:root {
    --bg-dark: #0f172a;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --primary: #38bdf8;
    --primary-hover: #0ea5e9;
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.1);
    --error: #ef4444;
    --error-bg: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* Background Blobs for Glassmorphism */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 10s infinite alternate ease-in-out;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: #38bdf8;
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 350px;
    height: 350px;
    background: #818cf8;
    bottom: -50px;
    right: -50px;
    animation-delay: -3s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: #c084fc;
    top: 40%;
    left: 60%;
    animation-delay: -6s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, 30px) scale(1.1); }
}

/* Container */
.container {
    width: 100%;
    max-width: 950px;
    padding: 2.5rem;
    margin: 2rem;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Header */
header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(to right, #4facfe, #00f2fe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Upload Section */
.upload-section {
    border: 2px dashed var(--glass-border);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.02);
}

.upload-section.drag-active {
    border-color: var(--primary);
    background: rgba(56, 189, 248, 0.05);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.upload-content svg {
    color: var(--primary);
    margin-bottom: 12px;
}

.upload-content h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.upload-content p {
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* Buttons */
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    padding: 12px 28px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    box-shadow: 0 4px 14px 0 rgba(56, 189, 248, 0.39);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 12px 28px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Results Section */
.hidden {
    display: none !important;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.status-badge {
    padding: 6px 16px;
    border-radius: 99px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.status-valid {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.status-invalid {
    background: var(--error-bg);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

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

.result-group h3 {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-weight: 500;
}

.result-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.result-item {
    padding: 12px 16px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    border: 1px solid transparent;
}

.result-item.success {
    border-color: rgba(34, 197, 94, 0.2);
    border-left: 4px solid var(--success);
}

.result-item.error {
    border-color: rgba(239, 68, 68, 0.2);
    border-left: 4px solid var(--error);
}

.result-item.warning {
    border-color: rgba(245, 158, 11, 0.2);
    border-left: 4px solid var(--warning);
}

.result-item.info {
    border-color: rgba(59, 130, 246, 0.2);
    border-left: 4px solid var(--info);
}

.result-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.result-item.success .result-icon { color: var(--success); }
.result-item.error .result-icon { color: var(--error); }
.result-item.warning .result-icon { color: var(--warning); }
.result-item.info .result-icon { color: var(--info); }

.actions {
    margin-top: 2rem;
    text-align: center;
}