/* 공감 AI 다이어리 스타일 */

/* CSS Variables for Design System */
:root {
    /* Color Palette - 따뜻하고 편안한 파스텔톤 */
    --color-cream: #fdf8f0;
    --color-beige: #f5f0e8;
    --color-warm-white: #fefefe;
    --color-soft-brown: #d4c5b1;
    --color-warm-gray: #8b8680;
    --color-dark-gray: #5a5450;

    /* Emotion Colors */
    --color-joy: #ffd700;
    --color-joy-light: #fff8dc;
    --color-sadness: #87ceeb;
    --color-sadness-light: #e6f3ff;
    --color-anger: #ff6b6b;
    --color-anger-light: #ffe0e0;
    --color-fear: #dda0dd;
    --color-fear-light: #f3e5f3;
    --color-surprise: #ffb6c1;
    --color-surprise-light: #ffe4e7;
    --color-calm: #98fb98;
    --color-calm-light: #f0fff0;
    --color-mixed: #d3d3d3;
    --color-mixed-light: #f5f5f5;

    /* Accent Colors */
    --color-primary: #d4a574;
    --color-primary-hover: #c99660;
    --color-secondary: #b8a894;
    --color-success: #a8d5a8;
    --color-danger: #e08080;

    /* Typography */
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 1rem;
    --border-radius-lg: 1.5rem;
    --border-radius-xl: 2rem;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-warm: 0 4px 20px rgba(212, 165, 116, 0.2);

    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-base: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-dark-gray);
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-beige) 100%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    animation: fadeInDown 0.8s ease-out;
}

.header-top {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: var(--spacing-md);
    position: relative;
}

.header-title-group {
    flex: 1;
    max-width: 600px;
}

.btn-settings {
    background: rgba(212, 165, 116, 0.1);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 8px;
}

.btn-settings:hover {
    background: var(--color-primary);
    transform: rotate(90deg) scale(1.1);
}

.btn-settings:active {
    transform: rotate(90deg) scale(0.95);
}

.app-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.title-icon {
    font-size: 2.5rem;
    filter: drop-shadow(var(--shadow-sm));
}

.app-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-warm-gray);
    font-weight: 300;
}

/* Settings Modal */
.settings-modal {
    max-width: 500px;
    width: 90%;
}

.btn-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-warm-gray);
    transition: color 0.2s;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.settings-info {
    background: rgba(212, 165, 116, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.settings-info p {
    margin: 0;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.settings-info p:last-child {
    margin-bottom: 0;
}

.settings-help {
    font-size: var(--font-size-sm);
}

.settings-help a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.settings-help a:hover {
    text-decoration: underline;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-text);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-family: inherit;
    transition: border-color 0.2s;
    background: var(--color-bg);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-warm-gray);
}

.api-status {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-md);
    font-weight: 500;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* Date Section */
.date-section {
    text-align: center;
    animation: fadeIn 1s ease-out 0.2s both;
}

.today-date {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--color-primary);
    background: var(--color-warm-white);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    display: inline-block;
}

/* Diary Input Section */
.diary-input-section {
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.input-container {
    background: var(--color-warm-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.input-container:hover {
    box-shadow: var(--shadow-warm);
    transform: translateY(-2px);
}

.input-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-md);
}

.label-icon {
    font-size: 1.5rem;
}

.diary-input {
    width: 100%;
    min-height: 120px;
    padding: var(--spacing-lg);
    border: 2px solid var(--color-beige);
    border-radius: var(--border-radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-dark-gray);
    background: var(--color-cream);
    resize: vertical;
    transition: all var(--transition-base);
}

.diary-input:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.1);
    background: var(--color-warm-white);
}

.diary-input::placeholder {
    color: var(--color-warm-gray);
}

.input-actions {
    margin-top: var(--spacing-lg);
    display: flex;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

/* 포커스 스타일 개선 (접근성) */
.btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn:focus:not(:focus-visible) {
    outline: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--color-secondary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
    background: #a39181;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--color-danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #d66666;
}

.btn-text {
    background: transparent;
    color: var(--color-primary);
    padding: var(--spacing-sm) var(--spacing-md);
}

.btn-text:hover {
    background: rgba(212, 165, 116, 0.1);
}

.btn-icon {
    font-size: 1.2rem;
}

/* Loading Section */
.loading-section {
    text-align: center;
    padding: var(--spacing-2xl);
    animation: fadeIn var(--transition-base);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-beige);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: var(--font-size-lg);
    color: var(--color-warm-gray);
    font-weight: 300;
}

/* Analysis Result */
.analysis-result {
    animation: fadeInUp var(--transition-slow);
}

.result-container {
    background: var(--color-warm-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.result-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

/* Emotion Display */
.emotion-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--color-cream);
    border-radius: var(--border-radius-md);
}

.emotion-icon-container {
    flex-shrink: 0;
}

.emotion-icon {
    font-size: 4rem;
    filter: drop-shadow(var(--shadow-sm));
    animation: pulse 2s ease-in-out infinite;
}

.emotion-info {
    flex: 1;
}

.emotion-name {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.emotion-intensity {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.intensity-label {
    font-size: var(--font-size-sm);
    color: var(--color-warm-gray);
    white-space: nowrap;
}

.intensity-bar {
    flex: 1;
    height: 8px;
    background: var(--color-beige);
    border-radius: 4px;
    overflow: hidden;
}

.intensity-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 4px;
    transition: width var(--transition-slow);
    animation: fillIntensity 1s ease-out;
}

.intensity-value {
    font-weight: 600;
    color: var(--color-primary);
    white-space: nowrap;
}

/* Empathy Message */
.empathy-message-container {
    margin-bottom: var(--spacing-xl);
}

.empathy-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-md);
}

.empathy-icon {
    font-size: 1.5rem;
}

.empathy-message {
    background: var(--color-cream);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-dark-gray);
    border-left: 4px solid var(--color-primary);
    animation: fadeInRight var(--transition-slow) 0.5s both;
}

/* Result Actions */
.result-actions {
    text-align: center;
}

/* Diary List Section */
.diary-list-section {
    margin-top: var(--spacing-2xl);
    animation: fadeIn var(--transition-slow) 1s both;
}

.list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.list-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-dark-gray);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.diary-list {
    background: var(--color-warm-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.diary-list-content {
    max-height: 400px;
    overflow-y: auto;
}

/* Diary Entry */
.diary-entry {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-beige);
    transition: all var(--transition-base);
    animation: slideInLeft var(--transition-base);
}

.diary-entry:last-child {
    border-bottom: none;
}

.diary-entry:hover {
    background: var(--color-cream);
}

.entry-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.entry-date {
    font-size: var(--font-size-sm);
    color: var(--color-warm-gray);
    font-weight: 500;
}

.entry-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    border-radius: var(--border-radius-sm);
}

.entry-content {
    font-size: var(--font-size-base);
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.entry-emotion {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.entry-emotion-icon {
    font-size: 1.5rem;
}

.entry-emotion-text {
    color: var(--color-warm-gray);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-warm-gray);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    display: block;
}

.empty-text {
    font-size: var(--font-size-lg);
    line-height: 1.6;
}

/* Footer */
.footer {
    margin-top: var(--spacing-2xl);
    text-align: center;
    padding: var(--spacing-lg);
}

.footer-text {
    color: var(--color-warm-gray);
    font-size: var(--font-size-sm);
    font-weight: 300;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn var(--transition-base);
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--color-warm-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    width: 90%;
    position: relative;
    z-index: 1001;
    animation: scaleIn var(--transition-base);
}

.modal-header {
    padding: var(--spacing-lg) var(--spacing-lg) 0;
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-dark-gray);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-body p {
    margin-bottom: var(--spacing-sm);
}

.modal-warning {
    color: var(--color-danger);
    font-size: var(--font-size-sm);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    justify-content: flex-end;
}

/* Toast */
.toast {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    background: var(--color-success);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: 1002;
    animation: slideInRight var(--transition-base);
}

.toast-icon {
    font-size: 1.2rem;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.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;
}

/* Emotion-specific colors */
.emotion-joy {
    color: var(--color-joy);
    background-color: var(--color-joy-light);
}

.emotion-sadness {
    color: var(--color-sadness);
    background-color: var(--color-sadness-light);
}

.emotion-anger {
    color: var(--color-anger);
    background-color: var(--color-anger-light);
}

.emotion-fear {
    color: var(--color-fear);
    background-color: var(--color-fear-light);
}

.emotion-surprise {
    color: var(--color-surprise);
    background-color: var(--color-surprise-light);
}

.emotion-calm {
    color: var(--color-calm);
    background-color: var(--color-calm-light);
}

.emotion-mixed {
    color: var(--color-mixed);
    background-color: var(--color-mixed-light);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

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

@keyframes slideInLeft {
    from {
        transform: translateX(-20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes fillIntensity {
    from {
        width: 0;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }

    .app-title {
        font-size: var(--font-size-2xl);
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .title-icon {
        font-size: 2rem;
    }

    .app-subtitle {
        font-size: var(--font-size-base);
    }

    .emotion-display {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .emotion-icon {
        font-size: 3rem;
    }

    .intensity-bar {
        min-width: 100px;
    }

    .list-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .entry-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }

    .modal-content {
        width: 95%;
        margin: var(--spacing-md);
    }

    .modal-actions {
        flex-direction: column;
    }

    .toast {
        top: var(--spacing-md);
        right: var(--spacing-md);
        left: var(--spacing-md);
        width: auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-sm);
    }

    .input-container,
    .result-container,
    .diary-list {
        padding: var(--spacing-md);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .diary-input {
        min-height: 100px;
        padding: var(--spacing-md);
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #8b4513;
        --color-warm-gray: #4a4a4a;
        --color-dark-gray: #2a2a2a;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .input-actions,
    .result-actions,
    .entry-actions,
    .list-header button,
    .modal,
    .toast {
        display: none !important;
    }

    .container {
        max-width: none;
        box-shadow: none;
    }

    .diary-list {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}