/* ============================================================================
   FLEET IQ - Login Page Styles
   Modern & Secure Login Interface
   Version: 1.0
   ============================================================================ */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #0f172a;
    min-height: 100vh;
    overflow: hidden;
}

/* ============================================================================
   LOGIN CONTAINER
   ============================================================================ */

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    position: relative;
}

.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 440px;
    padding: 48px 40px;
    position: relative;
    z-index: 10;
    animation: fadeInUp 0.6s ease-out;
}

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

/* ============================================================================
   HEADER
   ============================================================================ */

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

.login-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}

.login-logo i {
    font-size: 36px;
    color: white;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 8px;
}

.login-header p {
    font-size: 14px;
    color: #64748b;
    font-weight: 500;
}

/* ============================================================================
   ALERTS
   ============================================================================ */

.alert {
    padding: 14px 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.alert i {
    font-size: 18px;
}

.alert-error {
    background: #fee2e2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #d1fae5;
    color: #059669;
    border: 1px solid #a7f3d0;
}

/* ============================================================================
   FORM
   ============================================================================ */

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 8px;
}

.form-group label i {
    color: #64748b;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 15px;
    color: #1e293b;
    transition: all 0.2s ease;
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

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

/* Password Input Wrapper */
.password-input-wrapper {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #64748b;
    cursor: pointer;
    padding: 8px;
    transition: color 0.2s ease;
}

.toggle-password:hover {
    color: #2563eb;
}

.toggle-password i {
    font-size: 18px;
}

/* ============================================================================
   FORM OPTIONS
   ============================================================================ */

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #475569;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #2563eb;
}

.forgot-password {
    font-size: 14px;
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.forgot-password:hover {
    color: #1e40af;
    text-decoration: underline;
}

/* ============================================================================
   LOGIN BUTTON
   ============================================================================ */

.btn-login {
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-login:hover {
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
    transform: translateY(-2px);
}

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

.btn-login i {
    font-size: 18px;
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.login-footer {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid #e2e8f0;
}

.security-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: #10b981;
    font-weight: 500;
    margin-bottom: 12px;
}

.security-notice i {
    font-size: 14px;
}

.version {
    font-size: 12px;
    color: #94a3b8;
}

/* ============================================================================
   BACKGROUND
   ============================================================================ */

.login-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.gradient-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
}

.pattern-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
    animation: patternShift 20s ease-in-out infinite;
}

@keyframes patternShift {
    0%, 100% {
        transform: scale(1) translateY(0);
    }
    50% {
        transform: scale(1.1) translateY(-20px);
    }
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 640px) {
    .login-card {
        padding: 32px 24px;
        max-width: 100%;
    }
    
    .login-header h1 {
        font-size: 24px;
    }
    
    .form-options {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
}

/* ============================================================================
   ACCESSIBILITY
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}