:root {
    /* Trendy Minimalist Palette (Light Mode) */
    --bg-color: #fcfcfc;
    --text-main: #1a1a1a;
    --text-muted: #707070;
    --accent-color: #000000;
    --border-color: #eeeeee;
    --card-bg: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --hero-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.light-mode {
    --bg-color: #0a0a0a;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --accent-color: #ffffff;
    --border-color: #222222;
    --card-bg: #111111;
    --glass-bg: rgba(0, 0, 0, 0.8);
    --hero-gradient: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Pretendard', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
    background-image: url("https://www.transparenttextures.com/patterns/cubes.png"); /* Subtle texture */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Glass Navigation */
.glass-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    height: 70px;
    display: flex;
    align-items: center;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

#theme-toggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-main);
    padding: 8px;
    border-radius: 50%;
    transition: 0.3s;
}

#theme-toggle:hover {
    background: var(--border-color);
}

/* Hero Section */
.hero-section {
    padding: 100px 0 60px;
    background: var(--hero-gradient);
    text-align: center;
    margin-bottom: 60px;
    border-radius: 0 0 40px 40px;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -1.5px;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-muted);
}

/* Add Item Section */
#add-item-section {
    margin-bottom: 80px;
}

.section-header {
    margin-bottom: 32px;
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.main-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 32px;
    align-items: start;
}

@media (max-width: 1024px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}

.analysis-panel {
    background: var(--card-bg);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    padding: 30px;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: 0.3s;
    box-shadow: 0 10px 40px rgba(0,0,0,0.03);
}

.analysis-panel.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
}

.panel-header i {
    color: #ffaa00;
    font-size: 1.2rem;
}

.panel-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.analysis-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.placeholder-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
    margin-top: 40px;
}

.analysis-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: rgba(0,0,0,0.03);
    border-radius: 12px;
}

.light-mode .analysis-item {
    background: rgba(255,255,255,0.05);
}

.analysis-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.analysis-value {
    font-size: 0.9rem;
    font-weight: 700;
}

.color-palette {
    display: flex;
    gap: 8px;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.color-chip {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    cursor: pointer;
    border: 2px solid var(--border-color);
    transition: 0.3s;
    position: relative;
}

.color-chip:hover {
    transform: scale(1.1);
    z-index: 10;
}

.color-chip::after {
    content: attr(data-hex);
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.6rem;
    opacity: 0;
    transition: 0.3s;
    white-space: nowrap;
}

.color-chip:hover::after {
    opacity: 1;
    bottom: -25px;
}

@media (max-width: 768px) {
    #add-item-form {
        grid-template-columns: 1fr;
    }
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    aspect-ratio: 4/5;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: 0.3s;
    overflow: hidden;
    position: relative;
    padding: 20px;
}

.upload-area:hover {
    border-color: var(--accent-color);
    background: rgba(0,0,0,0.02);
}

.upload-area i {
    font-size: 2.5rem;
    color: var(--text-muted);
}

.input-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input, .form-group select {
    padding: 14px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
    transition: 0.3s;
}

.form-group input:focus, .form-group select:focus {
    border-color: var(--accent-color);
}

.primary-btn {
    grid-column: 1 / -1;
    padding: 18px;
    border-radius: 12px;
    border: none;
    background: var(--accent-color);
    color: var(--bg-color);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* Gallery Section */
#closet-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

.gallery-filters {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.gallery-filters span {
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: 0.3s;
}

.gallery-filters span.active {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
}


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

/* ====================================================================
   ** Footer Styles **
   ==================================================================== */
.main-footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 40px;
    margin-top: 100px;
    color: var(--text-main);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
}

.footer-info .footer-logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.footer-info p {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 350px;
}

.footer-links h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links ul {
    list-style: none;
    padding: 0;
}

.footer-links ul li {
    margin-bottom: 16px;
}

.footer-links ul li a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: 0.3s;
}

.footer-links ul li a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-bottom {
    max-width: 1200px;
    margin: 60px auto 0;
    padding: 30px 24px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Essential Pages Styling (About, Contact, Privacy, Terms) */
.page-container {
    max-width: 800px;
    margin: 120px auto 80px;
    padding: 0 24px;
    animation: fadeIn 0.8s ease-out;
}

.page-container h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 40px;
    letter-spacing: -1.5px;
    text-align: center;
}

.page-content {
    background: var(--card-bg);
    padding: 48px;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    line-height: 1.8;
    color: var(--text-main);
}

.page-content h2 {
    font-size: 1.5rem;
    margin: 32px 0 16px;
}

.page-content p {
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    .footer-info p {
        margin: 0 auto;
    }
    .page-container h1 {
        font-size: 2.2rem;
    }
    .page-content {
        padding: 30px;
    }
}

/* Auth & User Info */
.user-info {
    font-size: 0.9rem;
    font-weight: 600;
    margin-right: 12px;
}

.secondary-btn {
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}

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

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--card-bg);
    margin: 10% auto;
    padding: 40px;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 400px;
    border-radius: 24px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.close-modal {
    position: absolute;
    right: 24px;
    top: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

#auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 24px;
}

.auth-switch {
    margin-top: 24px;
    font-size: 0.9rem;
    text-align: center;
    color: var(--text-muted);
}

.auth-switch a {
    color: var(--accent-color);
    font-weight: 700;
    text-decoration: none;
}

/* Auth UI Enhancements */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 24px 0;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.divider::before, .divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider:not(:empty)::before {
    margin-right: 12px;
}

.divider:not(:empty)::after {
    margin-left: 12px;
}

.google-btn {
    width: 100%;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    cursor: pointer;
    transition: 0.3s;
}

.google-btn img {
    width: 20px;
}

.google-btn:hover {
    background: var(--bg-color);
    border-color: var(--text-muted);
}