/* Login Modern CSS */
:root {
    --primary-color: #2563eb;
    --primary-light: #3b82f6;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border-color: #e5e7eb;
    --background-light: #f9fafb;
    --background-dark: #111827;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow-x: hidden;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(147, 51, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
    z-index: 2;
}

.auth-container {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 3rem;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(148, 163, 184, 0.1);
    position: relative;
    z-index: 3;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-container {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.logo-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.logo-container img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    z-index: 1;
    position: relative;
}

.logo-container i {
    font-size: 2rem;
    color: white;
    z-index: 1;
    position: relative;
}

.brand-title {
    font-size: 2rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-subtitle {
    font-size: 1rem;
    color: #cbd5e1;
    margin-bottom: 1rem;
}

.security-icon {
    width: 40px;
    height: 40px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.security-notice {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #e2e8f0;
    font-size: 0.9rem;
}

.security-notice i {
    color: #60a5fa;
    margin-right: 0.5rem;
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    color: var(--error-color);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.auth-form {
    margin-bottom: 2rem;
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #f1f5f9;
    margin-bottom: 0.5rem;
}

.form-label i {
    margin-right: 0.5rem;
    color: #60a5fa;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid rgba(148, 163, 184, 0.3);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(51, 65, 85, 0.6);
    backdrop-filter: blur(10px);
    color: #f1f5f9;
}

.form-control:focus {
    outline: none;
    border-color: #60a5fa;
    box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.1);
    background: rgba(51, 65, 85, 0.8);
}

.form-control::placeholder {
    color: #94a3b8;
}

.verify-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.verify-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.verify-btn:hover::before {
    left: 100%;
}

.verify-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
}

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

.verify-btn i {
    margin-right: 0.5rem;
}

.copyright {
    text-align: center;
    color: #94a3b8;
    font-size: 0.8rem;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(148, 163, 184, 0.2);
}

@media (max-width: 480px) {
    .auth-container {
        margin: 1rem;
        padding: 2rem;
        border-radius: 16px;
    }
    
    .brand-title {
        font-size: 1.75rem;
    }
    
    .form-control {
        padding: 0.75rem;
    }
}