/* Modern CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --secondary-color: #4f46e5;
    --text-color: #1f2937;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --border-color: #e2e8f0;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
}

#app {
    min-height: 100vh;
}

.page-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

h1 {
    font-size: 2.25rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.title-underline {
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 0 auto 1.5rem;
    border-radius: 2px;
}

.subtitle {
    text-align: center;
    color: #64748b;
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* Upload Container */
.upload-container {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 2rem;
    margin-top: 2rem;
    margin-bottom: 3rem;
}

.upload-section {
    flex: 1;
    max-width: 400px;
}

.upload-box {
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    padding: 2.5rem 2rem;
    text-align: center;
    background: var(--white);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.upload-box:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

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

.upload-box h3 {
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-color);
    font-size: 1.25rem;
}

.upload-text {
    color: #64748b;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.file-input {
    display: none;
}

.choose-file-btn {
    background: var(--white);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.choose-file-btn:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* Controls Section */
.controls-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    justify-content: center;
}

.body-part-select {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 0.95rem;
    width: 200px;
    color: var(--text-color);
    background: var(--white);
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.body-part-select:hover {
    border-color: var(--primary-color);
}

.try-on-btn {
    background: #e2e8f0;
    color: var(--text-color);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
}

.try-on-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.try-on-icon {
    font-size: 1.1rem;
}

/* Pro Section */
.pro-section {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
}

.pro-divider {
    position: relative;
    text-align: center;
    margin-bottom: 2rem;
}

.pro-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
    z-index: 1;
}

.pro-divider span {
    background: var(--light-bg);
    padding: 0 1rem;
    color: #64748b;
    font-size: 0.95rem;
    position: relative;
    z-index: 2;
}

.pro-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.pro-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px -2px rgba(99, 102, 241, 0.3);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .page-container {
        padding: 1rem;
        min-height: auto;
    }

    .upload-container {
        flex-direction: column;
        align-items: center;
    }
    
    .upload-section {
        width: 100%;
    }
    
    .controls-section {
        order: 3;
        width: 100%;
        align-items: center;
    }

    .body-part-select {
        width: 100%;
        max-width: 400px;
    }

    .try-on-btn {
        width: 100%;
        max-width: 400px;
    }

    .pro-btn {
        width: 100%;
        max-width: 400px;
        justify-content: center;
    }
}