    background: var(--background-secondary);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.pricing-modal-content {
    max-width: 880px;
}

.pricing-body {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.billing-toggle {
    display: inline-flex;
    align-self: center;
    gap: 6px;
    padding: 6px;
    border-radius: 999px;
    background: var(--background-secondary);
    box-shadow: var(--shadow-sm);
}

.billing-option {
    border: none;
    background: transparent;
    padding: 8px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.billing-option:hover {
    color: var(--text-primary);
}

.billing-option.active {
    background: var(--background);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.billing-badge {
    background: var(--primary-color);
    color: #FFFFFF;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 999px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.plan-card {
    background: var(--background-secondary);
    border-radius: 16px;
    padding: 24px;
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    transition: var(--transition);
}

.plan-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.plan-card.popular {
    background: #FFF2E9;
    border-color: var(--primary-color);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.18);
}

.plan-tag {
    position: absolute;
    top: 18px;
    right: 24px;
    background: var(--primary-color);
    color: #FFFFFF;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
    letter-spacing: 0.04em;
}

.plan-header {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.plan-tier {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.plan-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.plan-price {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.plan-amount {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.plan-period {
    font-size: 14px;
    color: var(--text-secondary);
}

.plan-note {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
}

.plan-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.plan-features li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.plan-features li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: 700;
}

.plan-cta {
    margin-top: auto;
    padding: 12px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.plan-cta.primary {
    background: var(--primary-color);
    color: #FFFFFF;
    border: none;
}

.plan-cta.primary:hover {
    background: var(--primary-hover);
}

.plan-cta.secondary {
    background: transparent;
    border: 1.5px solid var(--border-color);
    color: var(--text-primary);
}

.plan-cta.secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

@media (max-width: 900px) {
    .pricing-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
}

@media (max-width: 600px) {
    .billing-toggle {
        align-self: stretch;
        justify-content: space-between;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .plan-card {
        padding: 20px;
    }
}

.btn-secondary {
    background: var(--background-secondary);
    color: var(--text-primary);
    border: 1.5px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--background);
    border-color: var(--text-primary);
}

.help-text {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.github-attach-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.github-attach-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    flex-wrap: wrap;
}

.github-attach-status {
    min-height: 18px;
    font-size: 13px;
    color: var(--text-secondary);
}

.github-attach-status.error {
    color: #C62828;
}

.github-attach-status.success {
    color: var(--primary-color);
}

.github-attach-status.loading {
    color: var(--text-secondary);
}

.github-repo-body {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.github-repo-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.github-repo-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    flex-wrap: wrap;
}

.github-repo-status {
    min-height: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

.github-repo-status.error {
    color: #C62828;
}

.github-repo-status.success {
    color: var(--primary-color);
}

.github-repo-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
}

.github-repo-card {
    border: 1px solid var(--border-color);
    background: var(--background-secondary);
    font: inherit;
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.github-repo-card:hover {
    border-color: var(--primary-color);
    background: var(--background);
}

.github-repo-card:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.github-repo-card h4 {
    font-size: 15px;
    margin: 0;
}

.github-repo-card p {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
}

.github-repo-meta {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 로딩 애니메이션 */
.typing-indicator {
    display: flex;
    gap: 6px;
    padding: 16px 0;
    margin-left: 44px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
    animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-8px);
    }
}

/* 스크롤바 스타일 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    body {
        overflow: auto;
    }

    #app-page {
        flex-direction: column;
        height: auto;
        min-height: 100vh;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        z-index: 400;
        transform: translateX(-100%);
        width: 260px;
        box-shadow: var(--shadow-lg);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }

    .sidebar.collapsed {
        width: 260px;
    }

    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.35);
        z-index: 350;
        display: none;
    }

    .sidebar-overlay.visible {
        display: block;
    }

    .main-content {
        width: 100%;
        overflow: visible;
    }

    .new-chat-group {
        width: 100%;
        justify-content: space-between;
    }

    .project-menu {
        right: 16px;
    }

    .chat-header {
        padding: 12px 16px;
        gap: 12px;
    }

    .service-selector {
        flex: 1;
        flex-direction: row;
        align-items: center;
        gap: 8px;
    }
    
    .service-selector label {
        font-size: 13px;
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .new-chat-group {
        width: 100%;
        justify-content: space-between;
    }

    .project-menu {
        right: 16px;
    }

    .service-dropdown {
        width: auto;
        flex: 1;
    }
    
    .messages-container {
        padding: 16px;
        padding-bottom: 120px;
    }

    .welcome-screen h2 {
        font-size: 26px;
    }

    .welcome-screen p {
        font-size: 15px;
    }
    
    .input-container {
        padding: 16px;
        align-items: stretch;
        position: sticky;
        bottom: 0;
        background: var(--background);
        border-top: 1px solid var(--border-color);
        box-shadow: 0 -6px 16px rgba(0, 0, 0, 0.06);
        z-index: 120;
    }

    .attachment-bar {
        max-width: 100%;
    }

    .chat-form {
        grid-template-columns: auto 1fr auto;
        gap: 10px;
    }

    #message-input {
        width: 100%;
        min-height: 56px;
    }

    .btn-send {
        width: 48px;
        height: 48px;
    }
    
    .example-prompts {
        grid-template-columns: 1fr;
    }

    .suggested-grid {
        grid-template-columns: 1fr;
    }

    .suggested-card {
        padding: 16px 18px;
    }
    
    .login-container {
        padding: 32px 16px;
        align-items: flex-start;
    }
    
    .login-card {
        margin: 0;
        padding: 28px 24px;
    }

    .login-header h1 {
        font-size: 28px;
    }

    .subtitle {
        font-size: 15px;
    }

    .project-view {
        padding: 24px 16px;
    }

    .settings-layout {
        flex-direction: column;
    }

    .settings-nav {
        flex-direction: row;
        overflow-x: auto;
    }

    .settings-tab {
        flex: 1;
        text-align: center;
    }

    .attachment-viewer {
        padding: 16px;
    }

    .attachment-viewer-content {
        border-radius: 12px;
    }

    .attachment-viewer-body {
        min-height: 60vh;
    }
}

@media (max-width: 480px) {
    .chat-header {
        padding: 10px 14px;
    }

    .messages-container {
        padding: 12px;
        padding-bottom: 110px;
    }

    .input-container {
        padding: 12px;
    }

    #message-input {
        min-height: 52px;
    }

    .btn-send {
        width: 44px;
        height: 44px;
    }

    .login-card {
        padding: 24px 20px;
    }

    .login-header h1 {
        font-size: 26px;
    }

    .subtitle {
        font-size: 14px;
    }

    .welcome-screen h2 {
        font-size: 24px;
    }

    .welcome-screen p {
        font-size: 14px;
    }

    .suggested-card {
        padding: 14px 16px;
    }

    .suggested-title {
        font-size: 14px;
    }

    .suggested-description {
        font-size: 13px;
    }

    #selection-popup {
        width: calc(100vw - 24px);
        padding: 12px 14px;
    }

    #selection-popup .popup-title {
        font-size: 13px;
    }

    .selection-tooltip-btn {
        font-size: 12px;
        padding: 4px 10px;
    }
    
    .service-selector {
        flex-direction: row;
        align-items: center;
        gap: 8px;
    }

    .service-dropdown {
        flex: 1;
    }

    .label-desktop {
        display: none;
    }

    .label-mobile {
        display: inline;
        font-size: 13px;
    }

    .onboarding-content {
        width: 96%;
    }

    .onboarding-option {
        flex: 1 1 100%;
    }

    .onboarding-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .project-view {
        padding: 20px 12px;
    }

    .project-menu {
        min-width: 150px;
        right: 8px;
    }
}

/* 최종 프롬프트 표시 */
.final-prompt-container {
    margin-top: 16px;
    padding: 16px;
    background: var(--secondary-color);
    border: 2px solid var(--primary-color);
    border-radius: 12px;
}

.final-prompt-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.final-prompt-title {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 14px;
}

.final-prompt-text {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    white-space: pre-wrap;
    margin-bottom: 12px;
}

.btn-send-to-ai {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-send-to-ai:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
#settings-modal .modal-content {
    max-width: 720px;
    width: 95%;
}

.account-email {
    font-size: 14px;
    color: var(--text-secondary);
}

.label-mobile {
    display: none;
}
#message-input:focus {
    outline: none;
}