/* ===== KOLLERSI UDID Page - Modern CSS ===== */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --background: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-primary);
    line-height: 1.6;
}

/* Container */
.container {
    max-width: 600px;
    width: 100%;
    animation: fadeIn 0.6s ease-out;
}

/* Card Styles */
.card {
    background: var(--card-bg);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    padding: 40px;
    margin: 20px auto;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-lg);
}

.logo svg {
    width: 48px;
    height: 48px;
}

h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 400;
}

.brand-name {
    color: var(--primary-color);
    font-weight: 700;
}

/* Steps */
.steps {
    margin: 30px 0;
}

.step {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
    margin-right: 15px;
}

.step-content {
    flex: 1;
}

.step-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.step-description {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    border: none;
    cursor: pointer;
    width: 100%;
    margin-top: 10px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color), #059669);
}

/* Device Info Display */
.device-info {
    background: var(--background);
    border-radius: 12px;
    padding: 20px;
    margin: 20px 0;
}

.info-item {
    display: flex;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 140px;
    font-size: 14px;
}

.info-value {
    color: var(--text-primary);
    font-weight: 500;
    word-break: break-all;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 14px;
}

/* Alert/Notice */
.notice {
    background: #fef3c7;
    border-left: 4px solid #f59e0b;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    font-size: 14px;
    color: #92400e;
}

.notice strong {
    display: block;
    margin-bottom: 5px;
}

/* Success Message */
.success-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: scaleIn 0.5s ease-out;
}

.success-icon svg {
    width: 48px;
    height: 48px;
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 640px) {
    .card {
        padding: 30px 20px;
        border-radius: 16px;
    }

    h1 {
        font-size: 24px;
    }

    .subtitle {
        font-size: 14px;
    }

    .logo {
        width: 64px;
        height: 64px;
    }

    .logo svg {
        width: 36px;
        height: 36px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 15px;
    }

    .info-item {
        flex-direction: column;
    }

    .info-label {
        margin-bottom: 5px;
        min-width: auto;
    }
}

/* Loading State */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Copy Button */
.copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.copy-btn:hover {
    background: var(--border-color);
}

.copy-btn svg {
    width: 16px;
    height: 16px;
}