/**
 * Login Page - Premium Blue Design
 */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(30px, 30px) rotate(180deg); }
}

.login-container {
    background: white;
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    width: 100%;
    max-width: 440px;
    overflow: hidden;
    position: relative;
    z-index: 1;
    border: 1px solid rgba(255,255,255,0.2);
}

.login-header {
    background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 100%);
    color: white;
    padding: 48px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 100%);
    pointer-events: none;
}

.login-header h1 {
    font-size: 32px;
    margin-bottom: 12px;
    font-weight: 800;
    letter-spacing: -0.02em;
    position: relative;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.login-header p {
    opacity: 0.95;
    font-size: 15px;
    font-weight: 500;
    position: relative;
}

.login-icon {
    font-size: 56px;
    margin-bottom: 16px;
    display: inline-block;
    animation: iconFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2));
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.login-body {
    padding: 48px 40px;
    background: white;
}

.login-error {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
    border: 1px solid #fca5a5;
    padding: 14px 18px;
    border-radius: 12px;
    margin-bottom: 24px;
    font-size: 14px;
    animation: shake 0.5s;
    font-weight: 500;
    box-shadow: 0 4px 6px rgba(239, 68, 68, 0.1);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-8px); }
    20%, 40%, 60%, 80% { transform: translateX(8px); }
}

.form-group {
    margin-bottom: 24px;
}

label {
    display: block;
    margin-bottom: 10px;
    color: #475569;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    background: white;
    color: #0f172a;
}

input[type="text"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: #1e40af;
    box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.1);
    background: white;
}

.login-button {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    letter-spacing: 0.02em;
}

.login-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px -5px rgba(30, 64, 175, 0.4);
}

.login-button:active {
    transform: translateY(-1px);
}

.login-footer {
    padding: 28px 40px;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    text-align: center;
    color: #64748b;
    font-size: 13px;
    line-height: 1.6;
    border-top: 1px solid #e2e8f0;
}

.login-footer small {
    display: block;
    margin-top: 8px;
    opacity: 0.8;
    font-size: 12px;
}

@media (max-width: 480px) {
    .login-container {
        margin: 10px;
        border-radius: 20px;
    }
    
    .login-header {
        padding: 40px 32px;
    }
    
    .login-header h1 {
        font-size: 28px;
    }
    
    .login-icon {
        font-size: 48px;
    }
    
    .login-body {
        padding: 40px 32px;
    }
    
    .login-footer {
        padding: 24px 32px;
    }
}