/* Base Styles */
:root {
    --primary-color: #0071e3;
    --secondary-color: #86868b;
    --background-color: #f5f5f7;
    --text-color: #1d1d1f;
    --success-color: #4cd964;
    --error-color: #ff3b30;
    --border-radius: 12px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #0051a3;
}

/* Header & Navigation */
header {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* Main Content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Flash Messages */
.flash-messages {
    margin-bottom: 2rem;
}

.flash-message {
    background-color: var(--error-color);
    color: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
    text-align: center;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 1rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, #0071e3, #00c7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--secondary-color);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
}

.feature {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature-icon {
    margin-bottom: 1.5rem;
}

.feature-icon img {
    width: 64px;
    height: 64px;
}

.feature h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature p {
    color: var(--secondary-color);
}

/* Upload Section */
.upload-section {
    margin: 4rem 0;
}

.upload-container {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 3rem;
    box-shadow: var(--box-shadow);
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.upload-container h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.upload-instructions {
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.file-upload {
    margin-bottom: 2rem;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed #d2d2d7;
    border-radius: var(--border-radius);
    padding: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-upload-label:hover {
    border-color: var(--primary-color);
    background-color: rgba(0, 113, 227, 0.05);
}

.upload-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.upload-text {
    font-weight: 500;
}

.file-input {
    display: none;
}

.file-name {
    margin-top: 1rem;
    color: var(--secondary-color);
}

.upload-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 20px;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.upload-button:hover {
    background-color: #0051a3;
}

/* Success Page */
.success-section {
    text-align: center;
    padding: 2rem 0;
}

.success-container {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 3rem;
    box-shadow: var(--box-shadow);
    max-width: 600px;
    margin: 0 auto;
}

.success-icon {
    background-color: var(--success-color);
    color: white;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 2rem;
}

.skin-preview {
    margin: 2rem 0;
    background-color: #f5f5f7;
    padding: 1rem;
    border-radius: var(--border-radius);
    display: inline-block;
}

.skin-image {
    width: 128px;
    height: 128px;
    image-rendering: pixelated;
}

.direct-link-container {
    margin: 2rem 0;
}

.link-display {
    display: flex;
    margin-top: 1rem;
}

.link-display input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid #d2d2d7;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-size: 0.9rem;
}

.copy-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    padding: 0 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.copy-button:hover {
    background-color: #0051a3;
}

.actions {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.action-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 20px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: inline-block;
}

.action-button:hover {
    background-color: #0051a3;
}

.action-button.secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.action-button.secondary:hover {
    background-color: rgba(0, 113, 227, 0.1);
}

/* Skins List Page */
.skins-section {
    padding: 2rem 0;
}

.skins-header {
    text-align: center;
    margin-bottom: 3rem;
}

.skins-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.skins-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.skin-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.skin-card:hover {
    transform: translateY(-5px);
}

.skin-card .skin-preview {
    background-color: #f5f5f7;
    padding: 1.5rem;
    display: flex;
    justify-content: center;
    margin: 0;
}

.skin-info {
    padding: 1.5rem;
}

.skin-filename {
    font-weight: 500;
    margin-bottom: 0.5rem;
    word-break: break-all;
}

.skin-upload-time {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.skin-actions {
    display: flex;
    gap: 0.5rem;
}

.skin-link {
    flex: 1;
    text-align: center;
    padding: 0.5rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

.copy-link {
    flex: 1;
    padding: 0.5rem;
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.copy-link:hover {
    background-color: rgba(0, 113, 227, 0.1);
}

.no-skins {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.no-skins p {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

/* Footer */
footer {
    background-color: #f5f5f7;
    border-top: 1px solid #d2d2d7;
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
}

.footer-info p {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .upload-container,
    .success-container {
        padding: 2rem;
    }
    
    .actions {
        flex-direction: column;
    }
    
    .nav {
        flex-direction: column;
    }
    
    .nav-links {
        margin-top: 1rem;
    }
    
    .nav-links li {
        margin-left: 1rem;
        margin-right: 1rem;
    }
}