:root {
    --primary-green: #6EE7B7;
    --primary-hover: #34D399;
    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --bg-color: #F8F9FA;
    --white: #FFFFFF;
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}


.navbar {
    padding: 20px 40px;
    background: transparent;
    border-bottom: 1px solid #E5E7EB;
}

.logo {
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}
.logo-icon { 
    color: var(--primary-green); 
    font-size: 1.4rem; 
}

.container {
    max-width: 700px;
    margin: 40px auto;
    padding: 20px;
    text-align: center;
    flex: 1;
}

.header-text h1 { 
    font-size: 2.5rem; 
    margin-bottom: 15px; 
}

.header-text p { 
    color: var(--text-gray); 
    margin-bottom: 40px; 
    line-height: 1.6; 
}


.upload-area {
    background: var(--white);
    border: 2px dashed #D1D5DB;
    border-radius: 16px;
    padding: 50px 20px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--primary-green);
    background-color: #ECFDF5;
}

.icon-upload {
    font-size: 3rem;
    color: var(--primary-green);
    margin-bottom: 15px;
}

.upload-area h3 { 
    margin-bottom: 8px; 
    font-size: 1.1rem; 
}
.upload-area p { 
    color: var(--text-gray); 
    font-size: 0.9rem; 
    margin-bottom: 25px; 
}


.btn-secondary {
    background: #F3F4F6;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    color: var(--text-dark);
}
.btn-secondary:hover { 
    background: #E5E7EB; 
}

.btn-primary {
    background-color: var(--primary-green);
    color: #064E3B;
    border: none;
    padding: 15px 40px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 20px;
    width: 100%;
    box-shadow: 0 4px 10px rgba(110, 231, 183, 0.4);
    transition: 0.3s;
}
.btn-primary:hover { 
    background-color: var(--primary-hover); 
    transform: translateY(-2px); 
}


#preview-container { 
    margin-top: 30px; 
}
#image-preview {
    max-width: 200px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: block;
    margin: 0 auto;
}

.result-card {
    background: var(--white);
    border-radius: 16px;
    padding: 30px;
    margin-top: 30px;
    display: flex;
    align-items: center;
    text-align: left;
    gap: 30px;
    box-shadow: var(--shadow);
    animation: fadeIn 0.5s ease;
}

.result-image img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.result-info .label { 
    color: var(--text-gray); 
    font-size: 0.9rem; 
    text-transform: uppercase; 
    letter-spacing: 1px; 
}
.result-info h2 { 
    color: #059669; 
    font-size: 2.5rem; 
    margin: 5px 0 10px 0; 
}
.btn-text { 
    background: none; 
    border: none; 
    color: var(--text-gray); 
    text-decoration: underline; 
    cursor: pointer; 
}


.error-card {
    background: #FEF2F2;
    border: 1px solid #FECACA;
    border-radius: 16px;
    padding: 30px;
    margin-top: 30px;
    color: #991B1B;
}
.error-icon { 
    font-size: 2rem; 
    margin-bottom: 10px; 
}


.hidden { 
    display: none !important; 
}
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-green);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}
footer { 
    text-align: center; 
    padding: 30px; 
    color: var(--text-gray); 
    font-size: 0.8rem; 
    margin-top: auto; 
}

@keyframes spin { 
    0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } 
}
@keyframes fadeIn { 
    from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } 
}


@media (max-width: 600px) {
    .result-card { flex-direction: column; text-align: center; }
}