/* Login Page Styles - Enhanced Dark Theme */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary, #0B0F1A);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

/* Animated gradient background */
body::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 40%);
    animation: gradientShift 20s ease infinite;
    z-index: 0;
}

@keyframes gradientShift {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-10%, 10%) rotate(180deg); }
}

.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: rgba(20, 27, 45, 0.8);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 48px 40px;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(99, 102, 241, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 2em;
    font-weight: 700;
    background: linear-gradient(135deg, #6366F1 0%, #3B82F6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-header p {
    color: var(--text-secondary, #CBD5E1);
    font-size: 0.95em;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-field label {
    color: var(--text-secondary, #CBD5E1);
    font-size: 0.9em;
    font-weight: 500;
}

.form-field input {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-primary, #334155);
    background: var(--bg-primary, #0B0F1A);
    color: var(--text-primary, #F1F5F9);
    font-size: 1em;
    transition: all 0.2s ease;
}

.form-field input:focus {
    outline: none;
    border-color: var(--accent-primary, #6366F1);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    background: var(--bg-secondary, #141B2D);
}

.btn-login {
    margin-top: 8px;
    padding: 14px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    background: linear-gradient(135deg, #6366F1 0%, #3B82F6 100%);
    color: #fff;
    box-shadow: 
        0 4px 12px rgba(99, 102, 241, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.btn-login::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 ease;
}

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

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 
        0 6px 20px rgba(99, 102, 241, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

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

.error-message {
    margin-top: 4px;
    padding: 12px 16px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    color: var(--error, #EF4444);
    font-size: 0.9em;
    text-align: center;
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 36px 28px;
    }
    
    .login-header h1 {
        font-size: 1.75em;
    }
}