@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #5c2d91; /* Rich Purple */
    --secondary-color: #7e4cb8; /* Soft Purple accent */
    --accent-color: #a78bfa; /* Light purple highlight */
    --text-color: #2d2d3a;
    --text-muted: #6b7280;
    --bg-color: #fafafa;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --header-height: 64px;
    --radius: 12px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(92,45,145,0.08);
    --shadow-lg: 0 8px 24px rgba(92,45,145,0.12);
    --transition: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    padding-top: var(--header-height);
    -webkit-font-smoothing: antialiased;
}

/* Always on top bar */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #4a2377 100%);
    color: white;
    padding: 0 2.5rem;
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header-content {
    width: 100%;
    max-width: 1100px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

header h1 {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0;
}

.brand-link {
    color: white;
    text-decoration: none;
    display: inline-block;
    padding: 0.35rem 0.65rem;
    border-radius: 8px;
    transition: var(--transition);
}

.brand-link:hover {
    background: rgba(255,255,255,0.15);
    color: white;
}

nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: var(--transition);
}

nav a:hover {
    background: rgba(255,255,255,0.15);
    color: white;
}

main {
    max-width: 1100px;
    margin: 3rem auto;
    padding: 0;
}

h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

/* Form Section */
.upload-section {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-top: 1.25rem;
}

.rules-section {
    background: #2e1a4f;
    color: #f8f8ff;
    padding: 1.75rem 2rem;
    border-radius: var(--radius) var(--radius) 0 0;
    box-shadow: var(--shadow-sm);
    margin-top: 1.5rem;
    margin-bottom: 0;
}

.rules-section h2 {
    color: #f8f8ff;
    margin-bottom: 0.75rem;
}

.advice-box {
    background: #e8d8ff;
    color: #000;
    padding: 0.65rem 2rem;
    border-radius: 0 0 var(--radius) var(--radius);
    border: none;
    margin: 0 0 1.25rem 0;
    font-weight: 600;
}

.rules-section ol {
    margin: 0;
    padding-left: 18px;
    line-height: 1.6;
}

.rules-section li + li {
    margin-top: 6px;
}

.upload-section h2 {
    margin-bottom: 0.5rem;
}

.upload-section > p {
    color: var(--text-muted);
    font-size: 0.925rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-color);
}

input[type="text"], 
input[type="email"],
input[type="password"],
input[type="file"],
textarea,
select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9rem;
    background: var(--bg-color);
    transition: var(--transition);
}

input[type="text"]:focus, 
input[type="email"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(167,139,250,0.2);
    background: white;
}

input[type="file"] {
    padding: 0.75rem;
    cursor: pointer;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

button[type="submit"] {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    padding: 0.9rem 2rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.925rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(92,45,145,0.25);
    width: 50%;
}

button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(92,45,145,0.35);
}

button[type="submit"]:active {
    transform: translateY(0);
}

/* ========================================
   LOGIN PAGE STYLES
   ======================================== */

.login-page {
    padding-top: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, #4a2377 50%, #2d1a4a 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 1.5rem;
}

.login-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.login-form .form-group {
    margin-bottom: 1.25rem;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    accent-color: var(--primary-color);
}

.forgot-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.forgot-link:hover {
    text-decoration: underline;
}

.btn-login {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    padding: 0.9rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(92,45,145,0.25);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(92,45,145,0.35);
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-muted);
}

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

/* ========================================
   HOMEPAGE STYLES
   ======================================== */

.hero {
    background: linear-gradient(135deg, rgba(92,45,145,0.05) 0%, rgba(167,139,250,0.1) 100%);
    border-radius: var(--radius);
    padding: 4rem 2rem;
    text-align: center;
    margin-bottom: 3rem;
    border: 1px solid var(--border-color);
}

.hero-content h2 {
    font-size: 2rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.hero-content p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.925rem;
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(92,45,145,0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(92,45,145,0.35);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent-color);
    background: rgba(167,139,250,0.08);
}

.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

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

.stat-info {
    display: flex;
    flex-direction: column;
    flex: 1;
    align-items: center;
    text-align: center;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.quick-links {
    margin-bottom: 3rem;
}

.quick-links h3 {
    font-size: 1.25rem;
    margin-bottom: 1.25rem;
    color: var(--text-color);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.quick-link-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-color);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.quick-link-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.quick-link-icon {
    font-size: 1.5rem;
}

.quick-link-name {
    font-weight: 500;
    font-size: 0.925rem;
}

.loading-text {
    color: var(--text-muted);
    font-size: 0.925rem;
}

.disclaimer {
    background: linear-gradient(135deg, #fff1d6 0%, #ffd9aa 100%);
    border: 1px solid #e8aa5a;
    border-radius: var(--radius);
    padding: 0.9rem 1.1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    color: #6a3500;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-top: 1.5rem;
}

.disclaimer h3 {
    margin-bottom: 0.4rem;
    color: #6a3500;
    font-size: 1rem;
}

.disclaimer p + p {
    margin-top: 0.35rem;
}

/* ========================================
   ARCHIVE PAGE STYLES
   ======================================== */

.archive-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 1rem 1.25rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: var(--transition);
}

.breadcrumb a:hover {
    background: rgba(92,45,145,0.08);
}

.breadcrumb-sep {
    color: var(--text-muted);
}

.view-toggle {
    display: flex;
    gap: 0.25rem;
    background: var(--bg-color);
    padding: 0.25rem;
    border-radius: 8px;
}

.view-btn {
    background: transparent;
    border: none;
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.view-btn.active {
    background: var(--card-bg);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.browser-container {
    min-height: 300px;
}

/* List View */
.browser-container.view-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.browser-container.view-list .browser-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.browser-container.view-list .browser-item:hover {
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.browser-container.view-list .item-icon {
    font-size: 1.25rem;
}

.browser-container.view-list .item-name {
    font-weight: 500;
    font-size: 0.95rem;
}

/* Gallery View */
.browser-container.view-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.browser-container.view-gallery .browser-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.browser-container.view-gallery .browser-item:hover {
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.browser-container.view-gallery .item-icon {
    font-size: 2.5rem;
}

.browser-container.view-gallery .item-name {
    font-weight: 500;
    font-size: 0.85rem;
    word-break: break-word;
}

.browser-item.folder .item-icon {
    filter: drop-shadow(0 2px 4px rgba(92,45,145,0.2));
}

.browser-item.file .item-icon {
    opacity: 0.8;
}

.empty-text,
.error-text {
    text-align: center;
    color: var(--text-muted);
    padding: 4rem 2rem;
    font-size: 0.95rem;
}

.error-text {
    color: #dc2626;
}

/* Active nav link */
nav a.active {
    background: rgba(255,255,255,0.2);
}

/* Textarea styling */
textarea {
    resize: vertical;
    min-height: 80px;
}